/**
 * focus thing — Stylesheet
 *
 * Design system: Catppuccin Mocha (dark) + Latte (light) themes,
 * 14 accent colors, Instrument Serif + JetBrains Mono typography.
 *
 * Z-index layers:
 *   1    — main content
 *   50   — settings/focus/help toggles
 *   80   — toast, hints, focus hint
 *   99   — drawer backdrop
 *   100  — drawer
 *   150  — flash overlay
 *   200  — noise grain
 */

/* ================================================================
   CATPPUCCIN COLOR SYSTEM
   ================================================================ */

/* --- Mocha (Dark) --- */
[data-theme="mocha"] {
  --base:      #1e1e2e;
  --mantle:    #181825;
  --crust:     #11111b;
  --surface0:  #313244;
  --surface1:  #45475a;
  --surface2:  #585b70;
  --overlay0:  #6c7086;
  --overlay1:  #7f849c;
  --overlay2:  #9399b2;
  --subtext0:  #a6adc8;
  --subtext1:  #bac2de;
  --text:      #cdd6f4;

  --rosewater: #f5e0dc;
  --flamingo:  #f2cdcd;
  --pink:      #f5c2e7;
  --mauve:     #cba6f7;
  --red:       #f38ba8;
  --maroon:    #eba0ac;
  --peach:     #fab387;
  --yellow:    #f9e2af;
  --green:     #a6e3a1;
  --teal:      #94e2d5;
  --sky:       #89dceb;
  --sapphire:  #74c7ec;
  --blue:      #89b4fa;
  --lavender:  #b4befe;
}

/* --- Latte (Light) --- */
[data-theme="latte"] {
  --base:      #eff1f5;
  --mantle:    #e6e9ef;
  --crust:     #dce0e8;
  --surface0:  #ccd0da;
  --surface1:  #bcc0cc;
  --surface2:  #acb0be;
  --overlay0:  #9ca0b0;
  --overlay1:  #8c8fa1;
  --overlay2:  #7c7f93;
  --subtext0:  #6c6f85;
  --subtext1:  #5c5f77;
  --text:      #4c4f69;

  --rosewater: #dc8a78;
  --flamingo:  #dd7878;
  --pink:      #ea76cb;
  --mauve:     #8839ef;
  --red:       #d20f39;
  --maroon:    #e64553;
  --peach:     #fe640b;
  --yellow:    #df8e1d;
  --green:     #40a02b;
  --teal:      #179299;
  --sky:       #04a5e5;
  --sapphire:  #209fb5;
  --blue:      #1e66f5;
  --lavender:  #7287fd;
}

/* --- Accent mapping --- */
[data-accent="rosewater"] { --accent: var(--rosewater); }
[data-accent="flamingo"]  { --accent: var(--flamingo); }
[data-accent="pink"]      { --accent: var(--pink); }
[data-accent="mauve"]     { --accent: var(--mauve); }
[data-accent="red"]       { --accent: var(--red); }
[data-accent="maroon"]    { --accent: var(--maroon); }
[data-accent="peach"]     { --accent: var(--peach); }
[data-accent="yellow"]    { --accent: var(--yellow); }
[data-accent="green"]     { --accent: var(--green); }
[data-accent="teal"]      { --accent: var(--teal); }
[data-accent="sky"]       { --accent: var(--sky); }
[data-accent="sapphire"]  { --accent: var(--sapphire); }
[data-accent="blue"]      { --accent: var(--blue); }
[data-accent="lavender"]  { --accent: var(--lavender); }


/* ================================================================
   RESET & BASE
   ================================================================ */

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

html {
  height: 100%;
}

body {
  font-family: 'JetBrains Mono', monospace;
  background-color: var(--base);
  color: var(--text);
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.5s ease, color 0.5s ease;
  overflow: hidden;
  position: relative;
}

/* --- Noise grain overlay --- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  z-index: 200;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

[data-theme="latte"] body::after {
  opacity: 0.025;
}


/* ================================================================
   MAIN CONTENT
   ================================================================ */

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
  animation: fadeInUp 0.8s ease both;
  position: relative;
  z-index: 1;
  padding: 20px;
}

/* --- Phase label --- */
#phase {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--subtext0);
  letter-spacing: 0.02em;
  transition: color 0.5s ease;
  min-height: 1.4em;
  line-height: 1.4;
}

