:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #14141f;
  --bg-tertiary: #1e1e2e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --accent: #00d4ff;
  --accent-secondary: #00ff88;
  --accent-rest: #00ff88;
  --accent-long: #ffa600;
  --danger: #ff4466;
  --focus-ring: #00d4ff;
  --focus-glow: rgba(0, 212, 255, 0.4);
  --radius-md: 12px;
  --radius-lg: 18px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 600px;
  height: 600px;
  overflow: hidden;
  background: #000;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

#app { width: 100%; height: 100%; position: relative; }

.screen {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0; left: 0;
  display: flex;
  flex-direction: column;
  padding: 24px;
}

.screen.hidden { display: none; }

.focusable {
  transition: all 0.15s ease;
  border: 2px solid transparent;
  cursor: pointer;
  outline: none;
}

.focusable:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 20px var(--focus-glow);
}

.hidden { display: none !important; }

/* ============= HOME ============= */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  height: 44px;
}

.phase-badge {
  background: var(--bg-tertiary);
  color: var(--accent);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  border: 2px solid var(--accent);
}

.phase-badge.rest {
  color: var(--accent-rest);
  border-color: var(--accent-rest);
}

.phase-badge.long-rest {
  color: var(--accent-long);
  border-color: var(--accent-long);
}

.cycle-counter {
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 500;
}

.timer-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring-container {
  position: relative;
  width: 340px;
  height: 340px;
}

.ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-track {
  fill: none;
  stroke: var(--bg-tertiary);
  stroke-width: 8;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 578;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.95s linear, stroke 0.3s ease;
}

.ring-progress.rest { stroke: var(--accent-rest); }
.ring-progress.long-rest { stroke: var(--accent-long); }

.timer-display {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.time {
  font-size: 72px;
  font-weight: 200;
  font-variant-numeric: tabular-nums;
  letter-spacing: -2px;
  color: var(--text-primary);
}

.time-label {
  font-size: 18px;
  color: var(--text-secondary);
  margin-top: 4px;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.controls {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.ctrl-btn {
  flex: 1;
  height: 64px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-size: 20px;
  font-weight: 600;
  font-family: inherit;
}

.ctrl-btn.primary {
  background: var(--accent);
  color: #000;
}

.ctrl-btn.primary.running {
  background: var(--bg-tertiary);
  color: var(--accent);
  border-color: var(--accent);
}

.footer-nav {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.foot-btn {
  flex: 1;
  height: 50px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-size: 17px;
  font-weight: 500;
  font-family: inherit;
}

.back-btn {
  width: 100%;
  flex: none;
  margin-top: auto;
}

/* ============= SETTINGS ============= */
.screen-header {
  margin-bottom: 18px;
}

.screen-header h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
}

.settings-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  min-height: 56px;
}

.setting-label {
  font-size: 19px;
  color: var(--text-primary);
}

.setting-value {
  font-size: 19px;
  color: var(--accent);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ============= STATS ============= */
.stats-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.stat-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 18px;
  border: 2px solid var(--bg-tertiary);
}

.stat-value {
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.stat-label {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-align: center;
}

.stats-actions {
  display: flex;
  gap: 12px;
}

.stats-actions .foot-btn {
  flex: 1;
  margin-top: 0;
}

/* ============= COMPLETE OVERLAY ============= */
#complete {
  background: rgba(10, 10, 15, 0.95);
  justify-content: center;
  align-items: center;
}

.complete-content {
  text-align: center;
  width: 100%;
}

.complete-icon {
  font-size: 96px;
  color: var(--accent-secondary);
  margin-bottom: 18px;
  line-height: 1;
}

.complete-icon.rest { color: var(--accent); }

.complete-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 10px;
}

.complete-subtitle {
  font-size: 22px;
  color: var(--text-secondary);
  margin-bottom: 34px;
}

.complete-actions {
  display: flex;
  gap: 12px;
  padding: 0 24px;
}

/* ============= PULSE ============= */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.time.paused {
  animation: pulse 1.5s ease-in-out infinite;
}