.interval-app,
.interval-overlay,
.interval-help,
.interval-reset-dialog {
  --int-bg: var(--card);
  --int-surface: var(--surface);
  --int-fg: var(--fg);
  --int-muted: var(--muted);
  --int-border: var(--border);
  --int-accent: var(--accent);
  --int-accent-alt: #d97706;
  --int-work: #2563eb;
  --int-rest: #0f9d58;
  --int-warmup: #9333ea;
  --int-cooldown: #0891b2;
  --int-danger: #d93025;
  --int-shadow: var(--shadow);
}

.interval-app[data-theme="dark"],
.interval-overlay[data-theme="dark"],
.interval-help[data-theme="dark"],
.interval-reset-dialog[data-theme="dark"] {
  --int-bg: rgba(11, 31, 51, 0.72);
  --int-surface: rgba(11, 31, 51, 0.92);
  --int-fg: #e6edf3;
  --int-muted: #94a3c1;
  --int-border: #1e2d45;
  --int-accent: #5ea0ff;
  --int-accent-alt: #fbbf24;
  --int-work: #6ea8ff;
  --int-rest: #34d399;
  --int-warmup: #c084fc;
  --int-cooldown: #67e8f9;
  --int-danger: #ff8a80;
  --int-shadow: 0 14px 36px rgba(4, 10, 25, 0.55);
}

.interval-app[data-theme="light"],
.interval-overlay[data-theme="light"],
.interval-help[data-theme="light"],
.interval-reset-dialog[data-theme="light"] {
  --int-bg: #ffffff;
  --int-surface: #f6f8fa;
  --int-fg: #111827;
  --int-muted: #64748b;
  --int-border: #d0d7de;
  --int-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
}

.interval-app {
  display: grid;
  gap: 16px;
}

.interval-shell {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.interval-panel {
  background: var(--int-bg);
  border: 1px solid var(--int-border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--int-shadow);
}

.interval-phase-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  color: var(--int-fg);
}

.interval-phase-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--int-accent);
}

.interval-dial {
  position: relative;
  width: min(320px, 80vw);
  margin: 14px auto 10px;
  aspect-ratio: 1 / 1;
}

.interval-dial svg {
  width: 100%;
  height: 100%;
  display: block;
  color: var(--int-fg);
}

.interval-dial #intervalTicks line {
  stroke: var(--int-border);
  stroke-linecap: round;
}

.interval-ring-track {
  fill: none;
  stroke: var(--int-border);
  stroke-width: 12;
}

.interval-ring {
  fill: none;
  stroke: var(--int-accent);
  stroke-width: 12;
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 120px 120px;
}

.interval-hand {
  stroke: var(--int-accent-alt);
  stroke-width: 3.6;
  stroke-linecap: round;
}

.interval-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 4px;
}

.interval-center-label {
  font-size: 12px;
  color: var(--int-muted);
}

.interval-center-time {
  font-size: clamp(32px, 6vw, 44px);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.interval-center-eta {
  font-size: 12px;
  color: var(--int-muted);
}

.interval-meta {
  display: grid;
  gap: 8px;
  color: var(--int-muted);
  font-size: 13px;
}

.interval-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.interval-meta-val {
  color: var(--int-fg);
  font-variant-numeric: tabular-nums;
}

.interval-time-big {
  font-size: clamp(40px, 6vw, 56px);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.5px;
}

.interval-time-small {
  color: var(--int-muted);
  font-size: 14px;
}

.interval-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.interval-total-bar {
  height: 14px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--int-border), transparent 40%);
  overflow: hidden;
}

.interval-total-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--int-accent), var(--int-accent-alt));
  transition: width 150ms ease;
}

.interval-controls {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.interval-controls .button.primary {
  font-weight: 700;
}

.interval-controls .button.danger {
  background: color-mix(in srgb, var(--int-danger), transparent 85%);
  border-color: color-mix(in srgb, var(--int-danger), transparent 50%);
  color: var(--int-fg);
}

.interval-controls .button {
  min-height: 44px;
}

.interval-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.interval-share {
  display: grid;
  gap: 8px;
}

.interval-share .small {
  color: var(--int-muted);
}

.interval-settings details {
  border: 1px solid var(--int-border);
  border-radius: 12px;
  background: var(--int-bg);
}

