* {
  box-sizing: border-box;
}

:root {
  --work-color: #ff6b6b;
  --work-color-2: #ff9472;
  --short-color: #4ecdc4;
  --short-color-2: #6bdfd1;
  --long-color: #8b8fff;
  --long-color-2: #a78bfa;
  --bg: #0a0b12;
  --panel: #14161f;
  --panel-2: #1a1d2b;
  --text: #f5f6fa;
  --muted: #8b90ab;
  --accent: var(--work-color);
  --accent-2: var(--work-color-2);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  position: relative;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.28;
  transition: background 0.6s var(--ease);
}

.blob-a {
  top: -160px;
  left: -120px;
  background: var(--accent);
}

.blob-b {
  bottom: -180px;
  right: -140px;
  background: var(--accent-2);
  opacity: 0.18;
}

.app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)) var(--panel);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 28px;
  padding: 28px 28px 30px;
  box-shadow:
    0 30px 80px -20px rgba(0,0,0,0.65),
    0 1px 0 rgba(255,255,255,0.06) inset;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
  animation: rise 0.6s var(--ease);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.app-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  letter-spacing: 0.2px;
}

.brand-mark {
  color: var(--accent);
  transition: color 0.4s var(--ease);
}

.icon-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, background 0.2s, transform 0.15s, border-color 0.2s;
}

.icon-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.14);
}

.icon-btn:active {
  transform: scale(0.92);
}

.mode-switch {
  position: relative;
  display: flex;
  gap: 2px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 4px;
  border-radius: 999px;
  width: 100%;
}

.mode-indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  width: calc(33.333% - 2.66px);
  background: var(--accent);
  border-radius: 999px;
  transition: transform 0.4s var(--ease), background 0.4s var(--ease);
  box-shadow: 0 4px 16px -2px color-mix(in srgb, var(--accent) 70%, transparent);
}

.mode-btn {
  position: relative;
  z-index: 1;
  flex: 1;
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 9px 10px;
  border-radius: 999px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}

.mode-btn.active {
  color: #0a0b12;
}

.ring-wrap {
  position: relative;
  width: 240px;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.16;
  filter: blur(38px);
  transition: background 0.4s var(--ease), opacity 0.4s var(--ease);
}

.ring-wrap.is-running .ring-glow {
  animation: breathe 2.4s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 0.14; transform: scale(1); }
  50% { opacity: 0.28; transform: scale(1.08); }
}

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

.ring-bg {
  fill: none;
  stroke: rgba(255,255,255,0.055);
  stroke-width: 13;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 13;
  stroke-linecap: round;
  stroke-dasharray: 678.6;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.9s var(--ease), stroke 0.4s var(--ease);
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent) 65%, transparent));
}

.ring-center {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.time {
  font-family: 'Outfit', sans-serif;
  font-size: 52px;
  font-weight: 700;
  letter-spacing: 0.5px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.session-label {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  transition: color 0.4s var(--ease), background 0.4s var(--ease), border-color 0.4s var(--ease);
}

.controls {
  display: flex;
  align-items: center;
  gap: 14px;
}

.control-btn {
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  transition: transform 0.15s var(--ease), background 0.2s, box-shadow 0.3s, opacity 0.2s;
}

.control-btn:active {
  transform: scale(0.93);
}

.control-btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #14100f;
  padding: 14px 38px;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px -8px color-mix(in srgb, var(--accent) 65%, transparent);
}

.control-btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 34px -8px color-mix(in srgb, var(--accent) 75%, transparent);
}

.control-btn.secondary {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn.secondary:hover {
  background: rgba(255,255,255,0.09);
}

.streak-panel {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-around;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.streak-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.streak-div {
  width: 1px;
  height: 30px;
  background: rgba(255,255,255,0.07);
}

.streak-value {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  transition: color 0.4s var(--ease);
}

.streak-value.pop {
  animation: pop 0.4s var(--ease);
}

@keyframes pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.35); }
  100% { transform: scale(1); }
}

.streak-label {
  color: var(--muted);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* Settings drawer */

.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: rgba(5,6,10,0.72);
  display: flex;
  justify-content: flex-end;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}

.settings-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.settings-panel {
  width: 320px;
  max-width: 88vw;
  height: 100%;
  background: var(--panel-2);
  border-left: 1px solid rgba(255,255,255,0.08);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
  box-shadow: -20px 0 60px rgba(0,0,0,0.4);
}

.settings-overlay.open .settings-panel {
  transform: translateX(0);
}

.settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 16px;
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.settings-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.durations {
  display: flex;
  gap: 10px;
}

.durations label {
  flex: 1;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.durations input {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--text);
  padding: 9px 8px;
  font-size: 14px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: textfield;
  -moz-appearance: textfield;
}

.durations input::-webkit-outer-spin-button,
.durations input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.durations input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.toggles {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toggle-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  padding: 11px 14px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.toggle-btn svg {
  flex-shrink: 0;
}

.toggle-btn.active {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

@media (max-width: 480px) {
  .app {
    padding: 24px 18px 26px;
  }
  .ring-wrap {
    width: 210px;
    height: 210px;
  }
}