:root {
  --primary-hue: 10;
  --bg-dark: #f8f6f2;
  --ink-rgb: 31, 26, 23;
  --text-main: #1f1a17;
  --text-muted: rgba(31, 26, 23, 0.6);
  --text-faint: rgba(31, 26, 23, 0.45);
  --card-bg: rgba(255, 255, 255, 0.86);
  --card-border: rgba(31, 26, 23, 0.1);
  --card-highlight: rgba(31, 26, 23, 0.04);
  --line: rgba(31, 26, 23, 0.12);
  --accent-color: hsl(var(--primary-hue), 80%, 60%);
  --accent-strong: hsl(var(--primary-hue), 80%, 55%);
  --accent-glow: hsla(var(--primary-hue), 80%, 60%, 0.25);
  --accent-ink: #1a0e0a;
  --bg-spot-1: rgba(255, 140, 120, 0.25);
  --bg-spot-2: rgba(255, 140, 120, 0.15);
  --shape-1: rgba(255, 140, 120, 0.32);
  --shape-2: rgba(255, 140, 120, 0.2);
  --header-bg: rgba(255, 255, 255, 0.78);
  --footer-bg: rgba(255, 255, 255, 0.6);
  --overlay-bg: rgba(15, 15, 19, 0.22);
  --card-shadow: 0 20px 48px rgba(20, 16, 14, 0.08);
  --card-inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  --panel-bg: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(245, 243, 241, 0.94));
  --panel-header-bg: linear-gradient(160deg, rgba(250, 249, 248, 0.98), rgba(242, 240, 238, 0.96));
  --panel-tabs-bg: rgba(246, 245, 243, 0.96);
  --panel-content-bg: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(246, 244, 242, 0.96));
  --panel-shadow: 0 20px 48px rgba(20, 16, 14, 0.08);
  --tab-active-bg: linear-gradient(160deg, rgba(255, 120, 98, 0.22), rgba(255, 120, 98, 0.12));
  --tab-active-border: rgba(255, 120, 98, 0.45);
  --tab-active-text: #1f1a17;
  --time-glow: 0 0 18px rgba(255, 120, 98, 0.18);
  --ring-bg: rgba(var(--ink-rgb), 0.12);
  --ring-fg: var(--accent-color);
  --scrollbar-thumb: rgba(31, 26, 23, 0.35);
  --scrollbar-track: rgba(31, 26, 23, 0.08);
}

body[data-theme="break"] {
  --primary-hue: 110;
  --accent-color: hsl(110, 45%, 42%);
  --accent-strong: hsl(110, 45%, 36%);
  --accent-glow: hsla(110, 45%, 45%, 0.25);
  --bg-spot-1: hsla(110, 35%, 55%, 0.25);
  --bg-spot-2: hsla(110, 35%, 55%, 0.15);
  --shape-1: hsla(110, 35%, 55%, 0.32);
  --shape-2: hsla(110, 35%, 55%, 0.2);
  --time-glow: 0 0 18px hsla(110, 45%, 45%, 0.25);
}

body[data-theme="break"] .ring-fg {
  stroke: var(--accent-color);
}

body.theme-dark {
  --bg-dark: #0b0b0f;
  --ink-rgb: 255, 255, 255;
  --text-main: #f4f2f0;
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-faint: rgba(255, 255, 255, 0.45);
  --card-bg: rgba(20, 20, 24, 0.92);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-highlight: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.08);
  --accent-glow: hsla(var(--primary-hue), 80%, 60%, 0.45);
  --bg-spot-1: rgba(255, 110, 90, 0.35);
  --bg-spot-2: rgba(255, 110, 90, 0.22);
  --shape-1: rgba(255, 110, 90, 0.45);
  --shape-2: rgba(255, 110, 90, 0.25);
  --header-bg: rgba(15, 15, 19, 0.7);
  --footer-bg: rgba(15, 15, 19, 0.6);
  --overlay-bg: rgba(10, 10, 14, 0.7);
  --card-shadow: 0 22px 60px rgba(0, 0, 0, 0.42);
  --card-inner-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --panel-bg: linear-gradient(160deg, rgba(24, 26, 32, 0.98), rgba(16, 18, 24, 0.96));
  --panel-header-bg: linear-gradient(160deg, rgba(26, 28, 34, 0.98), rgba(18, 20, 26, 0.96));
  --panel-tabs-bg: rgba(34, 36, 42, 0.96);
  --panel-content-bg: linear-gradient(160deg, rgba(26, 28, 34, 0.96), rgba(20, 22, 28, 0.96));
  --panel-shadow: 0 22px 60px rgba(0, 0, 0, 0.42);
  --tab-active-bg: linear-gradient(160deg, rgba(255, 120, 98, 0.32), rgba(255, 120, 98, 0.16));
  --tab-active-border: rgba(255, 120, 98, 0.6);
  --tab-active-text: #fff;
  --time-glow: 0 0 18px rgba(255, 120, 98, 0.25);
  --ring-bg: rgba(255, 255, 255, 0.22);
  --ring-fg: var(--accent-color);
  --scrollbar-thumb: rgba(255, 255, 255, 0.35);
  --scrollbar-track: rgba(255, 255, 255, 0.08);
}

