:root {
  --bg: #EBE8DC;
  --accent: #4F6F52;
  --text: #1a1a1a;
  --border: rgba(26, 26, 26, 0.35);
  --muted: rgba(26, 26, 26, 0.55);
  --danger: #8a3b2e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  line-height: 1.5;
  padding-bottom: calc(4rem + env(safe-area-inset-bottom));
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.9rem 1rem 0.6rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  padding-top: calc(0.9rem + env(safe-area-inset-top));
}
.brand { font-weight: 700; letter-spacing: 0.15em; font-size: 0.85rem; }
.topdate { font-size: 0.7rem; color: var(--muted); }

main { padding: 0.75rem; max-width: 640px; margin: 0 auto; }

.card {
  border: 1px solid var(--border);
  padding: 0.85rem;
  margin-bottom: 0.75rem;
  background: rgba(255, 255, 255, 0.25);
}
.card.notice { border-color: var(--accent); }

.label {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.bignum { font-size: 1.6rem; font-weight: 700; }
.unit { font-size: 0.8rem; font-weight: 400; color: var(--muted); }
.pos { color: var(--accent); font-weight: 500; }
.neg { color: var(--danger); font-weight: 500; }
.muted { color: var(--muted); }
.small { font-size: 0.75rem; }
.mono-strong { font-weight: 700; }
.strike { text-decoration: line-through; color: var(--muted); }
.brief { white-space: pre-wrap; }

.btn {
  display: inline-block;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 0.8rem;
  margin-top: 0.5rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn.full { display: block; width: 100%; }
.btn.big-plus { font-size: 0.95rem; padding: 1rem; }
.small-btn { padding: 0.3rem 0.5rem; font-size: 0.62rem; list-style: none; display: inline-block; }
details summary::-webkit-details-marker { display: none; }

input, select {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.5);
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.6rem;
  color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--accent); }
label { font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); display: block; }
label input { margin-top: 0.2rem; }
.stack > * { margin-top: 0.5rem; }
.stack > *:first-child { margin-top: 0; }
.hidden-input { display: none; }

.flashes { max-width: 640px; margin: 0.5rem auto 0; padding: 0 0.75rem; }
.flash {
  border: 1px solid var(--accent);
  background: rgba(79, 111, 82, 0.1);
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}

.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 10;
}
.tabbar a {
  flex: 1;
  text-align: center;
  padding: 0.9rem 0;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-decoration: none;
  border-right: 1px solid var(--border);
}
.tabbar a:last-child { border-right: none; }
.tabbar a.active { color: var(--accent); font-weight: 700; border-top: 2px solid var(--accent); margin-top: -1px; }

.login-wrap { margin-top: 20vh; }

.meter { height: 6px; border: 1px solid var(--border); margin: 0.4rem 0; }
.meter-fill { height: 100%; background: var(--accent); }

.habit-row { display: flex; align-items: center; gap: 0.6rem; padding: 0.3rem 0; }
.check {
  width: 1.7rem; height: 1.7rem;
  border: 1px solid var(--text);
  background: transparent;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}
.check.done { background: var(--accent); border-color: var(--accent); color: var(--bg); }

.heatmap {
  display: grid;
  grid-template-rows: repeat(7, 10px);
  grid-auto-flow: column;
  gap: 2px;
  overflow-x: auto;
  padding: 0.25rem 0;
}
.cell { width: 10px; height: 10px; border: 1px solid rgba(26,26,26,0.15); }
.cell.done { background: var(--accent); border-color: var(--accent); }
.cell.miss { background: rgba(26,26,26,0.05); }
.cell.off { background: transparent; border-style: dotted; }
.cell.future { border-color: rgba(26,26,26,0.05); }

.row-line { padding: 0.25rem 0; border-bottom: 1px dotted var(--border); }
.row-line:last-of-type { border-bottom: none; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.row-actions { display: flex; gap: 0.3rem; }
.row-actions .btn { margin-top: 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
th {
  text-align: left;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding: 0.3rem 0.4rem;
}
td { padding: 0.4rem; border-bottom: 1px dotted var(--border); vertical-align: top; }

.chart-wrap { position: relative; height: 220px; }
.chart-wrap.short { height: 160px; }

.meal { border-bottom: 1px solid var(--border); padding: 0.6rem 0; }
.meal:last-of-type { border-bottom: none; }
.meal-photo { max-width: 100%; border: 1px solid var(--border); margin: 0.4rem 0; }

.item-block { border: 1px dotted var(--border); padding: 0.5rem; margin-bottom: 0.5rem; }
.item-block input { margin-bottom: 0.3rem; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.3rem; }

.weekday-picker { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.daybox {
  border: 1px solid var(--border);
  padding: 0.4rem 0.5rem;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.daybox input { width: auto; }