:root {
  --ink: #111612;
  --ink-soft: #4f5a52;
  --paper: #f5f4ef;
  --surface: #fffefa;
  --line: rgba(17, 22, 18, 0.14);
  --green: #00663f;
  --green-dark: #003f29;
  --wine: #8b1630;
  --lime: #c8ff69;
  --radius-sm: 0.75rem;
  --radius-md: 1.25rem;
  --shadow: 0 24px 70px rgba(14, 31, 21, 0.08);
  --container: min(1180px, calc(100% - 2rem));
  --font-sans: 'Avenir Next', Avenir, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', ui-monospace, monospace;
  --ok: var(--green);
  --no: #b5475f;
  --cell-h: 22px;
}

* { box-sizing: border-box; }
html { background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 85% 4%, rgba(0, 102, 63, 0.09), transparent 24rem), var(--paper);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed; z-index: -1; inset: 0; content: '';
  background-image: linear-gradient(rgba(17, 22, 18, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 22, 18, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}
a { color: inherit; text-decoration: none; }
button, select { font: inherit; color: inherit; }
code { font-family: var(--font-mono); font-size: 0.9em; background: rgba(17, 22, 18, 0.06); padding: 0.1em 0.35em; border-radius: 0.35em; }
.container { width: var(--container); margin-inline: auto; }
[hidden] { display: none !important; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(245, 244, 239, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; min-height: 4.5rem; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: 0.75rem; font-weight: 800; letter-spacing: -0.03em; }
.brand img { width: 2.4rem; height: 2.4rem; border-radius: 50%; }
.brand span { display: grid; line-height: 1.05; }
.brand small { color: var(--ink-soft); font-family: var(--font-mono); font-size: 0.6rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; }

.tabs { display: flex; gap: 0.25rem; padding: 0.25rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }
.tab { border: 0; background: transparent; padding: 0.45rem 0.95rem; border-radius: 999px; font-size: 0.88rem; font-weight: 700; cursor: pointer; }
.tab.is-on { background: var(--ink); color: white; }
.tab:disabled { opacity: 0.4; cursor: default; }

main { padding-block: 2rem 4rem; }
.intro { margin-bottom: 1.25rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem; margin: 0 0 0.6rem;
  color: var(--green); font-family: var(--font-mono); font-size: 0.74rem; font-weight: 500;
  letter-spacing: 0.09em; text-transform: uppercase;
}
.eyebrow::before { width: 1.6rem; height: 1px; background: currentColor; content: ''; }
h1 { margin: 0 0 0.6rem; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.05; letter-spacing: -0.045em; }
.lede { max-width: 680px; margin: 0; color: var(--ink-soft); font-size: 1.02rem; }
.lede .ok { color: var(--ok); }
.lede .no { color: var(--no); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 1rem; box-shadow: var(--shadow); }
.card + .card, .card + .grid-card { margin-top: 0.75rem; }
.gate { max-width: 640px; margin-top: 2rem; padding: 2rem; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem; margin-bottom: 0.75rem; padding: 0.6rem; }
.toolbar__right { display: flex; align-items: center; gap: 0.75rem; margin-left: auto; }
.seg { display: inline-flex; gap: 0.25rem; padding: 0.2rem; border-radius: 999px; background: rgba(17, 22, 18, 0.05); }
.seg__btn { display: inline-flex; align-items: center; gap: 0.45rem; border: 0; background: transparent; padding: 0.5rem 0.9rem; border-radius: 999px; font-size: 0.88rem; font-weight: 700; cursor: pointer; }
.seg__btn.is-on { background: var(--ink); color: white; }
.dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; display: inline-block; }
.dot--ok { background: var(--ok); }
.dot--no { background: var(--no); }
.dot--empty { background: var(--surface); border: 1px solid var(--line); }
.save { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-soft); }
.save.is-err { color: var(--wine); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.6rem 1.1rem; border: 1px solid var(--ink); border-radius: 999px; font-size: 0.88rem; font-weight: 700; cursor: pointer; background: var(--ink); color: white; transition: transform 180ms ease, background 180ms ease, color 180ms ease; }
.button:hover { transform: translateY(-1px); background: var(--lime); color: var(--ink); }
.button--ghost { background: transparent; color: var(--ink); }
.button--sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }

.field { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; font-weight: 700; color: var(--ink-soft); }
.field select { padding: 0.45rem 2rem 0.45rem 0.8rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); font-weight: 700; color: var(--ink); }

.grid-card { padding: 0.75rem; }
.grid {
  display: grid;
  grid-template-columns: 2.6rem repeat(7, minmax(0, 1fr));
  gap: 2px;
  user-select: none;
  -webkit-user-select: none;
}
.grid--edit { touch-action: none; }
.grid .head { position: sticky; top: 4.6rem; z-index: 2; padding: 0.35rem 0; text-align: center; font-size: 0.78rem; font-weight: 800; background: var(--surface); border-radius: 0.5rem; }
.grid--edit .head { cursor: pointer; }
.grid--edit .head:hover, .grid .head.is-src { background: var(--lime); }
.grid .time { font-family: var(--font-mono); font-size: 0.66rem; color: var(--ink-soft); text-align: right; padding-right: 0.35rem; line-height: 1; transform: translateY(-0.3em); }
.cell { height: var(--cell-h); border-radius: 5px; background: rgba(17, 22, 18, 0.045); border: 1px solid transparent; }
.cell.hour { box-shadow: inset 0 1px 0 rgba(17, 22, 18, 0.08); }
.grid--edit .cell { cursor: crosshair; }
.cell[data-v="1"] { background: var(--ok); }
.cell[data-v="2"] { background: var(--no); opacity: 0.85; }
.grid--heat .cell { position: relative; cursor: pointer; font-size: 0.66rem; font-weight: 800; display: grid; place-items: center; color: var(--ink); }
.grid--heat .cell.is-sel { outline: 2px solid var(--ink); outline-offset: -1px; }
.grid--heat .cell.is-sug { border-color: var(--lime); box-shadow: inset 0 0 0 2px var(--lime); }
.hint { margin: 0.6rem 0 0; color: var(--ink-soft); font-size: 0.82rem; }

.copybar, .personbar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin-bottom: 0.75rem; padding: 0.6rem 0.8rem; font-size: 0.86rem; font-weight: 700; }
.chip { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 0.3rem 0.75rem; font-size: 0.8rem; font-weight: 700; cursor: pointer; }
.chip:hover { background: var(--lime); }
.chip--dark { background: var(--ink); color: white; border-color: var(--ink); }

.team-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 0.75rem; align-items: start; }
.side .card { padding: 1rem 1.1rem; }
.suggestions { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.45rem; }
.suggestions li { cursor: pointer; }
.suggestions b { display: block; }
.suggestions small, .muted { color: var(--ink-soft); font-size: 0.8rem; }
.people { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.people button { width: 100%; display: flex; justify-content: space-between; gap: 0.5rem; border: 0; background: transparent; padding: 0.35rem 0.4rem; border-radius: 0.5rem; text-align: left; cursor: pointer; font-size: 0.88rem; }
.people button:hover { background: rgba(17, 22, 18, 0.05); }
.tag { font-family: var(--font-mono); font-size: 0.66rem; color: var(--ink-soft); }
.tag--miss { color: var(--wine); }
.who { margin: 0 0 0.6rem; font-size: 0.88rem; }
.who b { display: block; font-size: 0.72rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); }
.who--ok b { color: var(--ok); }
.who--no b { color: var(--no); }

@media (max-width: 860px) {
  .team-layout { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  :root { --container: calc(100% - 1rem); --cell-h: 20px; }
  .nav { min-height: 4rem; }
  .brand small { display: none; }
  .tab { padding: 0.4rem 0.7rem; font-size: 0.8rem; }
  .grid { grid-template-columns: 2.1rem repeat(7, minmax(0, 1fr)); }
  .grid .head { top: 4.1rem; font-size: 0.7rem; }
  .seg__btn { padding: 0.45rem 0.65rem; font-size: 0.8rem; }
  .grid-card { padding: 0.4rem; }
  .card { border-radius: var(--radius-sm); }
}