:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-input: #23263a;--border: #2e3250;--border-focus: #6c63ff;--text: #e2e8f0;--text-muted: #8892b0;--accent: #6c63ff;--accent-hover: #7c74ff;--danger: #ff6b6b;--success: #4ecdc4;--radius: 8px;--shadow: 0 4px 24px rgba(0, 0, 0, .4)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.6}h1{font-size:2rem;font-weight:700;color:var(--accent);letter-spacing:-.5px}h2{font-size:1.25rem;font-weight:600;margin-bottom:1rem;color:var(--text)}h3{font-size:1.05rem;font-weight:600;color:var(--text-muted);margin-bottom:.75rem}.app{max-width:900px;margin:0 auto;padding:2rem 1.5rem 4rem}.header{text-align:center;margin-bottom:2.5rem}.header p{color:var(--text-muted);margin-top:.5rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.5rem;box-shadow:var(--shadow)}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}@media (max-width: 600px){.field-grid{grid-template-columns:1fr}}.field-full{grid-column:1 / -1}.field{display:flex;flex-direction:column;gap:.35rem;position:relative}label{font-size:.85rem;font-weight:500;color:var(--text-muted);-webkit-user-select:none;user-select:none}input[type=text],input[type=email],input[type=date]{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:.95rem;padding:.55rem .85rem;transition:border-color .2s,box-shadow .2s;width:100%;outline:none}input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #6c63ff33}input.error{border-color:var(--danger)}.field-error{font-size:.78rem;color:var(--danger);min-height:1em}.tooltip-container{position:relative}.tooltip{position:absolute;top:calc(100% + 6px);left:0;z-index:100;background:#2d2f4a;border:1px solid var(--border-focus);border-radius:6px;padding:.55rem .9rem;font-size:.82rem;color:#a8b2d8;white-space:pre-wrap;max-width:320px;box-shadow:0 6px 20px #00000080;pointer-events:none;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}button{cursor:pointer;border:none;border-radius:var(--radius);font-size:.95rem;font-weight:500;padding:.6rem 1.2rem;transition:background .2s,transform .1s}button:active{transform:scale(.98)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-input);color:var(--text);border:1.5px solid var(--border)}.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}.btn-danger{background:transparent;color:var(--danger);border:1.5px solid var(--danger);padding:.4rem .85rem;font-size:.85rem}.btn-danger:hover{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#0f1117;font-weight:600}.btn-success:hover{filter:brightness(1.1)}.author-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.authors-list>*+*{margin-top:1.25rem}.add-author-row{margin-top:1rem;display:flex;gap:.75rem}.file-upload-box{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.file-name{font-size:.88rem;color:var(--text-muted);font-style:italic;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-name.ok{color:var(--success);font-style:normal}.divider{height:1px;background:var(--border);margin:1.5rem 0}.files-list{list-style:none;display:flex;flex-direction:column;gap:.6rem}.files-list li{display:flex;align-items:center;justify-content:space-between;background:var(--bg-input);border-radius:var(--radius);padding:.6rem 1rem}.files-list li span{font-size:.9rem}.status-banner{border-radius:var(--radius);padding:.75rem 1.2rem;font-size:.9rem;margin-bottom:1rem}.status-banner.error{background:#ff6b6b1f;border:1px solid var(--danger);color:var(--danger)}.status-banner.success{background:#4ecdc41a;border:1px solid var(--success);color:var(--success)}.status-banner.info{background:#6c63ff1a;border:1px solid var(--accent);color:var(--accent)}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin-right:8px;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.generate-row{display:flex;justify-content:center;margin-top:1.5rem}.generate-row button{padding:.75rem 2.5rem;font-size:1.05rem}