.interval-advanced {
  grid-column: 1 / -1;
  border: 1px solid var(--int-border);
  border-radius: 12px;
  background: var(--int-surface);
}

.interval-advanced summary {
  list-style: none;
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 600;
  color: var(--int-fg);
}

.interval-advanced summary::-webkit-details-marker {
  display: none;
}

.interval-advanced-body {
  border-top: 1px solid var(--int-border);
  padding: 12px;
}

.interval-settings summary {
  list-style: none;
  padding: 12px 14px;
  cursor: pointer;
  font-weight: 600;
}

.interval-settings details.always-open > summary {
  cursor: default;
  pointer-events: none;
}

.interval-settings summary::-webkit-details-marker {
  display: none;
}

.interval-settings-body {
  border-top: 1px solid var(--int-border);
  padding: 14px;
  display: grid;
  gap: 16px;
}

.interval-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.interval-chip {
  border-radius: 999px;
  padding: 6px 10px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  font-size: 12px;
}

.interval-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.interval-field {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--int-muted);
}

.interval-field input[type="number"],
.interval-field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  color: var(--int-fg);
  font-variant-numeric: tabular-nums;
}

.interval-field.inline {
  grid-template-columns: 18px 1fr;
  align-items: center;
  color: var(--int-fg);
}

.interval-field.inline input {
  width: 18px;
  height: 18px;
}

.interval-panel-actions {
  display: flex;
  justify-content: flex-end;
}

.interval-timeline {
  display: grid;
  gap: 8px;
}

.interval-timeline-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  font-size: 13px;
}

.interval-timeline-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.interval-badge-mini {
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--int-border);
  font-size: 12px;
  color: var(--int-muted);
  font-variant-numeric: tabular-nums;
}

.interval-note {
  margin: 0;
  font-size: 12px;
  color: var(--int-muted);
  line-height: 1.4;
}

.interval-toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  min-width: 220px;
  max-width: 92vw;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--int-border);
  background: var(--int-surface);
  color: var(--int-fg);
  box-shadow: var(--int-shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease;
  z-index: 20;
}

.interval-toast.show {
  opacity: 1;
}

.interval-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9, 18, 35, 0.6);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 30;
}

.interval-overlay[hidden] {
  display: none;
}

.interval-overlay-card {
  width: min(520px, 92vw);
  background: var(--int-surface);
  border: 1px solid var(--int-border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--int-shadow);
}

.interval-overlay-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.interval-overlay-actions {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.interval-help {
  border: 1px solid var(--int-border);
  border-radius: 12px;
  padding: 0;
  width: min(520px, 92vw);
}

dialog.interval-help,
dialog.interval-reset-dialog {
  display: none;
}

.interval-help[open],
.interval-reset-dialog[open] {
  display: block;
}

.interval-stats {
  border: 1px solid var(--int-border);
  border-radius: 12px;
  padding: 0;
  width: min(520px, 92vw);
}

.interval-stats[open] {
  display: block;
}

dialog.interval-stats {
  display: none;
}

.interval-stats-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

@media (min-width: 520px) {
  .interval-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.interval-stat {
  border: 1px solid var(--int-border);
  border-radius: 10px;
  background: var(--int-bg);
  padding: 10px 12px;
}

.interval-stat-key {
  font-size: 12px;
  color: var(--int-muted);
}

.interval-stat-val {
  margin-top: 4px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.interval-confetti {
  width: 100%;
  height: auto;
  display: block;
  margin: 10px 0 2px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--int-border), transparent 65%);
}

.interval-app :where(button, input, select, summary):focus-visible,
.interval-help :where(button, input, select):focus-visible,
.interval-reset-dialog :where(button, input, select):focus-visible,
.interval-stats :where(button, input, select):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--int-accent), transparent 35%);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--int-accent), transparent 80%);
}

.interval-help .interval-help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--int-border);
  background: var(--int-bg);
}

.interval-help .interval-help-body {
  padding: 14px 16px;
  color: var(--int-muted);
}

.interval-help .interval-help-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--int-muted);
}

.interval-reset-dialog {
  border: 1px solid var(--int-border);
  border-radius: 12px;
  width: min(420px, 92vw);
}

.interval-reset-dialog .interval-reset-body {
  padding: 16px;
}

.interval-reset-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 0 16px 16px;
}

.interval-announcer {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .interval-total-bar-fill {
    transition: none;
  }
}