/* ============================================
   Brand Machine — Premium Dark UI
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --warning: #f59e0b;
  --error: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Background Gradient ───────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(99, 102, 241, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── Layout ────────────────────────────────────── */
.app {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ── Header ────────────────────────────────────── */
.header {
  text-align: center;
  margin-bottom: 3rem;
}

.header__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
  box-shadow: 0 0 30px var(--accent-glow);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.header__title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header__subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.5rem;
  font-weight: 400;
}

/* ── Card / Glass Panel ────────────────────────── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.card__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.card__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ── Form Elements ─────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-label .required {
  color: var(--error);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: all var(--transition);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(255, 255, 255, 0.06);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.25rem;
}

.form-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 70px;
}

/* ── Submit Button ─────────────────────────────── */
.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.9rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px var(--accent-glow);
  position: relative;
  overflow: hidden;
}

.btn-submit::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-submit:hover:not(:disabled)::before {
  opacity: 1;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 30px rgba(99, 102, 241, 0.35);
}

.btn-submit:active:not(:disabled) {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-submit .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn-submit.loading .spinner {
  display: block;
}

.btn-submit.loading .btn-label {
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Progress Panel ────────────────────────────── */
.progress-panel {
  display: none;
}

.progress-panel.visible {
  display: block;
  animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.progress-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.progress-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  border: 1px solid transparent;
  transition: all var(--transition);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.progress-item.active {
  border-color: var(--border-focus);
  background: rgba(99, 102, 241, 0.06);
  color: var(--accent-light);
}

.progress-item.done {
  border-color: rgba(16, 185, 129, 0.2);
  background: rgba(16, 185, 129, 0.04);
  color: var(--success);
}

.progress-item.error {
  border-color: rgba(239, 68, 68, 0.2);
  background: rgba(239, 68, 68, 0.04);
  color: var(--error);
}

.progress-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.progress-item.active .progress-icon::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.progress-label {
  flex: 1;
  font-weight: 500;
}

.progress-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* ── Log Console ───────────────────────────────── */
.log-console {
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  max-height: 240px;
  overflow-y: auto;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.log-console::-webkit-scrollbar { width: 4px; }
.log-console::-webkit-scrollbar-track { background: transparent; }
.log-console::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.log-line {
  white-space: pre-wrap;
  word-break: break-word;
}

.log-line.error {
  color: var(--error);
}

/* ── Result Panel ──────────────────────────────── */
.result-panel {
  display: none;
}

.result-panel.visible {
  display: block;
  animation: slideUp 0.4s ease-out;
}

.result-success {
  text-align: center;
  padding: 1.5rem;
}

.result-success__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--success-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  animation: scaleIn 0.4s ease-out;
}

@keyframes scaleIn {
  from { transform: scale(0); }
  to   { transform: scale(1); }
}

.result-success__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.result-success__subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.result-links {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.result-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
}

.result-link--primary {
  background: var(--accent);
  color: #fff;
}

.result-link--primary:hover {
  background: var(--accent-light);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.result-link--secondary {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.result-link--secondary:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
}

/* ── Error Toast ───────────────────────────────── */
.error-banner {
  display: none;
  padding: 1rem 1.25rem;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  color: #fca5a5;
  font-size: 0.88rem;
  margin-bottom: 1rem;
  animation: slideUp 0.3s ease-out;
}

.error-banner.visible {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

/* ── New Run Button ────────────────────────────── */
.btn-new-run {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.6rem 1.25rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-new-run:hover {
  border-color: rgba(255,255,255,0.15);
  color: var(--text-primary);
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 640px) {
  .app { padding: 1.25rem 1rem 3rem; }
  .header__title { font-size: 1.5rem; }
  .form-grid { grid-template-columns: 1fr; }
  .card { padding: 1.25rem; }
  .result-links { flex-direction: column; }
  .result-link { justify-content: center; }
}