:root{--bg:#f6f7fb;--panel:#fff;--ink:#172033;--muted:#667085;--brand:#7c3aed;--brand2:#06b6d4;--ok:#15803d;--bad:#b91c1c;--line:#e5e7eb;--shadow:0 12px 30px rgba(23,32,51,.08)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#eef2ff,#f6f7fb 32rem);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5}.site-header{position:sticky;top:0;z-index:5;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem clamp(1rem,4vw,2rem)}.brand{display:flex;align-items:center;gap:.7rem;font-weight:900;text-decoration:none;color:var(--ink);font-size:1.2rem}.brand img{width:42px;height:42px;object-fit:contain}nav{display:flex;gap:.4rem;flex-wrap:wrap}nav a,.btn,button{border:0;border-radius:999px;background:var(--brand);color:white;padding:.72rem 1rem;text-decoration:none;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;gap:.4rem}nav a{background:transparent;color:var(--ink);padding:.5rem .7rem}.btn.secondary,button.secondary{background:#eef2ff;color:#3730a3}.btn.ghost{background:transparent;color:var(--brand)}.container{max-width:1050px;margin:0 auto;padding:2rem 1rem}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:1.4rem;align-items:center}.card{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:1.4rem;box-shadow:var(--shadow);margin-bottom:1rem}.hero h1{font-size:clamp(2.1rem,6vw,4.2rem);line-height:1;margin:.2rem 0}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.stat{font-size:2rem;font-weight:900}.question{padding:1rem;border:1px solid var(--line);border-radius:18px;margin:1rem 0;background:white}.options{display:grid;gap:.65rem}.option{display:flex;gap:.7rem;align-items:flex-start;padding:.8rem;border:1px solid var(--line);border-radius:14px;cursor:pointer}.option:hover{border-color:var(--brand)}input,select,textarea{width:100%;padding:.8rem;border:1px solid var(--line);border-radius:14px;font:inherit;background:white}label{font-weight:650}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.notice{padding:1rem;border-radius:16px;background:#eef2ff}.success{background:#dcfce7;color:#14532d}.error{background:#fee2e2;color:#7f1d1d}.progress{height:12px;border-radius:999px;background:#e5e7eb;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));width:0}.answers .correct{border-color:#86efac;background:#f0fdf4}.answers .wrong{border-color:#fecaca;background:#fef2f2}table{width:100%;border-collapse:collapse}td,th{padding:.65rem;border-bottom:1px solid var(--line);text-align:left}.site-footer{text-align:center;padding:2rem;color:var(--muted)}@media(max-width:760px){.hero,.grid,.form-row{grid-template-columns:1fr}.site-header{align-items:flex-start;flex-direction:column}nav a{padding:.35rem}.container{padding:1rem}.card{border-radius:18px}}

