/* huddee cal. Minimal, paper + ink, after huddee.com/learn (zn style):
   one ink colour, hairlines instead of boxes, serif headings, pill buttons, lots of air.
   Zen Old Mincho / Zen Kaku Gothic have no Vietnamese glyphs, so Spectral + Be Vietnam Pro stand in.
   Mobile first (SE 375px). Dark mode by system. */
@import url(/assets/fonts.css);

:root {
  --paper: #f7f5f0;
  --ink: #23211d;
  --soft: #23211d9e;   /* secondary text */
  --faint: #23211d24;  /* hairlines, hover */
  --whisper: #23211d0d;
  --danger: #a3341f;
  --head: "Spectral", "Hiragino Mincho ProN", Georgia, serif;
  --body: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141412;
    --ink: #e9e5db;
    --soft: #e9e5db99;
    --faint: #e9e5db29;
    --whisper: #e9e5db0f;
    --danger: #f0907a;
  }
}

/* A Brainy Chat (tenant theme "abc", TASK 007): brand navy #2c3479 on a light vanilla paper; dark = deep navy +
   brand vanilla #eddfd4. Same layout, only colours + logo. Dark block must come after the light one (same specificity). */
:root[data-theme="abc"] {
  --paper: #fbf7f3;
  --ink: #2c3479;
  --soft: #2c3479a8;
  --faint: #2c347926;
  --whisper: #2c34790d;
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="abc"] {
    --paper: #14183a;
    --ink: #eddfd4;
    --soft: #eddfd4a3;
    --faint: #eddfd42e;
    --whisper: #eddfd40f;
  }
}
.top .brand .logo { height: 36px; width: auto; display: block; }
.top .brand .logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .top .brand .logo-light { display: none; }
  .top .brand .logo-dark { display: block; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 .9375rem/1.8 var(--body); -webkit-font-smoothing: antialiased; }
::selection { background: var(--ink); color: var(--paper); }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
h1, h2, h3 { font-family: var(--head); font-weight: 400; letter-spacing: .01em; margin: 0 0 .5rem; }
h1 { font-size: clamp(1.75rem, 7vw, 2.25rem); line-height: 1.3; }
h2 { font-size: 1.375rem; line-height: 1.4; }
h3 { font-size: 1.125rem; line-height: 1.4; }
p { margin: 0 0 1rem; }
ul { margin: 0 0 1rem; padding-left: 1.2rem; }
hr { border: 0; border-top: 1px solid var(--faint); margin: 2.5rem 0; }

/* text helpers */
.muted { color: var(--soft); }
.small { font-size: .8125rem; }
.center { text-align: center; }
.eyebrow { font-size: .75rem; letter-spacing: .32em; text-transform: uppercase; color: var(--soft); margin: 0 0 1rem; }
.deck { color: var(--soft); }
.cap::first-letter { text-transform: uppercase; }
.pre { white-space: pre-line; }
.hidden { display: none !important; }

/* layout */
.top { display: flex; justify-content: space-between; align-items: center; gap: 0 1rem; flex-wrap: wrap;
  max-width: 36rem; margin: 0 auto; padding: .75rem 1.25rem; font-size: .8125rem; letter-spacing: .04em; color: var(--soft); }
.top .brand { color: var(--ink); min-height: 40px; display: inline-flex; align-items: center; }
.wrap, .narrow { max-width: 36rem; margin: 0 auto; padding: 0 1.25rem 5rem; }
.wide { max-width: 46rem; }
.hero { text-align: center; padding: 12vh 0 2.5rem; }
.hero.compact { padding-top: 6vh; padding-bottom: 1.5rem; }
.hero h1 { margin-bottom: .75rem; }
.hero .deck { margin: 0 auto; max-width: 28rem; }
.hero .desc { margin: 1.25rem auto 0; max-width: 28rem; text-align: left; color: var(--soft); }
.section { border-top: 1px solid var(--faint); padding-top: 2rem; margin-top: 1rem; }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.stack > * + * { margin-top: .75rem; }
.foot { color: var(--soft); font-size: .8125rem; text-align: center; padding-top: 4rem; }

