:root {
  --ink: #16211f;
  --muted: #61716d;
  --paper: #fbfaf5;
  --panel: #ffffff;
  --line: #d9e0d8;
  --mint: #2f8f75;
  --mint-dark: #17624f;
  --sky: #6eb7d8;
  --coral: #ef735d;
  --gold: #f5be4f;
  --violet: #7867d6;
  --shadow: 0 22px 60px rgba(32, 45, 42, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 10%, rgba(245, 190, 79, 0.25), transparent 24rem),
    radial-gradient(circle at 88% 18%, rgba(110, 183, 216, 0.22), transparent 26rem),
    linear-gradient(135deg, #f6f1e7 0%, #eef5ee 46%, #f8f5ef 100%);
}

body.focus-mode {
  overflow: hidden;
}

body[data-theme="arcade"] {
  background:
    radial-gradient(circle at 15% 15%, rgba(255, 216, 90, 0.28), transparent 24rem),
    radial-gradient(circle at 85% 16%, rgba(120, 103, 214, 0.24), transparent 26rem),
    linear-gradient(135deg, #f8f7ff 0%, #eef7f8 54%, #fff3ea 100%);
}

body[data-theme="midnight"] {
  --ink: #edf7f3;
  --muted: #a9bbb6;
  --line: rgba(255, 255, 255, 0.14);
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.34);
  background:
    radial-gradient(circle at 18% 12%, rgba(110, 183, 216, 0.22), transparent 22rem),
    radial-gradient(circle at 82% 18%, rgba(120, 103, 214, 0.24), transparent 25rem),
    linear-gradient(135deg, #111817 0%, #141b2c 52%, #0f1119 100%);
}

body[data-theme="sunset"] {
  background:
    radial-gradient(circle at 18% 12%, rgba(245, 190, 79, 0.34), transparent 24rem),
    radial-gradient(circle at 84% 18%, rgba(239, 115, 93, 0.25), transparent 28rem),
    linear-gradient(135deg, #fff4de 0%, #f7ece6 48%, #edf6ef 100%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 32px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: stretch;
}

.timer-stage,
.side-panel {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

body[data-theme="midnight"] .timer-stage,
body[data-theme="midnight"] .side-panel {
  background: rgba(20, 29, 38, 0.78);
  border-color: rgba(255, 255, 255, 0.12);
}

.timer-stage {
  min-width: 0;
  border-radius: 28px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.side-panel {
  border-radius: 24px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.topbar,
.section-heading,
.setting-row,
.controls-row,
.mode-tabs,
.quick-grid,
.split-fields {
  display: flex;
  align-items: center;
}

.topbar {
  justify-content: space-between;
  gap: 18px;
}

.eyebrow,
.session-label,
.timer-note,
.section-heading span,
.setting-row span {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 4px;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 1rem;
}

.status-pill {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  background: #fffdf8;
  color: var(--mint-dark);
  font-weight: 800;
}

body[data-theme="midnight"] .status-pill,
body[data-theme="midnight"] .ghost-button,
body[data-theme="midnight"] .quick-grid button,
body[data-theme="midnight"] .task-form button,
body[data-theme="midnight"] .field input,
body[data-theme="midnight"] .task-form input,
body[data-theme="midnight"] textarea,
body[data-theme="midnight"] .tab-button.active {
  background: #263445;
  color: #f5fbff;
  border-color: #4b6075;
}

body[data-theme="midnight"] .primary-button {
  background: #6eb7d8;
  color: #081018;
  box-shadow: 0 10px 24px rgba(110, 183, 216, 0.2);
}

body[data-theme="midnight"] .mode-tabs {
  background: rgba(255, 255, 255, 0.1);
}

body[data-theme="midnight"] .tab-button {
  color: #d4e1dd;
}

body[data-theme="midnight"] .tab-button.active {
  background: #d7f2ff;
  color: #081018;
}

body[data-theme="midnight"] .field input,
body[data-theme="midnight"] .task-form input,
body[data-theme="midnight"] textarea {
  background: #101923;
  color: #f5fbff;
}

body[data-theme="midnight"] .field input::placeholder,
body[data-theme="midnight"] .task-form input::placeholder,
body[data-theme="midnight"] textarea::placeholder {
  color: #a9bbc6;
}

