:root {
  --font-body: 'IBM Plex Sans', 'Segoe UI', Tahoma, sans-serif;
  --font-heading: 'Space Grotesk', 'IBM Plex Sans', sans-serif;

  --bg-main: #edf4f0;
  --bg-accent: #d8ebe0;
  --card-bg: rgba(255, 255, 255, 0.88);
  --card-border: rgba(18, 46, 34, 0.12);
  --text-main: #122e22;
  --text-muted: #557161;
  --primary: #0f7a63;
  --primary-strong: #0a5d4b;
  --secondary: #d7842f;
  --danger: #c74545;
  --success: #2c8a55;
  --shadow: 0 18px 40px rgba(16, 52, 37, 0.14);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --transition: 0.22s ease;
}

[data-theme='dark'] {
  --bg-main: #0f1e19;
  --bg-accent: #16352a;
  --card-bg: rgba(20, 33, 28, 0.9);
  --card-border: rgba(167, 224, 196, 0.16);
  --text-main: #e4f3ec;
  --text-muted: #9db6ab;
  --primary: #57c2a7;
  --primary-strong: #7de3c8;
  --secondary: #f2aa5c;
  --danger: #ff7676;
  --success: #57d48e;
  --shadow: 0 16px 38px rgba(4, 9, 8, 0.42);
}

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

body {
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.5;
  color: var(--text-main);
  background:
    radial-gradient(circle at 12% 10%, rgba(215, 132, 47, 0.2), transparent 32%),
    radial-gradient(circle at 87% 18%, rgba(15, 122, 99, 0.2), transparent 36%),
    linear-gradient(165deg, var(--bg-main), var(--bg-accent));
  transition: background-color var(--transition), color var(--transition);
}

.app-shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 1.2rem;
  display: grid;
  gap: 1rem;
}

.surface {
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.app-header {
  padding: 1.2rem 1.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.eyebrow {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.app-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem);
  line-height: 1.05;
}

.subtitle {
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.app-nav {
  padding: 0.45rem;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.35rem;
}

.nav-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.93rem;
  padding: 0.7rem 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform var(--transition);
}

.nav-btn:hover {
  color: var(--text-main);
  background: rgba(15, 122, 99, 0.1);
}

.nav-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
}

.app-main {
  display: grid;
}

.app-view {
  display: none;
  opacity: 0;
}

.app-view.active {
  display: block;
  animation: rise-in 0.34s ease forwards;
}

.section-head {
  margin-bottom: 0.9rem;
}

.section-head h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 0.2rem;
}

.section-head p {
  color: var(--text-muted);
}

.form-layout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1rem;
  align-items: start;
}

.ride-form,
.settings-form,
.export-import,
.resource-card,
.search-filter,
.chart-card,
.monthly-summary,
.stat-card,
.map-container {
  padding: 1rem;
}

.form-grid,
.compact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
}

.form-group label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group small {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.62rem 0.72rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text-main);
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

[data-theme='dark'] .form-group input,
[data-theme='dark'] .form-group select,
[data-theme='dark'] .form-group textarea {
  background: rgba(12, 21, 18, 0.75);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 122, 99, 0.14);
}

.span-2 {
  grid-column: span 2;
}

.autocomplete-field {
  position: relative;
}

.autocomplete-list {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 0.25rem);
  z-index: 40;
  max-height: 220px;
  overflow-y: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  box-shadow: 0 14px 28px rgba(16, 52, 37, 0.2);
  padding: 0.2rem;
}

.autocomplete-item {
  display: block;
  width: 100%;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-main);
  text-align: left;
  font: inherit;
  padding: 0.48rem 0.55rem;
  cursor: pointer;
}

.autocomplete-item:hover,
.autocomplete-item.active {
  background: rgba(15, 122, 99, 0.14);
}

.inline-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.45rem;
  align-items: center;
}

.checkbox-group {
  align-items: flex-start;
}

.check-label {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 500;
}

.check-label input[type='checkbox'] {
  width: auto;
}

.form-actions {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.btn-primary,
.btn-secondary,
.btn-table {
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0.58rem 0.85rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(15, 122, 99, 0.26);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: rgba(15, 122, 99, 0.35);
}

