@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--bg-main:#f8fafc;--bg-card:#fff;--bg-input:#f1f5f9;--bg-input-hover:#e2e8f0;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--primary:#3b82f6;--primary-hover:#2563eb;--primary-text:#fff;--success:#10b981;--danger:#ef4444;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--radius-md:.5rem;--radius-lg:1rem;--radius-full:9999px;--transition:all .2s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--bg-main:#020617;--bg-card:#0f172a;--bg-input:#1e293b;--bg-input-hover:#334155;--text-main:#f8fafc;--text-muted:#94a3b8;--border-color:#1e293b;--primary:#3b82f6;--primary-hover:#60a5fa;--shadow-sm:0 1px 2px 0 #00000080;--shadow-md:0 4px 6px -1px #00000080, 0 2px 4px -2px #00000080;--shadow-lg:0 10px 15px -3px #00000080, 0 4px 6px -4px #00000080}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;transition:background-color var(--transition), color var(--transition);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.5rem}.text-center{text-align:center}.text-primary{color:var(--primary)}.text-muted{color:var(--text-muted)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.gap-8{gap:2rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-8{margin-top:2rem}.mt-12{margin-top:3rem}.mb-4{margin-bottom:1rem}.mb-8{margin-bottom:2rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-8{padding-top:2rem;padding-bottom:2rem}.py-16{padding-top:4rem;padding-bottom:4rem}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);border:none;outline:none;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-family:inherit;font-size:1rem;font-weight:600;display:inline-flex}.btn:disabled{opacity:.6;cursor:not-allowed}.btn:active:not(:disabled){transform:scale(.97)}.btn-primary{background-color:var(--primary);color:var(--primary-text);box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-1px)}.btn-outline{border:1px solid var(--border-color);color:var(--text-main);background-color:#0000}.btn-outline:hover:not(:disabled){background-color:var(--bg-input)}.card{background-color:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border-color);transition:var(--transition);padding:1.5rem}.input{background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-main);transition:var(--transition);outline:none;padding:1rem 1.25rem;font-family:inherit;font-size:1rem}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f633}.input::placeholder{color:var(--text-muted)}.header{z-index:50;background-color:var(--bg-main);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background-color:rgba(var(--bg-main), .8);padding:1rem 0;position:sticky;top:0}.logo{cursor:pointer;transition:var(--transition);outline:none}.logo:hover,.logo:focus-visible{transform:scale(1.05)}.logo:active{opacity:.7;transform:scale(.97)}.logo-text{letter-spacing:-.025em;font-size:1.25rem;font-weight:800}.nav-desktop{gap:1.5rem;display:none}@media (width>=768px){.nav-desktop{display:flex}}.nav-desktop a{color:var(--text-muted);transition:var(--transition);font-weight:500;text-decoration:none}.nav-desktop a:hover{color:var(--text-main)}.theme-toggle{color:var(--text-main);cursor:pointer;border-radius:var(--radius-md);transition:var(--transition);background:0 0;border:none;padding:.5rem}.theme-toggle:hover{background-color:var(--bg-input)}.hero-section{text-align:center;flex-direction:column;align-items:center;max-width:800px;margin:0 auto;padding:4rem 1.5rem;display:flex}.hero-title{letter-spacing:-.025em;margin-bottom:1rem;font-size:2.5rem;font-weight:800;line-height:1.2}@media (width>=768px){.hero-title{font-size:3.5rem}}.hero-subtitle{color:var(--text-muted);max-width:600px;margin-bottom:2.5rem;font-size:1.125rem}.url-input-container{width:100%;max-width:640px;margin:0 auto}.url-form{flex-direction:column;gap:1rem;display:flex}@media (width>=640px){.url-form{flex-direction:row}}.input-wrapper{flex-grow:1;position:relative}.input-icon{color:var(--text-muted);position:absolute;top:50%;left:1rem;transform:translateY(-50%)}.url-input{height:3.5rem;padding-left:3rem;font-size:1.125rem}.analyze-btn{white-space:nowrap;min-width:140px;height:3.5rem}@keyframes spin{to{transform:rotate(360deg)}}.error-text{color:var(--danger);text-align:left;font-size:.875rem}.helper-text{color:var(--text-muted);text-align:left;font-size:.875rem}.video-info-card{max-width:800px;margin:0 auto}.video-info-content{flex-direction:column;gap:1.5rem;display:flex}@media (width>=640px){.video-info-content{flex-direction:row}}.video-thumbnail-container{border-radius:var(--radius-md);flex-shrink:0;width:100%;max-width:320px;position:relative;overflow:hidden}.video-thumbnail{aspect-ratio:16/9;object-fit:cover;width:100%;height:auto;display:block}.video-duration{color:#fff;border-radius:var(--radius-sm);background-color:#000c;padding:.125rem .5rem;font-size:.75rem;font-weight:600;position:absolute;bottom:.5rem;right:.5rem}.video-details{flex-grow:1}.video-title{font-size:1.25rem;font-weight:700;line-height:1.4}.platform-badge{background-color:var(--bg-input);border-radius:var(--radius-full);text-transform:capitalize;padding:.25rem .75rem;font-size:.75rem;font-weight:600}.format-selector{max-width:800px;margin:2rem auto}.format-category{margin-bottom:2rem}.format-category-title{border-bottom:1px solid var(--border-color);margin-bottom:1rem;padding-bottom:.5rem;font-size:1.125rem;font-weight:600}.format-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;display:grid}.format-card{background-color:var(--bg-card);border:2px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);padding:1rem;position:relative}.format-card:hover{border-color:var(--primary-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}.format-card:active{transform:scale(.97)}.format-card.selected{border-color:var(--primary);background-color:#3b82f60d}.recommended-badge{background-color:var(--primary);color:#fff;border-radius:var(--radius-full);padding:.125rem .5rem;font-size:.65rem;font-weight:700;position:absolute;top:-.5rem;right:-.5rem}.format-info{justify-content:space-between;align-items:center;font-weight:600;display:flex}.format-ext{background-color:var(--bg-input);border-radius:var(--radius-sm);padding:.125rem .375rem;font-size:.75rem}.download-progress-card{max-width:600px;margin:0 auto}.spinner{animation:1s linear infinite spin}@keyframes indeterminate-slide{0%{transform:translate(-100%)}to{transform:translate(400%)}}.progress-bar-indeterminate{animation:1.6s ease-in-out infinite indeterminate-slide;width:25%!important}