:root{
  --navy:#071a35;--navy2:#0d2b55;--blue:#1756a0;--gold:#c99b39;--gold2:#f0c66f;
  --ink:#172133;--muted:#627087;--paper:#ffffff;--soft:#f5f8fc;--line:#e3e9f1;
  --green:#08795f;--shadow:0 22px 60px rgba(7,26,53,.12);--radius:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}.container{width:min(1180px,calc(100% - 36px));margin-inline:auto}.serif{font-family:Georgia,"Times New Roman",serif}.gold{color:var(--gold)}
.announce{background:var(--navy);color:#dce7f7;font-size:12px}.announce .container{min-height:34px;display:flex;align-items:center;justify-content:center;gap:10px;text-align:center}.announce strong{color:var(--gold2)}
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(227,233,241,.9)}.navrow{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:240px}.brand img{width:60px;height:60px;object-fit:contain}.brand-copy{display:flex;flex-direction:column;line-height:1.05}.brand-copy b{font-family:Georgia,serif;font-size:16px;color:var(--navy)}.brand-copy small{font-size:9px;text-transform:uppercase;letter-spacing:.15em;color:var(--muted);margin-top:6px}.nav{display:flex;align-items:center;gap:22px;font-size:13px;font-weight:700;color:#3a475c}.nav a{padding:9px 0;position:relative}.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:3px;height:2px;background:var(--gold);transition:.2s}.nav a:hover:after,.nav a.active:after{right:0}.nav .wa{background:var(--navy);color:#fff;padding:10px 14px;border-radius:999px}.nav .wa:after{display:none}.menu-btn{display:none;border:0;background:transparent;font-size:28px;color:var(--navy)}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 82% 24%,rgba(23,86,160,.13),transparent 28%),linear-gradient(180deg,#fbfdff,#f4f8fe)}.hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(201,155,57,.14);border-radius:50%;right:-170px;bottom:-190px}.hero-grid{min-height:670px;padding:64px 0 74px;display:grid;grid-template-columns:1.02fr .98fr;gap:55px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.17em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:2px;background:var(--gold)}.hero h1,.page-hero h1,.section-title{font-family:Georgia,"Times New Roman",serif;color:var(--navy);letter-spacing:-.035em}.hero h1{font-size:clamp(48px,6.4vw,82px);line-height:.98;margin:18px 0 24px}.hero h1 span{color:var(--blue)}.lead{font-size:18px;color:var(--muted);max-width:680px}.btnrow{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:12px;border:1px solid transparent;font-weight:800;font-size:13px;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--navy);color:#fff;box-shadow:0 14px 28px rgba(7,26,53,.16)}.btn-outline{border-color:#cbd7e6;background:#fff;color:var(--navy)}.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1b1a16}.btn-disabled{background:#eef2f7;color:#7d899c;cursor:default}.btn-green{background:#0a7f60;color:#fff}
.hero-visual{position:relative;min-height:540px}.book-stage{position:absolute;inset:0}.hero-book{position:absolute;border-radius:8px;box-shadow:0 32px 70px rgba(7,26,53,.24);border:1px solid rgba(255,255,255,.9);transition:.25s}.hero-book:hover{transform:translateY(-7px) rotate(0deg)!important}.hero-book.main{width:285px;right:80px;top:30px;z-index:4;transform:rotate(2deg)}.hero-book.b2{width:150px;left:26px;top:72px;z-index:2;transform:rotate(-8deg)}.hero-book.b3{width:142px;left:72px;bottom:26px;z-index:3;transform:rotate(5deg)}.hero-book.b4{width:150px;right:0;bottom:12px;z-index:2;transform:rotate(8deg)}.latest-badge{position:absolute;right:12px;top:5px;z-index:6;background:var(--gold);color:#111;padding:9px 12px;border-radius:999px;font-size:10px;font-weight:900;letter-spacing:.11em;box-shadow:0 8px 20px rgba(201,155,57,.24)}.author-chip{position:absolute;left:0;bottom:160px;z-index:7;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:8px 13px 8px 8px;border-radius:999px;display:flex;align-items:center;gap:9px}.author-chip img{width:46px;height:46px;border-radius:50%;object-fit:cover;object-position:50% 18%}.author-chip b{font-size:12px;color:var(--navy);display:block}.author-chip small{font-size:10px;color:var(--muted)}
.stats-wrap{margin-top:-30px;position:relative;z-index:9}.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.stat{padding:24px;text-align:center;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat strong{display:block;font-size:28px;color:var(--navy);font-family:Georgia,serif}.stat span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.09em}
.section{padding:92px 0}.section-soft{background:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:40px}.section-title{font-size:clamp(34px,4vw,52px);line-height:1.05;margin:10px 0 0}.section-head p{max-width:520px;color:var(--muted);margin:0}.section-kicker{color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.17em;text-transform:uppercase}
.latest-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:56px;align-items:center}.latest-cover{max-width:360px;margin:auto;border-radius:8px;box-shadow:0 35px 70px rgba(7,26,53,.2)}.pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#fff5db;color:#79570a;font-size:10px;font-weight:900;letter-spacing:.11em;text-transform:uppercase}.latest-copy h2{font-family:Georgia,serif;font-size:42px;line-height:1.08;color:var(--navy);margin:14px 0}.latest-copy p{color:var(--muted)}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.feature{padding:13px 14px;border:1px solid var(--line);border-radius:13px;background:#fff;font-size:12px;font-weight:700;color:#34445c}.feature:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;margin-right:8px;background:#eaf5ff;color:var(--blue)}
.book-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.book-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}.book-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}.book-card .coverbox{height:370px;background:linear-gradient(145deg,#eef4fb,#fff);display:grid;place-items:center;padding:24px}.book-card .coverbox img{max-height:100%;width:auto;border-radius:6px;box-shadow:0 18px 36px rgba(7,26,53,.18)}.book-card-body{padding:22px;display:flex;flex-direction:column;flex:1}.book-tag{font-size:9px;font-weight:900;color:var(--blue);letter-spacing:.11em;text-transform:uppercase}.book-card h3{font-size:17px;line-height:1.35;color:var(--navy);margin:10px 0}.book-card p{font-size:12px;color:var(--muted)}.book-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:14px}.small-btn{border:1px solid var(--line);padding:8px 10px;border-radius:9px;font-size:10px;font-weight:800}.small-btn.primary{background:var(--navy);color:#fff;border-color:var(--navy)}.small-btn.gold{background:#fff6dc;color:#76570e;border-color:#ead18d}.small-btn.disabled{background:#f0f3f7;color:#7c8799}
.exam-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.exam-card{border:1px solid var(--line);border-radius:18px;background:#fff;padding:24px;min-height:210px;display:flex;flex-direction:column;transition:.22s}.exam-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(7,26,53,.08)}.exam-card.featured{background:var(--navy);border-color:var(--navy);color:#fff}.exam-icon{width:48px;height:48px;border-radius:14px;background:#edf4fd;color:var(--blue);display:grid;place-items:center;font-size:11px;font-weight:900}.featured .exam-icon{background:rgba(255,255,255,.12);color:var(--gold2)}.exam-card h3{color:var(--navy);margin:22px 0 8px}.featured h3{color:#fff}.exam-card p{font-size:12px;color:var(--muted)}.featured p{color:#c9d6e9}.exam-card a{margin-top:auto;font-size:11px;font-weight:900;color:var(--blue)}.featured a{color:var(--gold2)}
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.resource-card{border:1px solid var(--line);border-radius:18px;padding:25px;background:#fff}.resource-card .num{font-family:Georgia,serif;color:var(--gold);font-size:24px}.resource-card h3{color:var(--navy);margin:18px 0 6px}.resource-card p{font-size:12px;color:var(--muted)}
.free-panel{background:linear-gradient(130deg,var(--navy),#143f78);color:#fff;border-radius:28px;padding:46px;display:grid;grid-template-columns:1fr .9fr;gap:50px;align-items:center;overflow:hidden;position:relative}.free-panel:after{content:"2015—2026";position:absolute;right:-10px;bottom:-35px;font-family:Georgia,serif;font-size:86px;font-weight:700;color:rgba(255,255,255,.04)}.free-panel h2{font-family:Georgia,serif;font-size:42px;line-height:1.08;margin:10px 0}.free-panel p{color:#cbd8e9}.year-chips{display:flex;flex-wrap:wrap;gap:8px}.year-chips span{padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);font-size:10px}.coming{color:var(--gold2);font-weight:900;font-size:11px;text-transform:uppercase;letter-spacing:.1em}
.qod{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}.quiz{border:1px solid var(--line);border-radius:22px;background:#fff;padding:28px;box-shadow:0 18px 50px rgba(7,26,53,.08)}.quiz-meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.09em}.quiz h3{color:var(--navy);font-size:20px}.answers{display:grid;grid-template-columns:1fr 1fr;gap:10px}.answers button{padding:13px;border:1px solid var(--line);border-radius:11px;background:#fbfcfe;text-align:left;color:var(--ink);cursor:pointer}.answers button.correct{background:#ecf8f2;border-color:#53a97c;color:#216743}.answers button.wrong{background:#fff0f0;border-color:#d67b7b;color:#953d3d}.feedback{min-height:38px;margin-top:14px;color:var(--muted);font-size:12px}
.author-home{display:grid;grid-template-columns:290px 1fr;gap:48px;align-items:center}.author-photo{border-radius:26px;overflow:hidden;box-shadow:var(--shadow);background:#eef2f8}.author-photo img{width:100%;height:360px;object-fit:cover;object-position:50% 20%}.author-copy h2{font-family:Georgia,serif;color:var(--navy);font-size:42px;margin:8px 0}.role{font-weight:900;color:var(--blue);letter-spacing:.04em}.author-copy p{color:var(--muted)}
.cta{padding:70px 0;background:linear-gradient(110deg,#081a34,#0d2d58);color:#fff}.cta-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}.cta h2{font-family:Georgia,serif;font-size:36px;margin:0}.cta p{margin:7px 0 0;color:#c4d0df}
.page-hero{background:linear-gradient(180deg,#f9fbfe,#f1f6fc);padding:70px 0;border-bottom:1px solid var(--line)}.page-hero-grid{display:grid;grid-template-columns:1fr .46fr;gap:50px;align-items:center}.page-hero h1{font-size:clamp(42px,5vw,66px);line-height:1;margin:15px 0}.page-hero p{color:var(--muted);max-width:700px}.page-hero-logo{max-width:360px;margin-left:auto}
.detail-book{display:grid;grid-template-columns:320px 1fr;gap:44px;padding:34px 0;border-bottom:1px solid var(--line)}.detail-book:last-child{border-bottom:0}.detail-book .detail-cover{width:100%;max-height:470px;object-fit:contain;border-radius:7px;box-shadow:0 22px 45px rgba(7,26,53,.17)}.detail-book h2{font-family:Georgia,serif;color:var(--navy);font-size:34px;margin:8px 0}.detail-book p{color:var(--muted)}.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:20px 0}.checkitem{padding:10px 12px;background:var(--soft);border-radius:10px;font-size:12px}.checkitem:before{content:"✓";font-weight:900;color:var(--green);margin-right:8px}
.study-path{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.step b{display:block;color:var(--navy);margin:7px 0}.step small{color:var(--muted)}.step .stepno{font-family:Georgia,serif;color:var(--gold);font-size:25px}
.all-resources{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.resource-tile{border:1px solid var(--line);border-radius:14px;padding:17px;background:#fff}.resource-tile b{color:var(--navy);font-size:13px}.resource-tile small{display:block;color:var(--muted);margin-top:5px}
.pyq-list{display:grid;gap:14px}.pyq-year{border:1px solid var(--line);border-radius:16px;background:#fff;padding:20px;display:grid;grid-template-columns:90px 1fr;gap:20px;align-items:start}.pyq-year h3{font-family:Georgia,serif;color:var(--navy);font-size:28px;margin:0}.paper-buttons{display:flex;flex-wrap:wrap;gap:8px}.paper-btn{display:inline-flex;align-items:center;gap:7px;padding:9px 11px;border-radius:10px;background:#f2f5f9;color:#6b788c;font-size:11px;font-weight:800;border:1px solid #e4e9f0}.paper-btn:after{content:"Coming Soon";font-size:8px;letter-spacing:.06em;text-transform:uppercase;color:#9a7a27;background:#fff5d7;padding:3px 5px;border-radius:5px}.paper-btn.download{color:var(--navy);background:#fff;border-color:#d7dfeb;transition:.2s ease}.paper-btn.download:hover{transform:translateY(-1px);border-color:var(--gold);box-shadow:0 8px 20px rgba(14,35,68,.08)}.paper-btn.download:after{content:"Download PDF";color:#21633b;background:#eaf8ef}
.placeholder-box{border:2px dashed #d5deea;border-radius:22px;padding:46px;text-align:center;background:#fbfcfe}.placeholder-box h2{font-family:Georgia,serif;color:var(--navy)}.placeholder-box p{color:var(--muted);max-width:700px;margin-inline:auto}
.about-main{display:grid;grid-template-columns:360px 1fr;gap:55px;align-items:start}.about-main .portrait{border-radius:26px;overflow:hidden;box-shadow:var(--shadow);position:sticky;top:110px}.about-main .portrait img{height:470px;width:100%;object-fit:cover;object-position:50% 16%}.about-text h2{font-family:Georgia,serif;color:var(--navy);font-size:42px;margin:7px 0}.about-text .exact-bio{font-family:Georgia,"Times New Roman",serif;font-size:17px;color:#2a3342;line-height:1.85}.about-text .exact-bio p{margin:0 0 18px}
.mini-books{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}.mini-books img{height:220px;width:100%;object-fit:contain;background:#f5f7fa;border-radius:12px;padding:10px;border:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px}.contact-card{background:var(--navy);color:#fff;border-radius:26px;padding:34px}.contact-card h2{font-family:Georgia,serif;font-size:34px;margin:0 0 18px}.contact-item{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.12)}.contact-item:last-child{border-bottom:0}.contact-item small{display:block;color:#9fb0c7;text-transform:uppercase;letter-spacing:.1em;font-size:9px}.contact-item b{display:block;margin-top:4px;font-size:14px}.contact-form{border:1px solid var(--line);border-radius:26px;padding:32px;background:#fff}.contact-form h2{font-family:Georgia,serif;color:var(--navy);font-size:32px;margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.07em;color:#526077}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:10px;padding:12px 13px;outline:none}.field textarea{min-height:140px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#9db6d7}.form-note{font-size:10px;color:var(--muted);margin-top:10px}
footer{background:#061226;color:#b9c6d8;padding:46px 0 28px}.footer-grid{display:grid;grid-template-columns:1.2fr .75fr 1fr;gap:45px}.footer-brand img{width:135px;margin-bottom:14px}.footer-brand p{font-size:12px;color:#8496ae;max-width:330px}.footer-title{color:#fff;font-size:12px;text-transform:uppercase;letter-spacing:.1em;font-weight:900;margin-bottom:12px}.footer-links{display:grid;gap:8px;font-size:12px}.footer-contact{font-size:12px;color:#9eb0c7}.footer-contact b{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.09);margin-top:30px;padding-top:20px;text-align:center;font-size:10px;color:#73869f}
.toast{position:fixed;right:20px;bottom:20px;z-index:100;background:#0b1a31;color:#fff;padding:12px 15px;border-radius:11px;font-size:11px;box-shadow:0 14px 34px rgba(0,0,0,.24);opacity:0;transform:translateY(10px);pointer-events:none;transition:.22s}.toast.show{opacity:1;transform:translateY(0)}
@media(max-width:1000px){.nav{display:none;position:absolute;top:78px;left:16px;right:16px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:18px;flex-direction:column;align-items:stretch}.nav.open{display:flex}.menu-btn{display:block}.hero-grid,.latest-grid,.qod,.page-hero-grid,.contact-grid{grid-template-columns:1fr}.hero-visual{min-height:500px}.hero-book.main{right:20%;}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.book-grid{grid-template-columns:repeat(2,1fr)}.exam-grid{grid-template-columns:repeat(2,1fr)}.resource-grid{grid-template-columns:repeat(2,1fr)}.free-panel{grid-template-columns:1fr}.author-home{grid-template-columns:240px 1fr}.study-path{grid-template-columns:repeat(2,1fr)}.all-resources{grid-template-columns:repeat(2,1fr)}.about-main{grid-template-columns:300px 1fr}.mini-books{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.page-hero-logo{margin:0;max-width:280px}}
@media(max-width:650px){.container{width:min(100% - 26px,1180px)}.announce{display:none}.brand{min-width:0}.brand img{width:47px;height:47px}.brand-copy b{font-size:13px}.brand-copy small{font-size:8px}.hero-grid{padding:45px 0 70px;min-height:auto}.hero h1{font-size:45px}.lead{font-size:15px}.hero-visual{min-height:410px}.hero-book.main{width:210px;right:18%;top:20px}.hero-book.b2{width:115px;left:0;top:70px}.hero-book.b3{width:105px;left:25px;bottom:10px}.hero-book.b4{width:110px;right:0;bottom:15px}.author-chip{bottom:135px;left:0}.stats{grid-template-columns:1fr 1fr}.stat{padding:18px}.stat strong{font-size:23px}.section{padding:68px 0}.section-head{align-items:start;flex-direction:column;gap:12px}.section-title{font-size:36px}.book-grid,.exam-grid,.resource-grid,.all-resources{grid-template-columns:1fr}.book-card .coverbox{height:420px}.feature-list,.answers,.checklist{grid-template-columns:1fr}.free-panel{padding:30px}.free-panel h2{font-size:34px}.author-home{grid-template-columns:1fr}.author-photo img{height:390px}.cta-grid{grid-template-columns:1fr}.detail-book{grid-template-columns:1fr}.detail-book .detail-cover{max-height:510px}.study-path{grid-template-columns:1fr}.about-main{grid-template-columns:1fr}.about-main .portrait{position:static}.mini-books{grid-template-columns:repeat(2,1fr)}.pyq-year{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:1}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.page-hero{padding:52px 0}}

