:root {
  --bg: #f4f7fb; --card: #fff; --ink: #14202e; --mute: #5b6b7d; --line: #dde5ee;
  --pri: #1f6feb; --pri-ink: #fff; --ok: #1a7f37; --warn: #b35900; --bad: #c62828;
  --r: 14px; --nav: 76px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--ink);
  font: 19px/1.55 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif;
  padding-bottom: calc(var(--nav) + env(safe-area-inset-bottom));
}
.top { display: flex; align-items: baseline; gap: 10px; padding: 12px 16px calc(8px) ; padding-top: calc(12px + env(safe-area-inset-top));
  background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 500; }
.brand { font-size: 22px; }
.tag { color: var(--mute); font-size: 14px; }
@media (max-width: 420px) { .tag { display: none; } }
main { padding: 12px 16px 24px; max-width: 720px; margin: 0 auto; }

.tabs { position: fixed; left: 0; right: 0; bottom: 0; height: calc(var(--nav) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom); display: flex; background: var(--card); border-top: 1px solid var(--line); z-index: 600; }
.tabs button { flex: 1; border: 0; background: none; font: inherit; color: var(--mute); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2px; cursor: pointer; }
.tabs button span { font-size: 28px; line-height: 1; }
.tabs button i { font-style: normal; font-size: 15px; }
.tabs button.on { color: var(--pri); font-weight: 600; }

.map { height: 46vh; min-height: 260px; border-radius: var(--r); border: 1px solid var(--line); z-index: 1; }
.map.small { height: 220px; min-height: 0; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--card); }
.seg button { border: 0; background: none; padding: 8px 18px; font: inherit; font-size: 17px; cursor: pointer; }
.seg button.on { background: var(--pri); color: var(--pri-ink); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 12px; margin: 10px 0; }
.job { display: flex; gap: 12px; cursor: pointer; align-items: center; }
.job img { width: 76px; height: 76px; object-fit: cover; border-radius: 10px; background: var(--line); flex: none; }
.job .k { font-weight: 600; }
.job .m { color: var(--mute); font-size: 16px; }
.pill { display: inline-block; font-size: 15px; padding: 2px 8px; border-radius: 999px; background: #e8f0fe; color: var(--pri); }
.pill.taken { background: #fff4e5; color: var(--warn); }
.pill.done { background: #fff4e5; color: var(--warn); }
.pill.confirmed { background: #e6f4ea; color: var(--ok); }
.pill.cancelled { background: #eee; color: var(--mute); }

h2 { font-size: 18px; margin: 16px 0 8px; }
label { display: block; font-weight: 600; margin: 14px 0 6px; }
.hint { color: var(--mute); font-size: 16px; margin: 4px 0; white-space: pre-line; }
input[type=text], textarea, select { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; background: var(--card); color: var(--ink); }
textarea { min-height: 72px; resize: vertical; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 8px 12px; font: inherit; font-size: 14px; cursor: pointer; }
.chips button.on { border-color: var(--pri); background: #e8f0fe; color: var(--pri); font-weight: 600; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 12px; padding: 12px 16px;
  font: inherit; font-weight: 600; background: var(--pri); color: var(--pri-ink); cursor: pointer; text-decoration: none; }
.btn.block { width: 100%; }
.btn.ghost { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.btn.bad { background: var(--card); color: var(--bad); border: 1px solid #f3c7c7; }
.btn:disabled { opacity: .5; cursor: default; }
.preview { width: 100%; max-height: 260px; object-fit: cover; border-radius: var(--r); margin-top: 8px; }
.notice { background: #fff8e1; border: 1px solid #f5d98b; border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 12px 0; }
.free { background: #e6f4ea; border: 1px solid #b7dfc2; border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 12px 0; }

.sheet-back { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 900; }
.sheet { position: fixed; left: 0; right: 0; bottom: 0; max-height: 88vh; overflow: auto; background: var(--card); z-index: 901;
  border-radius: 18px 18px 0 0; padding: 16px 16px calc(20px + env(safe-area-inset-bottom)); max-width: 720px; margin: 0 auto; }
.sheet .close { float: right; border: 0; background: none; font-size: 24px; cursor: pointer; line-height: 1; }
.photos { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.photos.one { grid-template-columns: 1fr; }
.photos.one img { aspect-ratio: 4 / 3; }
.photos figure { margin: 0; }
.photos img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 10px; background: var(--line); }
.photos figcaption { font-size: 15px; color: var(--mute); }
.chat { border: 1px solid var(--line); border-radius: 12px; padding: 8px; max-height: 240px; overflow: auto; background: var(--bg); }
.msg { margin: 4px 0; max-width: 80%; padding: 6px 10px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); word-wrap: break-word; }
.msg.me { margin-left: auto; background: #e8f0fe; border-color: #c8dafc; }
.msg small { display: block; color: var(--mute); font-size: 13px; }
.stars button { border: 0; background: none; font-size: 28px; cursor: pointer; padding: 0 2px; filter: grayscale(1); opacity: .5; }
.stars button.on { filter: none; opacity: 1; }
.toast { font-size: 17px !important; position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(var(--nav) + 16px + env(safe-area-inset-bottom));
  background: #14202e; color: #fff; padding: 10px 16px; border-radius: 12px; z-index: 1000; max-width: 90vw; font-size: 14px; }
.badge { font-size: 40px; }
.actions { display: grid; gap: 8px; margin-top: 12px; }

/* ---- bản người già (14/11): 3 bước, ô to, ít chữ ---- */
h2.step { font-size: 22px; margin: 22px 0 10px; }
h2.step:first-child { margin-top: 6px; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tiles button { border: 2px solid var(--line); background: var(--card); border-radius: 16px; padding: 12px 4px; font: inherit; font-size: 17px;
  font-weight: 600; color: var(--ink); cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; min-height: 96px; justify-content: center; }
.tiles button span { font-size: 36px; line-height: 1.1; }
.tiles button.on { border-color: var(--pri); background: #e8f0fe; color: var(--pri); box-shadow: 0 0 0 2px var(--pri) inset; }
.safety { color: var(--warn); font-size: 16px; margin: 10px 0 0; }
.btn.big { font-size: 21px; padding: 18px 16px; border-radius: 16px; min-height: 64px; }
#go { margin-top: 22px; }
.more { margin-top: 14px; }
.more summary { cursor: pointer; color: var(--mute); font-size: 17px; padding: 6px 0; }
.more textarea { margin-top: 8px; }
.kpin { background: #fff; border: 2px solid var(--warn); border-radius: 50%; font-size: 22px; line-height: 36px; text-align: center; box-shadow: 0 2px 6px rgba(0,0,0,.25); }
.motto { text-align: center; color: var(--mute); margin-top: 28px; font-size: 16px; }