:root{--text:#e5e7eb;--text-h:#fff;--bg:#0f1115;--surface:#111827d1;--surface-2:#ffffff0a;--surface-strong:#111827eb;--surface-elevated:#0f172af5;--surface-border:#ffffff14;--chip-surface:#ffffff12;--chip-border:#ffffff24;--chip-text:#f9fafb;--muted-text:#d1d5db;--border:#2a2f37;--code-bg:#111827;--accent:red;--accent-bg:#ff000029;--accent-border:#ff000080;--social-bg:#11182799;--shadow:#00000059 0 10px 15px -3px, #00000040 0 4px 6px -2px;--sans:Inter, "Segoe UI", Roboto, Arial, sans-serif;--heading:Inter, "Segoe UI", Roboto, Arial, sans-serif;--mono:ui-monospace, Consolas, monospace;font:16px/1.5 var(--sans);letter-spacing:.01em;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (width<=1024px){:root{font-size:16px}}body{background:var(--bg);min-width:320px;margin:0}[data-color-mode=light] :root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-color-mode=light]{--text:#1f1f23;--text-h:#08060d;--bg:#f4f5f8;--surface:#ffffffe6;--surface-2:#ffffffb8;--surface-strong:#fffffff5;--surface-elevated:#fffffffa;--surface-border:#00000014;--chip-surface:#ffffffeb;--chip-border:#00000014;--chip-text:#1f1f23;--muted-text:#4b5563;--border:#e5e4e7;--code-bg:#f4f3ec;--accent-bg:#ff00001a;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px}:root[data-color-mode=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-color-mode=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-era=old-school]{--app-accent:red;--app-accent-2:#00428a;--app-surface:#fff;--app-text:#111}[data-era=golden-age]{--app-accent:red;--app-accent-2:#333;--app-surface:#fafafa;--app-text:#212121}[data-era=modern]{--app-accent:red;--app-accent-2:#1a73e8;--app-surface:#f9f9f9;--app-text:#202124}#root{max-width:100%;min-height:100svh}h1,h2,h3{font-family:var(--heading);color:var(--text-h);font-weight:700}p{margin:0}button{font:inherit}.era-selector{text-align:center;gap:16px;padding:10px 0 0;display:grid}.section-heading{gap:6px;display:grid}.section-heading h2{margin:0;font-size:clamp(1.4rem,2vw,2rem)}.subtitle{color:var(--muted-text,color-mix(in srgb, var(--app-text,#202124) 68%, #fff));font-size:1rem}.theme-strip{gap:14px;display:grid}.theme-heading{justify-items:center}.theme-heading h3{margin:0;font-size:1.15rem}.theme-grid{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.theme-chip{border:1px solid var(--chip-border,var(--surface-border,#00000014));background:var(--chip-surface,var(--surface,#ffffffeb));color:var(--chip-text,var(--app-text,#202124));cursor:pointer;border-radius:999px;padding:10px 14px;font-weight:700;box-shadow:0 8px 18px #0000001f}.theme-chip.active{background:var(--app-accent,red);color:#fff;border-color:#0000}.theme-chip:focus-visible{outline:3px solid color-mix(in srgb, var(--app-accent,red) 72%, white);outline-offset:2px}.era-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.custom-era-panel{background:var(--surface,#ffffffd1);border:1px solid var(--surface-border,#00000012);border-radius:18px;justify-content:space-between;align-items:center;gap:14px;padding:18px 20px;display:flex;box-shadow:0 12px 28px #0000000f}.custom-era-copy{text-align:left}.custom-era-copy h3{margin:0 0 4px;font-size:1.05rem}.custom-era-copy p{color:var(--muted-text,color-mix(in srgb, var(--app-text,#202124) 72%, #fff))}.custom-era-toggle,.custom-era-submit{cursor:pointer;background:var(--app-accent,red);color:#fff;border:0;border-radius:999px;padding:11px 16px;font-weight:700;box-shadow:0 10px 20px #0000001f}[data-color-mode=dark] .theme-chip{color:#e5e7eb;background:#ffffff14;border-color:#ffffff2e}[data-color-mode=dark] .theme-chip.active{background:var(--app-accent,red);border-color:color-mix(in srgb, var(--app-accent,red) 80%, white);color:#fff}[data-color-mode=dark] .custom-era-toggle,[data-color-mode=dark] .custom-era-submit{box-shadow:0 