/* Version 5: Vocabulary Library */
.resource-link{display:block;color:inherit;text-decoration:none;transition:.2s ease}.resource-link:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(7,26,53,.08);border-color:#c9d6e6}.resource-link b{display:block;margin-top:12px;color:var(--blue);font-size:11px}
.vocab-showcase{display:grid;grid-template-columns:285px 1fr;gap:42px;align-items:start}.vocab-book-side{position:sticky;top:110px}.vocab-book-side img{display:block;width:100%;max-height:390px;object-fit:contain;background:#f6f8fb;border:1px solid var(--line);border-radius:18px;padding:12px;margin:16px 0 18px;box-shadow:0 20px 44px rgba(7,26,53,.10)}.vocab-intro{color:var(--muted);max-width:780px}.vocab-feature-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}.vocab-feature-row span,.topic-chips span{font-size:10px;font-weight:800;color:var(--navy);background:#f1f5fa;border:1px solid #e1e8f1;padding:7px 10px;border-radius:999px}.vocab-download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.vocab-download-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:19px;display:flex;flex-direction:column;min-height:205px}.vocab-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.vocab-unit{font-size:9px;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:#8b6a18;background:#fff6d9;padding:4px 7px;border-radius:999px}.vocab-num{font-family:Georgia,serif;color:#ccd5e1;font-size:21px}.vocab-download-card h3{font-family:Georgia,serif;color:var(--navy);font-size:20px;margin:13px 0 7px}.vocab-download-card p{font-size:12px;color:var(--muted);margin:0 0 16px;flex:1}.vocab-download-card .small-btn{align-self:flex-start}.vocab-home{display:grid;grid-template-columns:250px 1fr;gap:42px;align-items:center;border:1px solid var(--line);border-radius:26px;padding:34px;background:linear-gradient(135deg,#fbfdff,#f4f8fd)}.vocab-home-cover img{width:100%;max-height:340px;object-fit:contain;filter:drop-shadow(0 18px 25px rgba(7,26,53,.18))}.vocab-home p{color:var(--muted)}.topic-chips{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0 22px}
@media(max-width:1000px){.vocab-showcase{grid-template-columns:1fr}.vocab-book-side{position:static;display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:center}.vocab-book-side img{margin:0}.vocab-home{grid-template-columns:200px 1fr}}
@media(max-width:650px){.vocab-download-grid{grid-template-columns:1fr}.vocab-book-side,.vocab-home{grid-template-columns:1fr}.vocab-book-side img,.vocab-home-cover img{max-width:260px;margin-inline:auto}.vocab-home{padding:24px}}


/* Version 6: Mastering NDA/NA English learning framework */
.resource-tile{position:relative;transition:.2s ease}.resource-live:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(7,26,53,.08);border-color:#c9d6e6}.resource-tile span{display:inline-flex;margin-top:10px;font-size:8px;font-weight:900;letter-spacing:.07em;text-transform:uppercase;padding:4px 6px;border-radius:999px;background:#edf7f1;color:#24704a}.resource-soon span{background:#fff5d7;color:#8c6a15}.nda-showcase{display:grid;grid-template-columns:285px 1fr;gap:42px;align-items:start}.nda-book-side{position:sticky;top:110px}.nda-book-side img{width:100%;max-height:390px;object-fit:contain;background:#f6f8fb;border:1px solid var(--line);border-radius:18px;padding:12px;margin:16px 0 18px;box-shadow:0 20px 44px rgba(7,26,53,.10)}.nda-intro{color:var(--muted);max-width:820px}.nda-download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.nda-download-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:19px;display:flex;flex-direction:column;min-height:205px}.nda-unit{font-size:9px;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:#0e4d88;background:#eaf3ff;padding:4px 7px;border-radius:999px}.nda-download-card h3{font-family:Georgia,serif;color:var(--navy);font-size:20px;margin:13px 0 7px}.nda-download-card p{font-size:12px;color:var(--muted);margin:0 0 16px;flex:1}.nda-download-card .small-btn{align-self:flex-start}.nda-home{display:grid;grid-template-columns:250px 1fr;gap:42px;align-items:center;border:1px solid var(--line);border-radius:26px;padding:34px;background:linear-gradient(135deg,#fbfdff,#f5f8fc)}.nda-home-cover img{width:100%;max-height:340px;object-fit:contain;filter:drop-shadow(0 18px 25px rgba(7,26,53,.18))}.nda-home p{color:var(--muted)}
@media(max-width:1000px){.nda-showcase{grid-template-columns:1fr}.nda-book-side{position:static;display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:center}.nda-book-side img{margin:0}.nda-home{grid-template-columns:200px 1fr}}
@media(max-width:650px){.nda-download-grid{grid-template-columns:1fr}.nda-book-side,.nda-home{grid-template-columns:1fr}.nda-book-side img,.nda-home-cover img{max-width:260px;margin-inline:auto}.nda-home{padding:24px}}

