*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #07070f;--surface: #0d0d1c;--surface-raised: #13132a;--border: rgba(255, 255, 255, .07);--border-focus: rgba(99, 148, 255, .5);--accent: #4f8eff;--accent-dim: rgba(79, 142, 255, .15);--accent-glow: rgba(79, 142, 255, .25);--text: #dde1f0;--text-muted: #6b6f8a;--text-strong: #f0f2ff;--success: #22c55e;--success-dim: rgba(34, 197, 94, .1);--error: #f87171;--error-dim: rgba(248, 113, 113, .1);--radius: 12px;--radius-sm: 8px;--transition: .18s ease;font-family:Inter,system-ui,-apple-system,sans-serif;font-size:15px;color:var(--text);background:var(--bg)}body{min-height:100vh;background:var(--bg);-webkit-font-smoothing:antialiased}input,button{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;outline:none}input{outline:none}a{color:var(--accent);text-decoration:none}::selection{background:var(--accent-dim);color:var(--text-strong)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--surface)}::-webkit-scrollbar-thumb{background:var(--surface-raised);border-radius:3px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:var(--bg)}.login-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,rgba(255,255,255,.045) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}.login-glow{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(79,142,255,.12) 0%,transparent 70%);pointer-events:none;top:50%;left:50%;transform:translate(-50%,-50%)}.login-card{position:relative;z-index:1;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:48px 44px;width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;gap:0;box-shadow:0 0 0 1px #4f8eff0d,0 32px 80px #0009;animation:card-in .4s ease both}@keyframes card-in{0%{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.login-icon-wrap{width:60px;height:60px;border-radius:16px;background:var(--accent-dim);border:1px solid rgba(79,142,255,.25);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:24px}.login-title{font-size:22px;font-weight:700;color:var(--text-strong);letter-spacing:-.3px;margin-bottom:8px}.login-sub{font-size:14px;color:var(--text-muted);margin-bottom:32px}.pw-wrap{position:relative;width:100%;margin-bottom:16px}.pw-input{width:100%;background:#0000004d;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-strong);padding:13px 44px 13px 16px;font-size:15px;letter-spacing:.05em;transition:border-color var(--transition),box-shadow var(--transition)}.pw-input::placeholder{color:var(--text-muted);letter-spacing:0}.pw-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.eye-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;color:var(--text-muted);display:flex;align-items:center;justify-content:center;padding:4px;border-radius:4px;transition:color var(--transition)}.eye-btn:hover{color:var(--text)}.login-error{width:100%;background:var(--error-dim);border:1px solid rgba(248,113,113,.25);border-radius:var(--radius-sm);color:var(--error);font-size:13px;padding:10px 14px;margin-bottom:16px;text-align:center}.login-btn{width:100%;margin-top:4px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;border-radius:var(--radius-sm);padding:13px;display:flex;align-items:center;justify-content:center;gap:8px;transition:background var(--transition),box-shadow var(--transition),opacity var(--transition);box-shadow:0 0 20px var(--accent-glow);min-height:48px}.login-btn:hover:not(:disabled){background:#6aa3ff;box-shadow:0 0 32px #4f8eff73}.login-btn:active:not(:disabled){background:#3a7de0}.login-btn:disabled{opacity:.45;cursor:default;box-shadow:none}.btn-spinner{display:inline-block;width:18px;height:18px;border:2.5px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.dl-layout{min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}.top-bar{display:flex;align-items:center;justify-content:space-between;padding:0 32px;height:60px;border-bottom:1px solid var(--border);background:#07070fd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10}.logo{display:flex;align-items:center;gap:10px;color:var(--text-strong);font-size:17px;letter-spacing:-.2px}.logo-icon,.logo-text strong{color:var(--accent)}.logout-btn{display:flex;align-items:center;gap:7px;background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:13px;padding:7px 14px;transition:color var(--transition),border-color var(--transition)}.logout-btn:hover{color:var(--text);border-color:#ffffff24}.dl-main{flex:1;max-width:780px;width:100%;margin:0 auto;padding:56px 24px 80px;display:flex;flex-direction:column;gap:32px}.dl-hero{display:flex;flex-direction:column;gap:12px}.quality-pill{display:inline-flex;align-items:center;gap:6px;background:var(--accent-dim);border:1px solid rgba(79,142,255,.2);border-radius:100px;color:var(--accent);font-size:12.5px;font-weight:600;padding:5px 14px;width:fit-content;letter-spacing:.02em;text-transform:uppercase}.dl-heading{font-size:30px;font-weight:700;color:var(--text-strong);letter-spacing:-.5px;line-height:1.2}.dl-sub{font-size:15px;color:var(--text-muted);max-width:520px;line-height:1.6}.url-form{display:flex;flex-direction:column;gap:12px}.url-row{display:flex;gap:10px;align-items:stretch}.url-input-wrap{flex:1;position:relative}.url-input{width:100%;height:52px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-strong);padding:0 