:root {
  --ink: #1b1b1b;
  --paper: #fbfaf7;
  --line: #d8d4cc;
  --accent: #2f6f4e;
  --warn: #8a4b1f;
  --level-0: #eeeae2;
  --level-1: #d7e4d2;
  --level-2: #b2cfae;
  --level-3: #7fb389;
  --level-4: #3f8b5e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 1rem 3rem;
  font: 16px/1.5 system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

main { max-width: 52rem; margin: 0 auto; }

h1 { font-size: 1.6rem; }
h2 { font-size: 1.15rem; }

.banner {
  background: var(--warn);
  color: #fff;
  padding: 0.6rem 1rem;
  margin: 0 -1rem 1rem;
}

.nav {
  display: flex;
  gap: 1rem;
  max-width: 52rem;
  margin: 0 auto;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.nav a { color: var(--accent); text-decoration: none; }

button {
  font: inherit;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
}

button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: default; }

.channel-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.channel.is-active { background: var(--accent); color: #fff; border-color: var(--accent); }

.card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1rem;
  margin: 1rem 0;
  background: #fff;
}

.notice { background: #fff4e0; border-left: 4px solid var(--warn); padding: 0.75rem; }

.unit-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}

.unit-meta { color: #5c5850; font-size: 0.9rem; }

.pill { font-size: 0.8rem; padding: 0.1rem 0.5rem; border-radius: 999px; border: 1px solid var(--line); }
.pill-open { background: var(--level-2); }
.pill-closed { background: var(--level-0); }

.chip {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
}

.progress-bar { height: 6px; background: var(--level-0); border-radius: 3px; margin: 0.5rem 0 1rem; }
.progress-bar > div { height: 100%; background: var(--accent); border-radius: 3px; }

.photo { max-width: 100%; max-height: 22rem; border: 1px solid var(--line); background: #fff; }
.photo-pair { display: flex; gap: 1rem; flex-wrap: wrap; }
.attribution { font-size: 0.8rem; color: #5c5850; }

.options { display: flex; flex-direction: column; gap: 0.5rem; margin: 1rem 0; }
.options.inv { flex-direction: row; flex-wrap: wrap; }
.options.inv img { width: 9rem; height: 9rem; object-fit: cover; }
.option-sub { display: block; font-style: italic; color: #5c5850; font-size: 0.85rem; }

.grid { border-collapse: collapse; width: 100%; }
.grid th, .grid td { border: 1px solid var(--line); padding: 0.3rem 0.5rem; text-align: left; }
.grid td.cell { text-align: center; width: 3rem; }
.lv-0 { background: var(--level-0); }
.lv-1 { background: var(--level-1); }
.lv-2 { background: var(--level-2); }
.lv-3 { background: var(--level-3); }
.lv-4 { background: var(--level-4); color: #fff; }
.cell-empty { background: repeating-linear-gradient(45deg, #fff, #fff 4px, #eee 4px, #eee 8px); }

.error { border: 2px solid var(--warn); padding: 1rem; margin-top: 1rem; }

label { display: block; margin: 0.75rem 0; }
input[type="number"], input[type="text"] { font: inherit; padding: 0.3rem; border: 1px solid var(--line); border-radius: 4px; }