/* Version 7: 100 Golden Rules + stronger author presence */
.golden-section{background:linear-gradient(135deg,#fffdf5 0%,#fff 55%,#f5f8fc 100%)}
.golden-home{display:grid;grid-template-columns:360px 1fr;gap:54px;align-items:center;border:1px solid #ead8a9;border-radius:28px;padding:42px;background:linear-gradient(135deg,#fffef9,#ffffff);box-shadow:0 22px 60px rgba(88,62,8,.08)}
.golden-visual{display:flex;justify-content:center}.golden-preview-wrap{position:relative;border:1px solid #e6d4a8;border-radius:22px;background:#fff;padding:14px;box-shadow:0 24px 55px rgba(58,42,11,.14);overflow:hidden}.golden-preview-wrap img{display:block;width:100%;border-radius:13px}.golden-preview-wrap .golden-number{position:absolute;right:14px;top:14px;z-index:2;width:84px;height:84px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#071a35,#164b87);border:5px solid #e8bd5f;color:#fff;font:900 31px/1 Georgia,serif;box-shadow:0 10px 24px rgba(7,26,53,.25)}
.golden-copy p{color:var(--muted);font-size:15px;max-width:760px}.golden-copy b{color:var(--navy)}
.resource-gold{border-color:#e7d29d!important;background:linear-gradient(135deg,#fffdf4,#fff)!important}.resource-gold span{background:#fff1c9!important;color:#8a6111!important}
.golden-resource-section{background:linear-gradient(180deg,#fff 0%,#fffaf0 100%)}.golden-resource{display:grid;grid-template-columns:360px 1fr;gap:48px;align-items:center}.golden-resource-preview{display:flex;justify-content:center}.golden-preview-wrap.large{max-width:360px}.golden-resource-copy p{color:var(--muted);font-size:14px;line-height:1.8}.golden-rule-samples{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}.golden-rule-samples div{border:1px solid #eadfbe;background:#fff;border-radius:14px;padding:16px}.golden-rule-samples b{display:block;color:var(--navy);font-size:12px}.golden-rule-samples small{display:block;color:var(--muted);font-size:10px;margin-top:6px;line-height:1.55}
.author-feature-section{background:linear-gradient(135deg,#f7faff,#fff)}.author-home{grid-template-columns:380px 1fr;gap:58px;align-items:center}.author-photo{border:1px solid #dfe6ef}.author-photo img{height:500px;object-position:50% 12%}.author-copy h2{font-size:50px}.author-lead{font-size:18px;line-height:1.75;max-width:700px}.author-note{font-size:13px!important;line-height:1.75;max-width:700px}.author-chip{padding:9px 15px 9px 9px;gap:11px}.author-chip img{width:56px;height:56px}.author-chip b{font-size:13px}.author-chip small{font-size:10px}
.about-main{grid-template-columns:410px 1fr;gap:60px}.about-main .portrait img{height:545px;object-position:50% 13%}.prominent-portrait{background:#fff}.portrait-caption{padding:16px 18px;background:linear-gradient(135deg,#071a35,#0d2b55);color:#fff}.portrait-caption b{display:block;font-family:Georgia,serif;font-size:20px}.portrait-caption span{display:block;margin-top:3px;color:#d4dfed;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
@media(max-width:1000px){.golden-home,.golden-resource{grid-template-columns:270px 1fr;gap:32px}.author-home{grid-template-columns:300px 1fr}.author-photo img{height:430px}.about-main{grid-template-columns:340px 1fr}.about-main .portrait img{height:480px}.golden-rule-samples{grid-template-columns:1fr}}
@media(max-width:650px){.golden-home,.golden-resource{grid-template-columns:1fr;padding:24px}.golden-preview-wrap,.golden-preview-wrap.large{max-width:320px;margin-inline:auto}.golden-preview-wrap .golden-number{width:68px;height:68px;font-size:25px}.author-home{grid-template-columns:1fr}.author-photo{max-width:360px;margin-inline:auto}.author-photo img{height:460px}.author-copy h2{font-size:42px}.about-main{grid-template-columns:1fr}.about-main .portrait img{height:500px}}


/* Version 8: NDA/NA Question Bank + author portrait in opening hero */
.hero-author-card{position:absolute;left:-22px;bottom:128px;z-index:7;width:214px;background:#fff;border:1px solid #d8e1ec;border-radius:24px;box-shadow:0 24px 50px rgba(7,26,53,.22);overflow:hidden;transform:rotate(-1.5deg)}
.hero-author-card img{width:100%;height:250px;object-fit:cover;object-position:50% 13%}
.hero-author-caption{padding:10px 12px 11px;background:linear-gradient(135deg,#071a35,#123e74);color:#fff;text-align:center}
.hero-author-caption b{display:block;font:700 15px/1.1 Georgia,serif}.hero-author-caption span{display:block;margin-top:5px;font-size:8px;letter-spacing:.08em;text-transform:uppercase;color:#d9e5f3}
.hero-book.b2{left:128px;top:82px}.hero-book.b3{left:112px;bottom:18px}

.qb-home-section{background:linear-gradient(135deg,#071a35 0%,#0d2b55 60%,#123f79 100%);color:#fff;position:relative;overflow:hidden}.qb-home-section:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(240,198,111,.18);border-radius:50%;right:-150px;top:-190px}.qb-home{position:relative;z-index:2;display:grid;grid-template-columns:330px 1fr;gap:58px;align-items:center}.qb-book-frame{position:relative;padding:18px;border:1px solid rgba(255,255,255,.18);border-radius:24px;background:rgba(255,255,255,.07);box-shadow:0 30px 70px rgba(0,0,0,.22)}.qb-book-frame img{width:100%;max-height:420px;object-fit:contain;border-radius:8px;filter:drop-shadow(0 18px 28px rgba(0,0,0,.28))}.qb-badge{position:absolute;left:8px;top:8px;z-index:3;background:linear-gradient(135deg,#f0c66f,#c99b39);color:#18140b;padding:8px 11px;border-radius:999px;font-size:9px;font-weight:900;letter-spacing:.08em}.qb-home-copy .section-kicker{color:#f0c66f}.qb-home-copy .section-title{color:#fff;max-width:780px}.qb-home-copy p{color:#d8e4f2;font-size:15px;max-width:800px}.qb-home-copy p b{color:#fff}.qb-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:24px 0 18px;max-width:650px}.qb-metrics div{border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);border-radius:14px;padding:14px}.qb-metrics strong{display:block;color:#f2c86f;font:800 26px/1 Georgia,serif}.qb-metrics span{display:block;margin-top:5px;font-size:9px;text-transform:uppercase;letter-spacing:.07em;color:#d5e1ef}.qb-chips span{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15);color:#eef5ff}.qb-home-copy .btn-outline{background:transparent;border-color:#607da5;color:#fff}.qb-home-copy .btn-outline:hover{background:rgba(255,255,255,.06)}
.qb-resource-card{border-color:#d7bf83!important;background:linear-gradient(135deg,#fffaf0,#fff)!important}.qb-resource-card .num{color:#9a6b15!important}

.resource-qb{border-color:#dcc78f!important;background:linear-gradient(135deg,#fffaf0,#fff)!important}.resource-qb span{background:#fff0c6!important;color:#8a5d0f!important}
.question-bank-section{background:linear-gradient(180deg,#f7faff 0%,#fff 100%)}.question-bank-showcase{display:grid;grid-template-columns:300px 1fr;gap:46px;align-items:start}.question-bank-side{position:sticky;top:110px}.question-bank-side>img{width:100%;max-height:420px;object-fit:contain;background:#fff;border:1px solid #dce4ef;border-radius:20px;padding:12px;margin:16px 0;box-shadow:0 24px 48px rgba(7,26,53,.12)}.qb-side-note{border:1px solid #e6d5ab;background:#fffaf0;border-radius:14px;padding:14px;margin-bottom:14px}.qb-side-note b{display:block;color:var(--navy);font-family:Georgia,serif}.qb-side-note span{display:block;margin-top:4px;color:#80611a;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}.question-bank-intro{color:var(--muted);max-width:850px}.qb-feature-strip{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}.qb-feature-strip span{font-size:10px;font-weight:800;color:#6e4d08;background:#fff6dd;border:1px solid #ead6a4;padding:7px 10px;border-radius:999px}.qb-download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.qb-download-card{position:relative;border:1px solid var(--line);border-radius:17px;background:#fff;padding:19px;display:flex;flex-direction:column;min-height:220px;overflow:hidden;transition:.2s ease}.qb-download-card:after{content:"";position:absolute;width:68px;height:68px;border-radius:50%;right:-24px;top:-24px;background:rgba(201,155,57,.10)}.qb-download-card:hover{transform:translateY(-3px);border-color:#d9c184;box-shadow:0 14px 30px rgba(7,26,53,.08)}.qb-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.qb-unit{font-size:9px;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:#8a6111;background:#fff3d0;padding:4px 7px;border-radius:999px}.qb-index{font-family:Georgia,serif;color:#cdd6e2;font-size:22px}.qb-download-card h3{font-family:Georgia,serif;color:var(--navy);font-size:20px;margin:13px 0 7px}.qb-download-card p{font-size:12px;color:var(--muted);margin:0 0 16px;flex:1}.qb-download-card .small-btn{align-self:flex-start}.qb-card-foot{margin-top:10px;color:#8a6a21;font-size:8px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
@media(max-width:1000px){.hero-author-card{width:165px;left:-5px;bottom:138px}.hero-author-card img{height:190px}.hero-book.b2{left:105px}.hero-book.b3{left:92px}.qb-home{grid-template-columns:260px 1fr;gap:36px}.question-bank-showcase{grid-template-columns:240px 1fr}}
@media(max-width:650px){.hero-author-card{width:126px;left:0;bottom:124px;border-radius:15px}.hero-author-card img{height:148px}.hero-author-caption{padding:7px}.hero-author-caption b{font-size:11px}.hero-author-caption span{font-size:6px}.hero-book.b2{left:88px;top:70px}.hero-book.b3{left:70px;bottom:5px}.qb-home{grid-template-columns:1fr;gap:28px}.qb-home-cover{max-width:270px;margin-inline:auto}.qb-metrics{grid-template-columns:1fr 1fr}.question-bank-showcase{grid-template-columns:1fr}.question-bank-side{position:static;max-width:300px}.qb-download-grid{grid-template-columns:1fr}}

/* Version 9 — YouTube channel integration */
.btn-youtube{background:#ff0000;color:#fff;border-color:#ff0000;box-shadow:0 8px 20px rgba(255,0,0,.14)}
.btn-youtube:hover{background:#d90000;border-color:#d90000;transform:translateY(-1px)}
.btn-youtube-dark{background:#ff0000;color:#fff!important;border:1px solid #ff0000!important}
.btn-youtube-dark:hover{background:#d90000;border-color:#d90000!important}
.yt-icon{font-size:12px;line-height:1;display:inline-block;transform:translateY(-1px)}
.youtube-contact a{color:#ffdddd}
.footer-contact a[href*="youtube.com"]{color:#f0c66f;font-weight:700}

.roadmap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:1000px){.roadmap-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.roadmap-grid{grid-template-columns:1fr}}


.nda-vision-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:42px;align-items:center}.nda-vision-copy p{color:var(--muted)}
.vision-points{display:grid;gap:12px;margin-top:20px}.vision-points div{padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:#fff}.vision-points b{display:block;color:var(--navy);margin-bottom:4px}.vision-points span{font-size:13px;color:var(--muted)}
.nda-vision-visuals{display:grid;grid-template-columns:1fr 230px;gap:16px;align-items:end}.nda-vision-visuals figure{margin:0;position:relative;overflow:hidden;border-radius:24px;box-shadow:0 24px 60px rgba(7,26,53,.14);background:#fff}.nda-vision-visuals img{display:block;width:100%;height:100%;object-fit:cover}.vision-building{height:420px}.vision-parade{height:250px;transform:translateY(28px)}.nda-vision-visuals figcaption{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(7,26,53,.72);color:#fff;padding:10px 12px;border-radius:12px;font-size:12px;font-weight:700;backdrop-filter:blur(5px)}
.page-hero-scenes{display:grid;grid-template-columns:1fr;gap:14px;justify-items:end}.page-hero-scenes img{display:block;width:100%;border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow)}.page-hero-scenes .scene-building{max-width:380px;max-height:250px;object-fit:cover}.page-hero-scenes .scene-parade{max-width:300px;max-height:180px;object-fit:cover;margin-right:28px}

.hero-author-card{display:none}

@media(max-width:1000px){.nda-vision-grid{grid-template-columns:1fr}.nda-vision-visuals{grid-template-columns:1fr 1fr}.page-hero-scenes{justify-items:start}.page-hero-scenes .scene-building{max-width:100%}.page-hero-scenes .scene-parade{max-width:70%;margin-right:0}}
@media(max-width:650px){.nda-vision-visuals{grid-template-columns:1fr}.vision-building{height:270px}.vision-parade{height:210px;transform:none}.page-hero-scenes .scene-parade{max-width:100%}}


