:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --ink: #1f2733;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #0e7490;
  --accent-ink: #ffffff;
  --pop: #0f172a;
  --ring: #dc2626;
  --break: #15803d;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
  --radius: 14px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 17px;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 18px; }

/* header / footer / crumbs */
.site-head { border-bottom: 1px solid var(--line); background: var(--card); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { font-weight: 800; font-size: 19px; color: var(--pop); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.nav a { color: var(--muted); font-size: 15px; margin-left: 18px; }
.crumbs { font-size: 13px; color: var(--muted); margin: 18px 0 4px; }
.crumbs a { color: var(--muted); }
h1 { font-size: 28px; line-height: 1.2; letter-spacing: -.02em; margin: 10px 0 14px; }
.lead { color: var(--muted); margin: 0 0 20px; }
h2 { font-size: 20px; margin: 30px 0 12px; letter-spacing: -.01em; }
.site-foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 22px 0 50px; color: var(--muted); font-size: 14px; background: var(--card); }
.site-foot a { color: var(--muted); }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; }

/* the tool card */
.tool {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 20px 22px;
  margin: 8px 0 18px;
  text-align: center;
}
.display {
  font-family: "SF Mono", ui-monospace, "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  font-weight: 700;
  font-size: clamp(3rem, 15vw, 7rem);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--pop);
  font-variant-numeric: tabular-nums;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  margin: 4px 0 8px;
}
.phase { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.cycle { font-size: 14px; color: var(--muted); margin-top: 4px; }
.tool.is-break .phase { color: var(--break); }
.tool.is-break .display { color: var(--break); }

/* zero / alarm state: flashing display */
.tool.ringing .display { animation: flash .7s steps(1) infinite; color: var(--ring); }
@keyframes flash { 50% { opacity: .15; } }

/* set inputs (H/M/S, work/break/rounds) */
.setrow { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 6px 0 14px; }
.setrow > div { flex: 0 1 120px; text-align: left; }
.setrow label { display: block; font-size: 12px; color: var(--muted); margin: 0 0 4px; font-weight: 600; }
input[type=number] { width: 100%; padding: 10px 12px; font-size: 17px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); text-align: center; }

/* buttons */
.btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 8px 0 6px; }
.btn { font: inherit; font-weight: 700; font-size: 16px; cursor: pointer; background: #fff; color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 11px 20px; min-width: 92px; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.stop { background: var(--ring); color: #fff; border-color: var(--ring); }
.btn.stop:hover { filter: brightness(1.08); }
.alarm { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); margin-top: 10px; }
.alarm input { width: 16px; height: 16px; }

/* stopwatch laps */
.laps { list-style: none; margin: 16px 0 0; padding: 0; text-align: left; max-width: 420px; margin-left: auto; margin-right: auto; }
.laps li { display: flex; justify-content: space-between; padding: 8px 4px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.laps .lapn { color: var(--muted); font-size: 14px; }
.laps .lapsplit { font-weight: 700; }
.laps .laptotal { color: var(--muted); font-size: 14px; }

/* link grids */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; margin-bottom: 10px; }
.grid a { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 11px 13px; color: var(--ink); font-size: 15px; }
.grid a:hover { border-color: var(--accent); text-decoration: none; }
.chip-emoji { margin-right: 6px; }

/* prose + ads */
.prose { margin: 22px 0; }
.prose p { margin: 0 0 14px; }
.ad-slot {
  margin: 22px 0;
  min-height: 90px;
  display: flex; align-items: center; justify-content: center;
  background: repeating-linear-gradient(45deg, #eef2f6, #eef2f6 10px, #f4f7fa 10px, #f4f7fa 20px);
  border: 1px dashed #cbd5e1;
  border-radius: 10px;
  color: #94a3b8; font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
}

@media (max-width: 620px) {
  h1 { font-size: 23px; }
  .tool { padding: 20px 12px 18px; }
  .btn { min-width: 0; flex: 1 1 40%; }
}