:root{--bg: #0d0d0d;--surface: #151515;--surface2: #1c1c1c;--border: #2a2a2a;--text: #f5f5f5;--muted: #9a9a9a;--accent: #ff9000;--accent-hover: #ffaa33;--danger: #e53935;--radius: 4px;font-family:Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:none;border-radius:var(--radius)}input,textarea,select{font:inherit;color:var(--text);background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);padding:.5rem .75rem}input:focus,textarea:focus,select:focus{outline:1px solid var(--accent)}.app-header{background:var(--surface);border-bottom:2px solid var(--accent);position:sticky;top:0;z-index:100}.app-header-inner{max-width:1400px;margin:0 auto;padding:.65rem 1.25rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.brand{font-weight:800;font-size:1.35rem;letter-spacing:-.02em;color:var(--text);white-space:nowrap}.brand span{color:var(--accent)}.search-wrap{flex:1;min-width:180px;max-width:520px}.search-wrap input{width:100%;padding:.55rem 1rem;border-radius:999px;background:#0a0a0a;border:1px solid #333}.menu-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:transparent;color:var(--text);border:1px solid transparent;border-radius:var(--radius);font-size:1.25rem;line-height:1}.menu-btn:hover{background:var(--surface2)}@media(min-width:768px){.menu-btn{display:none}}.header-actions{display:flex;align-items:center;gap:.5rem;margin-left:auto}.btn{padding:.5rem 1rem;font-weight:600;font-size:.9rem}.btn-accent{background:var(--accent);color:#111}.btn-accent:hover{background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.app-root{min-height:100%;display:flex;flex-direction:column}.app-body{flex:1;display:flex;max-width:1600px;margin:0 auto;width:100%;min-height:0}.sidebar{width:220px;flex-shrink:0;padding:.75rem 0;border-right:1px solid var(--border);background:var(--surface)}.sidebar-nav{display:flex;flex-direction:column;gap:.15rem;padding:0 .5rem}.sidebar-link{display:block;padding:.55rem .85rem;border-radius:var(--radius);color:var(--text);text-decoration:none;font-size:.95rem;font-weight:500}.sidebar-link:hover{background:var(--surface2);text-decoration:none}.sidebar-link.active{background:var(--surface2);color:var(--accent)}@media(max-width:767px){.sidebar{position:fixed;top:56px;left:0;bottom:0;z-index:95;transform:translate(-100%);transition:transform .15s ease;padding-top:1rem}.sidebar.sidebar-open{transform:translate(0)}.sidebar-backdrop{position:fixed;top:56px;right:0;bottom:0;left:0;z-index:90;background:#0000008c;border:none;cursor:pointer;padding:0}}@media(min-width:768px){.sidebar-backdrop{display:none}.sidebar{transform:none!important}}.main-wrap{flex:1;min-width:0;max-width:1400px;margin:0 auto;padding:1.25rem;width:100%}.page-title{font-size:1.15rem;font-weight:700;margin:0 0 .75rem}.section-heading{font-size:1rem;font-weight:600;margin:0 0 1rem;color:var(--text)}.home-footnote{margin-top:2rem;padding-top:1rem;border-top:1px solid var(--border);font-size:.8rem}.muted{color:var(--muted);font-size:.9rem}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.video-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .15s,transform .15s}.video-card:hover{border-color:#444;transform:translateY(-2px)}.video-card a{display:block;color:inherit;text-decoration:none}.video-thumb{aspect-ratio:16 / 9;background:#000;position:relative;overflow:hidden}.video-thumb img{width:100%;height:100%;object-fit:cover}.video-meta{padding:.65rem .75rem}.video-title{font-weight:600;font-size:.95rem;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-sub{font-size:.8rem;color:var(--muted);margin-top:.25rem}.watch-layout{max-width:1280px;margin:0 auto}.player-wrap{background:#000;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}.player-wrap iframe{display:block;width:100%;aspect-ratio:16 / 9;border:none}.watch-title{font-size:1.35rem;font-weight:700;margin:1rem 0 .5rem}.upload-panel{max-width:560px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.upload-panel h2{margin-top:0;font-size:1.1rem}.upload-panel label{display:block;margin-top:1rem;font-size:.85rem;color:var(--muted)}.upload-panel input[type=file]{margin-top:.35rem;width:100%}.err{color:var(--danger);font-size:.9rem;margin-top:.5rem}.success{color:#81c784}.skeleton{background:linear-gradient(90deg,#222 25%,#2a2a2a,#222 75%);background-size:200% 100%;animation:sk 1.2s ease-in-out infinite}@keyframes sk{0%{background-position:200% 0}to{background-position:-200% 0}}