/* ---------------------------------------------------------------- токены */
:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-2: #fbfbfd;
  --ink: #14161a;
  --ink-2: #5b6270;
  --ink-3: #8d95a3;
  --line: #e4e7ec;
  --line-2: #d3d8e0;

  --free-bg: #e9f8ee;
  --free-bg-hover: #d6f2e0;
  --free-ink: #12703c;
  --free-line: #9fdcb6;

  --busy-bg: #f0f1f4;
  --busy-ink: #8a909c;
  --busy-line: #e0e2e8;

  --mine-bg: #e8eeff;
  --mine-ink: #2647c4;
  --mine-line: #a9bcfb;

  --accent: #2f5bea;
  --accent-ink: #ffffff;
  --danger: #c0392b;

  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 1px 2px rgba(18, 22, 31, .05), 0 8px 24px -12px rgba(18, 22, 31, .18);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --panel: #171a1f;
    --panel-2: #1d2127;
    --ink: #eef1f5;
    --ink-2: #a4acba;
    --ink-3: #767f8e;
    --line: #262b33;
    --line-2: #333944;

    --free-bg: #10281b;
    --free-bg-hover: #173926;
    --free-ink: #6ee7a0;
    --free-line: #26543a;

    --busy-bg: #1c2027;
    --busy-ink: #6d7583;
    --busy-line: #262b33;

    --mine-bg: #182140;
    --mine-ink: #9db4ff;
    --mine-line: #2f3f75;

    --accent: #4f76ff;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -14px rgba(0, 0, 0, .8);
  }
}

* { box-sizing: border-box; }

/* атрибут hidden должен побеждать любые display-правила ниже */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 16px calc(40px + env(safe-area-inset-bottom));
}

/* ----------------------------------------------------------------- шапка */
.head {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 20px;
}
h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: -.03em;
  font-weight: 700;
}
.subtitle { margin: 4px 0 0; color: var(--ink-2); }
.head-side { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }

.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.dot-free { background: var(--free-ink); }
.dot-busy { background: var(--busy-ink); }
.dot-mine { background: var(--mine-ink); }

.switch {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--ink-2);
  cursor: pointer; user-select: none;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}
.switch input { accent-color: var(--accent); margin: 0; }

/* ------------------------------------------------------------- мои записи */
.mine-card {
  background: var(--panel);
  border: 1px solid var(--mine-line);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}
.mine-card h2 { margin: 0 0 8px; font-size: 14px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-2); }
.mine-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.mine-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--mine-bg); color: var(--mine-ink);
  border-radius: var(--radius); padding: 9px 12px; font-weight: 600;
}
.mine-when { font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------------ доска */
.board { display: grid; gap: 26px; }
.skeleton { color: var(--ink-3); padding: 40px 0; text-align: center; }

.week-title {
  display: flex; align-items: baseline; gap: 10px;
  margin: 0 0 10px; font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3);
}
.week-title span { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--ink-3); }

.week {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.day {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 96px;
}
.day.is-today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.day.is-past { opacity: .5; }

.day-head { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; padding: 2px 4px 6px; border-bottom: 1px dashed var(--line); }
.day-name { font-weight: 700; font-size: 14px; }
.day-date { font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.day.is-today .day-name { color: var(--accent); }

.slots { display: grid; gap: 6px; }
.day-empty { color: var(--ink-3); font-size: 13px; text-align: center; padding: 10px 0; }

/* ------------------------------------------------------------------ слоты */
.slot {
  appearance: none;
  width: 100%;
  border: 1px solid var(--busy-line);
  background: var(--busy-bg);
  color: var(--busy-ink);
  border-radius: var(--radius);
  padding: 9px 8px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
  text-align: center;
  cursor: default;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
  touch-action: manipulation;
}
.slot .slot-sub { display: block; font-size: 11px; font-weight: 500; opacity: .8; margin-top: 2px; }

.slot.free {
  background: var(--free-bg);
  border-color: var(--free-line);
  color: var(--free-ink);
  cursor: pointer;
}
.slot.free:hover { background: var(--free-bg-hover); transform: translateY(-1px); }
.slot.free:active { transform: translateY(0) scale(.985); }

