:root {
  --tt-text: #333;
  --tt-muted: #828b95;
  --tt-border: #e1e4e8;
  --tt-bg: #fff;
  --tt-green: #9dcf00;
  --tt-green-d: #8ab800;
  --tt-red: #ff5752;
  --tt-red-d: #e64c47;
  --tt-blue: #2fc6f6;
}
* { box-sizing: border-box; }
body { margin: 0; background: #f5f7f8; color: var(--tt-text); font: 14px/1.45 "Helvetica Neue", Arial, sans-serif; }
.tt { padding: 12px; max-width: 900px; }
.tt h2 { margin: 0 0 8px; }
.tt-card { background: var(--tt-bg); border: 1px solid var(--tt-border); border-radius: 8px; padding: 14px 16px; margin-bottom: 12px; }
.tt-card h3 { margin: 0 0 10px; font-size: 15px; font-weight: 600; }
.tt-clock { font: 600 40px/1.1 "SFMono-Regular", Menlo, Consolas, monospace; letter-spacing: 1px; margin: 4px 0 12px; }
.tt-clock--run { color: var(--tt-red-d); }
.tt-clock--idle { color: #c3c9cf; }
.tt-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.tt-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.tt-btn { border: 1px solid #c6cdd3; background: #fff; color: var(--tt-text); border-radius: 4px; padding: 8px 16px; font-size: 13px; font-weight: 600; cursor: pointer; }
.tt-btn:hover { background: #f2f4f5; }
.tt-btn[disabled] { opacity: .5; cursor: default; }
.tt-btn--start { background: var(--tt-green); border-color: var(--tt-green); color: #fff; }
.tt-btn--start:hover { background: var(--tt-green-d); }
.tt-btn--stop { background: var(--tt-red); border-color: var(--tt-red); color: #fff; }
.tt-btn--stop:hover { background: var(--tt-red-d); }
.tt-btn--link { border: 0; background: none; color: var(--tt-muted); font-weight: 400; text-decoration: underline; padding: 8px 4px; }
.tt-btn--link:hover { background: none; color: var(--tt-red-d); }
.tt-input { width: 110px; padding: 7px 8px; border: 1px solid #c6cdd3; border-radius: 4px; font-size: 14px; margin-left: 6px; }
.tt-field { display: block; margin: 10px 0 4px; }
.tt-check { display: flex; gap: 6px; align-items: center; margin: 8px 0; cursor: pointer; }
.tt-muted { color: var(--tt-muted); font-size: 12px; }
.tt-alert { border-radius: 6px; padding: 9px 12px; margin: 0 0 12px; font-size: 13px; }
.tt-alert--ok { background: #f1fbd0; border: 1px solid #d8ef8a; }
.tt-alert--warn { background: #fff8e1; border: 1px solid #ffe08a; }
.tt-alert--error { background: #ffe8e8; border: 1px solid #ffb3b1; }
.tt-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.tt-table th, .tt-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--tt-border); }
.tt-table th { color: var(--tt-muted); font-weight: 400; }
.tt-table tfoot td { font-weight: 600; border-bottom: 0; }
.tt-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tt-long td { background: #fff8e1; }
.tt-table a { color: #2067b0; }
.tt-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.35); display: flex; align-items: flex-start; justify-content: center; padding-top: 40px; z-index: 10; }
.tt-modal { background: #fff; border-radius: 8px; padding: 18px 20px; width: 420px; max-width: calc(100% - 24px); box-shadow: 0 8px 30px rgba(0,0,0,.2); }
.tt-modal h3 { margin: 0 0 8px; }
.tt-loading { color: var(--tt-muted); padding: 20px 0; }