body.theme-dark[data-theme="break"] {
  --primary-hue: 110;
  --accent-color: hsl(110, 45%, 52%);
  --accent-strong: hsl(110, 45%, 45%);
  --accent-glow: hsla(110, 45%, 55%, 0.45);
  --bg-spot-1: hsla(110, 35%, 45%, 0.35);
  --bg-spot-2: hsla(110, 35%, 35%, 0.22);
  --shape-1: hsla(110, 35%, 45%, 0.4);
  --shape-2: hsla(110, 35%, 35%, 0.25);
  --time-glow: 0 0 18px hsla(110, 45%, 55%, 0.35);
}

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

html {
  height: auto;
  min-height: 100%;
}

html body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  color: var(--text-main);
  font-family: "Outfit", sans-serif;
  background:
    radial-gradient(60% 90% at 10% 0%, var(--bg-spot-1), transparent 55%),
    radial-gradient(70% 80% at 90% 90%, var(--bg-spot-2), transparent 60%),
    var(--bg-dark);
  overflow-x: hidden;
  transition: background-color 0.5s ease;
}

body.page-pomodoro {
  min-height: 100vh;
  height: auto;
  --site-header-height: 68px;
}

body.is-modal-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

html.is-modal-open {
  overflow: hidden;
}

html.is-modal-open,
body.is-modal-open {
  overscroll-behavior: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

html body .site-header {
  background: transparent;
  border-bottom: none;
  backdrop-filter: none;
}

html body .site-footer {
  background: var(--footer-bg);
  border-top: 1px solid var(--line);
}

body.page-pomodoro .site-footer {
  margin-top: 0;
}

#site-footer {
  width: 100%;
  margin-top: auto;
  flex-shrink: 0;
}

body.page-pomodoro #site-footer {
  margin-top: 0;
}

html body .brand-name,
html body .footer-inner,
html body .footer-links a {
  color: var(--text-main);
}

html body .brand-icon {
  color: var(--accent-color);
}

html body .icon-btn {
  background: transparent;
  border-color: transparent;
}

html body .icon-btn .material-symbols-outlined {
  color: var(--text-main);
}

html body .icon-btn:hover:not(:disabled),
html body .icon-btn:focus-visible {
  background: rgba(var(--ink-rgb), 0.05);
  border-color: rgba(var(--ink-rgb), 0.08);
}

.bg-shape {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  opacity: 0.55;
  transition: background 1s ease;
  pointer-events: none;
}

.shape-1 {
  width: 520px;
  height: 520px;
  top: -220px;
  left: -200px;
  background: var(--shape-1);
  animation: float 12s infinite ease-in-out;
}

.shape-2 {
  width: 440px;
  height: 440px;
  bottom: -240px;
  right: -180px;
  background: var(--shape-2);
  animation: float 14s infinite ease-in-out reverse;
}

@keyframes float {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(26px, 18px);
  }
}

.app-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0px 20px 20px;
  position: relative;
  flex: 1 0 auto;
  isolation: isolate;
}

body.page-pomodoro .app-container {
  height: calc(100vh - var(--site-header-height));
  height: calc(100svh - var(--site-header-height));
  height: calc(100dvh - var(--site-header-height));
  display: flex;
  flex-direction: column;
  flex: 1 0 auto;
  padding-bottom: 0;
}

body.page-pomodoro .layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  grid-template-areas:
    "settings timer"
    "lower timer";
  gap: 22px;
  align-items: stretch;
  align-content: start;
  flex: 1 0 auto;
}

body.page-pomodoro .left-col {
  grid-area: settings;
  display: grid;
  gap: 18px;
}

body.page-pomodoro .panel-row {
  grid-area: lower;
  display: grid;
  gap: 18px;
}

body.page-pomodoro .right-col {
  grid-area: timer;
  display: flex;
  align-items: stretch;
  align-self: stretch;
  min-width: 0;
}

body.page-pomodoro .panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px 22px;
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(18px);
}

body.page-pomodoro .panel-emphasis {
  background: var(--card-bg);
}

body.page-pomodoro .panel-time {
  position: relative;
  padding: 24px;
}

body.page-pomodoro .panel-time .panel-title {
  position: static;
  margin: 0 0 16px;
  padding: 4px 10px;
  background: var(--panel-bg);
  border-radius: 999px;
  display: inline-flex;
  align-self: flex-start;
}

body.page-pomodoro .panel-title {
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-main);
}

body.page-pomodoro .panel-title .material-symbols-outlined {
  font-size: 20px;
  color: var(--accent-color);
}

body.page-pomodoro .panel-title.is-muted {
  color: var(--text-muted);
}

body.page-pomodoro .panel-title.is-muted .material-symbols-outlined {
  color: var(--text-muted);
}

@media (max-width: 980px) and (min-width: 721px) {
  body.page-pomodoro .layout {
    grid-template-columns: clamp(300px, calc(7.7vw + 244px), 320px) 1fr 1fr;
    grid-template-areas:
      "settings timer timer"
      "lower timer timer";
  }

  body.page-pomodoro .time-setting-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.page-pomodoro .panel-row {
    grid-template-columns: 1fr;
  }

  body.page-pomodoro .panel-advanced .settings-section {
    display: grid;
    gap: 18px;
    align-items: start;
  }

  body.page-pomodoro .panel-advanced .settings-section > .auto-start-options {
    margin-top: 0;
  }

  body.page-pomodoro #remaining-time-format {
    margin-top: 0;
    margin-left: 30px;
    width: calc(100% - 30px);
  }
}

@media (max-width: 720px) and (min-width: 521px) {
  body.page-pomodoro .layout {
    grid-template-columns: clamp(175px, 32vw, 235px) minmax(0, 1fr);
    grid-template-areas:
      "settings timer"
      "lower lower";
  }

  body.page-pomodoro .timer-card {
    --ring-size: clamp(260px, 52vw, 360px);
  }

  body.page-pomodoro .panel-advanced .settings-section {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "auto-start show-time"
      "auto-start format";
    gap: 12px 24px;
    align-items: start;
  }

  body.page-pomodoro .panel-advanced .settings-section > .auto-start-options {
    grid-area: auto-start;
    margin-top: 0;
  }

  body.page-pomodoro .panel-advanced .settings-section > .auto-start-options + .auto-start-options {
    margin-top: 0;
    grid-area: show-time;
  }

  body.page-pomodoro #remaining-time-format {
    grid-area: format;
    margin: 0 0 0 32px;
    width: calc(100% - 32px);
  }
}

@media (max-width: 520px) {
  body.page-pomodoro .layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "timer"
      "settings"
      "lower";
  }

  body.page-pomodoro .timer-card {
    min-height: 400px;
    --timer-card-pad: 8px;
    padding: var(--timer-card-pad);
    row-gap: 12px;
    grid-template-rows: auto auto;
    align-items: start;
  }

  .time-setting-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.timer-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow), var(--card-inner-highlight);
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  justify-items: center;
  row-gap: 18px;
  --timer-card-pad: 18px;
  padding: var(--timer-card-pad);
  width: 100%;
  min-height: 0;
  height: 100%;
  position: relative;
  overflow: visible;
  --ring-size: clamp(365px, 44vw, 500px);
}

.timer-stage {
  position: relative;
  width: min(100%, var(--ring-size));
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}

.timer-volume {
  --volume-slider-length: 70px;
  --volume-popover-gap: 8px;
  position: absolute;
  left: var(--timer-card-pad);
  top: var(--timer-card-pad);
  z-index: 2;
}

.timer-volume .icon-button-small {
  width: 34px;
  height: 34px;
  position: relative;
  justify-self: center;
}

.timer-volume .material-symbols-outlined {
  font-size: 20px;
}

.timer-volume .volume-controls {
  position: absolute;
  left: calc(100% + var(--volume-popover-gap));
  top: 50%;
  transform: translateY(-50%) scaleX(0.85);
  transform-origin: left center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.timer-volume.is-open .volume-controls {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(-50%) scaleX(1);
}

.timer-volume .volume-popover {
  width: calc(var(--volume-slider-length) + 20px);
  height: 28px;
  padding: 0 8px;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  background: rgba(var(--ink-rgb), 0.08);
  border: 1px solid rgba(var(--ink-rgb), 0.18);
  border-radius: 16px;
  box-shadow: var(--panel-shadow);
}

.timer-volume .volume-slider {
  width: var(--volume-slider-length);
  height: 10px;
  display: block;
  margin: 0;
  accent-color: var(--accent-color);
  appearance: none;
  background: transparent;
  --volume-fill: 50%;
  background-image: linear-gradient(
    90deg,
    var(--accent-color) 0%,
    var(--accent-color) var(--volume-fill),
    rgba(var(--ink-rgb), 0.25) var(--volume-fill),
    rgba(var(--ink-rgb), 0.25) 100%
  );
  background-size: 100% 5px;
  background-position: center;
  background-repeat: no-repeat;
}

.timer-volume .volume-slider::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 999px;
  background: transparent;
}

.timer-volume .volume-slider::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -4px;
  border-radius: 999px;
  background: var(--accent-color);
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 1px rgba(var(--ink-rgb), 0.2);
}

.timer-volume .volume-slider::-moz-range-track {
  height: 5px;
  border-radius: 999px;
  background: rgba(var(--ink-rgb), 0.25);
}

.timer-volume .volume-slider::-moz-range-progress {
  height: 5px;
  border-radius: 999px;
  background: var(--accent-color);
}

.timer-volume .volume-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 999px;
  background: var(--accent-color);
}

.timer-volume .volume-test-btn {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: none;
  display: grid;
  place-items: center;
  background: var(--accent-color);
  color: var(--accent-ink);
  box-shadow: 0 6px 16px rgba(var(--accent-rgb), 0.25);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
  padding: 0;
}

.timer-volume .volume-test-btn .material-symbols-outlined {
  font-size: 18px;
}

.timer-volume .volume-test-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(var(--accent-rgb), 0.35);
  filter: brightness(1.02);
}

.timer-ring {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  opacity: 0.9;
  pointer-events: none;
}

.ring {
  width: 100%;
  height: 100%;
  transform: scaleX(-1) rotate(-90deg);
}

.ring-bg,
.ring-fg {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
}

.ring-bg {
  stroke: var(--ring-bg);
  transition: stroke 300ms ease;
}

.ring-fg {
  stroke: var(--ring-fg);
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: stroke-dashoffset 220ms ease, stroke 300ms ease;
}

.timer-center {
  position: absolute;
  inset: 0;
  text-align: center;
  --time-size: clamp(64px, 7.5vw, 85px);
  --hint-gap: clamp(8px, 2vw, 16px);
  --hint-offset: calc(var(--time-size) / 2 + var(--hint-gap));
}

.timer-time {
  font-size: var(--time-size);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--accent-color);
  text-shadow: var(--time-glow);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.timer-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%);
  margin-top: var(--hint-offset);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.timer-hint .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-glow);
}

#status-text {
  color: var(--accent-color);
  transition: color 0.5s ease;
  display: inline-block;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.icon-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: rgba(var(--ink-rgb), 0.04);
  border: 1px solid rgba(var(--ink-rgb), 0.08);
  color: var(--text-main);
  cursor: pointer;
  border-radius: 999px;
  transition: background 0.2s, transform 0.2s, border-color 0.2s;
}

.icon-button:hover {
  background: rgba(var(--ink-rgb), 0.12);
  border-color: rgba(var(--ink-rgb), 0.18);
  transform: rotate(12deg);
}


.panel-time .controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
}

#active-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.panel-time .btn {
  padding: 12px 30px;
  font-size: 1.02rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: none;
  min-width: 110px;
}

.panel-time .controls {
  width: 100%;
}

.panel-time .controls #start-btn {
  flex: 1 1 auto;
  width: 100%;
}

body.page-pomodoro .panel-time .btn-primary,
body.page-pomodoro .panel-time .btn-primary:not(:disabled) {
  background: linear-gradient(180deg, var(--accent-color), var(--accent-strong));
  color: var(--accent-ink);
  box-shadow: 0 12px 30px var(--accent-glow);
  border: 1px solid transparent;
}

body.page-pomodoro .panel-time #start-btn.btn-primary {
  color: #fff;
  box-shadow: none;
}

body.page-pomodoro .panel-time #resume-btn.btn-primary {
  color: #fff;
  box-shadow: none;
}

body.page-pomodoro .panel-time #start-btn.btn-primary:hover:not(:disabled) {
  box-shadow: none;
}

body.page-pomodoro .panel-time .btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px var(--accent-glow);
  filter: none;
}

.panel-time .btn-secondary {
  background: rgba(var(--ink-rgb), 0.08);
  color: var(--text-main);
  border: 1px solid rgba(var(--ink-rgb), 0.12);
}

.panel-time .btn-secondary:hover {
  background: rgba(var(--ink-rgb), 0.16);
}

.panel-time .btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
}

.panel-time .btn-ghost:hover {
  color: var(--text-main);
  text-decoration: underline;
}

.hidden {
  display: none !important;
}

.timer-card .stats-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 100%;
  margin-top: -50px;
  padding-inline: 20px;
}

.timer-card .stat-item {
  display: flex;
  flex-direction: column;
  /* gap: 6px; */
  text-align: left;
  align-items: flex-start;
  flex: 1 1 0;
  min-width: 0;
}

.timer-card .stat-item--break {
  text-align: right;
  align-items: flex-end;
}

.timer-card .stat-value-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.timer-card .stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.timer-card .stat-value {
  color: var(--text-main);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
}

.timer-card .icon-button-small {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(var(--ink-rgb), 0.12);
  background: rgba(var(--ink-rgb), 0.05);
  display: grid;
  place-items: center;
  color: rgba(var(--ink-rgb), 0.5);
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
  position: static;
  justify-self: end;
}

.timer-card .icon-button-small:hover {
  color: var(--text-main);
  background: rgba(var(--ink-rgb), 0.12);
  border-color: rgba(var(--ink-rgb), 0.2);
}


.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-bg);
  backdrop-filter: blur(6px);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 12vh 16px;
  overflow-y: auto;
  opacity: 0;
  animation: fadeIn 0.3s forwards;
  overscroll-behavior: contain;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.settings-panel {
  background: var(--panel-bg);
  width: min(400px, 90vw);
  max-width: 400px;
  max-height: min(88vh, 720px);
  height: var(--settings-panel-height, auto);
  border-radius: 28px;
  padding: 0;
  box-shadow: var(--panel-shadow);
  border: 1px solid var(--card-border);
  transform: translateY(20px);
  animation: slideUp 0.3s forwards;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 24px;
  background: var(--panel-header-bg);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 1;
}

.settings-title {
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(var(--ink-rgb), 0.55);
  line-height: 1.1;
}

.settings-header .icon-button {
  width: 30px;
  height: 30px;
}

.settings-header .icon-button svg {
  width: 18px;
  height: 18px;
}

.settings-body {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
  overflow: hidden;
}

.settings-tabs {
  position: relative;
  padding: 0;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0;
  background: var(--panel-tabs-bg);
  border-right: none;
  border-bottom: 1px solid var(--line);
  box-shadow: inset 0 -1px 0 rgba(var(--ink-rgb), 0.04);
  flex-shrink: 0;
}

.settings-tabs::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -50px;
  width: 170px;
  height: 170px;
  background: radial-gradient(circle, rgba(255, 120, 98, 0.35), transparent 70%);
  filter: blur(6px);
  opacity: 0.9;
  pointer-events: none;
  display: none;
}

.settings-tab {
  appearance: none;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: auto;
  flex: 1;
  padding: 7px 12px;
  border-radius: 0;
  border: none;
  border-right: 1px solid rgba(var(--ink-rgb), 0.08);
  border-bottom: 2px solid transparent;
  background: transparent;
  color: rgba(var(--ink-rgb), 0.68);
  cursor: pointer;
  text-align: center;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease, transform 0.2s ease;
}

.settings-tab:last-child {
  border-right: none;
}

.settings-tab .tab-icon {
  width: 20px;
  height: 20px;
  border-radius: 0;
  display: grid;
  place-items: center;
  background: transparent;
  border: none;
  color: rgba(var(--ink-rgb), 0.65);
  transition: color 0.2s ease, transform 0.2s ease;
  flex: 0 0 auto;
}

.settings-tab .tab-icon svg,
.settings-tab .tab-icon .material-symbols-outlined {
  width: 18px;
  height: 18px;
  font-size: 18px;
  line-height: 1;
}

.settings-tab .tab-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.settings-tab:hover {
  background: rgba(var(--ink-rgb), 0.06);
}

.settings-tab:focus-visible {
  outline: 2px solid rgba(var(--ink-rgb), 0.3);
  outline-offset: 2px;
}

.settings-tab.is-active {
  background: var(--tab-active-bg);
  border-bottom-color: var(--tab-active-border);
  color: var(--tab-active-text);
  box-shadow: none;
  transform: none;
}

.settings-tab.is-active .tab-icon {
  color: var(--accent-color);
}

.settings-content {
  padding: 22px 30px 30px;
  overflow-y: auto;
  overscroll-behavior: contain;
  min-height: 0;
  background: var(--panel-content-bg);
  box-shadow: none;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.settings-content::-webkit-scrollbar {
  width: 6px;
}

.settings-content::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 999px;
}

.settings-content::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
}

.settings-tab-panel {
  display: none;
  animation: panelFade 0.2s ease;
}

.settings-tab-panel.is-active {
  display: block;
}

@keyframes panelFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-panel-header {
  margin-bottom: 18px;
}

.tab-panel-title {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-main);
}

.tab-panel-subtitle {
  margin-top: 6px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.tab-panel-title::after {
  content: "";
  display: block;
  width: 100%;
  height: 3px;
  margin-top: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-color), rgba(255, 255, 255, 0));
  /* box-shadow: 0 0 12px var(--accent-glow); */
}

.settings-content hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 28px 0;
}

.settings-content .sub-divider {
  border: none;
  border-top: 1px solid rgba(var(--ink-rgb), 0.08);
  margin: 24px 0;
}

.settings-section h3 {
  font-size: 0.98rem;
  margin-bottom: 14px;
  color: var(--accent-color);
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.setting-label-small {
  font-size: 14px;
}

.setting-row.is-disabled {
  opacity: 0.45;
}

.sub-settings#long-break-settings .setting-row {
  font-size: 14px;
}

.long-break-interval-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.long-break-interval-row .setting-row {
  margin-bottom: 0;
}

.long-break-interval-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.setting-readout {
  min-width: 8ch;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-main);
}

.auto-start-options {
  display: grid;
  gap: 18px;
  margin-top: 12px;
  justify-items: start;
}

.auto-start-options + .auto-start-options {
  margin-top: 18px;
}

.auto-start-option {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-main);
  cursor: pointer;
}

.auto-start-option input[type="checkbox"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(var(--ink-rgb), 0.7);
  border-radius: 4px;
  background: transparent;
  display: grid;
  place-items: center;
  margin: 0;
}

.auto-start-option input[type="checkbox"]::after {
  content: "";
  width: 6px;
  height: 10px;
  border-right: 2px solid var(--accent-color);
  border-bottom: 2px solid var(--accent-color);
  opacity: 0;
  transform: translateY(-2px) rotate(45deg);
}

.auto-start-option input[type="checkbox"]:checked {
  background: transparent;
  border-color: var(--accent-color);
}

.auto-start-option input[type="checkbox"]:checked::after {
  opacity: 1;
}

.auto-start-option input[type="checkbox"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--ink-rgb), 0.2);
}

#remaining-time-format {
  margin-top: 18px;
  margin-left: 30px;
  width: calc(100% - 30px);
}

.format-card {
  display: grid;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(var(--ink-rgb), 0.08);
  background: rgba(var(--ink-rgb), 0.04);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.format-title {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.format-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 12px;
}

.format-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-main);
  cursor: pointer;
}

.format-option input[type="radio"] {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(var(--ink-rgb), 0.6);
  border-radius: 999px;
  background: transparent;
  display: grid;
  place-items: center;
  margin: 0;
}

.format-option input[type="radio"]::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-color);
  opacity: 0;
}

.format-option input[type="radio"]:checked::after {
  opacity: 1;
}

.format-option input[type="radio"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--ink-rgb), 0.2);
}

.spinbox-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-main);
}

.time-setting-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.time-setting-row {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "icon label"
    "input input";
  align-items: center;
  gap: 4px 5px;
  padding: 0;
}

.time-setting-row.is-disabled {
  opacity: 0.45;
}

.time-setting-icon {
  grid-area: icon;
  font-size: 22px;
  color: var(--text-muted);
}

.time-setting-icon,
.time-setting-label {
  transform: translateX(4px);
}

.time-setting-label {
  grid-area: label;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-left: 4px;
}

.time-setting-input {
  grid-area: input;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(var(--ink-rgb), 0.04);
  border: 1px solid rgba(var(--ink-rgb), 0.12);
  border-radius: 14px;
  padding: 4px 12px;
  width: 100%;
}

.time-setting-input input[type="number"] {
  flex: 1;
  min-width: 0;
  width: auto;
  border: none;
  background: transparent;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
  padding: 0;
}

.time-setting-input input[type="number"]:focus {
  outline: none;
}

.time-setting-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

@media (max-width: 720px) and (min-width: 521px) {
  .time-setting-list {
    grid-template-columns: 1fr;
  }
}

.spinbox-card {
  --spinbox-accent: #f0645a;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  min-width: 0;
}

.spinbox-card.work {
  --spinbox-accent: #f0645a;
}

.spinbox-card.break {
  --spinbox-accent: #43c37c;
}

.spinbox-card.long {
  --spinbox-accent: #5aa4f0;
}

.spinbox-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 0 10px 12px;
  border-radius: 18px;
  background: rgba(var(--ink-rgb), 0.05);
  border: 1px solid rgba(var(--ink-rgb), 0.12);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.04);
  cursor: text;
}

.spinbox-card:focus-within .spinbox-pill {
  border-color: rgba(var(--ink-rgb), 0.35);
  box-shadow: 0 0 0 3px rgba(var(--ink-rgb), 0.12);
}

.spinbox-label {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: inherit;
  white-space: nowrap;
  display: block;
  width: 100%;
  text-align: center;
}

.spinbox-control {
  --spinbox-spinner: 28px;
  display: flex;
  align-items: center;
  width: 100%;
  font-variant-numeric: tabular-nums;
}

.spinbox-control input[type="number"] {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  padding: 0 calc(12px + var(--spinbox-spinner)) 0 12px;
}


.spinbox-control input[type="number"]:focus {
  outline: none;
}

.spinbox-control .unit {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.sub-settings {
  margin-top: 4px;
}

.sub-settings[data-visibility="always"] {
  transition: opacity 0.4s ease;
}

.sub-settings:not([data-visibility="always"]) {
  overflow: hidden;
  max-height: 600px;
  opacity: 1;
  transform: translateY(0);
  transition: max-height 0.5s ease, opacity 0.4s ease, transform 0.4s ease, margin-top 0.4s ease;
}

.sub-settings.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

.sub-settings.is-collapsed {
  max-height: 0;
  opacity: 0;
  transform: translateY(-8px);
  margin-top: 0;
  overflow: hidden;
  pointer-events: none;
}

.number-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  background: rgba(var(--ink-rgb), 0.05);
  padding: 2px 10px;
  height: 32px;
  border-radius: 10px;
  width: 120px;
  max-width: 100%;
  flex: 0 0 120px;
  white-space: nowrap;
}

.long-break-interval-control {
  width: 88px;
  flex: 0 0 30px;
}

.number-control.align-right {
  margin-left: auto;
}

.number-control.time-readout {
  justify-content: center;
  font-variant-numeric: tabular-nums;
}

.number-control.time-readout span {
  min-width: 8ch;
  text-align: center;
  display: inline-block;
}

.number-control input[type="number"] {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  text-align: center;
  padding: 0;
}

.number-control.match-spinbox input[type="number"],
.long-break-interval-control input[type="number"] {
  padding-left: 11px;
  padding-right: 0;
}

