:root {
  --bg: #f7f3ee;
  --card: #ffffff;
  --ink: #2a2622;
  --muted: #8a8178;
  --line: #e7dfd5;
  --accent: #c2703d;
  --accent-ink: #ffffff;
  --nicu: #1f5f8b;
  --nicu-bg: #e3eef7;
  --b: #2f7a5b;
  --m: #a24c7a;
  --today: #fff4e3;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 2px 8px rgba(0,0,0,.04);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1b1917; --card: #262320; --ink: #eee7df; --muted: #9c9389; --line: #3a3530;
    --accent: #e08a52; --nicu: #8ec5ee; --nicu-bg: #1d3446; --b: #7cc9a6; --m: #e39bc2; --today: #33291d;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg: #1b1917; --card: #262320; --ink: #eee7df; --muted: #9c9389; --line: #3a3530;
  --accent: #e08a52; --nicu: #8ec5ee; --nicu-bg: #1d3446; --b: #7cc9a6; --m: #e39bc2; --today: #33291d;
  --shadow: none;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
main { max-width: 1100px; margin: 0 auto; padding: 12px 16px 120px; }
h1 { font-size: 1.4rem; margin: 4px 0 0; }
h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 22px 0 8px; }
button { font: inherit; color: inherit; }
.muted { color: var(--muted); }
.tbc { color: var(--muted); font-style: italic; }

/* PIN gate */
.gate { min-height: 70vh; display: grid; place-items: center; text-align: center; }
.gate form { display: grid; gap: 12px; width: min(280px, 100%); }
.gate input { font-size: 1.6rem; text-align: center; letter-spacing: .3em; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.btn { border: 0; border-radius: 12px; padding: 12px 16px; background: var(--accent); color: var(--accent-ink); font-weight: 600; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.small { padding: 6px 10px; font-size: .85rem; font-weight: 500; }

/* header */
.top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.top .sub { font-size: .85rem; color: var(--muted); }
.controls { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg button { border: 0; background: transparent; padding: 6px 12px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

.weight { margin-top: 12px; background: var(--card); border-radius: 14px; padding: 10px 14px; box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px; }
.weight .num { font-size: 1.3rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.weight .delta { font-size: .85rem; color: var(--muted); }
.weight svg { flex: 1; height: 40px; min-width: 60px; }
.weight .spark { fill: none; stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
.weight .dot { fill: var(--accent); }

/* date tabs */
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 14px 0 4px; scrollbar-width: none; scroll-snap-type: x proximity; }
.tabs::-webkit-scrollbar { display: none; }
.tab { flex: 0 0 auto; border: 1px solid var(--line); background: var(--card); border-radius: 12px; padding: 6px 10px; text-align: center; cursor: pointer; scroll-snap-align: center; min-width: 54px; }
.tab .dow { font-size: .7rem; text-transform: uppercase; color: var(--muted); display: block; }
.tab .dn { font-weight: 700; font-size: 1.05rem; }
.tab.today { border-color: var(--accent); }
.tab[aria-selected="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.tab[aria-selected="true"] .dow { color: inherit; opacity: .8; }
.tab .pip { display: block; height: 4px; margin: 3px auto 0; width: 4px; border-radius: 2px; background: var(--nicu); }

.dayhead { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-top: 10px; }
.dayhead h3 { margin: 0; font-size: 1.15rem; }

/* cards */
.slots { display: grid; gap: 8px; }
.slot { background: var(--card); border-radius: 14px; padding: 10px 12px; box-shadow: var(--shadow); display: grid; grid-template-columns: 68px 1fr; gap: 4px 10px; align-items: start; }
.slot.nicu { outline: 2px solid var(--nicu); background: linear-gradient(0deg, var(--nicu-bg), var(--nicu-bg)); }
.slot.now { box-shadow: 0 0 0 3px var(--accent); }
.slot .time { font-weight: 700; font-size: 1.1rem; font-variant-numeric: tabular-nums; }
.slot .time small { display: block; font-weight: 400; font-size: .7rem; color: var(--muted); }
.lanes { display: grid; gap: 3px; min-width: 0; }
.lane { display: flex; gap: 6px; align-items: baseline; min-width: 0; }
.who { flex: 0 0 auto; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; width: 58px; }
.who.b { color: var(--b); } .who.m { color: var(--m); } .who.n { color: var(--muted); }
.badge { display: inline-flex; align-items: center; gap: 4px; background: var(--nicu); color: var(--bg); border-radius: 999px; padding: 2px 10px; font-size: .8rem; font-weight: 700; }
.nicu-toggle { display: inline-flex; gap: 6px; align-items: center; font-size: .85rem; cursor: pointer; }
.nicu-toggle input { width: 18px; height: 18px; accent-color: var(--nicu); }