#phase.transitioning {
  animation: phaseFade 0.4s ease;
}

/* --- Divider --- */
.divider {
  width: 40px;
  height: 1px;
  background-color: var(--surface2);
  border: none;
  margin: 12px 0 8px;
  transition: background-color 0.5s ease, width 0.5s ease, opacity 0.5s ease;
}

/* --- Timer wrap (ring container) --- */
#timer-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(260px, 40vw, 400px);
  height: clamp(260px, 40vw, 400px);
}

#ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}

#ring .ring-bg {
  fill: none;
  stroke: var(--surface0);
  stroke-width: 1.5;
  transition: stroke 0.5s ease;
}

#ring .ring-fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  transition: stroke 0.5s ease, stroke-dashoffset 0.3s linear;
}

/* Show ring when timer is active */
main.work #ring,
main.break #ring,
main.major-break #ring,
main.paused #ring {
  opacity: 1;
}

/* Dimmed ring for breaks */
main.break #ring .ring-fill,
main.major-break #ring .ring-fill {
  stroke: var(--surface2);
}

/* Paused ring opacity */
main.paused #ring {
  opacity: 0.4;
}

/* --- Timer --- */
#timer {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--text);
  transition: color 0.5s ease;
  position: relative;
  cursor: default;
}

/* Colon blink */
#timer .colon {
  display: inline-block;
  animation: colonPulse 2s ease-in-out infinite;
}

/* --- Clock --- */
#clock {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.65rem, 1.2vw, 0.8rem);
  font-weight: 400;
  color: var(--overlay1);
  letter-spacing: 0.08em;
  margin-top: 12px;
  transition: color 0.5s ease;
}

/* --- Controls (pause / skip / reset) --- */
#controls {
  display: flex;
  align-items: center;
  margin-top: 16px;
  min-height: 24px;
}

.ctrl-btn {
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--overlay0);
  cursor: pointer;
  padding: 4px 0;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
}

.ctrl-btn:hover {
  color: var(--text);
}

.ctrl-sep {
  color: var(--surface2);
  font-size: 0.65rem;
  padding: 0 10px;
  user-select: none;
}

/* --- Progress dots --- */
#progress {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  min-height: 10px;
}

.progress-gap {
  width: 8px;
}

.progress-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--surface1);
  transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.progress-dot.done {
  background-color: var(--accent);
}

.progress-dot.current {
  background-color: var(--accent);
  animation: dotPulse 2s ease-in-out infinite;
}

.progress-dot.current.paused {
  animation: none;
  opacity: 0.5;
}

/* --- Loop counter (replaces dots in loop mode) --- */
.loop-counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--overlay1);
  letter-spacing: 0.04em;
  transition: color 0.5s ease;
}


/* ================================================================
   STATE CLASSES (applied to <main>)
   ================================================================ */

/* --- Idle --- */
main.idle #timer {
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  font-weight: 400;
  color: var(--overlay0);
  letter-spacing: 0.04em;
  cursor: pointer;
}

main.idle #timer:hover {
  color: var(--subtext0);
}

main.idle .divider {
  width: 32px;
  opacity: 0.4;
}

main.idle #phase {
  color: var(--subtext0);
}

/* --- Work --- */
main.work .divider {
  background-color: var(--accent);
  width: 56px;
  opacity: 0.5;
}

main.work #timer {
  color: var(--accent);
}

/* --- Break --- */
main.break #timer {
  color: var(--text);
}

main.break .divider {
  width: 48px;
}

/* --- Major Break --- */
main.major-break #timer {
  color: var(--subtext0);
}

main.major-break .divider {
  width: 48px;
  opacity: 0.4;
}

main.major-break #phase {
  color: var(--overlay1);
}

/* --- Paused --- */
main.paused #timer {
  color: var(--overlay0);
}

main.paused .divider {
  opacity: 0.3;
}

main.paused #timer .colon {
  animation: none;
  opacity: 0.4;
}

/* --- Done --- */
main.done #timer {
  color: var(--surface2);
}

main.done .divider {
  width: 32px;
  opacity: 0.3;
}

main.done #phase {
  color: var(--green);
}

/* --- Waiting (between segments, auto-continue off) --- */
main.waiting #timer {
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  font-weight: 400;
  color: var(--subtext0);
  letter-spacing: 0.04em;
  cursor: pointer;
}

main.waiting #timer:hover {
  color: var(--text);
}

main.waiting .divider {
  width: 40px;
  opacity: 0.4;
}

main.waiting #phase {
  color: var(--accent);
}


/* ================================================================
   SETTINGS TOGGLE
   ================================================================ */

