:root {
  --court-deep: #123640; --chalk: #F9F8F4; --panel: #FFFFFF; --ball: #5B9A2C; --ball-light: #A9D66D;
  --closed: #E1E4DC; --ink: #1C2624; --ink-soft: #566058; --rule: #DAD9CE; --danger: #A8402A;
  --pill: #E6F0D8; --pill-ink: #1C2E0D; --warn-bg: #F6E9DF; --warn-ink: #6E3A1F; --btn-ink: #FFFFFF;
  --head-ink: #F2F0E7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --chalk: #12181A; --panel: #1B2426; --ball: #8FC63E; --ball-light: #4C6B2A; --closed: #2A3335;
    --ink: #EDEFEA; --ink-soft: #A9B3AE; --rule: #303B3D; --pill: #26331F; --pill-ink: #DDEBC8;
    --court-deep: #0D1517; --danger: #E08D78; --warn-bg: #3A2B22; --warn-ink: #F0CDB8; --btn-ink: #10190A;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--chalk); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased; font-size: 16px; line-height: 1.45;
}
h1, h2, h3 { font-family: 'Barlow Condensed', 'Arial Narrow', 'Roboto Condensed', -apple-system, sans-serif; letter-spacing: .01em; margin: 0 0 .5rem; line-height: 1.1; }
h1 { font-size: 2rem; } h2 { font-size: 1.4rem; } h3 { font-size: 1.15rem; }
a { color: var(--ball); }
.hidden { display: none !important; }

/* ---------- app frame ---------- */
#app { min-height: 100%; display: flex; flex-direction: column; }
.frame { height: 100dvh; display: flex; flex-direction: column; }
.topbar {
  background: var(--court-deep); color: var(--head-ink);
  padding: calc(.7rem + env(safe-area-inset-top)) 1rem .7rem; display: flex; align-items: center; gap: .75rem;
}
.topbar .brand { font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif; font-weight: 700; font-size: 1.5rem; flex: 1; letter-spacing: .01em; }
.topbar .who { font-size: .85rem; opacity: .9; border: 0; background: none; text-decoration: underline; text-underline-offset: 3px; }
.topbar button { background: transparent; border: 1px solid rgba(255,255,255,.35); color: var(--head-ink); border-radius: 8px; padding: .3rem .65rem; font-size: .85rem; cursor: pointer; }
.content { flex: 1; min-height: 0; overflow: auto; -webkit-overflow-scrolling: touch; }
.content.flush { display: flex; flex-direction: column; overflow: hidden; }
.pad { max-width: 760px; margin: 0 auto; padding: 1.1rem 1rem 2rem; }
.tabbar {
  display: flex; border-top: 1px solid var(--rule); background: var(--panel);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar button {
  flex: 1; background: none; border: 0; padding: .7rem .5rem .6rem; font-size: .85rem; font-weight: 600;
  color: var(--ink-soft); cursor: pointer; border-top: 3px solid transparent;
}
.tabbar button[aria-current="page"] { color: var(--ink); border-top-color: var(--ball); }

/* ---------- chart tab ---------- */
.chart-meta { display: flex; justify-content: space-between; gap: .75rem; padding: .45rem 1rem; font-size: .82rem; color: var(--ink-soft); border-bottom: 1px solid var(--rule); background: var(--panel); }
.chart-frame { flex: 1; width: 100%; border: 0; background: var(--chalk); }