10px 24px #00000042}.custom-era-form{background:var(--surface,#ffffffe6);border:1px solid var(--surface-border,#00000012);border-radius:18px;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding:16px;display:grid;box-shadow:0 12px 28px #0000000f}.custom-era-form label{text-align:left;color:var(--app-text,#202124);gap:6px;font-size:.9rem;display:grid}.custom-era-form input{box-sizing:border-box;border:1px solid var(--surface-border,#0000001f);background:var(--surface-strong,#fff);width:100%;color:var(--app-text,#202124);border-radius:12px;padding:12px 14px}.custom-era-form input:focus-visible{outline:3px solid color-mix(in srgb, var(--app-accent,red) 72%, white);outline-offset:2px}.custom-era-submit{align-self:end}.era-card{appearance:none;text-align:left;cursor:pointer;width:100%;color:var(--era-text,#111827);background:radial-gradient(circle at top right, color-mix(in srgb, var(--era-secondary,#1d4ed8) 12%, transparent) 0%, transparent 36%), linear-gradient(180deg, color-mix(in srgb, var(--surface,var(--era-surface,#fff)) 92%, white) 0%, var(--surface-strong,#fffffff5) 100%);border:0;border:1px solid var(--surface-border,#00000014);border-top:5px solid color-mix(in srgb, var(--era-accent,red) 85%, white);border-radius:18px;gap:10px;min-height:100%;padding:18px;transition:transform .18s,box-shadow .18s,border-color .18s;display:grid;box-shadow:0 10px 28px #00000014}.era-card:hover{transform:translateY(-2px);box-shadow:0 14px 34px #0000001f}.era-card.active{background:radial-gradient(circle at top right, color-mix(in srgb, var(--era-secondary,#1d4ed8) 18%, transparent) 0%, transparent 36%), linear-gradient(180deg, color-mix(in srgb, var(--surface,var(--era-surface,#fff)) 84%, white) 0%, var(--surface-elevated,#fffffffa) 100%);box-shadow:0 0 0 3px color-mix(in srgb, var(--era-accent,red) 75%, white), 0 18px 36px #00000029}.era-card .era-kicker{background:color-mix(in srgb, var(--era-accent,red) 12%, var(--surface-strong,white));width:fit-content;color:color-mix(in srgb, var(--era-accent,red) 85%, var(--app-text,black));letter-spacing:.03em;text-transform:uppercase;border-radius:999px;padding:4px 10px;font-size:.82rem;font-weight:700;display:inline-flex}.era-header{gap:4px;display:grid}.era-header h3{margin:0;font-size:1.2rem}.description{color:var(--muted-text,color-mix(in srgb, var(--app-text,#202124) 76%, #fff));margin:0;font-size:.98rem;line-height:1.5}.era-card:focus-visible{outline:3px solid color-mix(in srgb, var(--era-accent,red) 80%, white);outline-offset:3px}@media (width<=960px){.era-grid{grid-template-columns:1fr}.custom-era-panel,.custom-era-form{flex-direction:column;grid-template-columns:1fr}.theme-grid{justify-content:flex-start}}.video-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.video-card{appearance:none;border:1px solid var(--surface-border,#00000014);background:var(--surface-strong,#fffffff5);text-align:left;width:100%;color:inherit;cursor:pointer;border-radius:18px;gap:12px;padding:12px;transition:transform .18s,box-shadow .18s,border-color .18s;display:grid;box-shadow:0 10px 26px #0000000f}.video-card:hover{transform:translateY(-2px);box-shadow:0 16px 34px #0000001a}.video-card.active{border-color:color-mix(in srgb, var(--app-accent,red) 65%, white);box-shadow:0 0 0 3px color-mix(in srgb, var(--app-accent,red) 55%, white), 0 18px 36px #0000001f}.video-card:focus-visible{outline:3px solid color-mix(in srgb, var(--app-accent,red) 80%, white);outline-offset:3px}.thumbnail-container{aspect-ratio:16/9;background:#101010;border-radius:14px;position:relative;overflow:hidden}.thumbnail-container img{object-fit:cover;width:100%;height:100%;display:block}.duration{color:#fff;letter-spacing:.02em;background:#000000d1;border-radius:8px;padding:4px 8px;font-size:.8rem;font-weight:700;position:absolute;bottom:10px;right:10px}.video-copy{gap:4px;display:grid}.video-copy h3{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:1rem;line-height:1.35;display:-webkit-box;overflow:hidden}.channel,.published{color:var(--muted-text,color-mix(in srgb, var(--app-text,#202124) 72%, #fff));font-size:.92rem}@media (width<=900px){.