:root {
  --bg: #f4f6f9; --card: #ffffff; --text: #1b2430; --muted: #66758a; --line: #dde3ea;
  --brand: #0b5cab; --brand-text: #ffffff; --danger: #b3261e; --ok: #1b7f3b; --chip: #e8eef6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11161c; --card: #1a222b; --text: #e8edf3; --muted: #9aa8b9; --line: #2b3643; --brand: #4d9be6; --brand-text: #08121e; --danger: #ff8a80; --ok: #6fd08c; --chip: #243142; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", "Noto Sans Thai", "Sarabun", sans-serif; }
#app { max-width: 720px; margin: 0 auto; padding-bottom: env(safe-area-inset-bottom); min-height: 100vh; }
.loading { text-align: center; color: var(--muted); padding: 40px 16px; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 8px; padding: calc(8px + env(safe-area-inset-top)) 16px 8px; background: var(--brand); color: var(--brand-text); }
.topbar h1 { flex: 1; margin: 0; font-size: 18px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .iconbtn { background: transparent; border: 0; color: inherit; min-width: 44px; min-height: 44px; font-size: 20px; cursor: pointer; }
.content { padding: 16px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; }
a.card, button.card { display: block; width: 100%; text-align: left; color: inherit; text-decoration: none; font: inherit; cursor: pointer; }
.card.disabled { opacity: .55; cursor: default; }
.card h3 { margin: 0 0 2px; font-size: 16px; }
.card .sub { color: var(--muted); font-size: 14px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.big { font-size: 28px; font-weight: 700; color: var(--brand); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip { background: var(--chip); border-radius: 999px; padding: 2px 10px; font-size: 13px; }
.badge { display: inline-block; background: var(--chip); border-radius: 6px; padding: 1px 8px; font-size: 12px; color: var(--muted); }
.section-title { margin: 20px 0 8px; font-size: 15px; color: var(--muted); font-weight: 600; }

label { display: block; font-weight: 600; margin: 14px 0 4px; font-size: 15px; }
label .req { color: var(--danger); }
input, select, textarea { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--text); font: inherit; }
textarea { min-height: 96px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 18px; border-radius: 10px; border: 1px solid var(--brand); background: var(--brand); color: var(--brand-text); font: inherit; font-weight: 600; cursor: pointer; }
a.btn { text-decoration: none; }
.btn.secondary { background: transparent; color: var(--brand); }
.btn.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .6; cursor: default; }
.actions { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }

.searchbar { display: flex; gap: 8px; margin-bottom: 12px; }
.searchbar .btn { white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 32px 0; }
.err { color: var(--danger); margin: 12px 0 0; min-height: 1em; }
.login { max-width: 420px; margin: 0 auto; padding: 48px 20px; }
.login h1 { font-size: 22px; text-align: center; margin: 0 0 4px; }
.login p.sub { text-align: center; color: var(--muted); margin: 0 0 24px; }
.version { text-align: center; color: var(--muted); font-size: 12px; margin-top: 24px; }
.hist { border-left: 3px solid var(--line); padding: 2px 0 2px 12px; margin: 0 0 14px 4px; }
.hist .when { color: var(--muted); font-size: 13px; }
.hist ul { margin: 4px 0 0; padding-left: 18px; font-size: 14px; }

.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(20px); background: #1b2430; color: #fff; padding: 10px 18px; border-radius: 10px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; max-width: 90vw; z-index: 20; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.bad { background: var(--danger); color: #fff; }
[hidden]{display:none!important}