#settings-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 50;
  background: none;
  border: 1px solid transparent;
  color: var(--overlay1);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
  transition: opacity 0.3s ease, color 0.3s ease,
              background-color 0.3s ease, border-color 0.3s ease,
              transform 0.3s ease;
  animation: fadeInUp 0.8s ease 0.3s both;
}

#settings-toggle:hover {
  opacity: 1;
  color: var(--text);
  background-color: var(--surface0);
  border-color: var(--surface1);
}

#settings-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform 0.5s ease;
}

#settings-toggle:hover svg {
  transform: rotate(30deg);
}

#settings-toggle.active {
  opacity: 1;
  color: var(--text);
  background-color: var(--surface0);
  border-color: var(--surface1);
}

#settings-toggle.active svg {
  transform: rotate(60deg);
}


/* ================================================================
   FOCUS MODE TOGGLE
   ================================================================ */

#focus-toggle {
  position: fixed;
  top: 20px;
  right: 64px;
  z-index: 50;
  background: none;
  border: 1px solid transparent;
  color: var(--overlay1);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
  transition: opacity 0.3s ease, color 0.3s ease,
              background-color 0.3s ease, border-color 0.3s ease;
  animation: fadeInUp 0.8s ease 0.3s both;
}

#focus-toggle:hover {
  opacity: 1;
  color: var(--text);
  background-color: var(--surface0);
  border-color: var(--surface1);
}

#focus-toggle svg {
  width: 16px;
  height: 16px;
}

/* ================================================================
   HELP TOGGLE
   ================================================================ */

#help-toggle {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 50;
  background: none;
  border: 1px solid transparent;
  color: var(--overlay1);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 400;
  transition: opacity 0.3s ease, color 0.3s ease,
              background-color 0.3s ease, border-color 0.3s ease;
  animation: fadeInUp 0.8s ease 0.3s both;
}

#help-toggle:hover {
  opacity: 1;
  color: var(--text);
  background-color: var(--surface0);
  border-color: var(--surface1);
}

/* --- Focus mode active --- */
body.focus-mode #settings-toggle,
body.focus-mode #focus-toggle,
body.focus-mode #help-toggle,
body.focus-mode #progress,
body.focus-mode #clock,
body.focus-mode #controls {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

body.focus-mode #phase {
  opacity: 0;
}

/* Focus hint */
#focus-hint {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--overlay0);
  opacity: 0;
  visibility: hidden;
  z-index: 80;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  pointer-events: none;
}

#focus-hint.visible {
  opacity: 1;
  visibility: visible;
}


/* ================================================================
   KEYBOARD HINTS PANEL
   ================================================================ */

#hints {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--subtext0);
  background-color: var(--mantle);
  border: 1px solid var(--surface0);
  border-radius: 8px;
  padding: 12px 20px;
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  max-width: 420px;
  justify-content: center;
}

#hints.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.hint-item {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.hint-key {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--surface1);
  border-radius: 3px;
  font-size: 0.55rem;
  color: var(--text);
  background-color: var(--surface0);
}

.hint-label {
  color: var(--overlay1);
}


/* ================================================================
   SETTINGS DRAWER
   ================================================================ */

#drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 360px;
  max-width: 100vw;
  background-color: var(--mantle);
  border-left: 1px solid var(--surface0);
  z-index: 100;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              background-color 0.5s ease, border-color 0.5s ease;
  overflow-y: auto;
  overflow-x: hidden;
}

#drawer.open {
  transform: translateX(0);
}

#drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--crust);
  opacity: 0;
  visibility: hidden;
  z-index: 99;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  cursor: pointer;
}

#drawer-backdrop.open {
  opacity: 0.5;
  visibility: visible;
}

.drawer-inner {
  padding: 72px 28px 40px;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* --- Drawer close button --- */
#drawer-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: 1px solid transparent;
  color: var(--overlay1);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  line-height: 1;
  opacity: 0.5;
  transition: opacity 0.3s ease, color 0.3s ease,
              background-color 0.3s ease, border-color 0.3s ease;
}

#drawer-close:hover {
  opacity: 1;
  color: var(--text);
  background-color: var(--surface0);
  border-color: var(--surface1);
}

/* --- Section --- */
.drawer-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 0;
  border-bottom: 1px solid var(--surface0);
}

.drawer-section:first-child {
  padding-top: 0;
}

.drawer-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.drawer-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--overlay0);
  margin-bottom: 2px;
  transition: color 0.5s ease;
}