/* Modern quiz player */
.quiz-shell{max-width:980px;margin:0 auto}.quiz-hero{display:grid;grid-template-columns:1.35fr .65fr;gap:1.25rem;align-items:center}.eyebrow{margin:0 0 .35rem;color:var(--brand);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem}.quiz-meter{display:grid;gap:.45rem}.quiz-form{position:relative}.question-card{display:none;background:var(--panel);border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);padding:clamp(1rem,3vw,1.65rem);margin:1rem 0;animation:wizzyIn .22s ease-out}.question-card.is-active{display:block}.question-card h2{margin:.85rem 0 1.15rem;font-size:clamp(1.25rem,3.5vw,1.8rem);line-height:1.25}.question-head{display:flex;justify-content:space-between;gap:.75rem;align-items:center;flex-wrap:wrap}.question-pill,.points-pill{display:inline-flex;align-items:center;border-radius:999px;padding:.35rem .7rem;background:#eef2ff;color:#3730a3;font-weight:850;font-size:.85rem}.points-pill{background:#ecfeff;color:#155e75}.modern-options{gap:.8rem}.option-card{position:relative;display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:.75rem;width:100%;padding:1rem 1.05rem;border:2px solid var(--line);border-radius:18px;background:#fff;cursor:pointer;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease,background .15s ease;font-weight:750}.option-card:hover{border-color:var(--brand);box-shadow:0 10px 22px rgba(124,58,237,.12);transform:translateY(-1px)}.option-card input{position:absolute;opacity:0;pointer-events:none}.fake-radio{width:1.25rem;height:1.25rem;border:2px solid #98a2b3;border-radius:999px;display:inline-flex;align-items:center;justify-content:center}.option-card input:checked + .fake-radio{border-color:var(--brand);background:var(--brand)}.option-card input:checked + .fake-radio:after{content:'';width:.45rem;height:.45rem;border-radius:999px;background:#fff}.answer-letter{width:2rem;height:2rem;border-radius:10px;background:#f2f4f7;display:inline-flex;align-items:center;justify-content:center;font-weight:950;color:#344054}.answer-text{font-size:1.04rem}.option-card:has(input:checked){border-color:var(--brand);background:#f5f3ff}.correct-option{border-color:#22c55e!important;background:#f0fdf4!important}.wrong-option{border-color:#ef4444!important;background:#fef2f2!important}.correct-option .answer-letter{background:#dcfce7;color:#166534}.wrong-option .answer-letter{background:#fee2e2;color:#991b1b}.answer-reveal{margin-top:1rem;padding:1rem;border-radius:16px;background:#f8fafc;border:1px solid var(--line)}.quiz-controls{position:sticky;bottom:1rem;z-index:4;display:flex;justify-content:space-between;gap:.75rem;align-items:center}.quiz-controls .finish-btn{margin-left:auto}.question-card.needs-answer{animation:wizzyShake .35s ease-in-out 0s 2;border-color:#f97316}.text-answer-label{display:block;margin-bottom:.5rem}.text-answer{font-size:1.1rem}.review-mode .question-card{display:block}.result-card{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}.progress span{transition:width .22s ease}@keyframes wizzyIn{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:translateX(0)}}@keyframes wizzyShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}@media(max-width:760px){.quiz-hero{grid-template-columns:1fr}.option-card{grid-template-columns:auto auto 1fr;padding:.9rem}.quiz-controls{bottom:.5rem;flex-wrap:wrap}.quiz-controls .btn{flex:1;justify-content:center}.answer-text{font-size:1rem}}


/* AdSense / SEO polish */
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;z-index:999;background:#fff;color:var(--ink);padding:.7rem 1rem;border-radius:12px;box-shadow:var(--shadow)}
.lead{font-size:1.12rem;color:#344054}.hero-buttons{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.2rem}.content-card{font-size:1.05rem}.content-card h1,.content-card h2{line-height:1.15}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1rem}.feature-grid article{padding:1rem;border:1px solid var(--line);border-radius:18px;background:#fff}.category-grid{align-items:stretch}.category-grid .card{margin-bottom:0}.legal h2{margin-top:1.6rem}.footer-links{display:flex;gap:.45rem;justify-content:center;flex-wrap:wrap}.footer-links a{color:var(--muted)}.contact-form{display:grid;gap:1rem;max-width:720px}.hero-side hr{border:0;border-top:1px solid var(--line);margin:1rem 0}.site-header nav a:hover{background:#f2f4f7}.brand span{white-space:nowrap}
@media(max-width:760px){.feature-grid{grid-template-columns:1fr}.hero-buttons .btn{width:100%;justify-content:center}}

/* Quiz player reliability fixes */
.question-card[hidden]{display:none!important}.option-card.chosen{border-color:var(--brand);background:#f5f3ff}.option-card.chosen .fake-radio{border-color:var(--brand);background:var(--brand)}.option-card.chosen .fake-radio:after{content:'';width:.45rem;height:.45rem;border-radius:999px;background:#fff}.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;z-index:99;background:#fff;color:var(--ink);padding:.75rem 1rem;border-radius:12px;box-shadow:var(--shadow)}

