:root {
  --primary: #c0262d;       /* Fire service red */
  --primary-hover: #9e1f25;
  --primary-light: #fef2f2;
  --secondary: #1e293b;
  --secondary-hover: #0f172a;
  --accent: #2563eb;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --border-focus: #c0262d;
  --text: #0f172a;
  --text-muted: #64748b;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding-bottom: 60px;
  -webkit-font-smoothing: antialiased;
}

.header {
  background-color: #ffffff;
  border-bottom: 2px solid var(--primary);
  padding: 16px 24px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.header-title-box {
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-f18a {
  background-color: var(--primary);
  color: white;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 1.1rem;
  letter-spacing: 0.5px;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
}

.header-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

.container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.notice-banner {
  background-color: #fffbeb;
  border-left: 4px solid var(--warning);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: #92400e;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

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

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

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--secondary);
}

.format-hint {
  font-size: 0.75rem;
  font-weight: normal;
  color: var(--text-muted);
  margin-left: 4px;
}

.input-with-button {
  display: flex;
  gap: 6px;
}

input[type="text"],
input[type="date"],
input[type="time"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--text);
  background-color: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  min-height: 44px; /* Touch-friendly tap target for tablets */
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(192, 38, 45, 0.15);
}

/* Table styles for tablet */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 8px;
}

.activity-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

.activity-table th {
  background-color: #f1f5f9;
  color: #334155;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 8px;
  text-align: left;
  border: 1px solid var(--border);
}

.activity-table td {
  padding: 8px;
  border: 1px solid var(--border);
  vertical-align: middle;
}

.activity-table input {
  padding: 6px 8px;
  min-height: 38px;
  font-size: 0.9rem;
}

.row-num {
  font-weight: 700;
  color: var(--text-muted);
  text-align: center;
  width: 36px;
}

.hours-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.override-indicator {
  position: absolute;
  right: 6px;
  font-size: 0.7rem;
  color: #b45309;
  background-color: #fef3c7;
  padding: 2px 4px;
  border-radius: 4px;
  pointer-events: none;
}

.table-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.totals-badge {
  display: flex;
  align-items: baseline;
  gap: 10px;
  background-color: var(--primary-light);
  border: 1px solid #fecaca;
  padding: 10px 18px;
  border-radius: var(--radius);
}

.totals-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
}

.totals-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

/* Signature Pad */
.signature-card-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .signature-card-content {
    grid-template-columns: 360px 1fr;
  }
}

.canvas-container {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: #ffffff;
  position: relative;
  touch-action: none; /* Crucial for tablet stylus and touch drawing */
  cursor: crosshair;
  overflow: hidden;
}

.canvas-container.disabled {
  opacity: 0.35;
  pointer-events: none;
}

#signatureCanvas {
  display: block;
  width: 100%;
  height: 160px;
  touch-action: none;
}

.canvas-overlay-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #cbd5e1;
  font-size: 0.95rem;
  font-weight: 600;
  pointer-events: none;
  user-select: none;
}

.signature-controls {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}

.signature-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 44px; /* Touch target */
  user-select: none;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 2px 4px rgba(192, 38, 45, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #f1f5f9;
  color: #334155;
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background-color: #f8fafc;
  border-color: #cbd5e1;
}

.btn-danger-outline {
  background-color: transparent;
  border-color: #fecaca;
  color: var(--danger);
  padding: 4px 8px;
  min-height: 36px;
  font-size: 0.85rem;
}

.btn-danger-outline:hover {
  background-color: #fee2e2;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
  min-height: 36px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
}

/* Action Bar */
.bottom-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
  backdrop-filter: blur(2px);
}

.modal {
  background-color: white;
  border-radius: var(--radius);
  max-width: 520px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.cache-item-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 300px;
  overflow-y: auto;
}

.cache-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background-color: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--secondary);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.2s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background-color: var(--success);
}

.toast.warning {
  background-color: var(--warning);
  color: #78350f;
}

/* Service Worker Update Notification Banner */
.update-banner {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: #1e293b;
  color: #ffffff;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.95rem;
  border-bottom: 3px solid var(--primary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.update-banner.hidden {
  display: none !important;
}

.update-banner-content {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.update-banner-icon {
  font-size: 1.2rem;
}

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