*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--border: #30363d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--accent: #58a6ff;--accent-hover: #79b8ff;--accent-subtle: rgba(56, 139, 253, .15);--danger: #f85149;--warning: #d29922;--success: #3fb950;--radius: 8px;--radius-lg: 12px;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--transition: .15s ease}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans,Helvetica,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}#app{max-width:720px;margin:0 auto;padding:2rem 1.5rem;display:flex;flex-direction:column;min-height:100vh}header{text-align:center;margin-bottom:2.5rem}header h1{font-size:1.75rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.5rem}.subtitle{color:var(--text-secondary);font-size:.95rem;max-width:480px;margin:0 auto}main{flex:1}footer{text-align:center;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);color:var(--text-muted);font-size:.85rem}#extract-form{width:100%}.input-group{display:flex;gap:.5rem}.input-group input{flex:1;padding:.75rem 1rem;font-size:.95rem;font-family:inherit;color:var(--text-primary);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);outline:none;transition:border-color var(--transition)}.input-group input::placeholder{color:var(--text-muted)}.input-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}.input-group button{padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;font-family:inherit;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer;transition:background var(--transition);white-space:nowrap;display:flex;align-items:center;gap:.5rem}.input-group button:hover:not(:disabled){background:var(--accent-hover)}.input-group button:disabled{opacity:.6;cursor:not-allowed}.btn-loader{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{color:var(--danger);font-size:.85rem;margin-top:.5rem}#result-section{margin-top:2rem;display:flex;flex-direction:column;align-items:center;gap:1rem;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.status-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .85rem;font-size:.8rem;font-weight:500;border-radius:999px;line-height:1.4}.status-badge.auto-generated{background:#3fb95026;color:var(--success);border:1px solid rgba(63,185,80,.3)}.status-badge.custom-image{background:#d2992226;color:var(--warning);border:1px solid rgba(210,153,34,.3)}#preview-container{width:100%;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);background:var(--bg-secondary)}#preview-image{display:block;width:100%;height:auto}.download-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;font-family:inherit;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:background var(--transition),border-color var(--transition)}.download-btn:hover:not(:disabled){background:var(--border);border-color:var(--text-muted)}.download-btn:disabled{opacity:.6;cursor:not-allowed}.error-card{margin-top:2rem;padding:1.25rem 1.5rem;background:#f851491a;border:1px solid rgba(248,81,73,.3);border-radius:var(--radius-lg);text-align:center;animation:fadeIn .3s ease}.error-card p{color:var(--danger);font-size:.95rem;margin-bottom:1rem}.retry-btn{padding:.5rem 1rem;font-size:.85rem;font-weight:600;font-family:inherit;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:background var(--transition)}.retry-btn:hover{background:var(--border)}.hidden{display:none!important}@media(max-width:480px){#app{padding:1.5rem 1rem}header h1{font-size:1.35rem}.input-group{flex-direction:column}.input-group button{justify-content:center}}