/* Admin Email Centre */
.email-centre-hero{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}.email-status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.email-centre-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:1rem}.settings-form{display:grid;gap:1rem}.status-badge{font-size:1.35rem;font-weight:900;margin:.2rem 0}.status-ok{color:var(--ok)}.status-bad{color:var(--bad)}.soft-rule{border:0;border-top:1px solid var(--line);margin:1.5rem 0}.log-heading{display:flex;justify-content:space-between;gap:1rem;align-items:center;flex-wrap:wrap}.email-log{max-height:440px;overflow:auto;background:#101828;color:#e5e7eb;padding:1rem;border-radius:16px;white-space:pre-wrap;word-break:break-word;font-size:.88rem}.notice.notice{background:#eef2ff;color:#3730a3}@media(max-width:760px){.email-status-grid,.email-centre-grid{grid-template-columns:1fr}}

/* AdSense Edition 2.0 */
:root{--ink:#172033;--muted:#627087;--paper:#f5f7fb;--brand:#6d45e8;--brand2:#16a085;--line:#dfe5ef;--radius:20px}body{background:var(--paper);color:var(--ink)}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.site-header nav{display:flex;gap:.2rem;flex-wrap:wrap}.site-header nav a{padding:.65rem .75rem;border-radius:10px}.site-header nav a:hover{background:#f0edff}.nav-toggle{display:none}.hero-main{background:linear-gradient(135deg,#fff 0%,#f1edff 100%)}.trust-list{display:flex;gap:1.25rem;flex-wrap:wrap;padding:0;list-style:none;color:var(--muted);font-weight:700}.trust-list li:before{content:'✓ ';color:var(--brand2)}.stats-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0}.stats-strip div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;text-align:center}.stats-strip strong{display:block;font-size:2rem}.stats-strip span{color:var(--muted)}.split-section{display:grid;grid-template-columns:1.25fr .75fr;gap:1.25rem}.link-list{display:grid}.link-list a{display:flex;justify-content:space-between;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line);text-decoration:none}.newsletter-panel{display:flex;align-items:center;justify-content:space-between;gap:2rem;margin-top:1.5rem;background:#172033;color:#fff}.question-library{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.library-card h2{font-size:1.08rem;line-height:1.45}.library-card h2 a{text-decoration:none;color:var(--ink)}.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.archive-card time{font-size:1.1rem;font-weight:800}.pagination{display:flex;justify-content:center;align-items:center;gap:1rem;margin:1.5rem}.search-box{display:flex;gap:.75rem;max-width:720px}.search-box input{flex:1;padding:.9rem 1rem;border:1px solid var(--line);border-radius:12px;font:inherit}.answer-page{padding:clamp(1.5rem,5vw,4rem);text-align:center}.answer-page h1{max-width:850px;margin-inline:auto}.answer-disclosure{max-width:650px;margin:2rem auto 0;border:1px solid var(--line);border-radius:16px;overflow:hidden}.answer-disclosure summary{cursor:pointer;padding:1rem;font-weight:800;background:#f6f4ff}.answer-disclosure div{padding:1.5rem}.answer-label{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:800}.source-note{margin-top:2rem;color:var(--muted)}.answer-list{display:grid;gap:1rem}.answer-item{display:flex;gap:1rem;align-items:flex-start}.answer-item h2{font-size:1.15rem;margin-top:0}.question-number{display:grid;place-items:center;min-width:2.25rem;height:2.25rem;border-radius:50%;background:#efeaff;color:var(--brand);font-weight:900}.next-actions{display:flex;gap:1rem;margin-top:1rem}.prose{max-width:850px;margin-inline:auto}.prose h2{margin-top:2rem}.site-footer{display:grid;grid-template-columns:1fr 2fr auto;gap:2rem;align-items:start}.footer-links{display:flex!important;flex-wrap:wrap;gap:.75rem!important}.footer-links span{display:none}
@media(max-width:900px){.split-section,.question-library,.archive-grid{grid-template-columns:1fr 1fr}.site-footer{grid-template-columns:1fr}.nav-toggle{display:block}.site-header nav{display:none;width:100%}.site-header nav.is-open{display:grid}.site-header{flex-wrap:wrap}.newsletter-panel{align-items:flex-start;flex-direction:column}}
@media(max-width:600px){.stats-strip,.question-library,.archive-grid{grid-template-columns:1fr}.search-box{flex-direction:column}.next-actions{flex-direction:column}.link-list a{display:block}.site-header .brand span{font-size:1.2rem}}