/* Flow Engine WebApp - Telegram Mini App Theme */
:root {
  --bg: var(--tg-theme-bg-color, #fff);
  --text: var(--tg-theme-text-color, #222);
  --hint: var(--tg-theme-hint-color, #999);
  --link: var(--tg-theme-link-color, #2481cc);
  --btn: var(--tg-theme-button-color, #2481cc);
  --btn-text: var(--tg-theme-button-text-color, #fff);
  --section: var(--tg-theme-section-bg-color, #f5f5f5);
  --card: #fff;
  --border: #e0e0e0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  padding: 0 0 80px 0;
  min-height: 100vh;
}

/* Header */
header {
  padding: 16px;
  background: var(--section);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 { font-size: 20px; margin-bottom: 8px; }

.stats {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.stat {
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 12px;
  background: var(--bg);
  font-weight: 600;
}
.stat.pending { color: #f59e0b; }
.stat.running { color: #3b82f6; }
.stat.done { color: #22c55e; }
.stat.failed { color: #ef4444; }

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  padding: 8px 16px;
  background: var(--section);
  border-bottom: 1px solid var(--border);
}
.tab {
  flex: 1;
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--hint);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.tab.active {
  background: var(--btn);
  color: var(--btn-text);
}

/* Views */
.view { display: none; padding: 12px; }
.view.active { display: block; }

/* Board Columns */
.columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 600px) {
  .columns { grid-template-columns: repeat(2, 1fr); }
}
.column h3 {
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 8px 8px 0 0;
  margin-bottom: 0;
}
.column.pending-col h3 { background: #fef3c7; color: #92400e; }
.column.running-col h3 { background: #dbeafe; color: #1e40af; }
.column.done-col h3 { background: #dcfce7; color: #166534; }
.column.failed-col h3 { background: #fee2e2; color: #991b1b; }

/* Task Cards */
.task-list { min-height: 60px; }

.task-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 6px 0;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.task-card:active { transform: scale(0.98); }

.task-card .title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.task-card .meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 11px;
}
.task-card .badge {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}
.badge.high { background: #fee2e2; color: #dc2626; }
.badge.medium { background: #fef3c7; color: #d97706; }
.badge.low { background: #e0e7ff; color: #4f46e5; }
.badge.running { background: #dbeafe; color: #2563eb; }
.badge.completed { background: #dcfce7; color: #16a34a; }
.badge.failed { background: #fee2e2; color: #dc2626; }
.badge.pending { background: #f5f5f5; color: #666; }

/* Form */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.form-card h3 { margin-bottom: 12px; }

.form-group {
  margin-bottom: 12px;
}
.form-group label {
  display: block;
  font-size: 12px;
  color: var(--hint);
  margin-bottom: 4px;
  font-weight: 600;
}
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--link);
}
.form-row {
  display: flex;
  gap: 12px;
}
.form-row .form-group { flex: 1; }

.btn-primary {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--btn);
  color: var(--btn-text);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

/* Modal */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: flex;
  align-items: flex-end;
}
.modal-content {
  background: var(--bg);
  border-radius: 16px 16px 0 0;
  padding: 20px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
}
.close-btn {
  float: right;
  border: none;
  background: none;
  font-size: 18px;
  color: var(--hint);
  cursor: pointer;
}
#task-detail { margin: 12px 0; }
#task-detail .detail-row {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
#task-detail .detail-row strong { display: inline-block; min-width: 80px; }

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.btn-warn, .btn-danger {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.btn-warn { background: #fef3c7; color: #92400e; }
.btn-danger { background: #fee2e2; color: #991b1b; }

/* Logs */
.log-list { max-height: 70vh; overflow-y: auto; }
.log-entry {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-family: monospace;
  color: var(--hint);
  white-space: pre-wrap;
  word-break: break-all;
}
.log-entry.error { color: #ef4444; }
.log-entry.warn { color: #f59e0b; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 24px;
  color: var(--hint);
  font-size: 13px;
}