.page {
  flex: 1;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.version-switch {
  display: flex; gap: 6px; align-items: center;
}
.version-current {
  font-size: 12px; font-weight: 700;
  padding: 5px 14px; border-radius: 999px;
  background: var(--accent); color: white; border: 1px solid var(--accent);
}
.version-link {
  font-size: 12px; font-weight: 500;
  padding: 5px 14px; border-radius: 999px;
  background: var(--surface); color: var(--sub);
  border: 1px solid var(--border); text-decoration: none;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.version-link:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-deep); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.display {
  background: var(--hover); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 16px 24px; margin-bottom: 18px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.display-status {
  font-family: "JetBrains Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.22em; color: var(--muted); text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
}
.display-status .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--muted);
  transition: background 200ms, box-shadow 200ms;
}
.display.running .dot {
  background: var(--ok); box-shadow: 0 0 0 0 rgba(22,163,74,0.5);
  animation: pulse 1.4s ease-in-out infinite;
}
.display.done .dot { background: var(--danger); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(22,163,74,0.45); }
  70%  { box-shadow: 0 0 0 8px rgba(22,163,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
}
.display-value {
  font-family: "JetBrains Mono", monospace; font-weight: 600; font-size: 60px;
  color: var(--ink); letter-spacing: 0.04em; line-height: 1.05; font-variant-numeric: tabular-nums;
}
.display.done .display-value { color: var(--danger); }
.progress {
  width: 100%; max-width: 320px; height: 4px;
  background: var(--border); border-radius: 999px; overflow: hidden;
}
.progress-bar { height: 100%; width: 100%; background: var(--accent); border-radius: 999px; transition: width 250ms linear; }

.controls { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 10px; margin-bottom: 22px; }
.ctrl-btn {
  appearance: none; border: 1px solid var(--border); background: var(--surface);
  color: var(--ink); font-family: "Noto Sans JP", sans-serif;
  font-weight: 500; font-size: 14.5px; padding: 13px 0; border-radius: var(--radius);
  cursor: pointer; transition: transform 80ms, background 120ms, border-color 120ms, color 120ms;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.ctrl-btn:hover { background: var(--hover); border-color: #d1d5db; }
.ctrl-btn:active { transform: translateY(1px); }
.ctrl-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.ctrl-btn:disabled:hover { background: var(--surface); border-color: var(--border); }
.ctrl-btn.primary { background: var(--accent); border-color: var(--accent); color: white; font-weight: 700; }
.ctrl-btn.primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.ctrl-btn.primary:disabled { background: var(--hover); border-color: var(--border); color: var(--muted); }
.ctrl-btn.danger { color: var(--danger); }
.ctrl-btn.danger:hover { background: var(--danger-soft); border-color: #fca5a5; color: var(--danger); }

.setter { border-top: 1px solid var(--border); padding-top: 20px; }
.setter-label {
  font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.14em;
  color: var(--muted); text-transform: uppercase; margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.setter-label::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.setter-row {
  display: flex; align-items: center; justify-content: center;
  gap: 20px; flex-wrap: nowrap; overflow-x: auto;
}
.time-stepper { display: inline-flex; align-items: center; gap: 8px; }
.stepper-spin { display: flex; flex-direction: column; align-items: center; gap: 3px; }
.step-btn {
  appearance: none; border: 1px solid var(--border); background: var(--surface);
  color: var(--sub); width: 46px; height: 24px; border-radius: 7px;
  font-family: "JetBrains Mono", monospace; font-size: 13px; cursor: pointer;
  display: grid; place-items: center; flex-shrink: 0; transition: background 120ms, border-color 120ms;
}
.step-btn:hover { background: var(--hover); border-color: #d1d5db; }
.step-btn:active { background: var(--accent-soft); border-color: var(--accent); }
.time-stepper input {
  width: 52px; border: 1px solid var(--border); border-radius: 8px; padding: 7px 4px;
  font-family: "JetBrains Mono", monospace; font-weight: 600; font-size: 18px;
  color: var(--ink); text-align: center; background: var(--hover); outline: none;
  -moz-appearance: textfield; transition: border-color 120ms, box-shadow 120ms;
}
.time-stepper input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: var(--surface); }
.time-stepper input::-webkit-outer-spin-button,
.time-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.step-unit { color: var(--muted); font-size: 13px; }

.setter-actions { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 8px; margin-top: 16px; }
.action-btn {
  appearance: none; background: var(--surface); border: 1px solid var(--border); color: var(--ink);
  font-family: "Noto Sans JP", sans-serif; font-weight: 600; font-size: 13px; padding: 10px 12px;
  border-radius: 999px; cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms, transform 80ms;
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
}
.action-btn:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-deep); }
.action-btn:active { transform: translateY(1px); }
.action-btn.primary-dark { background: var(--accent); border-color: var(--accent); color: #fff; }
.action-btn.primary-dark:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.action-btn .sym { font-family: "JetBrains Mono", monospace; font-size: 14px; font-weight: 600; opacity: 0.7; }

.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.preset {
  appearance: none; background: transparent; border: 1px dashed var(--border);
  color: var(--sub); font-family: "JetBrains Mono", monospace; font-size: 12px;
  padding: 6px 13px; border-radius: 999px; cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.preset:hover { background: var(--accent-soft); border-color: var(--accent); border-style: solid; color: var(--accent-deep); }

.fine { margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--border); }
.fine-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.fine-btn {
  appearance: none; background: transparent; border: 1px dashed var(--border);
  color: var(--sub); font-family: "JetBrains Mono", monospace;
  font-size: 12.5px; font-weight: 500; padding: 9px 0; border-radius: 10px; cursor: pointer;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.fine-btn:hover { background: var(--accent-soft); border-color: var(--accent); border-style: solid; color: var(--accent-deep); }
.fine-btn.minus { color: var(--danger); }
.fine-btn.minus:hover { background: var(--danger-soft); border-color: #fca5a5; border-style: solid; color: var(--danger); }

@media (max-width: 560px) {
  .display-value { font-size: 48px; }
  .controls { grid-template-columns: 1fr 1fr; }
  .controls .ctrl-btn.primary { grid-column: 1 / -1; }
  .setter-actions { grid-template-columns: 1fr; }
  .fine-row { grid-template-columns: repeat(2, 1fr); }
  .time-stepper input { width: 44px; font-size: 16px; }
  .step-btn { width: 30px; }
}