* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-card-hover: #222639;
  --border: #2a2e3d;
  --text: #e4e4e7;
  --text-muted: #888;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.header { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--border); margin-bottom: 30px; }
.header h1 { font-size: 24px; font-weight: 700; }
.header h1 span { color: var(--primary); }

/* Buttons */
.btn { padding: 10px 20px; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { opacity: 0.9; }
.btn-warning { background: var(--warning); color: black; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 16px; }
.card:hover { border-color: #3a3e4d; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-title { font-size: 18px; font-weight: 700; }

/* Status badges */
.badge { padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-gerando { background: rgba(99,102,241,0.15); color: var(--primary); }
.badge-aguardando { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-aprovado { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-publicando { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-publicado { background: rgba(34,197,94,0.25); color: var(--success); }
.badge-erro { background: rgba(239,68,68,0.15); color: var(--danger); }

/* Grid */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.form-control { width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; font-family: inherit; }
.form-control:focus { outline: none; border-color: var(--primary); }
textarea.form-control { min-height: 120px; resize: vertical; }
select.form-control { appearance: none; }

/* Ebook list item */
.ebook-item { display: flex; align-items: center; gap: 20px; padding: 20px; }
.ebook-thumb { width: 80px; height: 67px; border-radius: 8px; object-fit: cover; background: var(--bg); }
.ebook-info { flex: 1; }
.ebook-info h3 { font-size: 16px; margin-bottom: 4px; }
.ebook-info p { font-size: 13px; color: var(--text-muted); }
.ebook-price { font-size: 20px; font-weight: 800; color: var(--success); }
.ebook-actions { display: flex; gap: 8px; }

/* Preview images */
.preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.preview-grid img { width: 100%; border-radius: 8px; border: 1px solid var(--border); }

/* Steps/workflow */
.steps { display: flex; gap: 4px; margin: 20px 0; }
.step { flex: 1; padding: 12px; text-align: center; background: var(--bg); border-radius: 8px; font-size: 12px; font-weight: 600; color: var(--text-muted); position: relative; }
.step.active { background: var(--primary); color: white; }
.step.done { background: rgba(34,197,94,0.15); color: var(--success); }

/* Modal */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.7); display: none; align-items: center; justify-content: center; z-index: 100; }
.modal-overlay.show { display: flex; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px; max-width: 600px; width: 90%; max-height: 90vh; overflow-y: auto; }
.modal h2 { margin-bottom: 20px; }

/* Loading */
.spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Misc */
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* Empty state */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }