:root {
  --bg: #121212;
  --bg-elev: #1a1a1a;
  --card: rgba(28, 28, 30, 0.55);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #f5f5f7;
  --muted: #a1a1a6;
  --accent: #0084ff;
  --accent-soft: rgba(0, 132, 255, 0.1);
  --accent-glow: rgba(0, 132, 255, 0.35);
  --success: #30d158;
  --danger: #ff453a;
  --warning: #ffd60a;
  --radius: 18px;
  --radius-pill: 999px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(18px);
  --font: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

[data-theme="light"] {
  --bg: #f7f9fc;
  --bg-elev: #ffffff;
  --card: rgba(255, 255, 255, 0.65);
  --card-border: rgba(0, 0, 0, 0.06);
  --text: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0071e3;
  --accent-soft: rgba(0, 113, 227, 0.1);
  --accent-glow: rgba(0, 113, 227, 0.25);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

body {
  background:
    radial-gradient(1200px 600px at 10% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(1000px 500px at 90% 0%, var(--accent-soft), transparent 60%),
    var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 64px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
}

.glass {
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  letter-spacing: -0.03em;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 20px;
  line-height: 1.5;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.field input,
.field select {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field textarea {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font);
  outline: none;
  resize: vertical;
  min-height: 60px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field-wide {
  grid-column: 1 / -1;
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.upload-zone {
  border: 2px dashed var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  margin-bottom: 16px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.upload-zone input[type="file"] {
  width: 100%;
  cursor: pointer;
}

.upload-hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 8px;
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--card-border);
}

.file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.9rem;
}

.file-actions {
  display: flex;
  gap: 6px;
}

.file-actions button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
}

.file-actions button:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pill {
  border: none;
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.pill.primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 6px 20px var(--accent-glow);
}

.pill.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 26px var(--accent-glow);
}

.pill.primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.pill.ghost {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--card-border);
}

.hidden {
  display: none !important;
}

.progress-bar {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--bg-elev);
  overflow: hidden;
  margin-bottom: 16px;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
  transition: width 0.3s ease;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}

.status-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-elev);
  border: 1px solid var(--card-border);
  color: var(--muted);
  transition: all 0.2s ease;
}

.status-cell.pending { color: var(--muted); }
.status-cell.processing {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  animation: pulse 1.2s ease-in-out infinite;
}
.status-cell.success {
  background: rgba(48, 209, 88, 0.15);
  border-color: var(--success);
  color: var(--success);
}
.status-cell.failed {
  background: rgba(255, 69, 58, 0.15);
  border-color: var(--danger);
  color: var(--danger);
  cursor: pointer;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.console {
  background: #0a0a0a;
  color: #d4d4d4;
  border-radius: 12px;
  padding: 14px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8rem;
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--card-border);
  line-height: 1.5;
}

[data-theme="light"] .console {
  background: #f1f3f5;
  color: #222;
}

.console-line {
  margin: 2px 0;
  word-break: break-word;
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 12px;
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.5rem; }
  .card { padding: 20px; }
  .topbar { padding: 14px 18px; }
}