/* old "card" = a quiet block separated by a hairline, no box */
.card { padding: 1.5rem 0; border-top: 1px solid var(--faint); }
.card:first-child { border-top: 0; }

/* buttons: outline pills; .primary = filled ink */
button, .btn {
  font: inherit; font-size: .875rem; line-height: 1.3; color: var(--ink); background: transparent;
  border: 1px solid var(--ink); border-radius: 999px; min-height: 44px; padding: .4rem 1.1rem;
  cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
}
button:hover, .btn:hover { background: var(--faint); }
button:disabled { opacity: .4; cursor: default; background: transparent; }
.primary { background: var(--ink); color: var(--paper); }
.primary:hover { background: var(--ink); opacity: .86; }
.danger { color: var(--danger); border-color: var(--danger); }
.link { border: 0; background: none; padding: .25rem 0; min-height: 40px; text-decoration: underline; text-underline-offset: .2em; text-decoration-thickness: 1px; }
.link:hover { background: none; }
.link.danger { color: var(--danger); }
.block { width: 100%; }
button:focus-visible, .btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.chip { font-size: .75rem; letter-spacing: .04em; padding: .1rem .6rem; border: 1px solid var(--faint); border-radius: 999px; color: var(--soft); }
.chip.warn { color: var(--danger); border-color: var(--danger); }

/* forms */
label { display: block; font-size: .8125rem; color: var(--soft); margin-bottom: .3rem; letter-spacing: .02em; }
input, textarea, select {
  font: inherit; font-size: 1rem; width: 100%; padding: .5rem .8rem; min-height: 46px;
  color: var(--ink); background: transparent; border: 1px solid var(--faint); border-radius: 10px;
}
input:hover, textarea:hover, select:hover { border-color: var(--soft); }
input[type=checkbox] { width: 20px; height: 20px; min-height: 0; padding: 0; accent-color: var(--ink); }
textarea { min-height: 96px; resize: vertical; line-height: 1.6; }
select { appearance: none; -webkit-appearance: none; padding-right: 2rem;
  background: linear-gradient(45deg, transparent 50%, var(--soft) 50%) right 1.05rem center / 5px 5px no-repeat,
              linear-gradient(-45deg, transparent 50%, var(--soft) 50%) right .75rem center / 5px 5px no-repeat; }
.field { margin-bottom: 1.1rem; }
.field .hint { font-size: .8125rem; color: var(--soft); margin-top: .3rem; }
.err { color: var(--danger); font-size: .875rem; margin-top: .3rem; }
.err:empty { display: none; }
.check { display: flex; gap: .6rem; align-items: center; color: var(--ink); font-size: .9375rem; margin: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; align-items: end; }

/* ---- guest: language switch ---- */
.lang { display: flex; gap: .25rem; align-items: center; }
.lang button { border: 0; min-height: 40px; padding: .25rem .4rem; font-size: .8125rem; letter-spacing: .08em; color: var(--soft); }
.lang button:hover { background: none; color: var(--ink); }
.lang button.on { color: var(--ink); text-decoration: underline; text-underline-offset: .3em; }

/* ---- guest: profile list ---- */
.types { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--faint); }
.types li { border-bottom: 1px solid var(--faint); }
.types a { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 0; text-decoration: none; }
.types a:hover h2 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .2em; }
.types h2 { margin: 0; font-size: 1.25rem; }
.types .arrow { color: var(--soft); }