.book-showcase-clean{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 24px 60px rgba(7,26,53,.12)}
.book-main-panel{position:relative;background:linear-gradient(135deg,#fbfdff,#f3f7fc);border:1px solid #e1e8f1;border-radius:22px;padding:22px 22px 14px;text-align:center}
.hero-main-book{width:260px;max-width:100%;display:block;margin:0 auto;filter:drop-shadow(0 22px 34px rgba(7,26,53,.20))}
.hero-main-caption{margin-top:14px}.hero-main-caption b{display:block;color:var(--navy);font-size:18px}.hero-main-caption span{font-size:12px;color:var(--muted)}
.hero-support-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}.support-book-card{background:#fff;border:1px solid #e1e8f1;border-radius:18px;padding:14px;text-align:center}.support-book-card img{display:block;width:100%;max-height:180px;object-fit:contain;filter:drop-shadow(0 12px 20px rgba(7,26,53,.16));margin:0 auto 10px}.support-book-card span{font-size:11px;font-weight:800;color:var(--navy);letter-spacing:.04em}
.nda-gallery-three{display:grid;grid-template-columns:1.14fr 1fr 1fr;gap:16px;align-items:stretch}.gallery-card{margin:0;position:relative;overflow:hidden;border-radius:24px;box-shadow:0 24px 60px rgba(7,26,53,.14);min-height:220px}.gallery-card img{display:block;width:100%;height:100%;object-fit:cover}.gallery-card figcaption{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(7,26,53,.72);color:#fff;padding:10px 12px;border-radius:12px;font-size:12px;font-weight:700;backdrop-filter:blur(5px)}
.quiz-home-grid{display:grid;grid-template-columns:1fr 360px;gap:36px;align-items:center}.quiz-promo-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 18px 44px rgba(7,26,53,.10)}.quiz-promo-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.quiz-promo-card ul{margin:0;padding-left:18px;color:var(--muted);display:grid;gap:10px}
.quiz-summary-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.quiz-summary-strip div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;text-align:center}.quiz-summary-strip strong{display:block;font-size:24px;color:var(--navy)}.quiz-summary-strip span{font-size:12px;color:var(--muted)}
.quiz-workspace{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 18px 44px rgba(7,26,53,.08)}.quiz-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.quiz-score-box{margin-bottom:18px;padding:18px 20px;border-radius:18px;background:#f4f8ff;border:1px solid #d7e4f5}.quiz-score-box.hidden,.quiz-explainer.hidden{display:none}.score-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #d7e4f5;border-radius:999px;padding:8px 14px;color:var(--navy);font-weight:800;margin-bottom:8px}
.quiz-question-list{display:grid;gap:16px}.quiz-card{border:1px solid var(--line);border-radius:18px;padding:18px;background:#fcfdff}.quiz-card-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.quiz-type{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;background:#eef4fb;color:var(--navy);padding:5px 8px;border-radius:999px}.quiz-num{font-size:12px;color:var(--muted);font-weight:800}.quiz-card h3{font-size:18px;color:var(--navy);margin:0 0 14px}.quiz-options{display:grid;gap:10px}.quiz-option{display:flex;gap:10px;align-items:flex-start;border:1px solid #e1e8f1;border-radius:14px;padding:12px;background:#fff;cursor:pointer}.quiz-option input{margin-top:3px}.quiz-option.correct{border-color:#47a36c;background:#eefaf2}.quiz-option.wrong{border-color:#d46b6b;background:#fff1f1}.quiz-explainer{margin-top:12px;padding:12px 14px;border-radius:14px;background:#f7f9fc;border:1px dashed #ccd8e6;font-size:13px;color:var(--muted)}
.nav a.active,.nav a:hover{color:var(--navy)}

.book-stage,.hero-book,.hero-author-card{display:none !important}

@media(max-width:1000px){.hero-grid{grid-template-columns:1fr}.hero-visual{min-height:auto}.quiz-home-grid{grid-template-columns:1fr}.quiz-summary-strip{grid-template-columns:repeat(2,1fr)}.quiz-toolbar{flex-direction:column;align-items:flex-start}.nda-gallery-three{grid-template-columns:1fr 1fr}.nda-gallery-three .building{grid-column:1/-1}.hero-support-row{grid-template-columns:repeat(3,1fr)}}
@media(max-width:650px){.hero-main-book{width:210px}.hero-support-row,.quiz-summary-strip,.nda-gallery-three{grid-template-columns:1fr}.quiz-workspace{padding:18px}.quiz-card h3{font-size:16px}.support-book-card img{max-height:140px}}


.hero-mockup-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch}.hero-featured-book{position:relative;background:linear-gradient(180deg,#ffffff,#f7fbff);border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:0 28px 60px rgba(7,26,53,.12);display:flex;flex-direction:column;justify-content:center;align-items:center}.hero-featured-book img{display:block;width:min(310px,100%);filter:drop-shadow(0 26px 34px rgba(7,26,53,.18))}.featured-caption{margin-top:16px;text-align:center}.featured-caption b{display:block;font-size:18px;color:var(--navy);margin-bottom:4px}.featured-caption small{display:block;color:var(--muted);font-size:12px;line-height:1.45}.hero-book-column{display:grid;grid-template-rows:repeat(3,1fr);gap:14px}.hero-mini-book{background:#fff;border:1px solid var(--line);border-radius:22px;padding:14px;box-shadow:0 18px 36px rgba(7,26,53,.10);display:grid;grid-template-columns:92px 1fr;gap:14px;align-items:center}.hero-mini-book img{width:92px;height:128px;object-fit:contain;filter:drop-shadow(0 12px 16px rgba(7,26,53,.12))}.hero-mini-book span{font-weight:800;color:var(--navy);font-size:14px;line-height:1.35}
.quiz-flash-label,.nav-flash-badge,.quiz-flash-btn,.quiz-promo-flash{animation:flashPulse 1.2s infinite alternate}.quiz-flash-label{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff0c8;color:#7a5500;font-weight:900;letter-spacing:.08em;box-shadow:0 0 0 rgba(201,155,57,0)}.quiz-flash-btn{box-shadow:0 0 0 rgba(10,36,83,0)}.quiz-promo-flash{border:2px solid var(--gold)}.nav-flash-badge{display:inline-flex;align-items:center;justify-content:center;margin-left:6px;padding:2px 7px;border-radius:999px;background:#f44336;color:#fff;font-size:9px;font-weight:900;vertical-align:middle;line-height:1}.quiz-nav-link{white-space:nowrap}
@keyframes flashPulse{0%{opacity:1;transform:scale(1);box-shadow:0 0 0 rgba(201,155,57,0)}100%{opacity:.72;transform:scale(1.03);box-shadow:0 0 20px rgba(201,155,57,.28)}}
.quiz-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(90deg,#0a2453,#204b94);color:#fff;border-radius:14px;padding:12px 16px;margin:10px 0 4px;font-weight:800}.quiz-section-head small{font-size:12px;color:#d8e3f8}

.book-stage,.hero-book{display:none !important}.hero-visual{min-height:auto}.hero-grid{align-items:center}

@media(max-width:1000px){.hero-mockup-wrap{grid-template-columns:1fr}.hero-book-column{grid-template-columns:repeat(3,1fr);grid-template-rows:none}.hero-mini-book{grid-template-columns:1fr;justify-items:center;text-align:center}.hero-mini-book img{height:120px}}
@media(max-width:650px){.hero-featured-book{padding:18px}.hero-featured-book img{width:min(230px,100%)}.hero-book-column{grid-template-columns:1fr}.hero-mini-book{grid-template-columns:78px 1fr;text-align:left;justify-items:stretch}.hero-mini-book img{width:78px;height:112px}.quiz-flash-label{font-size:10px}}


/* Version 15: military background refinement */
body{background:linear-gradient(180deg,#f8fbff,#f5f8fc)}
.site-header{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.hero{isolation:isolate;background:linear-gradient(180deg,rgba(251,253,255,.98),rgba(242,247,253,.96))}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(251,253,255,.96) 0%,rgba(251,253,255,.84) 42%,rgba(251,253,255,.72) 100%),url('../images/nda-building-home.jpg');background-size:cover, 58%;background-position:center, right 32px bottom 10px;background-repeat:no-repeat;opacity:.95;z-index:-2}
.hero:after{content:"";position:absolute;left:0;bottom:0;width:44%;height:62%;background:linear-gradient(90deg,rgba(11,25,48,.03),rgba(11,25,48,0) 75%), url('../images/nda-parade-dark.jpg');background-size:cover;background-position:center bottom;clip-path:polygon(0 24%,100% 0,100% 100%,0 100%);opacity:.13;border-top-right-radius:80px;z-index:-1}
.hero-grid,.page-hero-grid{position:relative;z-index:2}
.stats-wrap{position:relative;z-index:2}
.section-soft{position:relative;overflow:hidden;background:linear-gradient(180deg,#f5f8fc,#eef4fb)}
.section-soft:before{content:"";position:absolute;inset:0;background-image:linear-gradient(180deg,rgba(245,248,252,.93),rgba(238,244,251,.93)),url('../images/nda-parade-white.jpg');background-size:cover, 48%;background-position:center, left -80px bottom 0;background-repeat:no-repeat;opacity:1;pointer-events:none}
.section-soft > .container,.section-soft .container{position:relative;z-index:2}
.page-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f8fbfe,#eef4fb)}
.page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(248,251,254,.97),rgba(241,246,252,.92)),url('../images/nda-building-clean.jpg');background-size:cover, 52%;background-position:center, right 20px bottom 0;background-repeat:no-repeat;opacity:1;z-index:0}
.page-hero:after{content:"";position:absolute;left:0;bottom:0;width:34%;height:58%;background:url('../images/nda-parade-dark.jpg') center/cover no-repeat;opacity:.08;clip-path:polygon(0 20%,100% 0,100% 100%,0 100%);z-index:0}
.stats,.book-card,.resource-card,.quiz-promo-card,.quiz-workspace,.hero-featured-book,.hero-mini-book,.gallery-card,.question-bank-panel,.gram-card,.exam-card{box-shadow:0 18px 44px rgba(7,26,53,.10)}
.announce{background:linear-gradient(90deg,#071a35,#0e2d5c 45%,#123e74)}
.btn-primary{background:linear-gradient(135deg,#071a35,#123e74)}
.btn-gold{box-shadow:0 14px 28px rgba(201,155,57,.22)}
.nav a.active,.nav a:hover{position:relative}
.nav a.active:after,.nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold2))}
@media(max-width:1100px){
  .hero:before{background-size:cover,64%;background-position:center,right -20px bottom 6px}
  .hero:after{width:38%;height:46%;opacity:.10}
  .page-hero:before{background-size:cover,64%;background-position:center,right -40px bottom 0}
}
@media(max-width:800px){
  .hero:before{background-image:linear-gradient(180deg,rgba(251,253,255,.98),rgba(242,247,253,.95)),url('../images/nda-building-home.jpg');background-size:cover,cover;background-position:center,center top;opacity:1}
  .hero:after{display:none}
  .section-soft:before{background-size:cover,78%;background-position:center,center bottom;opacity:1}
  .page-hero:before{background-image:linear-gradient(180deg,rgba(248,251,254,.97),rgba(241,246,252,.95)),url('../images/nda-building-clean.jpg');background-size:cover,cover;background-position:center,center top}
  .page-hero:after{display:none}
}


/* Version 16: clean hero photos + NDA Vault */
.hero,.page-hero,.section-soft{background:linear-gradient(180deg,#fbfdff,#f4f8fe) !important}
.hero:before,.hero:after,.page-hero:before,.page-hero:after,.section-soft:before{display:none !important}
.hero-photo-showcase{display:grid;grid-template-rows:1fr 1fr;gap:18px;align-items:stretch}
.hero-photo-card{position:relative;overflow:hidden;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:0 26px 60px rgba(7,26,53,.14)}
.hero-photo-card img{display:block;width:100%;height:100%;object-fit:cover;min-height:230px}
.hero-photo-building img{min-height:260px}
.hero-photo-parade img{min-height:240px}
.hero-photo-card figcaption{position:absolute;left:16px;right:16px;bottom:16px;padding:14px 16px;border-radius:16px;background:rgba(7,26,53,.72);backdrop-filter:blur(6px);color:#fff}
.hero-photo-card figcaption b{display:block;font-size:18px;margin-bottom:3px}
.hero-photo-card figcaption span{font-size:12px;color:#dde7f6;font-weight:600}
.hero-visual{min-height:auto}
.pyq-quiz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.pyq-quiz-card{display:grid;grid-template-columns:72px 1fr;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 18px 36px rgba(7,26,53,.08)}
.pyq-quiz-no{width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1b1a16;font-size:18px;font-weight:900;box-shadow:0 10px 22px rgba(201,155,57,.24)}
.pyq-quiz-body h3{margin:0 0 8px;font-size:20px;color:var(--navy);font-family:Georgia,"Times New Roman",serif}.pyq-quiz-body p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.pyq-quiz-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.quiz-summary-strip div strong{font-size:22px}
.nav a.active:after,.nav a:hover:after{display:none !important}
@media(max-width:1000px){.pyq-quiz-grid{grid-template-columns:1fr}.hero-photo-showcase{grid-template-rows:none;grid-template-columns:1fr}.hero-photo-building img,.hero-photo-parade img{min-height:220px}}
@media(max-width:650px){.hero-photo-card figcaption b{font-size:16px}.pyq-quiz-card{grid-template-columns:58px 1fr;padding:16px}.pyq-quiz-no{width:46px;height:46px;font-size:15px}}