/* --- Preset buttons --- */
.preset-row {
  display: flex;
  gap: 10px;
}

.preset-btn {
  flex: 1;
  padding: 10px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--subtext0);
  background: none;
  border: 1px solid var(--surface1);
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.preset-btn:hover {
  color: var(--text);
  border-color: var(--surface2);
  background-color: var(--surface0);
}

.preset-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 6%, transparent);
}

/* --- Custom preset button (with delete) --- */
.custom-preset-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
}

.custom-preset-wrap .preset-btn {
  width: 100%;
  padding-right: 26px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-preset-delete {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--overlay0);
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease;
}

.custom-preset-wrap:hover .custom-preset-delete {
  opacity: 1;
}

.custom-preset-delete:hover {
  color: var(--red);
}

/* --- Save preset UI --- */
#save-preset-wrap {
  margin-top: 2px;
}

.save-preset-input {
  display: flex;
  align-items: center;
  gap: 6px;
}

.save-preset-input input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text);
  background-color: var(--surface0);
  border: none;
  border-bottom: 1px solid var(--surface2);
  border-radius: 6px 6px 0 0;
  outline: none;
  transition: border-color 0.2s ease, color 0.5s ease, background-color 0.5s ease;
}

.save-preset-input input[type="text"]:focus {
  border-bottom-color: var(--accent);
}

.save-preset-input input[type="text"]::placeholder {
  color: var(--overlay0);
}

.preset-name-confirm {
  background: none;
  border: 1px solid var(--surface1);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 5px;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.preset-name-confirm:hover {
  border-color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 6%, transparent);
}

.preset-name-cancel {
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--overlay0);
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
  transition: color 0.2s ease;
}

.preset-name-cancel:hover {
  color: var(--red);
}

#custom-presets-row:empty {
  display: none;
}

/* --- Import/export row --- */
.preset-io-row {
  display: flex;
  gap: 16px;
  margin-top: 2px;
}

/* --- Field rows (work/break inputs) --- */
.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 32px;
}

.field-row label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--subtext0);
  transition: color 0.5s ease;
}

.field-row + .field-row {
  margin-top: 2px;
}

.field-input {
  display: flex;
  align-items: center;
  gap: 8px;
}

.field-unit {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--overlay0);
  transition: color 0.5s ease;
}

input[type="number"] {
  width: 56px;
  padding: 6px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text);
  background-color: var(--surface0);
  border: none;
  border-bottom: 1px solid var(--surface2);
  border-radius: 6px 6px 0 0;
  text-align: center;
  outline: none;
  transition: border-color 0.2s ease, color 0.5s ease,
              background-color 0.5s ease;
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"]:focus {
  border-bottom-color: var(--accent);
}

/* --- Block rows --- */
#blocks-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.block-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background-color: var(--base);
  border-radius: 8px;
  animation: fadeInUp 0.25s ease both;
  transition: background-color 0.5s ease;
}

.block-row input[type="number"] {
  width: 46px;
  padding: 5px 6px;
  font-size: 0.75rem;
  background-color: var(--surface0);
  border-radius: 4px 4px 0 0;
}

.block-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--overlay0);
  white-space: nowrap;
  transition: color 0.5s ease;
}

.block-arrow {
  font-size: 0.7rem;
  color: var(--surface2);
  transition: color 0.5s ease;
}

.block-remove {
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--overlay0);
  cursor: pointer;
  padding: 2px 6px;
  line-height: 1;
  border-radius: 4px;
  transition: color 0.2s ease, background-color 0.2s ease;
  flex-shrink: 0;
  margin-left: auto;
}

.block-remove:hover {
  color: var(--red);
  background-color: var(--surface0);
}

.block-end-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--green);
  letter-spacing: 0.04em;
  transition: color 0.5s ease;
}

/* --- Text buttons (add block, theme switch) --- */
.text-btn {
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--overlay0);
  cursor: pointer;
  padding: 6px 0;
  letter-spacing: 0.02em;
  text-align: left;
  transition: color 0.2s ease;
}

.text-btn:hover {
  color: var(--text);
}

/* --- Accent picker (in drawer) --- */
#accent-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.accent-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.accent-dot:hover {
  transform: scale(1.15);
}

.accent-dot.active {
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--mantle);
}

/* --- Theme switch button --- */
#theme-switch {
  margin-top: 4px;
}

/* --- Toggle switch --- */
.toggle {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  display: block;
  width: 34px;
  height: 18px;
  border-radius: 9px;
  background-color: var(--surface1);
  transition: background-color 0.2s ease;
  position: relative;
}

