:root {
  --bg: #14120e;
  --paper: #1e1b16;
  --ink: #efe6d6;
  --muted: #b7aa94;
  --line: #3a3429;
  --accent: #d4773b;
  --go: #7d9a62;
  --danger: #c45c4a;
  --heat: #3d6b3a;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--ink); }
body {
  font: 16px/1.45 "Segoe UI", system-ui, sans-serif;
}

#app { max-width: 34rem; margin: 0 auto; padding: 1.25rem 1rem 3rem; }

h1, h2, .clock {
  font-family: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  font-weight: 600;
}
h1 { font-size: 1.45rem; margin: 0 0 0.25rem; }
h2 { font-size: 1.1rem; margin: 1.25rem 0 0.5rem; }

.hint { color: var(--muted); font-size: 0.78rem; margin: 0.15rem 0 0.45rem; }
.btn-block { display: flex; flex-direction: column; align-items: stretch; gap: 0.15rem; flex: 1; min-width: 8rem; }
.btn-block button { width: 100%; }
.guide { font-size: 0.9rem; color: var(--muted); margin: 0 0 1rem; }
.mode { letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.72rem; color: var(--accent); margin: 0 0 0.5rem; }

nav {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.6rem;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
}
nav a.on { color: var(--ink); background: var(--paper); }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.05rem;
}

.title { font-size: 1.25rem; margin: 0 0 0.35rem; }
.note-prev { color: var(--muted); font-style: italic; margin: 0.35rem 0; }

.clock {
  font-size: 3.4rem;
  letter-spacing: 0.04em;
  text-align: center;
  margin: 0.6rem 0 0.8rem;
  font-variant-numeric: tabular-nums;
}

.row { display: flex; flex-wrap: wrap; gap: 0.45rem; align-items: center; }
.row > * { margin: 0; }

button, .btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #2a261f;
  color: var(--ink);
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
}
button.primary { background: var(--go); border-color: #6a8754; color: #14120e; font-weight: 600; }
button.accent { background: var(--accent); border-color: #b8642e; color: #14120e; font-weight: 600; }
button.danger { background: transparent; border-color: var(--danger); color: #e8b4ab; }
button:disabled { opacity: 0.45; cursor: default; }

input, select, textarea {
  width: 100%;
  background: #14120e;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.5rem 0.6rem;
  border-radius: 8px;
  font: inherit;
}
label { display: block; font-size: 0.82rem; color: var(--muted); margin: 0.65rem 0 0.25rem; }

.list { list-style: none; padding: 0; margin: 0; }
.list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
}

.heat {
  display: grid;
  grid-template-rows: repeat(7, 10px);
  grid-auto-flow: column;
  gap: 3px;
  overflow-x: auto;
  padding: 0.2rem 0 0.6rem;
}
.heat i {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: #2a261f;
  display: block;
}
.heat i.on { background: var(--heat); }
.heat i.hot { background: #7d9a62; }
.heat i.blaze { background: #c4d47a; }

a.link { color: var(--accent); }
.stats { display: flex; gap: 1rem; margin: 0.5rem 0 1rem; }
.stats b { display: block; font-size: 1.4rem; font-family: Georgia, serif; }
.breath { text-align: center; color: var(--muted); min-height: 2.4rem; }

#modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(0,0,0,.55);
  display: grid;
  place-items: center;
  padding: 1rem;
}
#modal[hidden] { display: none; }
#modal .sheet {
  width: min(22rem, 100%);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.05rem;
}
#modal h2 { margin-top: 0; }
#modal .row { margin-top: 0.85rem; }