/* Version 17: premium slideshow, academy landing, timed quiz */
.hero{background:radial-gradient(circle at 84% 20%,rgba(23,86,160,.18),transparent 28%),linear-gradient(180deg,#f7fbff,#edf4fc) !important}
.hero-grid{min-height:710px;gap:62px}.hero .lead{max-width:610px}
.premium-hero-slider{position:relative;overflow:hidden;border-radius:32px;border:1px solid rgba(9,39,86,.10);box-shadow:0 32px 80px rgba(7,26,53,.18);background:#0b2448;min-height:560px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s ease, transform .6s ease;transform:scale(1.03)}
.hero-slide.active{opacity:1;visibility:visible;transform:scale(1)}
.hero-slide img{display:block;width:100%;height:100%;object-fit:cover;min-height:560px}
.hero-slide:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,16,34,.18),rgba(4,16,34,.60) 68%,rgba(4,16,34,.78))}
.hero-slide-overlay{position:absolute;left:24px;right:24px;bottom:78px;z-index:2;color:#fff}
.slide-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);backdrop-filter:blur(10px);padding:9px 14px;border-radius:999px;font-size:10px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px;border:1px solid rgba(255,255,255,.18)}
.hero-slide-overlay h3{margin:0 0 10px;font-size:34px;line-height:1.05;font-family:Georgia,"Times New Roman",serif;letter-spacing:-.03em}
.hero-slide-overlay p{margin:0;max-width:460px;color:#dce7f8;font-size:14px;line-height:1.65}
.hero-slider-topline{position:absolute;top:18px;left:18px;right:18px;z-index:3;display:flex;flex-wrap:wrap;gap:10px}.hero-slider-topline span{display:inline-flex;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--navy);font-size:11px;font-weight:900;letter-spacing:.05em;box-shadow:0 10px 18px rgba(7,26,53,.10)}
.hero-slider-controls{position:absolute;left:18px;right:18px;bottom:18px;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:12px}.hero-slider-dots{display:flex;align-items:center;gap:8px}.hero-slider-dots button{width:12px;height:12px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer}.hero-slider-dots button.active{background:var(--gold);box-shadow:0 0 0 4px rgba(201,155,57,.16)}
.hero-arrow{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.14);backdrop-filter:blur(10px);color:#fff;font-size:24px;font-weight:700;cursor:pointer}.hero-arrow:hover{background:rgba(255,255,255,.22)}
.hero-slider-note{position:absolute;right:18px;top:18px;z-index:3;max-width:220px;padding:16px 18px;border-radius:18px;background:rgba(4,16,34,.46);backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.14)}.hero-slider-note strong{display:block;font-size:14px;margin-bottom:4px}.hero-slider-note span{font-size:11px;color:#d6e2f6;line-height:1.5}
.stats{border:1px solid rgba(9,39,86,.08);box-shadow:0 18px 40px rgba(7,26,53,.08)}.stat strong{color:var(--blue)}
.section-kicker,.eyebrow{font-weight:900}
.quick-paper-bar{padding-top:0}.paper-chip-wrap{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 20px;box-shadow:0 18px 36px rgba(7,26,53,.07)}.paper-chip-label{font-size:12px;font-weight:900;color:var(--navy);letter-spacing:.07em;text-transform:uppercase;margin-right:4px}.paper-chip{display:inline-flex;padding:10px 14px;border-radius:999px;background:#eef4fb;color:var(--navy);font-size:12px;font-weight:800}.paper-chip:hover{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1b1a16}
.pyq-quiz-card.active-paper{border-color:rgba(201,155,57,.75);box-shadow:0 22px 48px rgba(201,155,57,.20), 0 18px 36px rgba(7,26,53,.08);transform:translateY(-3px)}.pyq-quiz-card{transition:.2s transform, .2s box-shadow, .2s border-color}
.academy-quiz-workspace{border:1px solid rgba(9,39,86,.08);box-shadow:0 22px 56px rgba(7,26,53,.10)}
.quiz-mode-copy{margin:8px 0 0;color:var(--muted);font-size:14px}.quiz-command-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:14px 0 24px}.timer-panel,.quiz-mode-panel,.timer-button-group{background:#f8fbff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;min-height:108px;display:flex;flex-direction:column;justify-content:center}.timer-label{font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}.timer-panel strong,.quiz-mode-panel strong{font-size:34px;line-height:1;color:var(--navy);font-family:Georgia,"Times New Roman",serif}.quiz-mode-panel strong{font-size:22px}.timer-panel small,.quiz-mode-panel small{margin-top:8px;color:var(--muted);line-height:1.5}.timer-button-group{display:flex;flex-direction:column;gap:10px;justify-content:center}
.quiz-score-box{padding:22px;border-radius:24px;background:linear-gradient(180deg,#fbfdff,#f4f8ff);border:1px solid var(--line);box-shadow:0 18px 36px rgba(7,26,53,.08)}.score-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:18px}.score-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 12px;text-align:center}.score-card b{display:block;font-size:24px;color:var(--navy);font-family:Georgia,"Times New Roman",serif;margin-bottom:3px}.score-card span{display:block;font-size:12px;font-weight:700;color:var(--muted)}.score-headline{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:16px}.score-title{margin:0}.score-title h3{margin:0 0 6px;font-size:28px;color:var(--navy);font-family:Georgia,"Times New Roman",serif}.score-title p{margin:0;color:var(--muted)}.score-badge{padding:12px 16px;border-radius:18px;background:linear-gradient(135deg,var(--gold),var(--gold2));font-weight:900;color:#1b1a16;box-shadow:0 10px 24px rgba(201,155,57,.24)}.section-score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:12px}.section-score{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}.section-score strong{display:block;color:var(--navy);margin-bottom:8px}.mini-progress{height:10px;border-radius:999px;background:#ebf1f7;overflow:hidden}.mini-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--gold))}.section-score small{display:block;margin-top:8px;color:var(--muted)}
.quiz-card{border:1px solid rgba(9,39,86,.08);box-shadow:0 10px 24px rgba(7,26,53,.05)}
@media(max-width:1200px){.score-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr}.premium-hero-slider{min-height:500px}.hero-slide img{min-height:500px}.hero-slide-overlay h3{font-size:30px}.quiz-command-strip{grid-template-columns:1fr}.score-grid{grid-template-columns:repeat(3,1fr)}.section-score-grid{grid-template-columns:1fr}.hero-slider-note{max-width:190px}}
@media(max-width:650px){.premium-hero-slider{min-height:420px}.hero-slide img{min-height:420px}.hero-slide-overlay{left:16px;right:16px;bottom:74px}.hero-slide-overlay h3{font-size:25px}.hero-slide-overlay p{font-size:13px}.hero-slider-topline{top:14px;left:14px;right:14px;gap:8px}.hero-slider-topline span{padding:7px 10px;font-size:10px}.hero-slider-note{display:none}.hero-slider-controls{left:14px;right:14px}.hero-arrow{width:38px;height:38px;font-size:22px}.paper-chip-wrap{padding:16px}.score-grid{grid-template-columns:repeat(2,1fr)}.score-headline{flex-direction:column}.timer-panel strong{font-size:30px}.quiz-mode-panel strong{font-size:18px}}

/* Version 18: Student Hub, daily quiz, local leaderboard, OMR, year-wise PYQ pages */
.hidden{display:none!important}
.student-nav-link{font-weight:900;color:var(--blue)!important}
.student-hub-home{background:linear-gradient(135deg,#071a35,#123e74);color:#fff}
.student-hub-home .section-kicker,.student-hub-home .section-title{color:#fff}.student-hub-home p{color:#dbe7f7;max-width:680px}
.student-hub-home-grid{display:grid;grid-template-columns:1fr .9fr;gap:42px;align-items:center}.hub-preview-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.hub-preview{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:22px;backdrop-filter:blur(8px)}.hub-preview strong{display:block;font:700 30px/1 Georgia,"Times New Roman",serif;color:var(--gold2);margin-bottom:8px}.hub-preview span{font-size:13px;color:#dbe7f7}
.footer-disclaimer{display:inline-block;margin-top:6px;font-size:10px;color:#95a5ba;line-height:1.5}
.quiz-layout-shell{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:22px;align-items:start}.omr-panel{position:sticky;top:108px;background:linear-gradient(180deg,#071a35,#123e74);color:#fff;border-radius:22px;padding:18px;box-shadow:0 24px 50px rgba(7,26,53,.18)}.omr-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:14px}.omr-head strong{display:block;font-size:22px;font-family:Georgia,"Times New Roman",serif}.omr-head>span{font-size:11px;color:#d4e1f3;font-weight:800;margin-top:4px}.omr-panel .timer-label{color:#f0c85d}.omr-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.omr-q{aspect-ratio:1;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:50%;font-size:11px;font-weight:900;cursor:pointer;transition:.18s}.omr-q:hover,.omr-q.current{background:var(--gold);color:#1b1a16;transform:scale(1.08)}.omr-q.answered{background:#2f75c8;border-color:#72a7e1}.omr-q.correct{background:#3d9a66;border-color:#77c897}.omr-q.wrong{background:#c55151;border-color:#e38c8c}.omr-q.unattempted{background:#6f7c8e}.omr-legend{display:grid;gap:7px;margin:15px 0 12px;font-size:10px;color:#d4e1f3}.omr-legend span{display:flex;align-items:center;gap:7px}.omr-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#6f7c8e}.omr-dot.answered{background:#2f75c8}.omr-dot.current{background:var(--gold)}.omr-dot.wrong{background:#c55151}.omr-dashboard-btn{width:100%;margin-top:8px;color:#fff;border-color:rgba(255,255,255,.32);background:rgba(255,255,255,.08)}.result-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.dashboard-hero-badge{justify-self:end;background:#fff;border:1px solid var(--line);border-radius:28px;padding:28px;text-align:center;box-shadow:0 24px 54px rgba(7,26,53,.12);min-width:260px}.dashboard-hero-badge img{width:110px;margin:0 auto 16px}.dashboard-hero-badge strong{display:block;font:700 26px/1.1 Georgia,"Times New Roman",serif;color:var(--navy)}.dashboard-hero-badge span{display:block;margin-top:8px;color:var(--muted);font-size:12px;font-weight:800;letter-spacing:.06em}
.student-login-panel{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:0 22px 50px rgba(7,26,53,.09)}.student-login-panel p{color:var(--muted)}.student-profile-form{display:grid;gap:14px;background:#f7faff;border:1px solid var(--line);border-radius:22px;padding:22px}.student-profile-form .field{display:grid;gap:6px}.student-profile-form label{font-size:11px;font-weight:900;color:var(--navy);letter-spacing:.06em;text-transform:uppercase}.student-profile-form input,.student-profile-form select{width:100%;padding:13px 14px;border:1px solid #cfd9e6;border-radius:12px;background:#fff;color:var(--ink)}
.dashboard-welcome{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.dashboard-welcome p{margin:6px 0 0;color:var(--muted)}.dashboard-stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:26px}.dashboard-stat{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;text-align:center;box-shadow:0 14px 30px rgba(7,26,53,.06)}.dashboard-stat strong{display:block;font:700 30px/1 Georgia,"Times New Roman",serif;color:var(--navy);margin-bottom:7px}.dashboard-stat span{font-size:11px;color:var(--muted);font-weight:800}.dashboard-two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}.dashboard-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 18px 38px rgba(7,26,53,.07)}.dashboard-card h3{margin:8px 0 18px;color:var(--navy);font-size:22px}.attempt-table,.leaderboard-table{display:grid;gap:8px}.attempt-row{display:grid;grid-template-columns:1.5fr .55fr .55fr .65fr;gap:10px;align-items:center;padding:12px 13px;border:1px solid var(--line);border-radius:13px;background:#fbfdff;font-size:12px}.attempt-row div b{display:block;color:var(--navy)}.attempt-row div span{display:block;color:var(--muted);font-size:10px}.attempt-row>strong{color:var(--blue)}.leader-row{display:grid;grid-template-columns:32px 1fr 55px 65px;gap:9px;align-items:center;padding:11px 12px;border:1px solid var(--line);border-radius:13px;background:#fbfdff;font-size:12px}.leader-row.me{border-color:#e4c263;background:#fff9e6}.rank-no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#edf3fa;color:var(--navy);font-weight:900}.leader-row b{display:block;color:var(--navy)}.leader-row small{display:block;color:var(--muted)}.empty-state{padding:18px;border:1px dashed #cbd8e6;border-radius:14px;color:var(--muted);font-size:13px}.year-links-card{margin-top:20px}.year-hub-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.year-hub-links a{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(135deg,#071a35,#123e74);color:#fff;border-radius:18px;padding:20px}.year-hub-links strong{font:700 30px/1 Georgia,"Times New Roman",serif}.year-hub-links span{font-size:11px;color:#d9e5f5;font-weight:800}
.year-paper-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.year-paper-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;box-shadow:0 20px 46px rgba(7,26,53,.08)}.year-paper-tag{display:inline-flex;padding:7px 10px;border-radius:999px;background:#fff2c7;color:#6d520d;font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.year-paper-card h2{font:700 32px/1.1 Georgia,"Times New Roman",serif;color:var(--navy);margin:14px 0 10px}.year-paper-card p{color:var(--muted)}
@media(max-width:1100px){.quiz-layout-shell{grid-template-columns:1fr}.omr-panel{position:static}.omr-grid{grid-template-columns:repeat(10,1fr)}.student-hub-home-grid,.student-login-panel,.dashboard-two-col{grid-template-columns:1fr}.dashboard-stat-grid{grid-template-columns:repeat(3,1fr)}.dashboard-hero-badge{justify-self:start}.year-paper-grid{grid-template-columns:1fr}}
@media(max-width:700px){.hub-preview-cards{grid-template-columns:1fr 1fr}.dashboard-stat-grid{grid-template-columns:repeat(2,1fr)}.attempt-row{grid-template-columns:1fr 60px}.attempt-row>span{display:none}.leader-row{grid-template-columns:30px 1fr 48px}.leader-row>span:last-child{display:none}.year-hub-links{grid-template-columns:1fr}.omr-grid{grid-template-columns:repeat(5,1fr)}.student-login-panel{padding:22px}.dashboard-welcome{align-items:flex-start;flex-direction:column}.year-paper-card{padding:22px}}
@media print{.site-header,.announce,footer,.omr-panel,.quiz-toolbar,.page-hero,.quick-paper-bar,.pyq-quiz-series,.topic-chips{display:none!important}.quiz-workspace{box-shadow:none;border:0;padding:0}.quiz-card{break-inside:avoid}.quiz-score-box{display:block!important}}