.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--overlay0);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.toggle input:checked + .toggle-track {
  background-color: color-mix(in srgb, var(--accent) 30%, var(--surface0));
}

.toggle input:checked + .toggle-track::after {
  transform: translateX(16px);
  background-color: var(--accent);
}

/* --- Range slider (volume) --- */
.volume-control {
  display: flex;
  align-items: center;
  gap: 10px;
}

.volume-control input[type="number"] {
  width: 46px;
  padding: 4px 6px;
  font-size: 0.7rem;
  text-align: center;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 4px;
  border-radius: 2px;
  background: var(--surface1);
  outline: none;
  transition: background 0.2s ease;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

/* --- Tone selector buttons --- */
.tone-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tone-row-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--subtext0);
  white-space: nowrap;
  transition: color 0.5s ease;
}

.tone-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.tone-btn {
  padding: 4px 9px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 400;
  color: var(--overlay0);
  background: none;
  border: 1px solid var(--surface1);
  border-radius: 5px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.tone-btn:hover {
  color: var(--text);
  border-color: var(--surface2);
  background-color: var(--surface0);
}

.tone-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 6%, transparent);
}


/* ================================================================
   ANIMATIONS
   ================================================================ */

/* --- Flash overlay --- */
#flash-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--accent);
  opacity: 0;
  pointer-events: none;
  z-index: 150;
  transition: opacity 0.1s ease;
}

#flash-overlay.flash {
  animation: flashPulse 0.4s ease-out forwards;
}

/* --- Toast --- */
#toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text);
  background-color: var(--surface0);
  border: 1px solid var(--surface1);
  border-radius: 8px;
  padding: 8px 16px;
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

#toast.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

#toast .toast-undo {
  background: none;
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}

#toast .toast-undo:hover {
  color: var(--text);
}

@keyframes flashPulse {
  0%   { opacity: 0.2; }
  100% { opacity: 0; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes phaseFade {
  0%   { opacity: 0; transform: translateY(-4px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes colonPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.25; }
}

@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50%      { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 30%, transparent); }
}


/* ================================================================
   RESPONSIVE
   ================================================================ */

/* --- Tablet / medium screens --- */
@media (max-width: 768px) {
  #drawer {
    width: 340px;
  }

  .drawer-inner {
    padding: 64px 24px 36px;
  }

  #hints {
    max-width: 360px;
    padding: 10px 16px;
  }
}

/* --- Small screens / phones --- */
@media (max-width: 480px) {
  body {
    align-items: flex-start;
    padding-top: env(safe-area-inset-top, 0);
  }

  main {
    padding: 16px;
    min-height: 100dvh;
    justify-content: center;
  }

  /* Timer sizing */
  #timer-wrap {
    width: clamp(200px, 72vw, 280px);
    height: clamp(200px, 72vw, 280px);
  }

  #timer {
    font-size: clamp(2.4rem, 12vw, 3.5rem);
  }

  main.idle #timer,
  main.waiting #timer {
    font-size: clamp(0.75rem, 3.2vw, 0.95rem);
  }

  #phase {
    font-size: clamp(0.85rem, 3.5vw, 1.15rem);
  }

  #clock {
    font-size: clamp(0.6rem, 2.5vw, 0.75rem);
    margin-top: 8px;
  }

  /* Controls — larger tap targets */
  #controls {
    margin-top: 12px;
    min-height: 40px;
  }

  .ctrl-btn {
    font-size: 0.75rem;
    padding: 10px 2px;
    min-width: 44px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .ctrl-sep {
    padding: 0 8px;
  }

  /* Progress dots */
  #progress {
    gap: 5px;
    margin-top: 6px;
  }

  .progress-dot {
    width: 5px;
    height: 5px;
  }

  .progress-gap {
    width: 6px;
  }

  /* Full-width drawer */
  #drawer {
    width: 100vw;
  }

  .drawer-inner {
    padding: 60px 20px 32px;
  }

  #drawer-close {
    top: 16px;
    right: 16px;
  }

  .drawer-section {
    gap: 12px;
    padding: 20px 0;
  }

  /* Preset buttons — wrap and fill */
  .preset-row {
    flex-wrap: wrap;
  }

  .preset-btn {
    padding: 10px 12px;
    font-size: 0.7rem;
    min-height: 40px;
  }

