:root {
  --bg:         #f5f7fa;
  --surface:    #ffffff;
  --border:     #e0e5ee;
  --text:       #1f2d40;
  --text-muted: #6b7a8d;
  --primary:    #2fc6f6;
  --primary-dk: #00aae3;
  --green:      #5fd67a;
  --orange:     #ff8c00;
  --blue:       #5b9cf6;
  --radius:     12px;
  --shadow:     0 2px 12px rgba(0,0,0,0.07);
  --transition: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ─── Header ─────────────────────────────────── */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1500px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.header-icon { font-size: 22px; }

.header-title h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.header-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 4px;
}

/* ─── Main ────────────────────────────────────── */
.app-main {
  max-width: 1500px;
  margin: 0 auto;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ─── Cards ───────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ─── Summary cards ───────────────────────────── */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}

.stat-value.stat-green  { color: #2da84a; }
.stat-value.stat-blue   { color: #2271d1; }
.stat-value.stat-orange { color: var(--orange); }

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ─── Chart card ──────────────────────────────── */
.chart-card {
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.card-controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

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

.date-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

.date-input {
  appearance: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

.date-input:focus {
  outline: none;
  border-color: var(--primary);
}

.date-sep {
  color: var(--text-muted);
  font-size: 14px;
}

.brand-select {
  margin-top: 25px;
  appearance: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 28px 6px 12px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7a8d' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.brand-select:focus {
  outline: none;
  border-color: var(--primary);
}

/* ─── Chart body ──────────────────────────────── */
.chart-body {
  display: flex;
  align-items: center;
  gap: 40px;
}

.chart-container {
  width: 380px;
  height: 380px;
  flex-shrink: 0;
  padding: 0;
  overflow: visible;
}

#workTypeChart {
  padding: 0;
}

.chart-legend-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.legend-cost-header {
  display: flex;
  justify-content: flex-end;
  padding-right: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.chart-legend {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background var(--transition);
}

.legend-item:hover { background: var(--bg); }

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-name {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.legend-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  width: 150px;
  flex-shrink: 0;
  text-align: right;
}

.legend-pct {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 36px;
  text-align: right;
}

.chart-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 48px 0;
  font-size: 14px;
}

/* ─── Button ──────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
  border: 1px solid transparent;
}

.btn-refresh {
  background: var(--bg);
  border-color: var(--border);
  color: var(--text);
}

.btn-refresh:hover { background: #e8ecf2; }

.refresh-icon {
  font-size: 16px;
  display: inline-block;
  transition: transform 0.4s;
}

.btn-refresh.spinning .refresh-icon { animation: spin 0.6s linear infinite; }

/* ─── Loading skeleton ────────────────────────── */
.loading .stat-value,
.loading .stat-label {
  background: linear-gradient(90deg, #eef0f3 25%, #e0e3e8 50%, #eef0f3 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s infinite;
  border-radius: 4px;
  color: transparent;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Global loader ───────────────────────────── */
.global-loader {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 999;
}

.global-loader p { color: var(--text-muted); font-size: 14px; }

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ─── Utility ─────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Cars table ──────────────────────────────── */
.cars-card {
  padding: 24px;
}

.table-wrap {
  overflow-x: auto;
}

.cars-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.cars-table thead tr {
  border-bottom: 2px solid var(--border);
}

.cars-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  white-space: nowrap;
}

.cars-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.cars-table tbody tr:last-child td { border-bottom: none; }

.cars-table tbody tr:hover td { background: var(--bg); }

.col-num    { width: 1%; white-space: nowrap; color: var(--text-muted); }
.col-plate  { width: 1%; white-space: nowrap; }
.col-brand  { white-space: nowrap; color: var(--text-muted); font-size: 12px; }
.col-cost   { width: 1%; white-space: nowrap; text-align: right; font-weight: 600; }
.cars-table th.col-cost { text-align: right; }

.car-number {
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
}

.car-link {
  color: var(--primary-dk);
  text-decoration: none;
}

.car-link:hover {
  text-decoration: underline;
}

.coupled-tag {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  white-space: nowrap;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.work-tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  background: #edf2ff;
  color: #3b5bdb;
}

.work-items {
  font-weight: 400;
  color: #5c7cfa;
  font-size: 11px;
}

.table-total td {
  padding: 12px 14px;
  border-top: 2px solid var(--border);
  font-weight: 700;
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
}

.table-placeholder td,
.table-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 32px 0;
  font-size: 14px;
}

/* ─── Monthly bar chart ───────────────────────── */
.monthly-chart-wrap {
  height: 320px;
  position: relative;
}

.monthly-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.month-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #e8f7fd;
  color: #00aae3;
  border: 1px solid #b8e8f8;
  border-radius: 20px;
  padding: 3px 10px 3px 12px;
  font-size: 13px;
  font-weight: 600;
}

.badge-reset {
  background: none;
  border: none;
  color: #00aae3;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.badge-reset:hover { opacity: 1; }

/* ─── Responsive ──────────────────────────────── */

/* 1920px — большой монитор */
@media (min-width: 1920px) {
  .header-inner,
  .app-main { max-width: 1800px; padding-left: 48px; padding-right: 48px; }
  .chart-container { width: 460px; height: 460px; }
  .stat-value { font-size: 32px; }
  .chart-body { gap: 80px; }
}

/* 1500px — стандартный монитор (базовый стиль, без медиазапроса) */

/* ≤1500px — ноутбук */
@media (max-width: 1500px) {
  .header-inner,
  .app-main { padding-left: 20px; padding-right: 20px; }
  .chart-container { width: 320px; height: 320px; }
  .legend-value { width: 120px; }
}

/* ≤990px — маленький ноутбук / планшет landscape */
@media (max-width: 990px) {
  .app-main { padding: 16px 20px; gap: 16px; }
  .card-header { flex-wrap: wrap; gap: 12px; }
  .card-controls { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 8px; }
  .brand-select { margin-top: 0; }
  .chart-body { flex-direction: column; align-items: flex-start; gap: 24px; }
  .chart-container { width: 100%; max-width: 400px; height: 320px; margin: 0 auto; }
  .chart-legend-wrap { width: 100%; }
  .legend-value { width: auto; min-width: 100px; }
}

/* ≤768px — планшет portrait */
@media (max-width: 768px) {
  .header-inner { padding: 12px 16px; }
  .app-main { padding: 12px 16px; gap: 12px; }
  .header-subtitle { display: none; }
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 24px; }
  .chart-container { max-width: 340px; height: 280px; }
  .card-title { font-size: 14px; }
}

/* ≤480px — мобильный */
@media (max-width: 480px) {
  .header-inner { padding: 10px 12px; }
  .app-main { padding: 10px 12px; gap: 10px; }
  .header-icon { font-size: 18px; }
  .header-title h1 { font-size: 16px; }
  .summary-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 14px 16px; }
  .stat-value { font-size: 20px; }
  .chart-container { max-width: 260px; height: 240px; }
  .chart-body { gap: 16px; }
  .legend-name { font-size: 12px; }
  .legend-value { font-size: 12px; }

  /* Таблица на мобильном */
  .col-num { display: none; }
  .cars-table th, .cars-table td { padding: 10px 8px; }
  .cars-table { font-size: 12px; }
  .car-number { font-size: 12px; }
  .work-tag { font-size: 11px; padding: 2px 7px; }
  .col-cost { font-size: 12px; }
}