:root{--wine:#7b1734;--wine2:#4e0d22;--gold:#d8ad36;--ink:#17212b;--muted:#667085;--line:#e1e5ea;--soft:#f6f7f9;--white:#fff;--blue:#245c78;--green:#23745a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--soft);color:var(--ink);font:16px/1.65 Inter,Arial,sans-serif}a{color:inherit}.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:99}.site-header{position:sticky;top:0;z-index:30;background:#fff;border-bottom:4px solid var(--gold);box-shadow:0 2px 15px #17203312}.header-inner{max-width:1280px;min-height:74px;margin:auto;padding:0 22px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none}.brand-mark{width:45px;height:45px;border-radius:50%;display:grid;place-items:center;background:var(--wine);border:3px solid var(--gold);color:#fff;font-weight:900}.brand-text{display:grid;line-height:1.15}.brand-text b{color:var(--wine)}.brand-text span{font-size:.76rem;color:var(--muted)}.top-nav{margin-left:auto;display:flex;align-items:center;gap:5px}.top-nav a{padding:8px 10px;border-radius:8px;text-decoration:none;font-size:.86rem;font-weight:800;color:#4b5563}.top-nav a:hover,.top-nav a.active{background:#f8eaf0;color:var(--wine)}.menu{display:none;margin-left:auto;border:0;border-radius:8px;padding:9px 12px;background:var(--wine);color:#fff;font-weight:800}.module-hero{background:linear-gradient(125deg,var(--wine2),var(--wine) 68%,#a2495d);color:#fff}.hero-inner{max-width:1280px;margin:auto;padding:22px 22px 24px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}.eyebrow{margin:0 0 8px;color:var(--gold);font-size:.75rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.module-hero h1{margin:0;font-size:clamp(2rem,4vw,3.25rem);line-height:1.08}.module-hero p{max-width:760px;margin:13px 0 0;color:#f5e2e8;font-size:1.06rem}.topic-chip{padding:15px 18px;border:1px solid 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#ead18b;margin-left:17px}.step:last-child{padding-bottom:0}.step:before{counter-increment:step;content:counter(step);position:absolute;left:-18px;top:0;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--wine);color:#fff;font-weight:900;border:4px solid #fff}.step h4{margin:2px 0 4px;color:var(--wine)}.step p{margin:0;color:var(--muted)}.callout{display:flex;gap:15px;align-items:flex-start;border-left:5px solid var(--gold);background:#fffaf0}.callout strong{color:var(--wine)}.callout p{margin:0}.callout.tip{border-left-color:var(--green);background:#f2fbf7}.callout.warning{border-left-color:#d36a39;background:#fff7f2}.pill{display:inline-block;padding:4px 9px;border-radius:99px;background:#e8f2f6;color:var(--blue);font-size:.7rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase}pre{overflow:auto;margin:12px 0 0;padding:18px;border-radius:11px;background:#18202b;color:#eef4f7;font:14px/1.55 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var(--line);border-radius:10px;background:#fff;color:var(--wine);text-decoration:none;font-weight:850}.lesson-nav a.next{margin-left:auto;background:var(--wine);color:#fff;border-color:var(--wine)}footer{background:#2b1620;color:#eadfe3}.footer-inner{max-width:1280px;margin:auto;padding:30px 22px;display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-inner p{margin:0;font-size:.84rem}.visitor-badge img{vertical-align:middle;margin-left:10px}.progress-track{height:5px;background:#eadfe3}.progress-track span{display:block;height:100%;background:var(--gold);width:var(--progress)}
@media(max-width:960px){.menu{display:block}.top-nav{display:none;position:absolute;top:74px;left:0;right:0;padding:12px 20px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.top-nav.open{display:flex}.module-shell{grid-template-columns:1fr}.module-nav{position:static;display:grid;grid-template-columns:repeat(2,1fr)}.module-nav p{grid-column:1/-1}.hero-inner{grid-template-columns:1fr}.topic-chip{justify-self:start}.grid{grid-template-columns:1fr}}@media(max-width:580px){.brand-text span{display:none}.module-nav{grid-template-columns:1fr}.footer-inner{align-items:flex-start;flex-direction:column}.lesson-nav{flex-direction:column}.lesson-nav a.next{margin-left:0}.hero-inner,.module-shell{padding-left:15px;padding-right:15px}table{font-size:.84rem}th,td{padding:9px}}
.learning-visual{margin:0 0 24px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px #1720330b}.learning-visual img{display:block;width:100%;height:auto;border-radius:11px}.learning-visual figcaption{margin-top:11px;color:var(--muted);font-size:.84rem;text-align:center}.visual-note{margin-top:-12px;margin-bottom:22px;color:var(--muted);font-size:.85rem;text-align:center}

.zoomable-image{cursor:zoom-in}.image-lightbox{width:min(96vw,1500px);max-width:none;padding:42px 18px 18px;border:0;border-radius:16px;background:#fff;box-shadow:0 25px 80px #0008}.image-lightbox::backdrop{background:#07101dcc}.image-lightbox img{display:block;max-width:100%;max-height:86vh;margin:auto}.image-lightbox button{position:absolute;right:12px;top:7px;width:34px;height:34px;border:0;border-radius:50%;background:var(--wine);color:#fff;font-size:1.4rem;cursor:pointer}.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.comparison-grid>div{padding:20px;border:1px solid var(--line);border-radius:13px;background:var(--soft)}.comparison-grid h4{margin:10px 0 5px;color:var(--wine)}.analysis-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.analysis-grid div{display:grid;gap:4px;padding:15px;border-left:4px solid var(--gold);border-radius:8px;background:var(--soft)}.analysis-grid span{color:var(--muted);font-size:.9rem}.table-scroll{overflow-x:auto}.copy-source{position:absolute;left:-9999px}.copy-button{border:0;cursor:pointer;margin-right:8px;font:inherit}.secondary-button{padding:10px 14px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--wine);font-weight:850;cursor:pointer}.glossary-search{width:100%;margin-bottom:16px;padding:13px 15px;border:1px solid var(--line);border-radius:10px;font:inherit}.empty-state{text-align:center;color:var(--muted)}.quiz-form{display:grid;gap:16px}.quiz-question{margin:0;padding:22px;border:1px solid var(--line);border-radius:15px;background:#fff}.quiz-question legend{padding:0 8px;color:var(--wine);font-weight:850}.quiz-question legend span{display:inline-grid;place-items:center;width:28px;height:28px;margin-right:9px;border-radius:50%;background:var(--wine);color:#fff}.quiz-question label{display:flex;gap:10px;margin:10px 0;padding:10px 12px;border:1px solid #e8ebef;border-radius:9px;cursor:pointer}.quiz-question label:has(input:checked){border-color:var(--wine);background:#fdf2f5}.quiz-feedback{margin:10px 0 0;font-weight:700}.quiz-question.correct{border-color:#16a34a;background:#f0fdf4}.quiz-question.incorrect{border-color:#dc2626;background:#fff7f7}.quiz-actions{display:flex;gap:10px;align-items:center}.quiz-actions .tool-link{border:0;cursor:pointer;font:inherit}.quiz-result{display:flex;align-items:center;gap:18px;padding:22px;border-radius:15px;background:#fff8e5;border:2px solid var(--gold)}.quiz-result strong{color:var(--wine);font-size:1.8rem}.quiz-result span{color:var(--muted)}@media(max-width:700px){.comparison-grid,.analysis-grid{grid-template-columns:1fr}.learning-visual{padding:8px}.quiz-actions{align-items:stretch;flex-direction:column}.quiz-result{align-items:flex-start;flex-direction:column}}