:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --border: #2a3441;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #4493f8;
  --ok: #3fb950;
  --bad: #f0883e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; }
.topbar nav { display: flex; align-items: center; gap: 16px; }
.container { max-width: 860px; margin: 0 auto; padding: 24px 20px; }

.banner {
  padding: 12px 20px; text-align: center; font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.banner a { color: inherit; font-weight: 700; text-decoration: underline; }
.banner-warn { background: #3a2e12; color: #ffd591; }
.banner-expired { background: #4a1414; color: #ffb3b3; }

.hero { text-align: center; padding: 80px 0; }
.hero h1 { font-size: 32px; margin-bottom: 8px; }

.btn {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 10px 18px; border: 0; border-radius: 8px; cursor: pointer;
  font-size: 15px; font-weight: 600;
}
.btn:hover { filter: brightness(1.1); text-decoration: none; }
.btn.small { padding: 6px 12px; font-size: 13px; }
button.link, .link {
  background: none; border: 0; color: var(--accent); cursor: pointer;
  padding: 0; font-size: 13px;
}
.inline { display: inline; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 20px 0; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.card h3 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }
.muted { color: var(--muted); }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.big { font-size: 28px; font-weight: 700; }

.row { display: flex; gap: 10px; align-items: center; }
.row.between { justify-content: space-between; }
.grow { flex: 1; }

input[type=text] {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  padding: 8px 10px; border-radius: 8px; font-family: ui-monospace, monospace;
}

.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.chip { background: var(--panel); border: 1px solid var(--border); padding: 5px 12px; border-radius: 999px; font-size: 13px; }
.chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.item { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px; margin-bottom: 10px; }
.item.unread { border-left: 3px solid var(--accent); }
.item-head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.subj { color: var(--muted); }
.when { margin-left: auto; font-size: 12px; }
.preview { margin: 8px 0; color: #c9d1d9; }
.item-actions { display: flex; gap: 16px; align-items: center; }
.tag { font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 5px; text-transform: uppercase; }
.tag.teams_chat { background: #5b5fc7; color: #fff; }
.tag.mail { background: #0a6b50; color: #fff; }

.kv { width: 100%; border-collapse: collapse; }
.kv td { padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.kv td:first-child { color: var(--muted); width: 130px; }

pre.result, pre.bad-pre {
  background: #0b0f14; border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow: auto; max-height: 480px; font-size: 12px;
  white-space: pre-wrap; word-break: break-word;
}
pre.bad-pre { border-color: var(--bad); color: var(--bad); }
.examples { margin: 8px 0; font-size: 13px; }
code { background: #0b0f14; padding: 1px 5px; border-radius: 4px; font-size: 12px; }