:root {
  --bg: #eef1f4;
  --card: #ffffff;
  --text: #1a2332;
  --muted: #6b7c93;
  --border: #d8dee6;
  --green: #1f7a4f;
  --green-light: #e8f5ee;
  --orange: #d97706;
  --orange-light: #fff4e6;
  --red: #dc2626;
  --red-light: #fee2e2;
  --shadow: 0 2px 8px rgba(26, 35, 50, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.board {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.board-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.board-header h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.section-meta {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pace-badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--green-light);
  color: var(--green);
}

.pace-badge.late {
  background: var(--orange-light);
  color: var(--orange);
}

.pace-badge.quick {
  background: #dbeafe;
  color: #1d4ed8;
}

.btn {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.9rem;
}

.btn:hover {
  background: #f8fafc;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.progress-section {
  padding: 16px 18px;
  margin-bottom: 14px;
}

.progress-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.progress-track {
  position: relative;
  height: 28px;
  background: #e5e9ef;
  border-radius: 8px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #1f7a4f, #2d9a66);
  width: 0%;
  transition: width 0.4s ease;
}

.progress-forecast {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #1a2332;
  opacity: 0.5;
}

.progress-times {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--muted);
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.kpi {
  padding: 14px 16px;
  text-align: center;
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 700;
}

.kpi-label {
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--muted);
}

.kpi.warning .kpi-value {
  color: var(--orange);
}

.kpi.danger .kpi-value {
  color: var(--red);
}

.alarms-section {
  padding: 14px 18px;
  margin-bottom: 14px;
}

.alarms-section h2,
.fleet-main h2 {
  margin: 0 0 12px;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.alarm-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.alarm-item {
  display: grid;
  grid-template-columns: 12px 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 8px;
  background: #f8fafc;
  font-size: 0.9rem;
}

.alarm-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.alarm-dot.warning {
  background: var(--orange);
}

.alarm-dot.critical {
  background: var(--red);
}

.alarm-truck {
  font-weight: 600;
  color: var(--muted);
}

.alarm-time {
  color: var(--muted);
  font-size: 0.85rem;
}

.fleet-section {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
}

.fleet-sidebar {
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-btn {
  border: none;
  background: transparent;
  padding: 10px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
  text-decoration: none;
}

.nav-btn.active {
  background: var(--green-light);
  color: var(--green);
  font-weight: 600;
}

.fleet-main {
  padding: 14px 18px;
}

.fleet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
}

.truck-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  background: #fff;
  transition: box-shadow 0.15s;
}

.truck-card:hover {
  box-shadow: var(--shadow);
}

.truck-card.inactive {
  opacity: 0.45;
}

.truck-card.alarm {
  border-color: #fca5a5;
  background: var(--red-light);
}

.truck-id {
  font-weight: 700;
  font-size: 0.95rem;
}

.truck-status {
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--muted);
}

.truck-cycles {
  margin-top: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green);
}

.truck-alarm-icon {
  color: var(--red);
  font-size: 0.75rem;
}

@media (max-width: 800px) {
  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .fleet-section {
    grid-template-columns: 1fr;
  }
}