48px 0 16px;font-size:14px;font-family:SF Mono,Fira Code,Fira Mono,monospace;transition:border-color var(--transition),box-shadow var(--transition)}.url-input::placeholder{color:var(--text-muted);font-family:Inter,system-ui,sans-serif}.url-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.paste-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;color:var(--text-muted);display:flex;align-items:center;justify-content:center;padding:4px;border-radius:4px;transition:color var(--transition)}.paste-btn:hover{color:var(--accent)}.fetch-btn{display:flex;align-items:center;gap:8px;padding:0 22px;height:52px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;font-weight:600;white-space:nowrap;transition:background var(--transition),border-color var(--transition),color var(--transition)}.fetch-btn:hover:not(:disabled){background:var(--surface-raised);border-color:#ffffff24;color:var(--text-strong)}.fetch-btn:disabled{opacity:.45;cursor:default}.form-error{background:var(--error-dim);border:1px solid rgba(248,113,113,.25);border-radius:var(--radius-sm);color:var(--error);font-size:13px;padding:10px 14px}.video-card{display:grid;grid-template-columns:260px 1fr;gap:28px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;animation:fade-up .35s ease both}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.thumbnail-col{flex-shrink:0}.thumbnail-wrap{position:relative;border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16 / 9;background:var(--surface-raised)}.thumbnail{width:100%;height:100%;object-fit:cover;display:block}.duration-badge{position:absolute;bottom:8px;right:8px;background:#000000bf;color:#fff;font-size:12px;font-weight:600;padding:3px 7px;border-radius:5px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.video-info-col{display:flex;flex-direction:column;gap:10px;min-width:0}.video-title{font-size:16px;font-weight:600;color:var(--text-strong);line-height:1.4;letter-spacing:-.1px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.video-meta{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:13px}.dot{opacity:.4}.quality-tag{display:inline-flex;align-items:center;gap:5px;background:var(--success-dim);border:1px solid rgba(34,197,94,.2);border-radius:6px;color:var(--success);font-size:12px;font-weight:600;padding:4px 10px;width:fit-content}.download-btn{display:flex;align-items:center;gap:9px;padding:12px 22px;background:var(--accent);border-radius:var(--radius-sm);color:#fff;font-size:14px;font-weight:600;margin-top:6px;width:fit-content;box-shadow:0 0 20px var(--accent-glow);transition:background var(--transition),box-shadow var(--transition)}.download-btn:hover{background:#6aa3ff;box-shadow:0 0 32px #4f8eff73}.download-btn:active{background:#3a7de0}.progress-area{margin-top:6px;display:flex;flex-direction:column;gap:8px}.progress-labels{display:flex;justify-content:space-between;font-size:13px;color:var(--text-muted)}.progress-pct{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}.progress-track{height:6px;background:var(--surface-raised);border-radius:100px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),#a78bfa);border-radius:100px;transition:width .4s ease;position:relative;overflow:hidden}.progress-fill:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.25) 50%,transparent 100%);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(200%)}}.ready-area{display:flex;align-items:center;gap:12px;background:var(--success-dim);border:1px solid rgba(34,197,94,.2);border-radius:var(--radius-sm);padding:12px 14px;margin-top:6px}.ready-check{flex-shrink:0;width:34px;height:34px;border-radius:50%;background:#22c55e26;border:1px solid rgba(34,197,94,.3);display:flex;align-items:center;justify-content:center;color:var(--success)}.ready-text-wrap{flex:1;min-width:0}.ready-title{font-size:13px;font-weight:600;color:var(--success)}.ready-filename{font-size:11.5px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.save-again-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-sm);background:var(--surface-raised);border:1px solid var(--border);color:var(--text-muted);transition:color var(--transition),border-color var(--transition)}.save-again-btn:hover{color:var(--text-strong);border-color:#ffffff24}.dl-error-area{display:flex;align-items:center;gap:12px;margin-top:6px;flex-wrap:wrap}.dl-error-msg{font-size:13px;color:var(--error);flex:1}.retry-btn{background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:13px;padding:7px 14px;transition:color var(--transition),border-color var(--transition)}.retry-btn:hover{color:var(--text);border-color:#ffffff24}.btn-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.2);border-top-color:currentColor;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 600px){.top-bar{padding:0 16px}.dl-main{padding:32px 16px 60px}.dl-heading{font-size:24px}.url-row{flex-direction:column}.fetch-btn{height:48px;justify-content:center}.video-card{grid-template-columns:1fr;gap:20px}.thumbnail-col{max-width:100%}}.app{min-height:100vh}