:root {
  --bg: #f6f6f3;
  --surface: #ffffff;
  --sunken: #efefea;
  --border: #e3e3dc;
  --text: #15151a;
  --muted: #5d5d66;
  --faint: #8f8f98;
  --accent: #2f54eb;
  --accent-soft: #e6ebfd;
  --danger: #d33a2c;
  --danger-soft: #fbe7e4;
  --warning: #b7791f;
  --warning-soft: #fbf1df;
  --success: #2f8a4c;
  --success-soft: #e3f3e8;
  --brand: #ffd23f;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d10;
    --surface: #17171c;
    --sunken: #1f1f25;
    --border: #2a2a31;
    --text: #f1f1f4;
    --muted: #a8a8b3;
    --faint: #74747e;
    --accent: #7d98ff;
    --accent-soft: #1d2440;
    --danger: #ff7a6b;
    --danger-soft: #3a1c19;
    --warning: #e7b35a;
    --warning-soft: #33280f;
    --success: #6ccf8b;
    --success-soft: #15301f;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; color: inherit; }
a { color: var(--accent); }

.boot { padding: 48px 16px; text-align: center; color: var(--muted); }

/* Layout */
.top {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; font-size: 18px; text-decoration: none; color: var(--text); }
.logo i { width: 26px; height: 26px; border-radius: 7px; background: #111; display: grid; place-items: center; font-style: normal; color: var(--brand); font-size: 15px; }
.nav { display: flex; gap: 4px; margin-left: 8px; }
.nav a { padding: 6px 12px; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: 14px; }
.nav a.on { background: var(--surface); color: var(--text); box-shadow: var(--shadow); border: 1px solid var(--border); }
.spacer { flex: 1; }
.status { display: flex; align-items: center; gap: 8px; color: var(--faint); font-size: 13px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.dot.off { background: var(--warning); }

main { max-width: 820px; margin: 0 auto; padding: 16px 16px 96px; }
h1 { font-size: 22px; letter-spacing: -0.02em; margin: 8px 0 4px; }
h2 { font-size: 16px; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 16px; }

/* Controls */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); background: var(--surface);
  padding: 8px 14px; border-radius: 10px; cursor: pointer; font-weight: 600; font-size: 14px;
}
.btn:hover { border-color: var(--faint); }
.btn.primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn.danger { color: var(--danger); }
.btn.link { border: none; background: none; color: var(--accent); padding: 8px 6px; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.tabs { display: flex; gap: 6px; margin: 4px 0 14px; }
.tab { border: 1px solid var(--border); background: transparent; padding: 6px 14px; border-radius: 999px; cursor: pointer; font-weight: 600; font-size: 14px; color: var(--muted); }
.tab.on { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
input[type="email"], input[type="password"], input[type="text"], input[type="number"], textarea {
  width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; outline: none;
}
input:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; line-height: 1.55; }
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
.hint { color: var(--faint); font-size: 13px; margin-top: 4px; }

/* Cards and lists */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.row { display: grid; grid-template-columns: 40px 1fr auto; gap: 12px; padding: 14px 16px; border-top: 1px solid var(--border); text-decoration: none; color: inherit; }
.row:first-child { border-top: none; }
.row:hover { background: var(--sunken); }
.ico { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; background: var(--accent-soft); color: var(--accent); }
.ico.hot { background: var(--danger-soft); color: var(--danger); }
.who { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.subj { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sum { color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.when { color: var(--faint); font-size: 13px; white-space: nowrap; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.pill { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; background: var(--sunken); color: var(--muted); }
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: none; }
.pill.dot-on::before { display: inline-block; }
.pill.red { color: var(--danger); background: var(--danger-soft); }
.pill.blue { color: var(--accent); background: var(--accent-soft); }
.pill.amber { color: var(--warning); background: var(--warning-soft); }
.pill.green { color: var(--success); background: var(--success-soft); }

.banner { display: flex; gap: 10px; border-radius: 12px; padding: 12px 14px; margin: 12px 0; border: 1px solid transparent; }
.banner b { display: block; }
.banner.red { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.banner.blue { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.banner.amber { background: var(--warning-soft); border-color: color-mix(in srgb, var(--warning) 30%, transparent); }

.mailbody { white-space: pre-wrap; word-break: break-word; }
.meta { color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 12px; }
.empty { text-align: center; padding: 56px 16px; color: var(--muted); }
.empty b { display: block; color: var(--text); font-size: 17px; margin-bottom: 4px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.switch { display: flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 600; }
.switch input { width: 18px; height: 18px; }
.section { margin-top: 18px; }
.auth { max-width: 380px; margin: 10vh auto 0; }
.err { color: var(--danger); font-size: 14px; margin-top: 8px; min-height: 20px; }

#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 12px;
  opacity: 0; pointer-events: none; transition: 0.2s; max-width: calc(100% - 32px); font-weight: 600; font-size: 14px;
}
#toast.show { opacity: 1; transform: translateX(-50%); }

dialog { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); color: var(--text); padding: 20px; width: min(460px, calc(100% - 32px)); }
dialog::backdrop { background: rgba(0, 0, 0, 0.35); }

@media (max-width: 600px) {
  .status span { display: none; }
  .nav { margin-left: 0; }
  .grid2 { grid-template-columns: 1fr; }
  .row { grid-template-columns: 36px 1fr; }
  .row .when { grid-column: 2; }
}

.grow { min-width: 0; }
.gap-l { margin-left: 8px; }
.gap-t { margin-top: 10px; }
.head { display: flex; align-items: center; gap: 8px; }
.head h2 { margin: 0; flex: 1; }
.actions.flush { margin-top: 0; }
input.num { max-width: 110px; }
.btn { white-space: nowrap; }
@media (max-width: 600px) {
  .top { gap: 6px; padding: 10px 12px; }
  .top .btn.small { padding: 4px 8px; }
  .logo { font-size: 16px; }
}