:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #6b7280;
  --line: #e3e6eb;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --danger: #c62828;
  --warn-bg: #fff4e5;
  --warn-text: #7a4b00;
  --ok-bg: #e8f5e9;
  --ok-text: #1b5e20;
  --err-bg: #fdecea;
  --err-text: #8e1c1c;
  --sel: #dbe7ff;
  --radius: 10px;
  --ok-strong: #2E7D32;
  --req-bg: #ede7f6;
  --req-text: #4527a0;
  --req-strong: #6a4fc4;
  /* графики (палитра проверена на контраст и различимость) */
  --series-1: #2a78d6;
  --series-1-soft: #86b6ef;
  --grid: #e8e9ec;
  --axis: #c9ccd2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151b;
    --card: #1b1f27;
    --text: #e7e9ee;
    --muted: #9aa3b2;
    --line: #2c323d;
    --accent: #5b8cff;
    --warn-bg: #3a2c12;
    --warn-text: #ffd08a;
    --ok-bg: #16301b;
    --ok-text: #9be3a5;
    --err-bg: #3b1717;
    --err-text: #ffb4ab;
    --sel: #243556;
    --ok-strong: #3f9a47;
    --req-bg: #2c2347;
    --req-text: #c9b8ff;
    --req-strong: #7d64d8;
    --series-1: #3987e5;
    --series-1-soft: #1c5cab;
    --grid: #2a2f39;
    --axis: #3a404c;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
.num, table.list .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1 { font-size: 22px; margin: 0 0 12px; }
h2 { font-size: 18px; margin: 24px 0 10px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
  padding: 8px 16px; background: var(--card); border-bottom: 1px solid var(--line);
}
.topbar .brand { font-weight: 700; margin-right: auto; text-decoration: none; color: var(--text); }
.topbar nav { display: flex; gap: 2px; flex-wrap: wrap; }
.topbar nav a, .topbar nav button {
  padding: 6px 10px; border-radius: 8px; text-decoration: none; color: var(--text);
  background: none; border: 0; font: inherit; cursor: pointer;
}
.topbar nav a.active { background: var(--sel); }

main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }

.msg { padding: 10px 14px; border-radius: 8px; margin-bottom: 10px; }
.msg.success { background: var(--ok-bg); color: var(--ok-text); }
.msg.warning { background: var(--warn-bg); color: var(--warn-text); }
.msg.error { background: var(--err-bg); color: var(--err-text); }

.btn {
  display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font: inherit; text-decoration: none; cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
form.inline { display: inline; }

/* ---------- формы */
.form p { margin: 0 0 12px; }
.form label { display: block; font-weight: 600; margin-bottom: 4px; }
.form input[type=text], .form input[type=tel], .form input[type=number], .form input[type=date],
.form input[type=time], .form input[type=url], .form input[type=password], .form select, .form textarea {
  width: 100%; max-width: 420px; padding: 8px 10px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
}
.form input[type=color] { width: 60px; height: 36px; padding: 2px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.form .helptext { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }
.form ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 6px 14px; flex-wrap: wrap; }
.form ul label { font-weight: 400; display: inline; }
.errorlist { color: var(--danger); margin: 0 0 6px; padding-left: 18px; }
.form ul.errorlist { display: block; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; }

table.list { width: 100%; border-collapse: collapse; }
table.list th, table.list td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.list th { font-size: 13px; color: var(--muted); font-weight: 600; }
.scroll-x { overflow-x: auto; }

.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--c); vertical-align: middle; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: var(--sel); }
.badge.ok { background: var(--ok-bg); color: var(--ok-text); }
.badge.err { background: var(--err-bg); color: var(--err-text); }
.badge.warn { background: var(--warn-bg); color: var(--warn-text); }

code.url { display: block; padding: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; word-break: break-all; font-size: 13px; }

/* ---------- календарь */
.cal-head { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.cal-head h1 { margin: 0 auto 0 0; }
.months { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.month h2 { margin: 0 0 8px; font-size: 17px; }
.cal { display: grid; grid-template-columns: repeat(7, 1fr); border-left: 1px solid var(--line); border-top: 1px solid var(--line); user-select: none; }
.cal .wd { font-size: 12px; color: var(--muted); text-align: center; padding: 4px 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.day {
  position: relative; min-height: 64px; padding: 3px 4px;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--card); cursor: pointer;
}
.day.out { opacity: .45; }
.day.past { background: var(--bg); cursor: default; }
.day.today .num { background: var(--accent); color: var(--accent-text); border-radius: 10px; padding: 0 6px; }
.day .num { font-size: 13px; font-weight: 600; position: relative; z-index: 4; }
.day .price { position: absolute; left: 4px; bottom: 3px; font-size: 11px; color: var(--muted); }
.day.sel, .day.in-range { background: var(--sel); }
.day .bar, .day .tail {
  position: absolute; top: 24px; height: 22px; background: var(--c); z-index: 1; display: block;
}
.day .bar { left: 0; right: -1px; }
.day .bar.start { left: 50%; border-radius: 11px 0 0 11px; }
.day .tail { left: 0; width: 50%; border-radius: 0 11px 11px 0; }
.day .lbl {
  position: absolute; top: 24px; height: 22px; line-height: 22px; z-index: 3; left: 0;
  width: calc(var(--span) * 100% - 6px); padding: 0 6px;
  color: #fff; font-size: 11px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  pointer-events: none;
}
.day .lbl.start { left: 50%; width: calc(var(--span) * 100% - 50% - 6px); }
.day.request .bar, .day .tail.req {
  background: repeating-linear-gradient(135deg, var(--c) 0 6px, color-mix(in srgb, var(--c) 45%, transparent) 6px 12px);
}
.dot-request { background: repeating-linear-gradient(135deg, var(--c) 0 3px, color-mix(in srgb, var(--c) 40%, transparent) 3px 6px); }
.day.conflict .bar { background: repeating-linear-gradient(45deg, var(--danger) 0 6px, #ff8a80 6px 12px); }
@media (max-width: 480px) {
  main { padding: 12px; }
  .topbar { padding: 6px 10px; }
  .topbar nav a, .topbar nav button { padding: 6px 7px; font-size: 14px; }
  .day { min-height: 60px; padding: 2px 3px; }
  .day .bar, .day .tail, .day .lbl { top: 21px; height: 18px; line-height: 18px; }
  .day .bar.start { border-radius: 9px 0 0 9px; }
  .day .tail { border-radius: 0 9px 9px 0; }
  .day .lbl { font-size: 10px; padding: 0 4px; }
  .day .price { font-size: 10px; bottom: 2px; }
}

