:root{--bg-primary: #1a1a1a;--bg-secondary: #2d2d2d;--bg-nav: #252525;--bg-hover: #3a3a3a;--text-primary: #e0e0e0;--text-secondary: #b0b0b0;--border-color: #404040;--accent: #4a9eff;--accent-hover: #6bb3ff;--success: #4caf50;--warning: #ff9800;--error: #f44336;--text-size-multiplier: 1}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-nav: #fafafa;--bg-hover: #e8e8e8;--text-primary: #1a1a1a;--text-secondary: #666666;--border-color: #e0e0e0;--accent: #1976d2;--accent-hover: #1565c0}[data-theme=blue]{--bg-primary: #0d1b2a;--bg-secondary: #1b263b;--bg-nav: #415a77;--bg-hover: #2d4a6e;--text-primary: #e0e1dd;--text-secondary: #b8b9b5;--border-color: #415a77;--accent: #4a9eff;--accent-hover: #6bb3ff}[data-theme=green]{--bg-primary: #1a2e1a;--bg-secondary: #2d4a2d;--bg-nav: #3d5a3d;--bg-hover: #4a6a4a;--text-primary: #e0f0e0;--text-secondary: #b8d0b8;--border-color: #3d5a3d;--accent: #4caf50;--accent-hover: #66bb6a}[data-theme=orange]{--bg-primary: #2b1d12;--bg-secondary: 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option{font-size:1rem}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #4a9eff1a}code{font-family:Courier New,monospace;background-color:var(--bg-secondary);padding:.2rem .4rem;border-radius:4px;font-size:.9em}.btn-primary{background-color:var(--accent);color:#fff}.btn-primary:hover{background-color:var(--accent-hover)}.btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--bg-hover)}.btn-danger{background-color:var(--error);color:#fff}.btn-danger:hover{background-color:#d32f2f}.btn-ghost{background-color:transparent;color:var(--text-primary)}.btn-ghost:hover{background-color:var(--bg-hover)}.btn-small{padding:.5rem 1rem;font-size:.875rem;min-height:36px}.btn-large{padding:1rem 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ease}@media(max-width:768px){.nav-overlay{display:block}.nav-column{z-index:999}}.add-video-header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:1rem 2rem;position:sticky;top:0;z-index:100}.add-video-header-content{display:flex;align-items:center;gap:1rem}.hamburger-button{display:none;flex-direction:column;justify-content:space-around;width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:10px;z-index:101;transition:transform .3s ease;flex-shrink:0}.hamburger-button:hover{transform:scale(1.1)}.hamburger-button:active{transform:scale(.95)}.hamburger-line{width:24px;height:3px;background-color:var(--text-primary);border-radius:2px;transition:all .3s ease}@media(max-width:768px){.hamburger-button{display:flex}}.add-video-form{display:flex;gap:1rem;max-width:800px;margin:0 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img{filter:grayscale(0%)}.video-card-dnf{border-left:4px solid var(--error, #ef4444)!important;background:linear-gradient(to bottom,rgba(239,68,68,.08) 0%,transparent 100%);opacity:.6;transition:opacity .2s ease,transform .2s,box-shadow .2s!important}.video-card-dnf:hover{opacity:1}.video-card-dnf .video-thumbnail-container img{filter:grayscale(40%);transition:filter .2s ease}.video-card-dnf:hover .video-thumbnail-container img{filter:grayscale(0%)}.watched-tag-indicator{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;background:var(--success-color, #10b981);color:#fff;border-radius:50%;font-size:12px;font-weight:700;margin-left:8px;flex-shrink:0;box-shadow:0 0 5px #0003}.video-card-favorite{border-left:4px solid var(--warning-color, #f59e0b)!important}.video-favorite-indicator{color:var(--warning-color, #f59e0b);font-size:16px;margin-left:6px;flex-shrink:0}.video-favorite-button{min-width:120px}.video-card-content-wrapper{display:flex;flex-direction:column;height:100%}.video-card-link{display:block;text-decoration:none;color:inherit}.video-thumbnail-container{position:relative;width:100%;padding-top:56.25%;background-color:var(--bg-primary);overflow:hidden}.video-thumbnail-link{position:absolute;top:0;left:0;width:100%;height:100%;display:block;text-decoration:none}.video-thumbnail{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.video-duration{position:absolute;bottom:.5rem;right:.5rem;background-color:#000c;color:#fff;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:500}.video-play-button{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:4rem;height:4rem;border-radius:50%;background-color:#000000b3;border:3px solid 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