:root {
  --bg: #f7f6f2;
  --card: #ffffff;
  --line: #e6e3da;
  --text: #22252b;
  --muted: #777b85;
  --accent: #2563c9;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171b;
    --card: #1e2126;
    --line: #2e323a;
    --text: #e8e9ec;
    --muted: #9296a0;
    --accent: #7aa9f5;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 20px clamp(16px, 4vw, 40px) 56px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

h3, h4, p, ul { margin: 0; }
code { font: 0.9em/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--accent); overflow-wrap: anywhere; }

.top, main { max-width: 1040px; margin-inline: auto; }
.top { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px; }
.brand { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.legend { color: var(--muted); font-size: 13px; }

.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn.primary { border-color: var(--text); background: var(--text); color: var(--bg); }

/* Картка дня */
.plan { display: grid; grid-template-columns: minmax(0, 1fr) 360px; align-items: start; gap: 24px; margin-top: 18px; }
.plan-cal { grid-column: 1; grid-row: 1; display: grid; gap: 22px; }
.plan-side { position: sticky; top: 16px; max-height: calc(100vh - 32px); overflow: auto; }
.card { padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.card header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card h3 { font-size: 17px; }
.badge-status { padding: 2px 10px; border-radius: 999px; background: var(--bg); color: var(--muted); font-size: 12px; font-weight: 600; }
.badge-status.сьогодні { background: var(--text); color: var(--bg); }
.part { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.part h4 { font-size: 15px; }
.block { color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.points { display: grid; gap: 6px; margin-top: 8px; padding-left: 18px; font-size: 14px; }
.review { margin-top: 8px; }
.review summary { font-weight: 600; cursor: pointer; }
.review .points { margin-top: 6px; }
.copy { width: 100%; }
.prompt { margin-top: 10px; color: var(--muted); font-size: 13px; }
.prompt summary { cursor: pointer; }
.prompt pre {
  max-height: 320px;
  margin: 8px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
  overflow: auto;
}

/* Календар */
.cal-month summary { margin-bottom: 8px; font-size: 16px; font-weight: 700; cursor: pointer; }
.cal-month summary::first-letter { text-transform: uppercase; }
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-week { padding: 2px 6px; color: var(--muted); font-size: 12px; }
.cal-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 84px;
  padding: 6px 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  text-align: left;
  overflow: hidden;
}
button.cal-cell { cursor: pointer; }
button.cal-cell:hover { border-color: var(--muted); }
.cal-cell.blank { border: 0; background: none; }
.cal-cell.out { border-style: dashed; background: none; }
.cal-num { color: var(--muted); font-size: 12px; font-weight: 600; }
.cal-title { font-size: 11.5px; font-weight: 600; line-height: 1.25; overflow-wrap: anywhere; }
.cal-rev {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.25;
}
.cal-title + .cal-rev { margin-top: auto; }
.cal-cell.past { background: none; }
.cal-cell.past .cal-title { color: var(--muted); font-weight: 500; }
.cal-cell.today { border-color: var(--text); border-width: 2px; padding: 5px 6px; }
.cal-cell.today .cal-num { color: var(--text); }
.cal-cell.on, .cal-row.on { outline: 2px solid var(--accent); outline-offset: 1px; }

/* На телефоні замість сітки — список днів, де все видно одразу */
.cal-list { display: none; gap: 4px; }
.cal-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.cal-date { color: var(--muted); font-size: 13px; }
.cal-what { display: grid; gap: 2px; }
.cal-what small { color: var(--muted); font-size: 12.5px; line-height: 1.35; }
.cal-row.past { background: none; }
.cal-row.past b { color: var(--muted); font-weight: 500; }
.cal-row.today { border-color: var(--text); border-width: 2px; }
.cal-row.today .cal-date { color: var(--text); font-weight: 700; }

@media (max-width: 900px) {
  .plan { grid-template-columns: minmax(0, 1fr); }
  .plan-cal { grid-row: auto; }
  .plan-side { position: static; max-height: none; }
}
@media (max-width: 640px) {
  .cal-grid { display: none; }
  .cal-list { display: grid; }
}