:root{--bg-primary:#121212;--bg-secondary:#080808;--bg-glass:#2323234d;--bg-glass-active:#23232399;--text-primary:#fff;--text-secondary:#a0a0a0;--text-tertiary:#717171;--accent:#245aca;--accent-hover:#2d6ae0;--border-separator:#ffffff1a;--border-glass:#ffffff14;--status-success:#22c55e;--status-warning:#f59e0b;--status-error:#ef4444}[data-theme=light]{--bg-primary:#f5f5f5;--bg-secondary:#fff;--bg-glass:#ffffffb3;--bg-glass-active:#ffffffe6;--text-primary:#111;--text-secondary:#666;--text-tertiary:#999;--accent:#245aca;--border-separator:#0000001a;--border-glass:#00000014}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{background:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Instrument Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}#root{flex-direction:column;justify-content:center;align-items:center;min-height:100vh;display:flex}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#ffffff40}@keyframes fade-in-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes pulse-ring{0%{box-shadow:0 0 #245aca66}70%{box-shadow:0 0 0 12px #245aca00}to{box-shadow:0 0 #245aca00}}@keyframes spin{to{transform:rotate(360deg)}}.animate-in{animation:.6s ease-out both fade-in-up}.app{width:100%;max-width:640px;margin:0 auto;padding:48px 16px 64px}.app.has-video{justify-content:flex-start}.header{text-align:center;margin-bottom:40px;animation:.6s ease-out both fade-in-up}.header__icon{background:var(--accent);color:#fff;border-radius:16px;justify-content:center;align-items:center;width:56px;height:56px;margin-bottom:16px;display:inline-flex}.header__title{letter-spacing:-.025em;margin-bottom:8px;font-size:36px;font-weight:500;line-height:1.1}.header__subtitle{color:var(--text-secondary);font-size:15px}.theme-toggle{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);border:none;border:1px solid var(--border-glass);width:40px;height:40px;color:var(--text-secondary);cursor:pointer;z-index:50;border-radius:50%;justify-content:center;align-items:center;transition:background .15s;display:flex;position:fixed;top:16px;right:16px}.theme-toggle:hover{background:var(--bg-glass-active);color:var(--text-primary)}.url-input-wrapper{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px)saturate(180%);backdrop-filter:blur(12px)saturate(180%);border:1px solid var(--border-glass);border-radius:9999px;align-items:center;gap:4px;padding:4px;transition:background .2s;animation:.6s ease-out .1s both fade-in-up;display:flex}.url-input-wrapper:focus-within{background:var(--bg-glass-active)}.url-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;padding:8px 16px;font-family:inherit;font-size:14px}.url-input::placeholder{color:var(--text-tertiary)}.btn-fetch{background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:9999px;align-items:center;gap:6px;padding:8px 20px;font-family:inherit;font-size:14px;font-weight:500;transition:background .15s,transform .4s cubic-bezier(.16,1,.3,1);display:flex}.btn-fetch:hover:not(:disabled){background:var(--accent-hover)}.btn-fetch:active:not(:disabled){transform:scale(.95)}.btn-fetch:disabled{opacity:.5;cursor:not-allowed}.btn-fetch .spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.6s linear infinite spin}.error-msg{text-align:center;color:var(--status-error);margin-top:16px;font-size:14px;animation:.4s ease-out both fade-in}.video-card{background:var(--bg-secondary);border-radius:18px;margin-top:24px;animation:.6s ease-out both fade-in-up;overflow:hidden}.video-card__thumb{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.video-card__body{padding:20px}.video-card__title{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px;font-size:16px;font-weight:500;line-height:1.4;display:-webkit-box;overflow:hidden}.video-card__meta{color:var(--text-secondary);align-items:center;gap:8px;font-size:13px;display:flex}.video-card__meta span{align-items:center;gap:4px;display:flex}.format-section{border-top:1px solid var(--border-separator);margin-top:20px;padding-top:20px}.format-tabs{gap:6px;margin-bottom:16px;display:flex}.format-tab{cursor:pointer;color:var(--text-secondary);background:#ffffff0d;border:none;border-radius:9999px;flex:1;padding:10px 12px;font-family:inherit;font-size:14px;font-weight:500;transition:all .15s}[data-theme=light] .format-tab{background:#0000000d}.format-tab:hover{color:var(--text-primary);background:#ffffff1a}[data-theme=light] .format-tab:hover{background:#00000014}.format-tab.active{background:var(--accent);color:#fff}.quality-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;margin-bottom:20px;display:grid}.quality-option{border:1px solid var(--border-separator);color:var(--text-primary);cursor:pointer;text-align:center;background:0 0;border-radius:12px;padding:12px;font-family:inherit;font-size:14px;font-weight:500;transition:all .15s}.quality-option:hover{border-color:var(--accent);background:#245aca14}.quality-option.active{border-color:var(--accent);color:#fff;background:#245aca26}.quality-option__label{font-size:14px;font-weight:500;display:block}.quality-option__sub{color:var(--text-tertiary);margin-top:2px;font-size:11px;display:block}.quality-option__size{color:var(--accent);margin-top:4px;font-size:12px;font-weight:500;display:block}.btn-download{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:9999px;justify-content:center;align-items:center;gap:8px;width:100%;padding:14px;font-family:inherit;font-size:15px;font-weight:500;transition:background .15s,transform .4s cubic-bezier(.16,1,.3,1);display:flex}.btn-download:hover:not(:disabled){background:var(--accent-hover)}.btn-download:active:not(:disabled){transform:scale(.98)}.btn-download:disabled{opacity:.5;cursor:not-allowed}.btn-download .spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.6s linear infinite spin}.progress-bar{background:#ffffff1a;border-radius:2px;width:100%;height:4px;margin-top:12px;overflow:hidden}.progress-bar__fill{background:var(--accent);border-radius:2px;height:100%;transition:width .3s}.progress-text{text-align:center;color:var(--text-secondary);margin-top:8px;font-size:13px}.footer{text-align:center;color:var(--text-tertiary);margin-top:48px;font-size:12px;animation:.6s ease-out .3s both fade-in}@media (width<=480px){.app{padding:32px 12px 48px}.header__title{font-size:28px}.quality-grid{grid-template-columns:repeat(2,1fr)}}