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=680px){.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=480px){.video-grid{grid-template-columns:1fr}}.player-shell{background:var(--surface-strong,#fffffff5);border:1px solid var(--surface-border,#0000000f);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:22px;gap:14px;padding:18px;display:grid;box-shadow:0 18px 44px #0000001f}.player-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.player-header h2{margin:0;font-size:clamp(1.15rem,1.7vw,1.5rem)}.player-meta{color:var(--muted-text,color-mix(in srgb, var(--app-text,#202124) 72%, #fff))}.player-badges{flex-wrap:wrap;gap:8px;display:flex}.player-controls{justify-items:end;gap:10px;display:grid}.player-actions{align-items:center;gap:8px;display:flex}.player-badges span{background:var(--surface-2,#0000000a);border-radius:999px;padding:6px 10px;font-size:.88rem}.player-popout{border:1px solid color-mix(in srgb, var(--app-accent,red) 28%, transparent);background:var(--surface-elevated,#fffffff5);color:var(--app-text,#202124);cursor:pointer;border-radius:999px;padding:8px 12px;font-size:.9rem;font-weight:700;transition:transform .16s,box-shadow .16s,background-color .16s}.player-popout:hover{transform:translateY(-1px);box-shadow:0 6px 16px #0000002e}.player-close{border:1px solid var(--surface-border,#0000001f);color:var(--app-text,#202124);cursor:pointer;background:0 0;border-radius:999px;padding:8px 12px;font-size:.9rem;font-weight:700;transition:transform .16s,box-shadow .16s,background-color .16s,border-color .16s}.player-close:hover{transform:translateY(-1px);box-shadow:0 6px 16px #00000024}.player-shell.is-popped-out .player-popout{background:var(--app-accent,red);color:#fff;border-color:#0000}.player-shell.is-popped-out .player-close{background:#0000000f}[data-color-mode=dark] .player-popout{background:color-mix(in srgb, var(--app-accent,red) 22%, #111827);border-color:color-mix(in srgb, var(--app-accent,red) 48%, transparent);color:#f9fafb}[data-color-mode=dark] .player-close{color:#e5e7eb;background:#ffffff0f;border-color:#ffffff29}[data-color-mode=dark] .player-shell.is-popped-out .player-popout{background:color-mix(in srgb, var(--app-accent,red) 72%, #111827);border-color:color-mix(in srgb, var(--app-accent,red) 45%, transparent);color:#fff}[data-color-mode=dark] .player-shell.is-popped-out .player-close{background:#ffffff1a;border-color:#fff3}[data-color-mode=dark] .player-popout:hover,[data-color-mode=dark] .player-close:hover{background:#ffffff2e}.player-shell.is-popped-out{border-radius:18px;padding:14px}.player-shell.is-popped-out .player-controls{justify-items:start;width:100%}.player-shell.is-popped-out .player-actions{justify-content:flex-start;width:100%}.player-shell.is-popped-out .player-header h2{font-size:1rem}.player-shell.is-popped-out .player-meta{font-size:.9rem}.player-shell.is-popped-out .player-badges span{padding:4px 8px;font-size:.78rem}.player-shell.is-popped-out .player-popout,.player-shell.is-popped-out .player-close{padding:6px 10px;font-size:.82rem}.player-container{aspect-ratio:16/9;background:var(--surface-elevated,#0f0f0f);border-radius:16px;width:100%;position:relative;overflow:hidden}.player-frame,.player-frame iframe{border:0;width:100%;height:100%}.player-frame.is-hidden{visibility:hidden}.player-frame