.rows { background: var(--card); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.row { padding: 10px 12px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 88px 1fr; gap: 4px 10px; }
.row:first-child { border-top: 0; }
.row .k { font-weight: 600; text-transform: capitalize; }
.fields { display: grid; gap: 3px; min-width: 0; }
.fl { display: flex; gap: 6px; align-items: baseline; min-width: 0; }
.fl .lbl { font-size: .72rem; text-transform: uppercase; color: var(--muted); width: 48px; flex: 0 0 auto; }

/* editable */
.v { min-width: 0; overflow-wrap: anywhere; flex: 1; }
.editing .v { border-radius: 6px; padding: 1px 4px; margin: -1px -4px; outline: 1px dashed transparent; cursor: text; }
.editing .v:hover { outline-color: var(--line); }
.editing .v:focus { outline: 2px solid var(--accent); background: var(--bg); font-style: normal; color: var(--ink); }
.notes .v { display: block; padding: 10px 12px; background: var(--card); border-radius: 14px; box-shadow: var(--shadow); min-height: 2.6em; white-space: pre-wrap; }

/* week grid */
.gridwrap { overflow-x: auto; margin-top: 14px; border-radius: 14px; background: var(--card); box-shadow: var(--shadow); }
table.week { border-collapse: collapse; font-size: .8rem; min-width: 100%; }
.week th, .week td { border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); padding: 6px 8px; vertical-align: top; min-width: 120px; text-align: left; }
.week th:first-child, .week td:first-child { position: sticky; left: 0; background: var(--card); min-width: 84px; border-left: 0; font-weight: 700; z-index: 1; }
.week thead th { cursor: pointer; white-space: nowrap; }
.week thead th.today { background: var(--today); }
.week td.nicu { background: var(--nicu-bg); }
.week .sec td { background: var(--bg); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.week .l { display: block; } .week .l b { font-weight: 700; }

/* voice */
.fab { position: fixed; right: 18px; bottom: calc(18px + env(safe-area-inset-bottom)); width: 62px; height: 62px; border-radius: 50%; border: 0; background: var(--accent); color: var(--accent-ink); font-size: 1.6rem; box-shadow: 0 6px 20px rgba(0,0,0,.25); cursor: pointer; z-index: 20; }
.sheet-bg { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 30; display: flex; align-items: flex-end; justify-content: center; }
.sheet { background: var(--card); width: min(640px, 100%); border-radius: 18px 18px 0 0; padding: 16px 16px calc(16px + env(safe-area-inset-bottom)); display: grid; gap: 12px; max-height: 85vh; overflow-y: auto; }
.sheet h3 { margin: 0; }
.sheet textarea { width: 100%; min-height: 96px; font: inherit; padding: 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); resize: vertical; }
.sheet .acts { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.mic.on { background: #c0392b; }
.proposals { display: grid; gap: 6px; }
.proposals label { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; }
.proposals input { width: 18px; height: 18px; margin-top: 2px; }

#toast { position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 12px; z-index: 40; font-size: .9rem; max-width: calc(100% - 32px); }

.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: .8rem; color: var(--muted); margin-top: 8px; }
.foot { margin-top: 28px; font-size: .8rem; color: var(--muted); display: flex; gap: 12px; flex-wrap: wrap; }
.foot button { background: none; border: 0; padding: 0; text-decoration: underline; color: var(--muted); cursor: pointer; font-size: .8rem; }

@media (min-width: 900px) {
  .slots { grid-template-columns: repeat(2, 1fr); }
  .daycols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
}