/* ---------- auth screens ---------- */
.auth { min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 1.25rem; }
.auth-card { width: 100%; max-width: 400px; }
.auth-logo { width: 64px; height: 64px; border-radius: 16px; margin-bottom: 1rem; display: block; }
.card { background: var(--panel); border: 1px solid var(--rule); border-radius: 14px; padding: 1.1rem; }
.stack > * + * { margin-top: .85rem; }
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .3rem; }
input[type=text], input[type=email], input[type=tel], input[type=number], input[type=date], input[type=time], select, textarea {
  width: 100%; font: inherit; padding: .75rem .8rem; border-radius: 10px; border: 1px solid var(--rule);
  background: var(--chalk); color: var(--ink);
}
input:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid var(--ball); outline-offset: 2px; }
input.code { font-size: 1.6rem; letter-spacing: .5em; text-align: center; font-variant-numeric: tabular-nums; }
.check { font-weight: 400; display: flex; gap: .6rem; align-items: flex-start; font-size: .9rem; }
.check input { margin-top: .2rem; width: 1.1rem; height: 1.1rem; flex: none; }
.btn {
  font: inherit; font-weight: 700; padding: .8rem 1.1rem; border-radius: 10px; border: 0; cursor: pointer;
  background: var(--ball); color: var(--btn-ink); width: 100%;
}
.btn[disabled] { opacity: .55; cursor: default; }
.btn.small { width: auto; padding: .4rem .75rem; font-size: .85rem; border-radius: 8px; }
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--rule); }
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.link-btn { background: none; border: 0; color: var(--ball); font: inherit; cursor: pointer; padding: .2rem 0; text-decoration: underline; }
.muted { color: var(--ink-soft); font-size: .88rem; }
.err { background: var(--warn-bg); color: var(--warn-ink); padding: .65rem .8rem; border-radius: 10px; font-size: .9rem; }
.ok { background: var(--pill); color: var(--pill-ink); padding: .65rem .8rem; border-radius: 10px; font-size: .9rem; }
.empty { text-align: center; color: var(--ink-soft); padding: 2.5rem 1rem; }

/* ---------- people tab ---------- */
.row { display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap; }
.person { padding: .85rem 1rem; }
.person + .person { margin-top: .6rem; }
.person .nm { font-weight: 700; }
.person .ph { color: var(--ink-soft); font-size: .88rem; }
.chips { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .35rem; }
.chip { font-size: .72rem; font-weight: 700; padding: .12rem .5rem; border-radius: 999px; background: var(--closed); color: var(--ink); }
.chip.active { background: var(--pill); color: var(--pill-ink); }
.chip.warn { background: var(--warn-bg); color: var(--warn-ink); }
.actions { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .65rem; }
details.add { margin-bottom: 1rem; padding: 0; }
details.add summary { cursor: pointer; font-weight: 700; padding: .8rem 1rem; list-style: none; }
details.add summary::-webkit-details-marker { display: none; }
details.add[open] summary { border-bottom: 1px solid var(--rule); }
details.add .body { padding: 1rem; }

/* ---------- privacy / terms ---------- */
body.doc { height: auto; }
.doc-main { max-width: 680px; margin: 0 auto; padding: 1.5rem 1.1rem 3rem; }
.doc-main h2 { margin-top: 1.4rem; }

/* ---------- games ---------- */
.head-row { margin-bottom: .8rem; }
.head-row h2 { margin: 0; }
textarea { resize: vertical; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
button.card.game { display: block; width: 100%; text-align: left; font: inherit; color: inherit; cursor: pointer; padding: .85rem 1rem; }
button.card.game + button.card.game { margin-top: .6rem; }
button.card.game.is-full { background: var(--chalk); }
.game .when { font-weight: 700; }
.game .names { margin-top: .3rem; font-size: .92rem; }
.chip.full { background: var(--court-deep); color: var(--head-ink); }
.chip.big { font-size: .9rem; padding: .35rem .8rem; }
.slots { list-style: none; margin: .85rem 0 0; padding: 0; display: grid; gap: .45rem; }
.slot { padding: .6rem .8rem; border-radius: 10px; display: flex; gap: .5rem; align-items: center; }
.slot.filled { background: var(--pill); color: var(--pill-ink); font-weight: 600; }
.slot.open { border: 1px dashed var(--rule); color: var(--ink-soft); }
.notes { white-space: pre-wrap; }
.warn-note { background: var(--warn-bg); color: var(--warn-ink); padding: .5rem .7rem; border-radius: 10px; font-size: .88rem; margin: .5rem 0 0; }
.invitees { display: grid; gap: .5rem; max-height: 16rem; overflow: auto; padding: .2rem; }
.required-note { background: var(--chalk); border: 1px solid var(--rule); border-radius: 10px; padding: .6rem .7rem; }
[hidden] { display: none !important; }
.waitlist { margin: .3rem 0 0; padding-left: 1.4rem; display: grid; gap: .3rem; }
.waitlist .chip { margin-left: .4rem; }
input[readonly] { opacity: .7; cursor: not-allowed; }
.slot .grow { flex: 1; }
.guest-row { display: flex; gap: .5rem; }
.guest-row input { flex: 1; min-width: 0; }
.btn.back { margin-bottom: .8rem; }