:root {
  --color-paper: #f4f1e8;
  --color-paper-deep: #ece7d9;
  --color-ink: #1c1b18;
  --color-ink-soft: #6b665b;
  --color-line: #d9d3c3;
  --color-accent: #d8442a;
  --color-accent-deep: #b0331d;
  --color-mark: #e0a92e;
  --font-display: Inter, Noto Sans TC, sans-serif;
  --font-body: Inter, Noto Sans TC, sans-serif;
  --font-mono: Inter, Noto Sans TC, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

.tool-intro {
  margin-bottom: 40px;
  line-height: 1.7;
  color: #6b665b;
}
.tool-intro strong {
  color: #1c1b18;
}

.pm-modes {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.pm-mode {
  padding: 8px 24px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  background: #ece7d9;
  color: #6b665b;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  cursor: pointer;
  transition: border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), background 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.pm-mode:hover {
  border-color: #6b665b;
  color: #1c1b18;
}
.pm-mode.is-active {
  border-color: #d8442a;
  background: #d8442a;
  color: #f4f1e8;
}

.pm-clock {
  position: relative;
  width: 280px;
  max-width: 80vw;
  aspect-ratio: 1;
  margin: 0 auto 40px;
  display: grid;
  place-items: center;
}

.pm-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.pm-ring-track {
  fill: none;
  stroke: #d9d3c3;
  stroke-width: 8;
}

.pm-ring-fill {
  fill: none;
  stroke: #d8442a;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.25s linear, stroke 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.pm-clock[data-mode=short] .pm-ring-fill,
.pm-clock[data-mode=long] .pm-ring-fill {
  stroke: #e0a92e;
}

.pm-clock-center {
  position: relative;
  z-index: 1;
  text-align: center;
}

.pm-time {
  display: block;
  font-size: clamp(3rem, 14vw, 4.5rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: #1c1b18;
  line-height: 1;
}

.pm-phase {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #6b665b;
}

.pm-clock.is-running .pm-time {
  animation: pm-pulse 2s cubic-bezier(0.22, 0.61, 0.36, 1) infinite;
}

@keyframes pm-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}
.pm-clock.is-done .pm-clock-center {
  animation: pm-flash 0.45s cubic-bezier(0.22, 0.61, 0.36, 1) 2;
}

@keyframes pm-flash {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pm-clock.is-running .pm-time,
  .pm-clock.is-done .pm-clock-center {
    animation: none;
  }
}
.pm-controls {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
}

.pm-start {
  min-width: 140px;
  justify-content: center;
}

.pm-harvest {
  text-align: center;
  color: #6b665b;
  font-size: 1rem;
}
.pm-harvest strong {
  color: #d8442a;
  font-size: 1.25rem;
}

.pm-settings {
  margin: 0 0 24px;
  border: 1.5px solid #1c1b18;
  border-radius: 2px;
  background: #ece7d9;
  box-shadow: 4px 4px 0 rgba(28, 27, 24, 0.12);
  overflow: hidden;
}

.pm-settings-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 16px 24px;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1c1b18;
  list-style: none;
  user-select: none;
}
.pm-settings-summary::-webkit-details-marker {
  display: none;
}
.pm-settings-summary:hover {
  color: #d8442a;
}
.pm-settings-summary:focus-visible {
  outline: 2px solid #d8442a;
  outline-offset: -4px;
}

.pm-settings-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.pm-settings-label::before {
  content: "";
  width: 10px;
  height: 10px;
  background: #d8442a;
  border-radius: 50%;
}

.pm-settings-toggle {
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid #6b665b;
  border-bottom: 2px solid #6b665b;
  transform: rotate(45deg);
  transition: transform 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.pm-settings[open] .pm-settings-toggle {
  transform: rotate(-135deg);
}

.pm-settings-summary:hover .pm-settings-toggle {
  border-color: #d8442a;
}

.pm-settings-body {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 24px;
  border-top: 1px solid #d9d3c3;
}

.pm-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pm-field label {
  font-size: 1rem;
  color: #6b665b;
}
.pm-field input {
  padding: 8px 16px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  background: #f4f1e8;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #1c1b18;
}
.pm-field input:focus {
  outline: none;
  border-color: #1c1b18;
}

.pm-check {
  grid-column: 1/-1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  color: #1c1b18;
  cursor: pointer;
}
.pm-check input {
  accent-color: #d8442a;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

@media (max-width: 480px) {
  .pm-settings-body {
    grid-template-columns: 1fr;
  }
}