.slot.mine {
  background: var(--mine-bg);
  border-color: var(--mine-line);
  color: var(--mine-ink);
  cursor: pointer;
}
.slot.past { opacity: .45; text-decoration: line-through; }
.slot.blocked {
  background:
    repeating-linear-gradient(135deg, transparent 0 6px, rgba(125, 133, 148, .13) 6px 12px),
    var(--busy-bg);
}
.slot:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------------------------------------------------------------- подвал */
.foot {
  margin-top: 26px; padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px;
  color: var(--ink-3); font-size: 12.5px;
}
.link {
  background: none; border: 0; padding: 0;
  color: var(--ink-2); font: inherit; cursor: pointer; text-decoration: underline;
}

/* ---------------------------------------------------------------- диалог */
.sheet {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: 0;
  width: min(440px, calc(100vw - 32px));
  box-shadow: 0 24px 60px -20px rgba(0, 0, 0, .45);
}
.sheet::backdrop { background: rgba(10, 12, 16, .5); backdrop-filter: blur(2px); }
.sheet form { padding: 18px; display: grid; gap: 14px; }

.sheet-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.sheet-kicker { margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.sheet-slot { margin: 2px 0 0; font-size: 19px; font-weight: 700; letter-spacing: -.02em; }
.icon-btn {
  border: 0; background: var(--panel-2); color: var(--ink-2);
  width: 30px; height: 30px; border-radius: 8px; cursor: pointer; font-size: 14px;
}

.field { display: grid; gap: 5px; font-size: 13px; color: var(--ink-2); }
.field .req { color: var(--danger); }
.field input, .field textarea {
  font: inherit; font-size: 15px; color: var(--ink);
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: 10px;
  padding: 10px 12px;
  width: 100%;
  resize: vertical;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.dlg-error {
  margin: 0; padding: 9px 12px; border-radius: 10px;
  background: rgba(192, 57, 43, .12); color: var(--danger); font-size: 13.5px;
}

.sheet-actions { display: flex; gap: 10px; justify-content: flex-end; }
.btn {
  font: inherit; font-weight: 600; font-size: 14.5px;
  border-radius: 10px; padding: 10px 16px;
  border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:disabled { opacity: .6; cursor: progress; }
.btn-ghost { background: transparent; color: var(--ink-2); border-color: var(--line-2); }
.btn-danger { background: transparent; color: var(--danger); border-color: currentColor; padding: 6px 12px; font-size: 13px; }

/* ------------------------------------------------------------------ тост */
.toast {
  position: fixed;
  left: 50%; bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  padding: 11px 18px; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow); z-index: 50;
  max-width: calc(100vw - 32px); text-align: center;
}
.toast.err { background: var(--danger); color: #fff; }

/* -------------------------------------------------------------- планшет */
@media (max-width: 1000px) {
  .week { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* -------------------------------------------------------------- мобильный */
@media (max-width: 680px) {
  .page { padding: 18px 12px calc(32px + env(safe-area-inset-bottom)); }
  h1 { font-size: 25px; }
  .head { align-items: flex-start; }
  .head-side { align-items: flex-start; width: 100%; flex-direction: row; justify-content: space-between; flex-wrap: wrap; }

  .week { grid-template-columns: 1fr; gap: 8px; }
  .day { min-height: 0; flex-direction: row; align-items: stretch; gap: 10px; padding: 10px 12px; }
  .day-head {
    flex-direction: column; align-items: flex-start; gap: 0;
    border-bottom: 0; border-right: 1px dashed var(--line);
    padding: 0 10px 0 0; min-width: 62px; justify-content: center;
  }
  .day-name { font-size: 15px; }
  .slots {
    flex: 1;
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
    align-content: center;
  }
  .day-empty { flex: 1; text-align: left; padding: 6px 0; }
  .slot { padding: 10px 6px; }

  .sheet {
    width: 100vw; max-width: 100vw;
    margin: auto auto 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    border-bottom: 0;
  }
  .sheet form { padding: 18px 16px calc(20px + env(safe-area-inset-bottom)); }
  .sheet-actions .btn { flex: 1; padding: 13px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}