  .custom-preset-wrap {
    min-width: calc(50% - 5px);
  }

  /* Block rows — compact layout */
  .block-row {
    gap: 8px;
    padding: 8px;
    flex-wrap: wrap;
  }

  .block-row input[type="number"] {
    width: 42px;
    padding: 5px 4px;
    font-size: 0.7rem;
  }

  .block-label {
    font-size: 0.6rem;
  }

  .block-end-label {
    font-size: 0.55rem;
  }

  /* Volume control — stack range below */
  .volume-control {
    gap: 8px;
  }

  input[type="range"] {
    width: 96px;
  }

  /* Tone grid — still 3 cols but tighter */
  .tone-selector {
    gap: 5px;
  }

  .tone-btn {
    padding: 6px 6px;
    font-size: 0.58rem;
    min-height: 36px;
  }

  /* Accent picker — tighter on mobile */
  #accent-picker {
    gap: 6px;
  }

  .accent-dot {
    width: 28px;
    height: 28px;
  }

  /* Toggle switches — slightly larger tap area */
  .toggle-track {
    width: 38px;
    height: 20px;
    border-radius: 10px;
  }

  .toggle-track::after {
    width: 16px;
    height: 16px;
  }

  .toggle input:checked + .toggle-track::after {
    transform: translateX(18px);
  }

  /* Field rows */
  .field-row label {
    font-size: 0.72rem;
  }

  input[type="number"] {
    width: 52px;
    padding: 6px 8px;
    font-size: 0.75rem;
  }

  /* Settings / Focus / Help toggles — adjusted for mobile */
  #settings-toggle,
  #focus-toggle {
    top: 16px;
  }

  #settings-toggle {
    right: 16px;
  }

  #focus-toggle {
    right: 56px;
  }

  #help-toggle {
    bottom: 16px;
    left: 16px;
  }

  /* Toast — edge-to-edge with margins (override desktop translateX centering) */
  #toast {
    left: 16px;
    right: 16px;
    bottom: 24px;
    transform: translateX(0) translateY(20px);
    max-width: none;
    justify-content: center;
    font-size: 0.68rem;
  }

  #toast.visible {
    transform: translateX(0) translateY(0);
  }

  /* Hints panel */
  #hints {
    left: 16px;
    right: 16px;
    bottom: 24px;
    transform: translateY(10px);
    max-width: none;
    padding: 10px 14px;
    font-size: 0.55rem;
    gap: 6px 14px;
  }

  #hints.visible {
    transform: translateY(0);
  }

  /* Focus hint */
  #focus-hint {
    bottom: 24px;
  }

  /* Text buttons — larger tap targets */
  .text-btn {
    padding: 8px 0;
    font-size: 0.7rem;
    min-height: 36px;
  }

  /* Import/export row */
  .preset-io-row {
    gap: 12px;
  }

  /* Save preset input */
  .save-preset-input input[type="text"] {
    padding: 8px 10px;
    font-size: 0.7rem;
  }

  .preset-name-confirm {
    padding: 6px 12px;
    min-height: 36px;
  }

  .preset-name-cancel {
    padding: 4px 8px;
    font-size: 1rem;
    min-height: 36px;
    display: flex;
    align-items: center;
  }
}

/* --- Very small screens (< 360px) --- */
@media (max-width: 360px) {
  #timer-wrap {
    width: clamp(180px, 68vw, 240px);
    height: clamp(180px, 68vw, 240px);
  }

  #timer {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  main.idle #timer,
  main.waiting #timer {
    font-size: clamp(0.68rem, 3vw, 0.85rem);
  }

  .drawer-inner {
    padding: 56px 16px 28px;
  }

  .drawer-section {
    gap: 10px;
    padding: 16px 0;
  }

  .preset-btn {
    padding: 8px 8px;
    font-size: 0.65rem;
  }

  .block-row {
    padding: 6px;
  }

  input[type="range"] {
    width: 80px;
  }

  .accent-dot {
    width: 24px;
    height: 24px;
  }
}

/* --- Prevent body scroll when drawer is open (mobile) --- */
body.drawer-open {
  overflow: hidden;
}

/* --- Safe area padding for notched phones --- */
@supports (padding: env(safe-area-inset-bottom)) {
  #toast {
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }

  #hints {
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
  }

  #help-toggle {
    bottom: calc(20px + env(safe-area-inset-bottom));
  }

  #focus-hint {
    bottom: calc(32px + env(safe-area-inset-bottom));
  }
}


/* ================================================================
   REDUCED MOTION
   ================================================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  body::after {
    display: none;
  }
}