/* Academy-specific styles */
.academy-hero{background:linear-gradient(170deg,#fff5ec 0%,#ffe0cc 70%,#ffcba4 100%);padding:60px 0 40px;text-align:center}
.academy-hero h1{font-size:clamp(32px,5vw,48px);margin:0 0 16px}
.academy-hero p{font-size:18px;color:var(--fg-mut);max-width:680px;margin:0 auto}
.levels-toggle{display:flex;gap:10px;justify-content:center;margin:32px 0 16px}
.level-btn{padding:10px 22px;border-radius:20px;background:#fff;color:var(--fg);text-decoration:none;font-weight:600;border:2px solid var(--border);transition:all 0.15s}
.level-btn:hover{border-color:var(--brand)}
.level-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}

.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:32px}
.topic-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:all 0.2s;text-decoration:none;color:var(--fg);display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow-sm)}
.topic-card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--shadow-md);color:var(--fg)}
.topic-card .topic-icon{font-size:42px;line-height:1}
.topic-card h3{font-size:22px;margin:0}
.topic-card p{font-size:15px;color:var(--fg-mut);margin:0;flex:1}
.topic-card .topic-links{display:flex;gap:10px;margin-top:8px}
.topic-card .topic-links a{background:var(--brand-light);color:var(--brand);padding:6px 14px;border-radius:6px;font-size:13px;font-weight:600;text-decoration:none;transition:all 0.15s}
.topic-card .topic-links a:hover{background:var(--brand);color:#fff}

/* Article (tema individual) */
.article{max-width:820px;margin:0 auto;padding:40px 24px 80px;line-height:1.75;font-size:17px}
.article .breadcrumb{font-size:13px;color:var(--fg-mut);margin:0 0 12px}
.article .breadcrumb a{color:var(--fg-mut)}
.article .article-header{margin:0 0 32px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.article h1{font-size:clamp(32px,4vw,44px);margin:0 0 12px;color:var(--fg)}
.article .subtitle{color:var(--fg-mut);font-size:18px;margin:0}
.article .level-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:13px;font-weight:700;margin-bottom:12px;letter-spacing:0.5px;text-transform:uppercase}
.article .level-badge.novato{background:#dcedc8;color:#33691e}
.article .level-badge.avanzado{background:#ffecb3;color:#e65100}

.article h2{font-size:28px;margin:40px 0 16px;color:var(--fg);border-left:4px solid var(--brand);padding-left:16px;padding-bottom:0;border-bottom:none}
.article h3{font-size:22px;margin:32px 0 12px;color:var(--fg)}
.article p{margin:0 0 18px;color:var(--fg)}
.article ul,.article ol{margin:0 0 18px;padding-left:28px}
.article li{margin:6px 0}
.article strong{color:var(--fg);font-weight:700}
.article code{background:#f5f5f5;padding:2px 6px;border-radius:4px;font-size:15px;color:#c44d1a}
.article pre{background:#f5f5f5;padding:16px;border-radius:8px;overflow-x:auto;margin:20px 0}
.article blockquote{border-left:4px solid var(--brand);padding:8px 20px;margin:24px 0;background:var(--brand-light);border-radius:0 8px 8px 0;color:var(--fg)}
.article blockquote p{margin:4px 0}
.article table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article table th{background:#f5f5f5;padding:10px 14px;text-align:left;border-bottom:2px solid var(--border)}
.article table td{padding:10px 14px;border-bottom:1px solid var(--border)}
.article table tr:hover{background:#fafafa}
.article hr{border:0;border-top:1px solid var(--border);margin:40px 0}

.level-switcher{background:var(--brand-light);border:1px solid var(--brand);border-radius:var(--radius);padding:16px 20px;margin:0 0 32px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.level-switcher p{margin:0;color:var(--fg);font-size:14px}
.level-switcher a.switch-btn{background:var(--brand);color:#fff;padding:8px 18px;border-radius:6px;text-decoration:none;font-weight:600;font-size:14px}
.level-switcher a.switch-btn:hover{background:var(--brand-dark);color:#fff}

/* Article nav prev/next */
.article-nav{display:flex;justify-content:space-between;margin:60px 0 0;padding-top:24px;border-top:1px solid var(--border);gap:12px;flex-wrap:wrap}
.article-nav a{flex:1;min-width:200px;padding:16px 20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--fg);transition:all 0.15s}
.article-nav a:hover{border-color:var(--brand);color:var(--fg)}
.article-nav small{display:block;font-size:12px;color:var(--fg-mut);text-transform:uppercase;letter-spacing:0.5px;margin-bottom:4px}
.article-nav strong{color:var(--brand)}