/* Version 19: two source-grounded quiz series */
.quiz-source-proof{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.quiz-source-proof span{display:inline-flex;padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:11px;font-weight:900;color:var(--navy)}
.quiz-type-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.quiz-type-card{border:1px solid var(--line);background:#fff;border-radius:26px;padding:26px;text-align:left;display:grid;grid-template-columns:68px 1fr;gap:18px;cursor:pointer;box-shadow:0 18px 42px rgba(7,26,53,.08);transition:.2s}.quiz-type-card:hover,.quiz-type-card.active{transform:translateY(-4px);border-color:rgba(201,155,57,.8);box-shadow:0 24px 56px rgba(7,26,53,.12),0 0 0 3px rgba(201,155,57,.08)}.quiz-type-number{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;display:grid;place-items:center;font-weight:900;font-size:18px}.quiz-type-card small{color:var(--blue);font-size:9px;font-weight:900;letter-spacing:.13em}.quiz-type-card h3{font-family:Georgia,"Times New Roman",serif;color:var(--navy);font-size:26px;margin:6px 0 10px}.quiz-type-card p{color:var(--muted);font-size:13px;margin:0}.quiz-type-stats{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.quiz-type-stats span{background:#f2f6fb;border:1px solid #e2e9f1;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:800;color:var(--navy)}
.daily-recommendation{display:flex;align-items:center;justify-content:space-between;gap:30px;background:linear-gradient(135deg,#071a35,#123e74);border-radius:26px;padding:28px 30px;color:#fff;box-shadow:0 22px 50px rgba(7,26,53,.18)}.daily-recommendation .section-kicker{color:#ffd878}.daily-recommendation h2{font-family:Georgia,"Times New Roman",serif;font-size:34px;margin:6px 0}.daily-recommendation p{margin:0;color:#d8e5f7}
.set-selector-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.series-set-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;text-align:left;display:grid;grid-template-columns:48px 1fr auto;gap:14px;align-items:center;cursor:pointer;box-shadow:0 12px 30px rgba(7,26,53,.06);transition:.2s}.series-set-card:hover{transform:translateY(-3px);border-color:rgba(201,155,57,.7);box-shadow:0 20px 42px rgba(7,26,53,.10)}.series-set-no{width:44px;height:44px;border-radius:50%;background:#eef4fb;color:var(--navy);display:grid;place-items:center;font-weight:900}.series-set-card small{font-size:8px;letter-spacing:.12em;font-weight:900;color:var(--blue)}.series-set-card h3{font-size:16px;color:var(--navy);margin:3px 0}.series-set-card p{font-size:10px;color:var(--muted);margin:0}.series-go{font-size:11px;font-weight:900;color:#8a6509}.source-quiz-workspace{border:1px solid rgba(9,39,86,.08)}.source-context{margin:0 0 15px;background:#f3f7fc;border:1px solid #dce6f2;border-radius:14px;padding:10px 13px}.source-context summary{cursor:pointer;font-size:11px;font-weight:900;color:var(--blue);letter-spacing:.06em;text-transform:uppercase}.source-context p{font-size:13px;color:#43536b;line-height:1.65;margin:10px 0 2px}.quiz-empty-state{padding:50px 20px;border:1px dashed #ccd8e6;border-radius:18px;text-align:center;background:#fbfdff}.quiz-empty-state strong{display:block;color:var(--navy);font-size:20px;margin-bottom:6px}.quiz-empty-state span{color:var(--muted)}
@media(max-width:1050px){.set-selector-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.quiz-type-grid,.set-selector-grid{grid-template-columns:1fr}.daily-recommendation{align-items:flex-start;flex-direction:column}.quiz-type-card{grid-template-columns:54px 1fr}.quiz-type-card h3{font-size:22px}.series-set-card{grid-template-columns:44px 1fr}.series-go{grid-column:2}.quiz-command-hero .page-hero-grid{grid-template-columns:1fr}}

/* Version 20: verified Practice Book sample-paper quizzes */
.sample-source-banner{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:26px 28px;border-radius:24px;background:linear-gradient(135deg,#071a35,#123e74);color:#fff;box-shadow:0 22px 54px rgba(7,26,53,.18)}.sample-source-banner h2{margin:4px 0 8px;font-size:28px;font-family:Georgia,"Times New Roman",serif}.sample-source-banner p{margin:0;color:#dce6f5;max-width:760px;line-height:1.65}.sample-source-banner .section-kicker{color:#f1c85a}.sample-source-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.sample-source-stats span{min-width:112px;padding:14px 12px;border:1px solid rgba(255,255,255,.18);border-radius:16px;background:rgba(255,255,255,.08);text-align:center;font-size:11px;font-weight:800}.sample-source-stats b{display:block;font-size:24px;color:#f1c85a;margin-bottom:3px}@media(max-width:900px){.sample-source-banner{grid-template-columns:1fr}.sample-source-stats{grid-template-columns:repeat(3,1fr)}}@media(max-width:600px){.sample-source-stats{grid-template-columns:1fr}.sample-source-banner h2{font-size:23px}}


/* Home page quiz gateways */
.home-quiz-gateways{padding-top:26px}
.gateway-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.gateway-card{display:block;text-decoration:none;background:linear-gradient(135deg,#fff 0%,#f5f8fc 100%);border:1px solid rgba(9,39,84,.12);border-radius:28px;padding:28px 26px;box-shadow:0 18px 40px rgba(8,31,74,.08);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;color:#0a244a;position:relative;overflow:hidden}
.gateway-card:hover{transform:translateY(-6px);box-shadow:0 24px 48px rgba(8,31,74,.14);border-color:rgba(184,134,11,.35)}
.gateway-card:before{content:"";position:absolute;inset:auto -20% -45% auto;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle at center, rgba(184,134,11,.12), rgba(184,134,11,0));pointer-events:none}
.gateway-pyq{background:linear-gradient(135deg,#ffffff 0%,#eef4ff 100%)}
.gateway-sample{background:linear-gradient(135deg,#fffdf6 0%,#fff5dd 100%)}
.gateway-badge{display:inline-block;padding:8px 12px;border-radius:999px;background:#0a244a;color:#fff;font-size:12px;letter-spacing:.11em;font-weight:800;margin-bottom:14px}
.gateway-card h3{margin:0 0 10px;font-size:32px;line-height:1.1;color:#0a244a}
.gateway-card p{margin:0 0 18px;color:#4d607c;font-size:17px;line-height:1.7;max-width:58ch}
.gateway-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.gateway-points span{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(10,36,74,.08);color:#0a244a;font-weight:700;font-size:13px}
.gateway-sample .gateway-points span{background:rgba(184,134,11,.14)}
.gateway-cta{display:inline-flex;align-items:center;gap:8px;font-size:16px;color:#b8860b}
@media (max-width: 900px){.gateway-grid{grid-template-columns:1fr}.gateway-card h3{font-size:28px}}

/* Version 22: Student Hub preparation shortcuts */
.preparation-shortcuts-card{margin-top:24px}
.shortcut-intro{margin:6px 0 18px;color:var(--muted)}
.hub-shortcut-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.hub-shortcut{display:grid;grid-template-columns:52px 1fr auto;gap:13px;align-items:center;text-decoration:none;background:linear-gradient(135deg,#fff,#f7faff);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:0 12px 28px rgba(7,26,53,.06);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:var(--navy)}
.hub-shortcut:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(7,26,53,.10);border-color:rgba(201,155,57,.45)}
.hub-shortcut-icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#0a2453,#1f58a2);color:#fff;font-size:12px;font-weight:900;letter-spacing:.06em;box-shadow:0 8px 20px rgba(10,36,83,.16)}
.hub-shortcut b{display:block;font-size:15px;margin-bottom:3px}.hub-shortcut small{display:block;color:var(--muted);line-height:1.45;font-size:11px}.hub-shortcut>strong{font-size:11px;color:var(--gold);white-space:nowrap}.quiz-shortcut{background:linear-gradient(135deg,#f7fbff,#eaf3ff)}.vault-shortcut{background:linear-gradient(135deg,#fffdf8,#fff5d9)}
@media(max-width:1050px){.hub-shortcut-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.hub-shortcut-grid{grid-template-columns:1fr}.hub-shortcut{grid-template-columns:46px 1fr auto;padding:14px}.hub-shortcut-icon{width:42px;height:42px}}


