/* Stopwatch — 485Tech */
.sw-container {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}
.sw-display {
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 1.5rem 1rem;
  background: var(--paper-2);
  border: 1px solid var(--ink-8);
  border-radius: var(--r-3);
  color: var(--ink);
  margin-bottom: 1rem;
  user-select: none;
}
.sw-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}
.sw-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 0;
  border-radius: var(--r-2);
  font: inherit;
  font-size: 1rem;
  font-weight: 650;
  cursor: pointer;
  min-width: 100px;
  justify-content: center;
  transition: transform 0.05s, box-shadow 0.15s;
}
.sw-btn:active {
  transform: translateY(1px);
}
.sw-btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(10, 111, 217, 0.25);
}
.sw-btn-secondary {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--ink-8);
}
.sw-btn-ghost {
  background: transparent;
  color: var(--ink-3);
  border: 1px solid var(--ink-8);
}
.sw-btn-icon {
  font-size: 1.1rem;
  line-height: 1;
}
.sw-laps {
  text-align: left;
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid var(--ink-8);
  border-radius: var(--r-2);
  background: var(--paper-2);
}
.sw-lap-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--paper-3, rgba(0,0,0,0.04));
  font-variant-numeric: tabular-nums;
}
.sw-lap-row:last-child {
  border-bottom: 0;
}
.sw-lap-num {
  color: var(--ink-3);
  font-size: 0.85rem;
  min-width: 50px;
}
.sw-lap-delta {
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 650;
  flex: 1;
}
.sw-lap-time {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  color: var(--ink);
}
@media (max-width: 480px) {
  .sw-display {
    font-size: 2.5rem;
    padding: 1.2rem 0.75rem;
  }
  .sw-btn {
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
  }
}