.number-control input[type="number"]:disabled {
  color: rgba(var(--ink-rgb), 0.6);
}

.number-control .unit {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.spinbox-card .number-control {
  margin: 0 auto;
  flex: 0 0 auto;
}

.adjust-btn {
  background: rgba(var(--ink-rgb), 0.1);
  border: none;
  color: var(--text-main);
  width: 26px;
  height: 26px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.adjust-btn:hover {
  background: var(--accent-color);
  color: black;
}

.adjust-btn:active {
  transform: scale(0.96);
}

.toggle-label {
  display: flex;
  justify-content: space-between;
  width: 100%;
  align-items: center;
  cursor: pointer;
}

input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-color);
  cursor: pointer;
}

.switch {
  position: relative;
  width: 46px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.switch input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.switch-ui {
  width: 46px;
  height: 26px;
  background: rgba(var(--ink-rgb), 0.1);
  border: 1px solid rgba(var(--ink-rgb), 0.2);
  border-radius: 999px;
  transition: background 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.switch-ui::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  transition: transform 0.16s ease;
}

.switch input:checked + .switch-ui {
  background: var(--accent-color);
  border-color: rgba(var(--ink-rgb), 0.35);
}

.switch input:checked + .switch-ui::after {
  transform: translateX(20px);
}

.switch input:focus-visible + .switch-ui {
  box-shadow: 0 0 0 3px rgba(var(--ink-rgb), 0.2);
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
  flex: 1 1 auto;
}

.volume-control input[type="range"] {
  width: 160px;
  max-width: 100%;
  flex: 1 1 140px;
  accent-color: var(--accent-color);
}

.volume-control input[type="range"]:disabled {
  opacity: 0.6;
  filter: grayscale(1);
}

#volume-val {
  width: 4ch;
  text-align: right;
  font-variant-numeric: tabular-nums;
}


.rainbow-text {
  background: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
  animation: rainbow 1s linear infinite;
  font-weight: bold;
}

@keyframes rainbow {
  0% {
    filter: hue-rotate(0deg);
  }

  100% {
    filter: hue-rotate(360deg);
  }
}

@media (max-width: 720px) {
  .settings-panel {
    width: min(90vw, 400px);
  }

  .settings-body {
    min-height: 0;
  }

  .settings-tabs {
    padding: 0;
  }

  .settings-tabs::before {
    top: -40px;
    left: -20px;
    width: 140px;
    height: 140px;
  }

  .settings-tab {
    flex: 1;
    justify-content: center;
    padding: 6px 8px;
  }

  .settings-tab:last-child {
    border-right: none;
  }

  .settings-tab .tab-label {
    font-size: 0.78rem;
  }
}

@media (max-width: 520px) {
  .settings-tab .tab-label {
    font-size: 0.74rem;
    letter-spacing: 0.01em;
  }

  .settings-tab {
    padding: 6px 6px;
    gap: 6px;
  }
}

@media (max-width: 640px) {
  .app-container {
    padding: 14px 16px;
  }

  body.page-pomodoro .app-container {
    padding-bottom: 0;
  }

  body.page-pomodoro .panel {
    padding: 18px 18px 20px;
  }

  body.page-pomodoro .panel-time {
    padding-bottom: 16px;
  }

  .panel-time .controls {
    margin-top: 22px;
  }

  .timer-card {
    min-height: 400px;
    --timer-card-pad: 10px;
    padding: var(--timer-card-pad);
    border-radius: var(--radius-lg);
    --ring-size: min(340px, calc(100% - 24px));
  }

  .timer-center {
    --time-size: clamp(52px, 10vw, 72px);
  }

  .panel-time .btn {
    min-width: 96px;
    font-size: 0.98rem;
  }

  .timer-card .stats-footer {
    gap: 12px;
  }

}

@media (max-width: 520px) {
  body.page-pomodoro .timer-card {
    min-height: 0;
    --timer-card-pad: 12px;
    padding: 12px 12px 10px;
    row-gap: 14px;
    grid-template-rows: auto auto;
    align-items: start;
    align-content: start;
    --ring-size: clamp(280px, 78vw, 320px);
  }

  body.page-pomodoro .timer-card .stats-footer {
    margin-top: -24px;
    padding-inline: 16px;
  }
}