/* ─── Design Tokens ─── */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --bg-elevated: #22222e;
  --border-color: #2a2a3a;
  --text-primary: #e8e8f0;
  --text-secondary: #9090a8;
  --text-muted: #606070;
  --accent-primary: #6366f1;
  --accent-secondary: #a855f7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: all 0.2s ease;
}

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

html { font-size: 15px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

.app { max-width: 1400px; margin: 0 auto; padding: 0 24px 48px; }

/* ─── Header ─── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 28px;
  position: sticky;
  top: 0;
  background: rgba(10,10,15,0.9);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.header-left { display: flex; align-items: center; gap: 16px; }

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo h1 {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.env-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(34,197,94,0.15);
  color: var(--success);
  border: 1px solid rgba(34,197,94,0.3);
}

.api-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
  animation: pulse 2s infinite;
}

.api-status.connected .status-dot { background: var(--success); animation: none; }
.api-status.error .status-dot { background: var(--danger); animation: none; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── Stats Grid ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.stat-icon { font-size: 1.8rem; }

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ─── Panels ─── */
.panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

.panel-header h2 {
  font-size: 1rem;
  font-weight: 600;
}

.panel-actions { display: flex; gap: 8px; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn:hover:not(:disabled) {
  background: var(--bg-elevated);
  border-color: var(--accent-primary);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border: none;
  color: white;
}

.btn-primary:hover:not(:disabled) { opacity: 0.9; }

.btn-success {
  background: rgba(34,197,94,0.15);
  border-color: rgba(34,197,94,0.3);
  color: var(--success);
}

.btn-danger {
  background: rgba(239,68,68,0.15);
  border-color: rgba(239,68,68,0.3);
  color: var(--danger);
}

.btn-small { padding: 5px 12px; font-size: 0.78rem; }

.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ─── Listener Panel ─── */
.listener-panel { border-left: 3px solid var(--danger); }
.listener-panel.running { border-left-color: var(--success); }
.listener-panel.catchup { border-left-color: var(--warning); }

.listener-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 16px 20px;
}

.listener-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.listener-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

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

.listener-stat-value.mono { font-family: 'JetBrains Mono', monospace; }

/* ─── Forms ─── */
.add-contract-form {
  display: grid;
  grid-template-columns: 2fr 1fr auto;
  gap: 16px;
  align-items: end;
  padding: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group select {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.range-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-inputs input { flex: 1; }

.range-inputs span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.form-actions {
  display: flex;
  gap: 10px;
  grid-column: 1 / -1;
}

.form-result {
  padding: 0 20px 20px;
  font-size: 0.85rem;
}

.form-result.success { color: var(--success); }
.form-result.error { color: var(--danger); }

/* ─── Contracts Grid ─── */
.contracts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
  padding: 20px;
}

.contract-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.contract-card:hover {
  border-color: var(--accent-primary);
}

.contract-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.contract-address {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
}

.contract-address a {
  color: var(--accent-primary);
  text-decoration: none;
}

.contract-address a:hover { text-decoration: underline; }

.contract-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 600;
}

.badge-complete { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-partial { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-error { background: rgba(239,68,68,0.15); color: var(--danger); }

.contract-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.contract-meta span { display: flex; align-items: center; gap: 4px; }

.progress-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.progress-item {
  display: grid;
  grid-template-columns: 90px 1fr 50px;
  align-items: center;
  gap: 10px;
}

.progress-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.progress-track {
  height: 6px;
  background: var(--bg-primary);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 100px;
  transition: width 0.5s ease;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.progress-fill.complete { background: var(--success); }

.progress-value {
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  text-align: right;
}

.contract-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

/* ─── Workflows List ─── */
.workflows-list { padding: 0 20px 20px; }

.workflow-item {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.workflow-item:last-child { border-bottom: none; }

.workflow-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.workflow-status {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
}

.status-running { background: rgba(59,130,246,0.15); color: var(--info); }
.status-complete { background: rgba(34,197,94,0.15); color: var(--success); }
.status-error { background: rgba(239,68,68,0.15); color: var(--danger); }
.status-terminated { background: rgba(96,96,112,0.15); color: var(--text-muted); }

.workflow-time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ─── API Console ─── */
.api-console { padding: 20px; }

.console-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.console-tab {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.console-tab:hover { color: var(--text-primary); }
.console-tab.active { background: var(--bg-elevated); color: var(--text-primary); }

.console-content {}

.console-form {
  display: grid;
  grid-template-columns: 2fr 1fr auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 16px;
}

.console-output {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  min-height: 120px;
  max-height: 300px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ─── Loading & Empty States ─── */
.loading-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

.hidden { display: none !important; }

/* ─── Toasts ─── */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  animation: toastIn 0.3s ease;
  max-width: 400px;
  word-break: break-word;
}

.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--danger); color: white; }
.toast.info { background: var(--info); color: white; }

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .listener-grid { grid-template-columns: repeat(2, 1fr); }
  .add-contract-form { grid-template-columns: 1fr; }
  .contracts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: 1fr; }
  .listener-grid { grid-template-columns: 1fr; }
  .header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .app { padding: 0 16px 32px; }
}