/* Version 23: streamlined navigation, merged hub, homepage About/Contact, registration */
.vertical-quick-nav{position:fixed;right:12px;top:38%;z-index:90;display:flex;flex-direction:column;gap:7px;padding:10px 8px;border:1px solid rgba(9,39,84,.12);border-radius:18px;background:rgba(255,255,255,.94);box-shadow:0 16px 34px rgba(7,26,53,.12);backdrop-filter:blur(8px)}
.vertical-nav-title{font-size:8px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:#72829a;text-align:center;padding:2px 0 5px}
.vertical-link{display:flex;align-items:center;gap:8px;min-width:38px;color:var(--navy);padding:7px;border-radius:11px;text-decoration:none;transition:.2s}.vertical-link b{width:27px;height:27px;display:grid;place-items:center;border-radius:9px;background:#eef4fb;font-size:10px;letter-spacing:.04em}.vertical-link span{display:none;font-size:11px;font-weight:800;white-space:nowrap}.vertical-link:hover,.vertical-link.active{background:#f6f0df}.vertical-link:hover span{display:block}.vertical-link.active b{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#18223a}
.compact-footer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-top:28px}.footer-links-inline{display:flex;flex-wrap:wrap;gap:18px}.footer-links-inline a{color:#dce7f6;font-size:12px;font-weight:700}
.author-contact-section{background:linear-gradient(135deg,#f7faff,#fff)}.author-contact-home{display:grid;grid-template-columns:280px 1.3fr .9fr;gap:34px;align-items:center}.author-contact-photo{border-radius:26px;overflow:hidden;background:#eef2f8;border:1px solid var(--line);box-shadow:var(--shadow)}.author-contact-photo img{display:block;width:100%;height:380px;object-fit:cover;object-position:50% 12%}.author-contact-photo .portrait-caption{padding:14px 16px;background:var(--navy);color:#fff}.author-contact-photo .portrait-caption b,.author-contact-photo .portrait-caption span{display:block}.author-contact-photo .portrait-caption span{font-size:11px;color:#bfd0e5;margin-top:3px}.author-contact-bio h2{font-family:Georgia,serif;color:var(--navy);font-size:40px;margin:7px 0}.author-contact-bio p{color:var(--muted);line-height:1.75}.author-details{margin:14px 0 18px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:0 16px}.author-details summary{cursor:pointer;padding:13px 0;font-weight:800;color:var(--blue)}.author-details p{font-size:13px}.home-contact-card{background:linear-gradient(160deg,#071a35,#103b72);color:#fff;border-radius:26px;padding:26px;box-shadow:0 24px 50px rgba(7,26,53,.18)}.home-contact-card h3{font-family:Georgia,serif;font-size:27px;margin:7px 0 14px}.home-contact-card .section-kicker{color:#e2bd59}.home-contact-item{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12)}.home-contact-item small{display:block;color:#9fb5d1;text-transform:uppercase;font-size:9px;letter-spacing:.1em}.home-contact-item b{display:block;margin-top:4px;font-size:13px;line-height:1.55}.home-contact-item a{color:#fff}.home-contact-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.contact-email-btn{color:#fff!important;border-color:#59769b!important;background:transparent!important}
.hub-preparation-section{padding-bottom:48px}.hub-overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.hub-overview-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 12px 28px rgba(7,26,53,.06)}.hub-overview-card.featured{background:linear-gradient(145deg,#0a2855,#124982);color:#fff}.hub-overview-card>span{display:inline-flex;padding:5px 8px;border-radius:8px;background:#edf3fb;color:var(--blue);font-size:9px;font-weight:900;letter-spacing:.08em}.hub-overview-card.featured>span{background:rgba(255,255,255,.14);color:#f7d77d}.hub-overview-card h3{font-size:18px;margin:11px 0 7px;color:var(--navy)}.hub-overview-card.featured h3{color:#fff}.hub-overview-card p{font-size:12px;line-height:1.6;color:var(--muted);margin:0 0 12px}.hub-overview-card.featured p{color:#d9e5f4}.hub-overview-card a{font-size:11px;font-weight:900;color:var(--blue)}.hub-overview-card.featured a{color:#f5d06b}.study-path-details,.vault-catalogue-details{margin-top:22px;border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.study-path-details>summary,.vault-catalogue-details>summary{cursor:pointer;padding:17px 20px;font-size:14px;font-weight:900;color:var(--navy);background:#f8fbff}.compact-study-path{padding:20px}.study-path-actions{padding:0 20px 22px}.vault-catalogue-inner{padding:22px}
.registration-form{max-width:680px}.registration-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.registration-grid .full{grid-column:1/-1}.registration-note{font-size:11px;color:var(--muted);margin:0}.registration-error{background:#fff0f0;color:#9e2f2f;border:1px solid #efc2c2;border-radius:10px;padding:10px 12px;font-size:12px;font-weight:700}.registration-error.hidden{display:none}
.redirect-page{min-height:100vh;display:grid;place-items:center;background:#f4f8fd;padding:30px}.redirect-card{max-width:560px;background:#fff;border:1px solid var(--line);border-radius:28px;padding:36px;text-align:center;box-shadow:var(--shadow)}.redirect-card img{max-width:280px;margin:0 auto 20px}.redirect-card h1{font-family:Georgia,serif;color:var(--navy);font-size:34px}
@media(max-width:1280px){.vertical-quick-nav{display:none}.hub-overview-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:1000px){.author-contact-home{grid-template-columns:240px 1fr}.home-contact-card{grid-column:1/-1}.hub-overview-grid{grid-template-columns:repeat(2,1fr)}.compact-footer{align-items:flex-start;flex-direction:column}}
@media(max-width:650px){.author-contact-home{grid-template-columns:1fr}.author-contact-photo{max-width:330px;margin:auto}.author-contact-photo img{height:410px}.hub-overview-grid,.registration-grid{grid-template-columns:1fr}.registration-grid .full{grid-column:1}.footer-links-inline{gap:12px}}

/* Version 25 refinements */
.registration-form .registration-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.author-contact-section{padding-top:64px}
@media(max-width:700px){.registration-form .registration-grid{grid-template-columns:1fr}}


/* Version 26: quiz directions and highlighted target words */
.quiz-directions{margin:24px 0 12px;padding:16px 18px;border-radius:18px;background:linear-gradient(135deg,#eef5ff,#f9fbff);border:1px solid #cfddef;box-shadow:0 10px 24px rgba(7,26,53,.05);display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
.directions-label{display:inline-flex;align-items:center;justify-content:center;padding:7px 11px;border-radius:999px;background:#0a2453;color:#fff;font-size:10px;font-weight:900;letter-spacing:.11em;text-transform:uppercase;white-space:nowrap}
.quiz-directions p{margin:1px 0 0;color:#314866;font-size:14px;line-height:1.65;font-weight:600}
.target-word{font-weight:900;color:#061d42;background:linear-gradient(transparent 58%,rgba(218,168,55,.34) 58%);padding:0 2px;border-bottom:2px solid #d6a52f}
.quiz-card h3 .target-word{font-family:inherit}
@media(max-width:650px){.quiz-directions{grid-template-columns:1fr;gap:8px;padding:14px}.directions-label{justify-self:start}.quiz-directions p{font-size:13px}}

/* Version 27: visible reading passages in quiz mode */
.source-context.passage-context{margin:14px 0 20px;background:linear-gradient(180deg,#fffdf6,#fffaf0);border:2px solid rgba(201,155,57,.45);border-radius:18px;padding:0;box-shadow:0 14px 30px rgba(111,78,9,.08);overflow:hidden}
.source-context.passage-context summary{padding:13px 16px;background:linear-gradient(90deg,#0a2453,#173f7a);color:#fff;font-size:12px;letter-spacing:.10em;text-transform:uppercase;font-weight:900;cursor:pointer;list-style:none}
.source-context.passage-context summary::-webkit-details-marker{display:none}
.source-context.passage-context p{margin:0;padding:18px 20px;color:#24364e;font-size:15px;line-height:1.85;font-weight:500;white-space:normal}
.source-context.passage-context[open] summary{border-bottom:1px solid rgba(255,255,255,.14)}
@media(max-width:650px){.source-context.passage-context p{padding:15px 16px;font-size:14px;line-height:1.75}}


/* Version 28: Question editor */
.editor-hero{background:linear-gradient(180deg,#f4f8fd 0%,#ffffff 100%)}
.editor-note-panel{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.9fr);gap:22px;align-items:start}
.editor-steps{margin:10px 0 0 0;padding-left:18px;color:var(--muted);line-height:1.8}.editor-steps li{margin-bottom:6px}
.editor-tip-box{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.question-editor-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:24px;align-items:start}
.editor-sidebar,.editor-main{display:grid;gap:18px}.editor-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.editor-label{display:block;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}.editor-select,.editor-input,.question-editor-form input,.question-editor-form select,.question-editor-form textarea{width:100%;border:1px solid rgba(9,39,86,.14);background:#fff;border-radius:14px;padding:12px 14px;font:inherit;color:var(--ink)}
.question-editor-form textarea{resize:vertical}.editor-meta{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.55}.editor-question-list{display:grid;gap:8px;max-height:560px;overflow:auto;margin-top:12px;padding-right:4px}.editor-question-item{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:16px;border:1px solid var(--line);background:#f9fbfe;cursor:pointer;transition:.2s ease}.editor-question-item:hover{border-color:rgba(201,155,57,.48);transform:translateY(-1px)}.editor-question-item.active{background:#eef5ff;border-color:#7ea9e6;box-shadow:0 10px 22px rgba(9,39,86,.08)}.editor-question-num{flex:0 0 36px;width:36px;height:36px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}.editor-question-copy{display:grid;gap:4px;min-width:0}.editor-question-copy strong{font-size:14px;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.editor-question-copy small{color:var(--muted)}
.editor-actions .btn,.editor-actions .import-btn{width:100%;justify-content:center}.editor-actions{display:grid;gap:10px}.editor-topline{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.editor-answer-pill{padding:12px 14px;border-radius:999px;background:linear-gradient(135deg,#e7eef9,#fff6df);font-weight:800;color:var(--navy);border:1px solid rgba(201,155,57,.25);white-space:nowrap}.editor-source-line{color:var(--muted);margin-top:6px}.editor-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.editor-grid.two-col{grid-template-columns:repeat(2,minmax(0,1fr))}.question-editor-form{display:grid;gap:16px}.question-preview-box{padding:20px;border-radius:20px;background:#f9fbfe;border:1px solid var(--line)}.editor-context-box{padding:14px 16px;border-radius:16px;background:#fff6df;border:1px solid rgba(201,155,57,.24);white-space:pre-wrap;line-height:1.65;color:#59451c;margin-bottom:14px}.preview-qline{font-size:18px;line-height:1.6;margin-bottom:16px}.preview-options{display:grid;gap:10px}.preview-option{padding:11px 14px;border-radius:14px;border:1px solid var(--line);background:#fff}.preview-option.correct{border-color:#5a9d6a;background:#f3fbf4}.preview-expl{margin-top:16px;padding:14px 16px;border-radius:16px;background:#eef5ff;border:1px solid #dbe6f6;line-height:1.65;color:var(--ink)}
@media(max-width:1100px){.question-editor-layout{grid-template-columns:1fr}.editor-question-list{max-height:320px}.editor-note-panel{grid-template-columns:1fr}.editor-topline{flex-direction:column;align-items:flex-start}}
@media(max-width:700px){.editor-grid,.editor-grid.two-col{grid-template-columns:1fr}}


