:root {
  color-scheme: light;
  --ink: #1c1915;
  --muted: #5c564c;
  --paper: #f3efe6;
  --card: #fffdf8;
  --line: #d9d1c3;
  --green: #1f3a2e;
  --green-2: #2f5d45;
  --warn: #8a4b12;
  --warn-bg: #fff1dc;
  --bad: #8d1d1d;
  --bad-bg: #fde8e4;
  --mid: #8a5a12;
  --mid-bg: #fff6df;
  --short-bg: #e7f2ea;
  --short: #1f3a2e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.45 "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

a { color: var(--green-2); }

.top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: auto auto;
  gap: 8px 16px;
  align-items: center;
  padding: 14px 20px 0;
  background: var(--green);
  color: #f6f3ec;
}

.brand {
  color: inherit;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
  justify-self: center;
  grid-column: 2;
}

.links {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-self: end;
  grid-column: 3;
  grid-row: 1;
}

.links a { color: inherit; text-decoration: none; font-weight: 600; }
.links a:hover { text-decoration: underline; }

main { padding: 20px; max-width: 1200px; margin: 0 auto; }

h1, h2 { margin: 0 0 8px; }
h2 { font-size: 1.15rem; }

.lede, .empty { color: var(--muted); }
.error, .warn {
  padding: 10px 12px;
  border-radius: 8px;
}
.error { background: var(--bad-bg); color: var(--bad); }
.warn { background: var(--warn-bg); color: var(--warn); }

.search, .stack { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 12px 0 18px; }
.stack { flex-direction: column; align-items: stretch; max-width: 420px; }
label { font-weight: 600; }
input, textarea, button {
  font: inherit;
  color: inherit;
}
input[type="search"], input[type="date"], input[type="password"], input[type="file"], textarea {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}
textarea { width: 100%; min-height: 280px; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }

button, .choice {
  cursor: pointer;
}
button {
  border: 0;
  border-radius: 8px;
  padding: 8px 14px;
  background: var(--green);
  color: white;
  font-weight: 650;
}
button.ghost { background: transparent; color: var(--green); border: 1px solid var(--line); }
nav button { background: transparent; color: inherit; border: 1px solid rgba(255,255,255,0.35); padding: 4px 10px; }

nav.tabs {
  display: flex;
  justify-content: center;
  justify-self: center;
  align-self: stretch;
  width: 100%;
  grid-column: 1 / -1;
  grid-row: 2;
  gap: 8px;
  margin: 0;
  padding: 8px 0 0;
  background: transparent;
}
.tabs a {
  color: #f6f3ec;
  text-decoration: none;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 8px 8px 0 0;
}
.tabs a.on { background: var(--paper); color: var(--ink); }

fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
}
.choice { display: flex; gap: 8px; align-items: center; font-weight: 600; margin: 6px 0; }

.boards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.boards.one { grid-template-columns: 1fr; }
.flag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
}
.flag.yes, .flag.loaded { background: var(--bad-bg); color: var(--bad); }
.flag.no, .flag.empty { background: var(--short-bg); color: var(--short); }
.board, .stay {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
}
.board-head p { margin: 0; color: var(--muted); }
.sheet-pick { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0; }
.sheet-pick select { padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.sheet-count {
  display: inline-block;
  min-width: 1.6rem;
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1.2;
  text-align: center;
}
.unit-no {
  font-family: ui-monospace, Consolas, monospace;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--ink);
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 0.85rem; color: var(--muted); }
td a { font-family: ui-monospace, Consolas, monospace; font-weight: 700; text-decoration: none; }
.comment { color: var(--ink); font-weight: 500; max-width: 36rem; }
.hint { margin: 0; color: var(--muted); font-size: 0.92rem; }
.hint span { font-family: ui-monospace, Consolas, monospace; }
.preview { margin-bottom: 8px; }

.days {
  display: inline-block;
  min-width: 4.5rem;
  text-align: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
}
.days.short { background: var(--short-bg); color: var(--short); }
.days.mid { background: var(--mid-bg); color: var(--mid); }
.days.long { background: var(--bad-bg); color: var(--bad); }

.review {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: start;
}
iframe {
  width: 100%;
  height: 75vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}
.seen { padding-left: 18px; }
.crumb { margin-top: 0; }

@media (max-width: 800px) {
  .boards, .review { grid-template-columns: 1fr; }
  .top { grid-template-columns: 1fr; justify-items: center; }
  .brand, .links, nav.tabs { grid-column: 1; justify-self: center; }
  .links { grid-row: auto; }
  iframe { height: 55vh; }
  main { padding: 14px; }
}