/* ---- guest: date + time picker ---- */
.month-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .75rem; }
.month-head h2 { margin: 0; font-size: 1.25rem; }
.month-head button { width: 44px; padding: 0; font-size: 1.1rem; border-color: var(--faint); }
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: .15rem; text-align: center; margin-bottom: 1.5rem; }
.cal .dow { font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase; color: var(--soft); padding: .35rem 0; }
.cal button { border: 0; padding: 0; min-height: 44px; width: 44px; margin: 0 auto; border-radius: 999px; font-size: .9375rem; font-variant-numeric: tabular-nums; }
.cal button:disabled { opacity: .3; }
.cal button.has { font-weight: 500; position: relative; }
.cal button.has::after { content: ""; position: absolute; left: 50%; bottom: 7px; width: 4px; height: 4px; margin-left: -2px; border-radius: 99px; background: var(--ink); }
.cal button.sel { background: var(--ink); color: var(--paper); }
.cal button.sel::after { background: var(--paper); }
.cal .today { text-decoration: underline; text-underline-offset: .3em; }
.picked-day { margin: 0 0 .75rem; font-size: 1.125rem; }
.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: .5rem; }
.slots button { font-variant-numeric: tabular-nums; }
.slots button.sel { background: var(--ink); color: var(--paper); }
.tzline { margin-top: 2rem; }
.tzline select { font-size: .875rem; min-height: 42px; }
.loading { color: var(--soft); }
.when { font-family: var(--head); font-size: 1.25rem; margin: 0; }
.when-time { color: var(--soft); margin: 0 0 1.5rem; }
.done .lines { text-align: left; border-top: 1px solid var(--faint); border-bottom: 1px solid var(--faint); padding: 1.5rem 0; margin: 2rem 0 1.5rem; }
.done .lines p:last-child { margin-bottom: 0; }
.notice { border-left: 1px solid var(--ink); padding-left: 1rem; margin: 1.5rem 0; }

/* ---- admin ---- */
.tabs { display: flex; gap: 1.25rem; overflow-x: auto; border-bottom: 1px solid var(--faint); margin: 1rem 0 1.5rem; }
.tabs button { border: 0; border-radius: 0; padding: .5rem 0; min-height: 44px; white-space: nowrap; color: var(--soft); border-bottom: 1px solid transparent; margin-bottom: -1px; }
.tabs button:hover { background: none; color: var(--ink); }
.tabs button.on { color: var(--ink); border-bottom-color: var(--ink); }
.subtabs { display: flex; gap: .5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.subtabs button { min-height: 38px; padding: .25rem .9rem; font-size: .8125rem; border-color: var(--faint); }
.subtabs button.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.day-label { font-size: .6875rem; text-transform: uppercase; letter-spacing: .24em; color: var(--soft); margin: 2rem 0 .25rem; }
.bk { display: block; }
.bk .bar { display: none; }
.bk details summary { cursor: pointer; color: var(--soft); font-size: .8125rem; }
.week-row { display: grid; grid-template-columns: 7rem 1fr; gap: .5rem; align-items: start; padding: .75rem 0; border-bottom: 1px solid var(--faint); }
.week-row:last-child { border-bottom: 0; }
.win { display: flex; gap: .4rem; align-items: center; margin-bottom: .4rem; }
.win input { width: auto; flex: 1; min-width: 0; padding: .4rem .5rem; }
.win button { min-height: 40px; width: 40px; padding: 0; border-color: var(--faint); }
.q { border-top: 1px solid var(--faint); padding: .75rem 0; }
.toast { position: fixed; left: 50%; bottom: 1.25rem; transform: translateX(-50%); background: var(--ink); color: var(--paper); padding: .6rem 1.1rem; border-radius: 999px; font-size: .875rem; z-index: 10; max-width: 90vw; }
.copy { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .8125rem; color: var(--soft); word-break: break-all; }
.card a { overflow-wrap: anywhere; }

@media (max-width: 480px) {
  .week-row { grid-template-columns: 1fr; gap: .25rem; }
  .cal button { width: 40px; min-height: 40px; }
}
@media (min-width: 760px) {
  .hero { padding-top: 16vh; }
}

/* long links (meeting + page URLs) wrap instead of pushing the page wider */
.lines a, .section a, .copy, .card a { overflow-wrap: anywhere; word-break: break-all; }
.spread > button, .spread > .btn { white-space: nowrap; flex-shrink: 0; }