iframe{display:block}.player-loading,.player-error{text-align:center;color:#f5f5f5;background:linear-gradient(#0f0f0fe6,#0f0f0ffa);place-items:center;padding:18px;display:grid;position:absolute;inset:0}.player-error{gap:10px}.player-error a{color:#fff;text-underline-offset:3px;text-decoration:underline}.player-placeholder{background:radial-gradient(circle at top, color-mix(in srgb, var(--app-accent,red) 12%, transparent), transparent 45%), linear-gradient(180deg, var(--surface-2,#ffffff0f), #0003);place-items:center;min-height:clamp(220px,42vw,520px);display:grid}.placeholder{color:var(--muted-text,#666);font-size:1rem}@media (width<=720px){.player-shell{padding:14px}.player-header{flex-direction:column}.player-controls{justify-items:start}.player-actions{width:100%}.player-actions .player-popout,.player-actions .player-close{text-align:center;flex:1}.player-shell.is-popped-out{padding:12px}}.app-shell{min-height:100svh;color:var(--app-text,#202124);background:radial-gradient(circle at top, color-mix(in srgb, var(--app-accent,red) 18%, transparent) 0%, transparent 42%), radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--app-accent-2,#1a73e8) 14%, transparent) 0%, transparent 34%), linear-gradient(180deg, #f8f9fa 0%, #eef1f4 100%);padding:24px 16px 32px}.app-shell header,.app-shell footer,.app-shell main{width:min(1200px,100%);margin:0 auto}.app-shell header{justify-content:center;align-items:center;gap:16px;margin-bottom:22px;display:flex}.brand-row{background:var(--surface,#ffffffd1);border:1px solid var(--surface-border,#0000000f);border-radius:999px;align-items:center;gap:14px;padding:12px 18px;display:inline-flex;box-shadow:0 10px 30px #00000014}.color-mode-toggle{border:1px solid color-mix(in srgb, var(--app-accent,red) 20%, transparent);background:var(--surface,#ffffffd1);color:var(--app-text,#202124);cursor:pointer;border-radius:999px;padding:11px 16px;font-weight:700;box-shadow:0 10px 24px #00000014}.color-mode-toggle:hover{transform:translateY(-1px)}.brand-mark{background:var(--app-accent,red);color:#fff;border-radius:50%;place-items:center;width:44px;height:44px;font-size:1rem;display:grid;box-shadow:0 8px 20px #ff00003d}.brand-row h1{letter-spacing:-.03em;margin:0;font-size:clamp(1.5rem,3vw,2.4rem)}.brand-row p{color:color-mix(in srgb, var(--app-text,#202124) 68%, #fff);margin:2px 0 0}.app-shell header p,.app-shell footer p,.era-info .description,.video-section .no-videos,.video-section .loading{color:color-mix(in srgb, var(--app-text,#202124) 72%, #fff)}.app-shell main{gap:22px;display:grid}.floating-player-dock{z-index:40;width:min(440px,100vw - 28px);position:fixed;bottom:18px;right:18px}.floating-player-dock .player-shell{box-shadow:0 22px 48px #00000047}.source-badge{z-index:30;color:color-mix(in srgb, var(--app-text,#202124) 78%, #fff);letter-spacing:.02em;opacity:.72;pointer-events:none;background:#ffffffd6;border:1px solid #00000014;border-radius:999px;padding:6px 10px;font-size:.72rem;font-weight:700;position:fixed;bottom:12px;left:14px}.source-badge:hover{opacity:.92}.video-section{gap:16px;min-height:120px;display:grid}.video-section>:first-child{margin-top:0}.video-section.scrollable>.video-grid{scrollbar-gutter:stable;max-height:min(72svh,780px);padding-right:4px;overflow:auto}.video-section.scrollable>.video-grid::-webkit-scrollbar{width:10px}.video-section.scrollable>.video-grid::-webkit-scrollbar-thumb{background:color-mix(in srgb, var(--app-accent,red) 30%, transparent);border-radius:999px}.video-section .loading,.video-section .no-videos,.video-section .error,.video-section .fallback-note{text-align:center;background:var(--surface-2,#ffffffb8);border-radius:16px;padding:18px 20px}.video-section .fallback-note{border:1px solid var(--surface-border,#00000014);margin-bottom:16px}.video-section .error{color:#8b1d1d;border:1px solid #f003}.video-section .api-note{background:color-mix(in srgb, var(--app-accent,red) 10%, white);border:1px solid color-mix(in srgb, var(--app-accent,red) 16%, white);color:color-mix(in srgb, var(--app-text,#202124) 82%, #fff);border-radius:16px;margin-bottom:12px;padding:14px 16px}.load-more-button{background:var(--app-accent,red);color:#fff;cursor:pointer;border:0;border-radius:999px;margin:18px auto 0;padding:12px 18px;font-weight:700;display:block;box-shadow:0 10px 20px #0000001f}.load-more-button:disabled{opacity:.72;cursor:progress}.app-shell :focus-visible{outline:3px solid color-mix(in srgb, var(--app-accent,red) 75%, white);outline-offset:3px}[data-color-mode=dark] .app-shell{color:#e5e7eb;background:radial-gradient(circle at top, color-mix(in srgb, var(--app-accent,red) 18%, transparent) 0%, transparent 42%), radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--app-accent-2,#1a73e8) 16%, transparent) 0%, transparent 34%), linear-gradient(180deg, #0f1115 0%, #161b22 100%)}[data-color-mode=dark] .brand-row,[data-color-mode=dark] .video-section .loading,[data-color-mode=dark] .video-section .no-videos,[data-color-mode=dark] .video-section .error,[data-color-mode=dark] .video-section .fallback-note,[data-color-mode=dark] .video-section .api-note,[data-color-mode=dark] .color-mode-toggle{background:var(--surface,#111827d1);border-color:var(--surface-border,#ffffff14);box-shadow:0 12px 28px #00000042}[data-color-mode=dark] .brand-row p,[data-color-mode=dark] .app-shell header p,[data-color-mode=dark] .app-shell footer p,[data-color-mode=dark] .video-section .no-videos,[data-color-mode=dark] .video-section .loading,[data-color-mode=dark] .video-section .fallback-note,[data-color-mode=dark] .video-section .api-note,[data-color-mode=dark] .color-mode-toggle{color:#d1d5db}[data-color-mode=dark] .brand-row{border:1px solid var(--surface-border,#ffffff14)}[data-color-mode=dark] .video-section .error{color:#fecaca;border-color:#f871714d}[data-color-mode=dark] .video-section .fallback-note{border-color:#ffffff14}[data-color-mode=dark] .source-badge{color:#d1d5db;background:#111827db;border-color:#ffffff1f}@media (width<=960px){.floating-player-dock{width:auto;bottom:12px;left:12px;right:12px}.video-section.scrollable>.video-grid{max-height:none;padding-right:0;overflow:visible}.source-badge{padding:5px 9px;font-size:.68rem;bottom:8px;left:10px}}footer{margin-top:8px;padding-bottom:8px}.error-boundary-shell{background:radial-gradient(circle at top,#ff000029 0%,#0000 45%),linear-gradient(#f8f9fa 0%,#eef1f4 100%);place-items:center;min-height:100svh;padding:24px;display:grid}.error-boundary-card{color:#202124;background:#fffffff2;border:1px solid #00000014;border-radius:22px;gap:14px;width:min(620px,100%);padding:26px;display:grid;box-shadow:0 24px 50px #00000024}.error-boundary-card h1{margin:0;font-size:clamp(1.4rem,3vw,2rem)}.error-boundary-card p{margin:0;line-height:1.55}.error-boundary-detail{background:#0000000a;border-radius:12px;padding:10px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem}.error-boundary-actions{flex-wrap:wrap;gap:10px;display:flex}.error-boundary-actions button{color:#fff;cursor:pointer;background:red;border:0;border-radius:999px;padding:10px 14px;font-weight:700}.error-boundary-actions button.secondary{color:#202124;background:#00000014}@media (prefers-color-scheme:dark){.error-boundary-shell{background:radial-gradient(circle at top,#f003 0%,#0000 45%),linear-gradient(#0f1115 0%,#161b22 100%)}.error-boundary-card{color:#e5e7eb;background:#111827f0;border-color:#ffffff1a}.error-boundary-detail{color:#d1d5db;background:#ffffff14}.error-boundary-actions button.secondary{color:#e5e7eb;background:#ffffff1f}}