:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1a1f2c;
  --muted: #6a7184;
  --line: #e7e9f0;
  --accent: #0a66ff;
  --good: #1ca37f;
  --good-bg: #e6f6f0;
  --ok: #6a7184;
  --ok-bg: #eef0f4;
  --bad: #d04848;
  --bad-bg: #fbecec;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  position: sticky; top: 0; z-index: 10;
}
.topbar .container { display: flex; align-items: baseline; gap: 16px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text); }
.brand-mark { font-size: 20px; color: var(--accent); }
.brand-name { font-weight: 600; font-size: 17px; }
.subtitle { color: var(--muted); font-size: 13px; }

.page-header { margin: 28px 0 16px; }
.page-header h1 { margin: 4px 0 6px; font-size: 26px; font-weight: 700; letter-spacing: -0.01em; }
.page-header .muted { color: var(--muted); font-size: 14px; }
.back { color: var(--accent); text-decoration: none; font-size: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: 0 1px 2px rgba(20,30,60,0.04);
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-header h2 { margin: 0; font-size: 17px; font-weight: 600; }
.card h2 { margin: 0 0 12px; font-size: 17px; font-weight: 600; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; letter-spacing: -0.01em; }
.stat .value.small { font-size: 16px; }
.stat .small { font-size: 12px; margin-top: 4px; }
@media (max-width: 800px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

table.routes { width: 100%; border-collapse: collapse; }
table.routes th, table.routes td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
table.routes th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
table.routes tbody tr { cursor: pointer; transition: background 0.1s; }
table.routes tbody tr:hover { background: #f9fafd; }
table.routes .num { text-align: right; font-variant-numeric: tabular-nums; }
table.routes .strong { font-weight: 600; }
table.routes .small { font-size: 12px; color: var(--muted); }

.route-pair { display: flex; align-items: center; gap: 6px; }
.route-pair .city { font-weight: 600; }
.route-pair .arrow { color: var(--muted); }
.codes { color: var(--muted); font-size: 12px; margin-top: 2px; }

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.good { background: var(--good-bg); color: var(--good); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.muted { background: #eef0f4; color: var(--muted); }
.muted { color: var(--muted); }

.tabs { display: flex; gap: 4px; }
.tab {
  padding: 6px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}
.tab.active { background: var(--accent); color: #fff; }

.chart-wrap { height: 320px; position: relative; }

.footer { padding: 24px 0 40px; color: var(--muted); font-size: 13px; }

/* Табы выбора вида */
.tabs-bar { display: flex; gap: 4px; margin: 8px 0 18px; border-bottom: 1px solid var(--line); }
.tab-link {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-link:hover { color: var(--text); }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Форма фильтра «Даты вылета» */
.filter { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px; margin: 14px 0 6px; }
.filter-field { display: flex; flex-direction: column; gap: 6px; }
.filter-field > span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.filter select {
  padding: 8px 10px;
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  min-width: 180px;
}
.preset-group { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.filter-custom { width: 100%; margin-top: 6px; }
.filter-custom summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.custom-row { display: flex; gap: 10px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.custom-row input[type=date] { padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }
.btn { padding: 8px 14px; border-radius: 8px; border: none; background: var(--accent); color: #fff; font-weight: 500; cursor: pointer; }
.range-summary { margin: 8px 0 12px; font-size: 14px; color: var(--text); }