/* Version 39: persistent 50-question OMR progress navigator */
.quiz-main-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}
.quiz-question-column{min-width:0}
.series-question{scroll-margin-top:112px;transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease}
.series-question.question-jump-flash{border-color:rgba(201,155,57,.9);box-shadow:0 0 0 4px rgba(201,155,57,.16),0 18px 38px rgba(7,26,53,.10)}
.omr-panel{position:sticky;top:92px;align-self:start;max-height:calc(100vh - 112px);overflow:auto;background:linear-gradient(180deg,#071a35,#123e74);color:#fff;border-radius:22px;padding:18px;box-shadow:0 24px 50px rgba(7,26,53,.18);z-index:3}
.omr-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}
.omr-head b{display:block;font:700 21px/1.05 Georgia,"Times New Roman",serif;color:#fff}
.omr-head small{display:block;margin-top:5px;color:#cbd9ec;font-size:10px;font-weight:700}
.omr-head>span{font-size:10px;color:#f0c85d;font-weight:900;letter-spacing:.08em}
.omr-progress-summary{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 14px}
.omr-progress-summary>div{padding:10px 8px;border:1px solid rgba(255,255,255,.15);border-radius:14px;background:rgba(255,255,255,.07);text-align:center}
.omr-progress-summary strong{display:block;font-size:22px;line-height:1;color:#fff}
.omr-progress-summary span{display:block;margin-top:4px;font-size:9px;letter-spacing:.08em;text-transform:uppercase;color:#cbd9ec;font-weight:900}
.omr-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.omr-q{width:100%;aspect-ratio:1;border:1px solid rgba(255,255,255,.28);color:#fff;border-radius:50%;font-size:11px;font-weight:900;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease}
.omr-q.unanswered{background:#c84f55;border-color:#ed9296}
.omr-q.answered{background:#32945f;border-color:#7bc59b}
.omr-q.correct{background:#32945f;border-color:#7bc59b}
.omr-q.wrong{background:#c84f55;border-color:#ed9296}
.omr-q.unattempted{background:#758296;border-color:#aab4c2}
.omr-q:hover{transform:scale(1.08);filter:brightness(1.08)}
.omr-q.current{box-shadow:0 0 0 3px #f1c85a,0 0 0 6px rgba(241,200,90,.20);transform:scale(1.06)}
.omr-legend{display:grid;grid-template-columns:1fr;gap:7px;margin:15px 0 10px;font-size:10px;color:#d4e1f3}
.omr-legend span{display:flex;align-items:center;gap:7px}
.omr-dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex:0 0 10px}
.omr-dot.answered{background:#32945f}
.omr-dot.unanswered{background:#c84f55}
.omr-dot.current{background:#f1c85a;box-shadow:0 0 0 2px rgba(241,200,90,.24)}
.omr-help,.omr-result-note{font-size:10px;line-height:1.45;margin:10px 0 0;color:#d6e1ef}
.omr-result-note{padding-top:9px;border-top:1px solid rgba(255,255,255,.12);color:#aebfd5}
@media(max-width:1100px){.quiz-main-layout{grid-template-columns:1fr}.omr-panel{position:relative;top:auto;max-height:none;order:-1}.omr-grid{grid-template-columns:repeat(10,minmax(0,1fr))}.omr-progress-summary{max-width:320px}}
@media(max-width:650px){.omr-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.omr-panel{padding:16px}.omr-q{font-size:10px}.omr-progress-summary{max-width:none}}

/* Version 41: truly persistent OMR while questions scroll */
#quizArena.section-soft{overflow:visible!important}
#quizArena>.container,#quizArena .source-quiz-workspace,#quizArena .quiz-main-layout{overflow:visible!important}
.omr-panel{position:sticky!important;top:86px!important;align-self:start!important;max-height:calc(100vh - 102px)!important;overflow-y:auto!important;overscroll-behavior:contain;z-index:25!important}
@media (min-width:851px) and (max-width:1100px){
  .quiz-main-layout,.quiz-layout-shell{grid-template-columns:minmax(0,1fr) 270px!important;gap:18px!important}
  .omr-panel{position:sticky!important;top:82px!important;order:initial!important;max-height:calc(100vh - 96px)!important}
  .omr-grid{grid-template-columns:repeat(5,minmax(0,1fr))!important}
  .omr-progress-summary{max-width:none!important}
}
@media (max-width:850px){
  .quiz-main-layout,.quiz-layout-shell{grid-template-columns:1fr!important}
  .omr-panel{position:sticky!important;top:72px!important;order:-1!important;max-height:none!important;overflow:visible!important;padding:11px 12px!important;border-radius:16px!important;box-shadow:0 12px 28px rgba(7,26,53,.22)!important}
  .omr-head{margin-bottom:7px!important;align-items:center!important}
  .omr-head b{font-size:16px!important}.omr-head small{display:none!important}.omr-head>span{font-size:9px!important}
  .omr-progress-summary{display:flex!important;gap:6px!important;margin:0 0 7px!important;max-width:none!important}
  .omr-progress-summary>div{padding:5px 9px!important;display:flex!important;align-items:center!important;gap:5px!important}
  .omr-progress-summary strong{font-size:15px!important}.omr-progress-summary span{margin:0!important;font-size:8px!important}
  .omr-grid{display:flex!important;grid-template-columns:none!important;gap:6px!important;overflow-x:auto!important;overflow-y:hidden!important;padding:2px 2px 7px!important;scrollbar-width:thin!important;-webkit-overflow-scrolling:touch}
  .omr-q{flex:0 0 31px!important;width:31px!important;height:31px!important;aspect-ratio:auto!important;font-size:9px!important}
  .omr-legend,.omr-help,.omr-result-note{display:none!important}
  .series-question{scroll-margin-top:205px!important}
}

/* Version 42: persistent OMR visibility during question scrolling */
@media (min-width:1101px){
  .quiz-layout-shell{align-items:start}
  .omr-panel{
    position:sticky;
    top:94px;
    max-height:calc(100vh - 112px);
    overflow:auto;
    overscroll-behavior:contain;
    scrollbar-width:thin;
    z-index:25;
  }
}
/* Before submission: green = answered, red = unanswered. Current question keeps its status colour with a gold ring. */
.omr-q.answered{background:#2f9a62!important;border-color:#78c99a!important;color:#fff!important}
.omr-q.unanswered{background:#c94f4f!important;border-color:#e68d8d!important;color:#fff!important}
.omr-q.current{outline:3px solid #f0c85d!important;outline-offset:2px;transform:scale(1.05);box-shadow:0 0 0 2px rgba(7,26,53,.18)}
.omr-q.current.answered{background:#2f9a62!important;color:#fff!important}
.omr-q.current.unanswered{background:#c94f4f!important;color:#fff!important}
.omr-dot.answered{background:#2f9a62!important}
.omr-dot.unanswered{background:#c94f4f!important}

/* Version 45: clearer colour accents for study links + new homepage parade slide */
:root{
  --teal:#087b72;
  --teal2:#10a091;
  --orange:#c96c22;
  --violet:#6948b8;
}

/* Keep the military-academic look, but make actionable links immediately visible. */
.nav .quiz-nav-link{
  color:#fff !important;
  background:linear-gradient(135deg,#1756a0,#087b72);
  padding:9px 12px;
  border-radius:10px;
  box-shadow:0 7px 18px rgba(23,86,160,.18);
}
.nav .quiz-nav-link:hover{color:#fff !important;transform:translateY(-1px)}

.btn-outline{
  color:#124f91;
  border-color:#9cc2eb;
  background:linear-gradient(180deg,#fff,#eef6ff);
}
.btn-outline:hover{border-color:#1756a0;box-shadow:0 10px 22px rgba(23,86,160,.13)}

/* Year-wise PDF links */
.paper-btn.download{
  color:#fff;
  background:linear-gradient(135deg,#1756a0,#2677c9);
  border-color:#1756a0;
  box-shadow:0 7px 16px rgba(23,86,160,.14);
}
.paper-btn.download:hover{border-color:#0d417d;box-shadow:0 10px 24px rgba(23,86,160,.22)}
.paper-btn.download:after{color:#0a5e4d;background:#dff8ef}

/* Study libraries: each area gets a distinct but restrained accent. */
.nda-download-card .small-btn.primary,
.nda-download-card .small-btn:not(.disabled){
  color:#fff;
  background:linear-gradient(135deg,#1756a0,#2677c9);
  border-color:#1756a0;
  box-shadow:0 7px 16px rgba(23,86,160,.14);
}
.vocab-download-card .small-btn.primary,
.vocab-download-card .small-btn:not(.disabled){
  color:#fff;
  background:linear-gradient(135deg,#087b72,#10a091);
  border-color:#087b72;
  box-shadow:0 7px 16px rgba(8,123,114,.14);
}
.qb-download-card .small-btn.primary,
.qb-download-card .small-btn:not(.disabled){
  color:#231a05;
  background:linear-gradient(135deg,#e0ad3f,#f4cd76);
  border-color:#d4a035;
  box-shadow:0 7px 16px rgba(201,155,57,.18);
}
.golden-resource .btn-primary{background:linear-gradient(135deg,#6948b8,#8367ca)}

.resource-link b{
  display:inline-flex;
  width:max-content;
  margin-top:12px;
  padding:7px 10px;
  border-radius:9px;
  background:#e9f3ff;
  color:#15579e;
  border:1px solid #c9def5;
}
.resource-link:nth-child(2) b{background:#e4f8f3;color:#087b72;border-color:#bfe8dd}
.resource-link:nth-child(4) b{background:#fff2cd;color:#76570e;border-color:#ead18d}
.resource-card.resource-link:hover{border-color:#9fc2e8;box-shadow:0 14px 30px rgba(23,86,160,.11);transform:translateY(-3px)}

/* Quiz paper selectors are now visually unmistakable as clickable items. */
.series-set-card{border-top:4px solid #1756a0;background:linear-gradient(180deg,#fff,#f8fbff)}
.series-set-card:nth-child(3n+2){border-top-color:#087b72;background:linear-gradient(180deg,#fff,#f7fdfb)}
.series-set-card:nth-child(3n){border-top-color:#c99b39;background:linear-gradient(180deg,#fff,#fffcf4)}
.series-set-no{background:linear-gradient(135deg,#e6f1ff,#dcecff);color:#124f91}
.series-set-card:nth-child(3n+2) .series-set-no{background:#dff7f1;color:#087b72}
.series-set-card:nth-child(3n) .series-set-no{background:#fff2ca;color:#7b5b0b}
.series-go{
  padding:7px 10px;border-radius:999px;background:#1756a0;color:#fff;
}
.series-set-card:nth-child(3n+2) .series-go{background:#087b72}
.series-set-card:nth-child(3n) .series-go{background:#c48b20;color:#fff}

/* Slightly richer section accents without making the site crowded. */
.student-hub-home{background:linear-gradient(180deg,#f9fcff,#eef6ff)}
.daily-quiz-home{background:linear-gradient(180deg,#fffaf0,#f7fbff) !important}
.question-bank-section{background:linear-gradient(180deg,#fffaf0 0%,#f7fbff 100%)}

/* New user-supplied ceremonial parade slide. */
.slide-cta{
  display:inline-flex;
  margin-top:14px;
  padding:8px 12px;
  border-radius:9px;
  background:linear-gradient(135deg,#f0c66f,#c99b39);
  color:#1b1a16;
  font-size:11px;
  font-weight:900;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}
.slide-cta:hover{transform:translateY(-1px)}

@media(max-width:760px){
  .nav .quiz-nav-link{background:transparent;color:#1756a0 !important;padding:9px 0;box-shadow:none}
  .paper-btn.download{width:100%;justify-content:space-between}
}


/* Version 46: separate Online Sample Paper practice link and cards */
.nav .sample-nav-link{
  color:#2d2106 !important;
  background:linear-gradient(135deg,#f2c86f,#e2aa39);
  padding:9px 12px;
  border-radius:10px;
  box-shadow:0 7px 18px rgba(201,155,57,.18);
  white-space:nowrap;
}
.nav .sample-nav-link:hover,.nav .sample-nav-link.active{color:#201704 !important;transform:translateY(-1px)}
.sample-flash-btn{box-shadow:0 0 0 rgba(201,155,57,0);animation:flashPulse 1.25s infinite alternate}
.sample-slide-cta{margin-left:8px;background:linear-gradient(135deg,#e0ad3f,#f4cd76)!important;color:#231a05!important;border-color:#d4a035!important}
body[data-quiz-kind="sample"] .quiz-command-hero{background:linear-gradient(135deg,#fffaf0,#f6fbff)}
body[data-quiz-kind="sample"] .series-set-card{border-color:#ead8a7;background:linear-gradient(180deg,#fffdf8,#fff9ea)}
body[data-quiz-kind="sample"] .series-set-card:hover{border-color:#d7aa42;box-shadow:0 16px 34px rgba(180,125,20,.13)}
body[data-quiz-kind="sample"] .series-set-no{background:linear-gradient(135deg,#e0ad3f,#f4cd76);color:#241a03}
body[data-quiz-kind="sample"] .series-go{color:#8c5e05}
@media(max-width:1180px){.nav{gap:12px;font-size:12px}.nav .quiz-nav-link,.nav .sample-nav-link{padding:8px 9px}}

/* Supabase-authenticated Student Hub */
.auth-status{border:1px solid #cfd9e6;background:#f4f8fc;color:#41566f;border-radius:11px;padding:11px 13px;font-size:12px;font-weight:700;line-height:1.5}.auth-status.success{background:#eef9f2;border-color:#a9d8b9;color:#25633d}.auth-status.error{background:#fff0f0;border-color:#efc2c2;color:#9e2f2f}.auth-status.hidden{display:none}.student-profile-form button:disabled{opacity:.65;cursor:wait}