:root {
  --ground: #f4f5f8; --card: #fff; --ink: #1d2233; --muted: #5d6478; --line: #d9dce5;
  --accent: #a3213a; --accent-ink: #fff1f4; --hot: #f6d6dc; --warn: #fdeccc; --danger: #8a1c1c;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; padding-bottom: env(safe-area-inset-bottom); }
.bar { position: sticky; top: 0; z-index: 2; background: var(--card); border-bottom: 1px solid var(--line); padding: 10px 16px; }
.bar h1 { margin: 0; font-size: 18px; }
.status { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding: 10px 16px; }
.tabs button { flex: none; min-height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: 22px; background: var(--card); color: var(--ink); font: inherit; font-size: 15px; }
.tabs button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.tabs b { font-weight: 600; margin-left: 4px; }
main { padding: 0 16px 16px; display: grid; gap: 14px; max-width: 760px; margin: 0 auto; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 8px; min-width: 0; }
.card h2 { margin: 0; font-size: 18px; overflow-wrap: anywhere; }
.muted { color: var(--muted); margin: 0; }
.small { font-size: 14px; overflow-wrap: anywhere; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: 13px; padding: 3px 9px; border-radius: 12px; background: var(--ground); border: 1px solid var(--line); }
.chip.hot { background: var(--hot); border-color: #e8a9b4; }
.chip.warn { background: var(--warn); border-color: #ecc98a; }
.notes { margin: 0; padding-left: 20px; font-size: 14px; }
details summary { cursor: pointer; min-height: 32px; font-size: 14px; color: var(--muted); }
.subject, .body { width: 100%; font: inherit; font-size: 16px; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: #fbfbfd; color: var(--ink); }
.body { resize: vertical; min-height: 220px; }
pre { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.4 system-ui, sans-serif; color: var(--muted); }
pre.sent { color: var(--ink); font-size: 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.btn { min-height: 44px; padding: 0 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); font: inherit; font-size: 15px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--danger); }
.err { color: var(--danger); margin: 0; }
.empty { padding: 24px 0; text-align: center; }
.paused { background: var(--warn); padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.paused p { margin: 0; flex: 1 1 200px; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding: 16px; max-width: 760px; margin: 0 auto; }
.foot label { margin-right: auto; }
.foot input { width: 72px; min-height: 44px; font: inherit; font-size: 16px; padding: 0 8px; border: 1px solid var(--line); border-radius: 8px; }
body.login main { max-width: 420px; padding: 48px 16px; display: grid; gap: 16px; }