@import "https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700&family=Instrument+Serif:ital@0;1&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--bg-primary:#faf9f6;--bg-card:#f0eee6;--bg-card-hover:#e6e2d6;--bg-card-light:#fff;--bg-terracotta-light:#fbf5f1;--text-primary:#141413;--text-secondary:#2c2b25;--text-muted:#5e5b4e;--text-faint:#7c7968;--border-subtle:#1f1e1d1f;--border-strong:#141413;--accent-terracotta:#cc785c;--accent-terracotta-hover:#b0562f;--accent-terracotta-dark:#99461f;--accent-gold:#c5a059;--accent-blue:#3b82f6;--accent-green:#10b981;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-pill:9999px;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 12px #2c2b2514;--shadow-lg:0 10px 30px #2c2b251f;--font-serif:"Instrument Serif", "Georgia", "Copernicus", serif;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", "SF Mono", "Monaco", monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-size:16px;line-height:1.5}a{color:inherit;text-decoration:none}button{font-family:inherit}.serif-title{font-family:var(--font-serif);letter-spacing:-.02em;font-weight:400}.mono-text{font-family:var(--font-mono)}.container-custom{max-width:1240px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}.container-narrow{max-width:860px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}.btn-primary{background-color:var(--text-primary);color:#fff;border-radius:var(--radius-sm);border:1px solid var(--text-primary);cursor:pointer;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.9375rem;font-weight:500;line-height:1;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary:hover{opacity:.92;background-color:#2c2b25;transform:translateY(-1px)}.btn-terracotta{background-color:var(--accent-terracotta);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.9375rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.btn-terracotta:hover{background-color:var(--accent-terracotta-hover);transform:translateY(-1px)}.btn-secondary{color:var(--text-primary);border-radius:var(--radius-sm);border:1px solid var(--border-subtle);cursor:pointer;background-color:#0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:.9375rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.btn-secondary:hover{background-color:var(--bg-card);border-color:var(--border-strong)}.badge-free{border-radius:var(--radius-pill);color:var(--text-muted);border:1px solid var(--border-subtle);background:#2c2b250f;padding:4px 10px;font-size:.75rem;font-weight:500;display:inline-block}.badge-tag{color:var(--text-secondary);background:#e5e2d9;border-radius:4px;padding:3px 8px;font-size:.75rem;font-weight:500;display:inline-block}.badge-type{color:var(--text-primary);text-transform:uppercase;letter-spacing:.5px;border-radius:var(--radius-pill);background:#e3dacc;padding:2px 8px;font-size:.6875rem;font-weight:600;display:inline-block}.site-header{background-color:var(--bg-primary);border-bottom:1px solid var(--border-subtle);z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:64px;display:flex}.header-logo{color:var(--text-primary);align-items:center;gap:10px;font-size:1.125rem;font-weight:700;display:flex}.header-logo-icon{background-color:var(--accent-terracotta);color:#fff;border-radius:4px;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;font-weight:800;display:flex}.search-input-wrapper{width:320px;position:relative}.search-input{border:1px solid var(--border-subtle);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);background:#fff;outline:none;padding:8px 12px 8px 36px;font-size:.875rem;transition:border-color .2s,box-shadow .2s}.search-input:focus{border-color:var(--border-strong);box-shadow:0 0 0 2px #14141314}.search-icon{color:var(--text-faint);pointer-events:none;position:absolute;top:50%;left:10px;transform:translateY(-50%)}.catalog-layout{grid-template-columns:240px 1fr;gap:40px;padding-top:36px;padding-bottom:80px;display:grid}@media (max-width:900px){.catalog-layout{grid-template-columns:1fr;gap:24px}}.course-card{background-color:var(--bg-card);border-radius:var(--radius-lg);border:1px solid #0000;flex-direction:column;justify-content:space-between;padding:28px;text-decoration:none;transition:all .2s;display:flex;position:relative}.course-card:hover{background-color:var(--bg-card-hover);box-shadow:var(--shadow-md);border-color:#1f1e1d2e;transform:translateY(-2px)}.course-card-title{font-family:var(--font-serif);color:var(--text-primary);margin-bottom:8px;font-size:1.625rem;line-height:1.25}.course-card-desc{color:var(--text-muted);margin-bottom:16px;font-size:.9375rem;line-height:1.55}.detail-hero{border-bottom:1px solid var(--border-subtle);padding:56px 0}.detail-hero-grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:48px;display:grid}@media (max-width:860px){.detail-hero-grid{grid-template-columns:1fr;gap:32px}}.detail-title{font-family:var(--font-serif);color:var(--text-primary);margin-bottom:16px;font-size:3.25rem;line-height:1.1}@media (max-width:640px){.detail-title{font-size:2.25rem}}.curriculum-module{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-subtle);margin-bottom:20px;overflow:hidden}.module-header{border-bottom:1px solid var(--border-subtle);background:#00000005;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.lesson-row{border-bottom:1px solid #1f1e1d0f;justify-content:space-between;align-items:center;padding:14px 20px;text-decoration:none;transition:background .15s;display:flex}.lesson-row:last-child{border-bottom:none}.lesson-row:hover{background:#00000008}.lesson-player-layout{grid-template-columns:320px 1fr;min-height:calc(100vh - 64px);display:grid}@media (max-width:900px){.lesson-player-layout{grid-template-columns:1fr}}.lesson-sidebar{background:var(--bg-card);border-right:1px solid var(--border-subtle);max-height:calc(100vh - 64px);position:sticky;top:64px;overflow-y:auto}.lesson-main-content{width:100%;max-width:860px;margin:0 auto;padding:40px 60px}@media (max-width:640px){.lesson-main-content{padding:24px 16px}}.prose-anthropic h1{font-family:var(--font-serif);color:var(--text-primary);margin-bottom:24px;font-size:2.5rem;line-height:1.2}.prose-anthropic h2{font-family:var(--font-sans);color:var(--text-primary);margin-top:36px;margin-bottom:14px;font-size:1.5rem;font-weight:600}.prose-anthropic h3{color:var(--text-primary);margin-top:24px;margin-bottom:10px;font-size:1.1875rem;font-weight:600}.prose-anthropic p{color:var(--text-secondary);margin-bottom:18px;font-size:1.0625rem;line-height:1.7}.prose-anthropic ul,.prose-anthropic ol{margin-bottom:20px;padding-left:24px}.prose-anthropic li{color:var(--text-secondary);margin-bottom:8px;font-size:1.0625rem;line-height:1.65}.prose-anthropic pre{color:#f0eee6;border-radius:var(--radius-sm);font-family:var(--font-mono);background-color:#141413;margin:20px 0;padding:18px 20px;font-size:.9rem;line-height:1.55;overflow-x:auto}.prose-anthropic code{font-family:var(--font-mono);background:#0000000d;border-radius:4px;padding:2px 6px;font-size:.9em}.prose-anthropic pre code{background:0 0;padding:0}.quiz-box{border:1px solid var(--border-subtle);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:#fff;margin:32px 0;padding:24px}.quiz-option{border:1px solid var(--border-subtle);border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-primary);align-items:center;gap:12px;margin-bottom:10px;padding:12px 16px;transition:all .15s;display:flex}.quiz-option:hover{background:var(--bg-card);border-color:var(--border-strong)}.quiz-option.selected{border-color:var(--accent-terracotta);background:var(--bg-terracotta-light)}.quiz-option.correct{border-color:var(--accent-green);background:#10b98114}.quiz-option.incorrect{background:#ef444414;border-color:#ef4444}.certificate-frame{text-align:center;box-shadow:var(--shadow-lg);background:#fff;border:12px solid #2c2b25;border-radius:8px;max-width:800px;margin:0 auto;padding:48px 36px;position:relative}.certificate-inner-border{border:2px solid var(--accent-gold);border-radius:4px;padding:36px 24px}.cert-badge{background:var(--accent-gold);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:72px;height:72px;margin:0 auto 20px;display:flex;box-shadow:0 4px 10px #c5a0594d}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.3s ease-out forwards fadeIn}