.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 13px; margin: 12px 0; }
.select-hint {
  position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 20;
  display: none; gap: 10px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px;
  box-shadow: 0 6px 24px rgba(0,0,0,.18); max-width: calc(100% - 32px);
}
.select-hint.show { display: flex; }

.blist { list-style: none; padding: 0; margin: 0; }
.blist li { display: flex; gap: 10px; align-items: baseline; padding: 8px 0; border-bottom: 1px solid var(--line); }
.blist li .dates { min-width: 120px; font-weight: 600; }
.blist li a { text-decoration: none; color: inherit; }

.quote { margin: 4px 0 14px; padding: 10px; border-radius: 8px; background: var(--bg); border: 1px dashed var(--line); font-size: 14px; }
.quote .bad { color: var(--danger); font-weight: 600; }

h3 { font-size: 16px; margin: 20px 0 8px; }

/* ---------- статусы */
.status { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.status-confirmed { background: var(--ok-bg); color: var(--ok-text); }
.status-request { background: var(--req-bg); color: var(--req-text); }
.status-cancelled { background: var(--line); color: var(--muted); }
.ok-text { color: var(--ok-text); font-weight: 600; }
.warn-text { color: var(--warn-text); font-weight: 600; }
.due-text { color: var(--danger); font-weight: 600; }

/* ---------- переключатель (статус, тип) */
.form .field { margin: 0 0 12px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg); }
.seg-item { position: relative; margin: 0 !important; font-weight: 500 !important; cursor: pointer; }
.seg-item input { position: absolute; opacity: 0; pointer-events: none; }
.seg-item span { display: block; padding: 7px 14px; border-right: 1px solid var(--line); }
.seg-item:last-child span { border-right: 0; }
.seg-item input:checked + span { background: var(--accent); color: var(--accent-text); }
.seg-status .seg-confirmed input:checked + span { background: var(--ok-strong); color: #fff; }
.seg-status .seg-request input:checked + span { background: var(--req-strong); color: #fff; }
.seg-status .seg-cancelled input:checked + span { background: var(--muted); color: var(--card); }
.seg-item input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: -2px; }
.seg-item input:disabled + span { cursor: not-allowed; opacity: .7; }

/* ---------- платежи */
.pay-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 12px; }
.pay-summary > div { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.pay-summary b { font-size: 20px; font-variant-numeric: tabular-nums; }
.progress { height: 8px; border-radius: 4px; background: var(--line); overflow: hidden; margin-bottom: 16px; }
.progress span { display: block; height: 100%; background: var(--ok-strong); border-radius: 4px; }
.badge.pay-paid { background: var(--ok-bg); color: var(--ok-text); }
.badge.pay-partial { background: var(--warn-bg); color: var(--warn-text); }
.badge.pay-unpaid { background: var(--err-bg); color: var(--err-text); }
.badge.pay-overpaid { background: var(--req-bg); color: var(--req-text); }
.pay-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0 12px; }
.pay-form .wide { grid-column: 1 / -1; }
.pay-form .wide input { max-width: none; }

/* ---------- статистика */
.filters { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin-bottom: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); font-size: 14px; cursor: pointer; white-space: nowrap;
}
.chip span:hover { background: var(--bg); }
.chip input:checked + span { background: var(--text); color: var(--card); border-color: var(--text); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.custom-range { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.custom-range input {
  padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--card); color: var(--text); font: inherit;
}

.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; min-width: 0;
}
.kpi-label { font-size: 13px; color: var(--muted); }
.kpi-value { font-size: 26px; font-weight: 650; line-height: 1.15; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.kpi.hero { grid-column: span 2; }
.kpi.hero .kpi-value { font-size: 48px; }
.kpi-sub { font-size: 12px; color: var(--muted); }
.delta { font-size: 13px; font-weight: 600; }
.delta.up { color: var(--ok-text); }
.delta.down { color: var(--danger); }
.delta.flat { color: var(--muted); }
.delta .muted { font-weight: 400; }

.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 16px; margin-bottom: 16px; align-items: start; }
.chart-card { margin: 0; min-width: 0; }
.chart-card figcaption { margin-bottom: 12px; }
.chart-card figcaption h2 { margin: 0 0 2px; font-size: 16px; }
.chart-box { position: relative; height: 220px; }
.chart-card details { margin-top: 10px; font-size: 13px; }
.chart-card summary { cursor: pointer; color: var(--muted); }
.chart-card table.list { margin-top: 6px; }

@media (max-width: 480px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi { padding: 12px; }
  .kpi.hero { grid-column: 1 / -1; }
  .kpi.hero .kpi-value { font-size: 40px; }
  .kpi-value { font-size: 21px; }
}