/* Pasteport: điểm nhấn duy nhất là "vé gửi đồ" chứa mã đối chiếu. Mọi thứ khác giữ yên lặng. */
:root {
  color-scheme: light;
  --bg: #e9eef2;
  --surface: #ffffff;
  --ink: #17212b;
  --muted: #56636f;
  --line: #cfd8e0;
  --accent: #24527f;
  --accent-ink: #ffffff;
  --ticket: #e9b949;
  --ticket-ink: #2b2006;
  --danger: #a3281f;
  --ok: #2b7a4b;
  --warn-bg: #fbecc6;
  --warn-ink: #4a3500;
  --radius-s: 6px;
  --radius-m: 12px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0f151b;
    --surface: #18212a;
    --ink: #e2e8ee;
    --muted: #94a2af;
    --line: #2b3743;
    --accent: #8db8e2;
    --accent-ink: #0f151b;
    --ticket: #e3b444;
    --ticket-ink: #261b03;
    --danger: #f08a80;
    --ok: #6fcf97;
    --warn-bg: #3a2e10;
    --warn-ink: #f6dc9a;
  }
}

*, *::before, *::after { box-sizing: inherit; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.55 var(--font);
  min-height: 100%;
}
main { max-width: 44rem; margin: 0 auto; padding: 0 1.25rem 3rem; }
.phone main { padding: 0 1rem 2rem; }

.brand {
  display: flex; align-items: center; gap: .5rem;
  max-width: 44rem; margin: 0 auto; padding: 1.25rem 1.25rem 1.5rem;
  font-weight: 650; letter-spacing: -.01em;
}
.phone .brand { padding: 1rem 1rem 1.25rem; }

h1 {
  font-size: clamp(1.45rem, 1.1rem + 1.6vw, 2.1rem);
  line-height: 1.2; letter-spacing: -.02em; font-weight: 700;
  margin: 0 0 .75rem; max-width: 22ch;
}
.lede { color: var(--muted); margin: 0 0 1.25rem; max-width: 60ch; }

button, .button {
  font: inherit; font-weight: 600; cursor: pointer;
  border-radius: var(--radius-s); padding: .6rem 1rem;
  border: 1px solid transparent; text-decoration: none; display: inline-block;
  min-height: 44px;
}
button.primary { background: var(--accent); color: var(--accent-ink); }
button.ghost, a.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
button.danger { background: transparent; color: var(--danger); border-color: currentColor; }
button:hover { filter: brightness(1.06); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.notice {
  margin: 0 0 1.25rem; padding: .75rem 1rem;
  border-radius: var(--radius-s); background: var(--surface); border: 1px solid var(--line);
}
.notice[data-tone="warn"] { background: var(--warn-bg); color: var(--warn-ink); border-color: transparent; }

/* ---------- Màn hình QR ---------- */
.pair { display: grid; grid-template-columns: auto 1fr; gap: 2.5rem; align-items: start; }
.qr-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: 1rem; width: 17rem;
}
.qr { aspect-ratio: 1; display: grid; place-items: center; }
.qr svg { width: 100%; height: auto; display: block; }
.qr-bg { fill: #ffffff; }
.qr-fg { fill: #000000; }
.qr-placeholder { color: var(--muted); }
.qr-timer { margin: .75rem 0 0; font-size: .875rem; color: var(--muted); text-align: center; font-variant-numeric: tabular-nums; }
.steps { margin: 0 0 1.25rem; padding-left: 1.25rem; }
.steps li { margin: .25rem 0; }
.domain { font-size: .9375rem; color: var(--muted); margin: 0; }
.domain strong { color: var(--ink); overflow-wrap: anywhere; }

@media (max-width: 40rem) {
  .pair { grid-template-columns: 1fr; gap: 1.5rem; }
  .qr-card { width: min(17rem, 100%); }
}

/* ---------- Vé gửi đồ: mã đối chiếu ---------- */
.tickets { display: grid; grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr)); gap: 1.25rem; margin: 0 0 1.5rem; max-width: 38rem; }
h1:focus { outline: none; }
.ticket {
  position: relative;
  background: var(--ticket); color: var(--ticket-ink);
  border: 0; border-radius: var(--radius-s);
  padding: 1.1rem 1.4rem;
  display: inline-flex; justify-content: center;
}
.ticket::before, .ticket::after {
  content: ""; position: absolute; top: 50%;
  width: 1.1rem; height: 1.1rem; margin-top: -.55rem;
  border-radius: 50%; background: var(--bg);
}
.ticket::before { left: -.55rem; }
.ticket::after { right: -.55rem; }
.ticket-code {
  font-size: 1.75rem; font-weight: 750; letter-spacing: .06em;
  font-variant-numeric: tabular-nums; line-height: 1.1;
  padding-left: .9rem; border-left: 2px dashed color-mix(in srgb, var(--ticket-ink) 35%, transparent);
}
button.ticket:hover { filter: brightness(1.05); transform: translateY(-1px); }
button.ticket:active { transform: translateY(1px); }
.ticket-solo { display: flex; width: fit-content; margin: .5rem 0 1.5rem; padding: 1.4rem 2.6rem; }
.ticket-solo .ticket-code { font-size: 2.75rem; }

/* ---------- Phiên đang chạy ---------- */
.session-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 0 1rem; margin-bottom: 1rem; border-bottom: 1px solid var(--line);
}
.session-bar p { margin: 0; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.session-bar strong { font-variant-numeric: tabular-nums; }
.dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--ok); flex: none; }
[data-state="down"] .dot { background: var(--muted); }

.composer textarea {
  width: 100%; resize: vertical; min-height: 5.5rem;
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-s); padding: .75rem .9rem;
}
.composer-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: .6rem; }
.check { display: inline-flex; align-items: center; gap: .5rem; color: var(--muted); cursor: pointer; }
.check input { width: 1.15rem; height: 1.15rem; accent-color: var(--accent); }
.error { color: var(--danger); margin: .5rem 0 0; min-height: 1.4em; font-size: .9375rem; }

.empty { color: var(--muted); margin: 1.5rem 0; }
.items { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .75rem; }
.item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-m); padding: .85rem 1rem;
}
.item.out { background: transparent; }
.item.broken .body { color: var(--danger); }
.meta { display: flex; gap: .75rem; align-items: baseline; font-size: .8125rem; color: var(--muted); }
.meta .status { margin-left: auto; }
.item.is-delivered .status { color: var(--ok); }
.tag { color: var(--warn-ink); background: var(--warn-bg); padding: 0 .4rem; border-radius: 4px; }
.body {
  margin: .35rem 0 0; white-space: pre-wrap; overflow-wrap: anywhere;
  max-height: 14rem; overflow: auto;
}
.body.masked { letter-spacing: .15em; color: var(--muted); }
.note { font-size: .875rem; color: var(--muted); margin: .5rem 0 0; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .6rem; }
.actions:empty { display: none; }
.fineprint { font-size: .875rem; color: var(--muted); margin-top: 2rem; }

.visually-hidden, .offscreen {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; left: -9999px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  button.ticket:hover, button.ticket:active { transform: none; }
}

.app-footer {
  text-align: center;
  padding: 1.5rem 1rem;
  color: var(--muted);
  font-size: 0.8125rem;
}
.app-footer a {
  color: var(--muted);
  text-decoration: underline;
}
.app-footer a:hover {
  color: var(--fg);
}