.course-page[data-astro-cid-eflxn2nx]{padding:4rem 0 6rem}.course-header[data-astro-cid-eflxn2nx]{text-align:center;margin-bottom:4rem}.header-badges[data-astro-cid-eflxn2nx]{display:flex;align-items:center;justify-content:center;gap:.75rem;margin-bottom:1.5rem}.volume-badge[data-astro-cid-eflxn2nx]{font-family:JetBrains Mono,monospace;font-size:.8rem;font-weight:600;padding:6px 14px;background:#00d4ff1a;border:1px solid rgba(0,212,255,.3);border-radius:var(--radius-sm);color:var(--accent-cyan)}.course-title[data-astro-cid-eflxn2nx]{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;margin-bottom:.5rem;background:linear-gradient(135deg,var(--accent-cyan) 0%,var(--accent-green) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.course-subtitle[data-astro-cid-eflxn2nx]{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto 2rem}.course-stats[data-astro-cid-eflxn2nx]{display:flex;justify-content:center;gap:3rem;padding:1.5rem 2rem;background:#ffffff05;border:1px solid var(--border-subtle);border-radius:var(--radius-lg);max-width:500px;margin:0 auto 1.5rem}.stat[data-astro-cid-eflxn2nx]{display:flex;flex-direction:column;align-items:center}.stat-value[data-astro-cid-eflxn2nx]{font-family:JetBrains Mono,monospace;font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--accent-cyan) 0%,var(--accent-green) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label[data-astro-cid-eflxn2nx]{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.vol-link[data-astro-cid-eflxn2nx]{margin-top:1rem}.vol-link[data-astro-cid-eflxn2nx] a[data-astro-cid-eflxn2nx]{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:#ffffff08;border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:all var(--transition-fast)}.vol-link[data-astro-cid-eflxn2nx] a[data-astro-cid-eflxn2nx]:hover{background:#8b5cf61a;border-color:var(--accent-purple);color:var(--text-primary)}.parts-list[data-astro-cid-eflxn2nx]{display:flex;flex-direction:column;gap:2rem;max-width:900px;margin:0 auto}.part-card[data-astro-cid-eflxn2nx]{overflow:hidden;border-color:#00d4ff26}.part-card[data-astro-cid-eflxn2nx]:hover{border-color:#00d4ff4d}.part-header[data-astro-cid-eflxn2nx]{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-subtle);flex-wrap:wrap}.part-number[data-astro-cid-eflxn2nx]{font-family:JetBrains Mono,monospace;font-size:.8rem;font-weight:600;padding:6px 14px;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-green));border-radius:var(--radius-sm);color:#fff}.part-title[data-astro-cid-eflxn2nx]{font-size:1.3rem;font-weight:700;flex:1;min-width:200px}.part-quote[data-astro-cid-eflxn2nx]{font-size:.85rem;color:var(--text-muted);font-style:italic}.lecture-list[data-astro-cid-eflxn2nx]{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.75rem}.lecture-item[data-astro-cid-eflxn2nx]{border-radius:var(--radius-sm);overflow:hidden}.lecture-link[data-astro-cid-eflxn2nx]{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;background:#ffffff05;border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--transition-fast);text-decoration:none}.lecture-link[data-astro-cid-eflxn2nx]:hover{background:#00d4ff14;border-color:#00d4ff4d;transform:translate(8px)}.lecture-number[data-astro-cid-eflxn2nx]{font-family:JetBrains Mono,monospace;font-size:.8rem;color:var(--accent-cyan);min-width:3rem}.lecture-info[data-astro-cid-eflxn2nx]{flex:1;display:flex;flex-direction:column;gap:.25rem}.lecture-title[data-astro-cid-eflxn2nx]{color:var(--text-primary);font-size:.95rem;font-weight:500}.lecture-desc[data-astro-cid-eflxn2nx]{color:var(--text-muted);font-size:.8rem}.lecture-arrow[data-astro-cid-eflxn2nx]{color:var(--text-muted);opacity:0;transform:translate(-5px);transition:all var(--transition-fast)}.lecture-link[data-astro-cid-eflxn2nx]:hover .lecture-arrow[data-astro-cid-eflxn2nx]{opacity:1;transform:translate(0);color:var(--accent-cyan)}.quick-start[data-astro-cid-eflxn2nx]{position:fixed;bottom:2rem;right:2rem;display:flex;align-items:center;gap:.75rem;padding:1rem 1.75rem;background:linear-gradient(135deg,var(--accent-cyan),var(--accent-green));border-radius:50px;color:#fff;font-weight:600;text-decoration:none;box-shadow:0 8px 30px #00d4ff4d;transition:all var(--transition-fast);z-index:100}.quick-start[data-astro-cid-eflxn2nx]:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 40px #00d4ff66}@media(max-width:768px){.part-header[data-astro-cid-eflxn2nx]{flex-direction:column;align-items:flex-start}.part-quote[data-astro-cid-eflxn2nx]{margin-top:.5rem}.lecture-link[data-astro-cid-eflxn2nx]{flex-direction:column;align-items:flex-start;gap:.5rem}.lecture-info[data-astro-cid-eflxn2nx]{width:100%}.lecture-desc[data-astro-cid-eflxn2nx]{display:block}.course-stats[data-astro-cid-eflxn2nx]{gap:2rem;flex-wrap:wrap}.quick-start[data-astro-cid-eflxn2nx]{bottom:1rem;right:1rem;padding:.875rem 1.5rem;font-size:.9rem}}