:root {
  --bg: #faf8f5;
  --card: #ffffff;
  --ink: #1f1b16;
  --muted: #8a8278;
  --line: #ece7df;
  --accent: #e0654b;
  --accent-ink: #ffffff;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.wrap {
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.brand {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
}
.brand:hover { color: var(--accent); }

h1 {
  margin: 0 0 6px;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
}
h2 { font-size: 1.15rem; margin: 0; }

.lede { margin: 0 0 28px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

section { margin-top: 36px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}
.tally { color: var(--muted); font-size: 0.9rem; }

/* Forms */
.field { display: block; margin-bottom: 20px; }
.field > span { display: block; font-weight: 600; margin-bottom: 8px; }
.field em { color: var(--muted); font-weight: 400; font-style: normal; }

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }

.hint { margin: 8px 0 0; color: var(--muted); font-size: 0.88rem; }

button { cursor: pointer; font: inherit; }

.primary {
  width: 100%;
  margin-top: 4px;
  padding: 13px;
  border: 0;
  border-radius: 11px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.primary:hover { filter: brightness(0.95); }

.ghost {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
}
.ghost:hover { border-color: var(--accent); color: var(--accent); }

.error {
  background: #fdece8;
  border: 1px solid #f3c4b8;
  color: #a33417;
  padding: 11px 14px;
  border-radius: 10px;
  margin: 0 0 16px;
}

/* Share row */
.share { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.share > span { font-weight: 600; }
.share input { flex: 1; min-width: 180px; }

/* Calendar */
.calendar { border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.cal-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.cal-month { font-weight: 600; }
.cal-nav {
  width: 34px; height: 34px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; font-size: 1.1rem; line-height: 1;
}
.cal-nav:hover { border-color: var(--accent); color: var(--accent); }
.cal-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px;
}
.cal-dow {
  text-align: center; font-size: 0.75rem; color: var(--muted);
  padding-bottom: 4px;
}
.cal-day {
  aspect-ratio: 1 / 1;
  border: 1px solid transparent;
  border-radius: 9px;
  background: #f4f1ec;
  color: var(--ink);
}
.cal-day:hover:not(:disabled) { border-color: var(--accent); }
.cal-day:disabled { color: #cdc7bd; background: transparent; cursor: default; }
.cal-day.on { background: var(--accent); color: var(--accent-ink); }

/* Heatmap */
.heatmap { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.day {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2px 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: color-mix(in srgb, var(--accent) calc(var(--fill, 0) * 78%), var(--card));
}
.day .date { font-weight: 600; }
.day .count {
  grid-row: 1 / 3;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--muted);
}
.day .who { grid-column: 1; font-size: 0.85rem; color: var(--muted); }
.day.best {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.day.best .count { color: var(--accent); }

/* Chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  position: relative;
}
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  user-select: none;
}
.chip:hover span { border-color: var(--accent); }
.chip input:checked + span {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }