@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap";
:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-glass:#1e293bb3;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-primary:#3b82f6;--accent-hover:#2563eb;--accent-glow:#3b82f680;--border-color:#ffffff1a;--highlight-word:#fcd34d;--furigana-color:#cbd5e1}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);flex-direction:column;min-height:100vh;font-family:Inter,Noto Sans JP,sans-serif;display:flex}.glass-panel{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;box-shadow:0 8px 32px #0000004d}.app-header{border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;background:#0f172acc;justify-content:space-between;align-items:center;padding:1.5rem 2rem;display:flex;position:sticky;top:0}.logo{background:linear-gradient(135deg,#60a5fa,#a855f7);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;font-size:1.5rem;font-weight:700}.dashboard-container{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:2rem}.hero-section{text-align:center;margin-bottom:4rem;padding:4rem 0}.hero-title{margin-bottom:1rem;font-size:3rem;font-weight:700}.hero-subtitle{color:var(--text-secondary);max-width:600px;margin:0 auto 2rem;font-size:1.1rem}.search-container{max-width:600px;margin:0 auto;display:flex;position:relative}.search-input{border:1px solid var(--border-color);color:#fff;background:#ffffff0d;border-radius:999px;outline:none;flex:1;padding:1rem 1.5rem;font-size:1rem;transition:all .3s}.search-input:focus{border-color:var(--accent-primary);box-shadow:0 0 15px var(--accent-glow);background:#ffffff1a}.search-btn{background:var(--accent-primary);color:#fff;cursor:pointer;border:none;border-radius:999px;padding:0 1.5rem;font-weight:600;transition:background .3s;position:absolute;top:6px;bottom:6px;right:6px}.search-btn:hover{background:var(--accent-hover)}.video-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;display:grid}.video-card{cursor:pointer;border-radius:12px;transition:transform .3s,box-shadow .3s;overflow:hidden}.video-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px #0006}.video-thumb{aspect-ratio:16/9;object-fit:cover;background:#2a2a2a;width:100%}.video-info{padding:1.25rem}.video-title{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:.5rem;font-size:1.1rem;font-weight:600;display:-webkit-box;overflow:hidden}.player-container{grid-template-columns:2fr 1fr;gap:2rem;margin-top:2rem;display:grid}.video-wrapper{aspect-ratio:16/9;background:#000;border-radius:12px;width:100%;position:relative;overflow:hidden;box-shadow:0 20px 40px #00000080}.youtube-iframe{border:none;width:100%;height:100%}.subtitles-overlay{text-align:center;pointer-events:none;flex-direction:column;align-items:center;display:flex;position:absolute;bottom:10%;left:5%;right:5%}.subtitle-line{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000b3;border-radius:8px;flex-wrap:wrap;justify-content:center;gap:4px;padding:.5rem 1.5rem;display:inline-flex}.kanji-text{color:#fff;font-size:1.5rem;font-weight:600;transition:color .1s}.kanji-text.active{color:var(--highlight-word);text-shadow:0 0 10px #fcd34d80}.transcript-panel{flex-direction:column;height:600px;padding:1.5rem;display:flex;overflow-y:auto}.transcript-line{cursor:pointer;border-radius:8px;flex-wrap:wrap;gap:4px;margin-bottom:.5rem;padding:1rem;transition:background .2s;display:flex}.transcript-line:hover{background:#ffffff0d}.transcript-line.active{border-left:3px solid var(--accent-primary);background:#3b82f626}.spinner{border:3px solid #ffffff1a;border-top:3px solid var(--accent-primary);border-radius:50%;width:24px;height:24px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width:900px){.player-container{grid-template-columns:1fr}}