.btn-secondary:hover {
  background: rgba(15, 122, 99, 0.1);
}

.btn-table {
  padding: 0.35rem 0.56rem;
  background: rgba(15, 122, 99, 0.1);
  color: var(--primary);
}

.btn-table:hover {
  background: rgba(15, 122, 99, 0.18);
}

.btn-table.warning {
  background: rgba(215, 132, 47, 0.16);
  color: #92551c;
}

.btn-table.warning:hover {
  background: rgba(215, 132, 47, 0.24);
}

.btn-table.danger {
  background: rgba(199, 69, 69, 0.14);
  color: var(--danger);
}

.btn-table.danger:hover {
  background: rgba(199, 69, 69, 0.22);
}

.btn-table.ghost {
  background: rgba(32, 122, 238, 0.14);
  color: #2f6fca;
}

.btn-table.ghost:hover {
  background: rgba(32, 122, 238, 0.24);
}

.search-filter {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.6rem;
  margin-bottom: 0.9rem;
  align-items: end;
}

.search-filter .grow {
  grid-column: span 2;
}

.inline-mini {
  min-width: 0;
}

.check-only {
  justify-content: flex-end;
}

.table-container {
  overflow: auto;
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.7rem;
  border-bottom: 1px solid var(--card-border);
  vertical-align: middle;
}

th {
  font-size: 0.83rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

th[data-sort] {
  cursor: pointer;
}

th[data-sort]:hover {
  color: var(--primary);
}

tbody tr:hover {
  background: rgba(15, 122, 99, 0.08);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.empty-row {
  color: var(--text-muted);
  text-align: center;
  padding: 1.2rem;
}

.chip {
  display: inline-flex;
  border-radius: 999px;
  padding: 0.14rem 0.48rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.chip-private {
  background: rgba(215, 132, 47, 0.18);
  color: #8b531d;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.54rem;
  font-size: 0.74rem;
  font-weight: 700;
}

.status-active {
  background: rgba(44, 138, 85, 0.18);
  color: var(--success);
}

.status-archived {
  background: rgba(199, 69, 69, 0.15);
  color: var(--danger);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 0.85rem;
}

.pagination span {
  font-weight: 600;
  color: var(--text-muted);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.resource-card h3,
.chart-card h3,
.monthly-summary h3,
.export-import h3,
.map-head h3 {
  font-family: var(--font-heading);
  font-size: 1.08rem;
  margin-bottom: 0.55rem;
}

.compact-form {
  margin-bottom: 0.65rem;
}

.compact-actions {
  margin-top: 0.55rem;
}

.resource-toolbar {
  margin-bottom: 0.55rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.stat-card h3 {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-card p {
  font-family: var(--font-heading);
  font-size: 1.7rem;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.chart-card canvas {
  max-height: 280px;
}

.monthly-summary table {
  margin-top: 0.45rem;
}

.settings-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
}

.export-import p {
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.map-container {
  min-height: 420px;
  display: flex;
  flex-direction: column;
}

.map-head p {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.55rem;
}

#map {
  flex: 1;
  min-height: 320px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 14, 11, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 1000;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: min(520px, 92vw);
  padding: 1rem;
}

.modal h3 {
  font-family: var(--font-heading);
  margin-bottom: 0.6rem;
}

.modal-actions {
  margin-top: 0.9rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.55rem;
}

.toast-container {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: grid;
  gap: 0.45rem;
  z-index: 1050;
}

.toast {
  padding: 0.62rem 0.82rem;
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow);
  animation: toast-in 0.2s ease;
}

.toast.success {
  background: linear-gradient(135deg, #2c8a55, #2fa968);
}

.toast.error {
  background: linear-gradient(135deg, #b94040, #d85d5d);
}

.hidden {
  display: none !important;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(18px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (max-width: 1120px) {
  .form-layout,
  .resources-grid,
  .charts-grid,
  .settings-layout {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .map-container {
    min-height: 330px;
  }
}

@media (max-width: 820px) {
  .app-shell {
    padding: 0.75rem;
  }

  .app-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-filter {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .search-filter .grow,
  .span-2,
  .check-only {
    grid-column: span 2;
  }

  .form-grid,
  .compact-grid {
    grid-template-columns: 1fr;
  }

  .inline-field {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }
}