.timer-card {
  position: relative;
  overflow: hidden;
  min-height: 310px;
  border-radius: 22px;
  padding: 34px 28px;
  display: grid;
  align-content: center;
  gap: 18px;
  background:
    linear-gradient(120deg, rgba(22, 33, 31, 0.92), rgba(23, 98, 79, 0.86)),
    repeating-linear-gradient(90deg, transparent 0, transparent 22px, rgba(255, 255, 255, 0.06) 23px);
  color: white;
}

body[data-theme="arcade"] .timer-card {
  background:
    linear-gradient(135deg, rgba(30, 27, 75, 0.94), rgba(91, 55, 190, 0.88)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.07) 0 2px, transparent 2px 12px);
}

body[data-theme="midnight"] .timer-card {
  background:
    radial-gradient(circle at 78% 24%, rgba(110, 183, 216, 0.22), transparent 18rem),
    linear-gradient(135deg, #0a0f16 0%, #172331 52%, #10131d 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

body[data-theme="sunset"] .timer-card {
  background:
    linear-gradient(120deg, rgba(111, 56, 75, 0.93), rgba(222, 102, 77, 0.88)),
    repeating-linear-gradient(90deg, transparent 0, transparent 22px, rgba(255, 255, 255, 0.08) 23px);
}

.session-label {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.time-display {
  position: relative;
  z-index: 2;
  font-variant-numeric: tabular-nums;
  font-size: clamp(3.7rem, 11vw, 8.6rem);
  line-height: 0.9;
  font-weight: 900;
  letter-spacing: 0;
  text-wrap: nowrap;
}

.timer-note {
  position: relative;
  z-index: 2;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.progress-shell {
  position: relative;
  z-index: 2;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
}

.progress-bar {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--gold), var(--coral), var(--sky));
  transition: width 0.35s ease;
}

body[data-theme="arcade"] .progress-bar {
  background: linear-gradient(90deg, #f5be4f, #ff5aa5, #6eb7d8);
}

body[data-theme="midnight"] .progress-bar {
  background: linear-gradient(90deg, #6eb7d8, #7867d6, #f5be4f);
}

body[data-theme="sunset"] .progress-bar {
  background: linear-gradient(90deg, #f5be4f, #ef735d, #ffe0a3);
}

.controls-row {
  gap: 10px;
  flex-wrap: wrap;
}

.controls-row.compact {
  margin-top: 4px;
}

.primary-button,
.ghost-button,
.tab-button,
.quick-grid button,
.task-form button {
  min-height: 44px;
  border: 0;
  border-radius: 12px;
  padding: 0 18px;
  font-weight: 800;
}

.primary-button {
  min-width: 136px;
  background: var(--ink);
  color: white;
}

.ghost-button,
.quick-grid button,
.task-form button {
  border: 1px solid var(--line);
  background: #fffdf8;
  color: var(--ink);
}

.mode-tabs {
  padding: 5px;
  border-radius: 14px;
  background: #e9eee8;
}

.tab-button {
  flex: 1;
  color: var(--muted);
  background: transparent;
}

.tab-button.active {
  background: white;
  color: var(--ink);
  box-shadow: 0 8px 22px rgba(36, 49, 47, 0.1);
}

.mode-panel {
  display: none;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.56);
}

.mode-panel.active {
  display: block;
}

.field,
.range-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.field input,
.task-form input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fffdf8;
  color: var(--ink);
  outline: none;
}

.field input:focus,
.task-form input:focus,
textarea:focus {
  border-color: var(--mint);
  box-shadow: 0 0 0 4px rgba(47, 143, 117, 0.14);
}

.quick-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.split-fields {
  align-items: stretch;
  gap: 12px;
}

.split-fields .field {
  flex: 1;
}

.split-fields.three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tool-section {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.62);
}

body[data-theme="midnight"] .tool-section,
body[data-theme="midnight"] .mode-panel,
body[data-theme="midnight"] .task-list li {
  background: rgba(255, 255, 255, 0.06);
}

.section-heading {
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.task-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px;
  gap: 8px;
}

.task-form button {
  padding: 0;
  font-size: 1.3rem;
}

.task-list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
}

.task-list li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) 32px;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px;
  border-radius: 12px;
  background: #f7f4ed;
}

.task-list input {
  width: 18px;
  height: 18px;
}

.task-list .done {
  color: var(--muted);
  text-decoration: line-through;
}

.task-list button {
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-weight: 900;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.theme-button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fffdf8;
  color: var(--ink);
  font-weight: 800;
}

.theme-button.active {
  border-color: var(--mint);
  box-shadow: 0 0 0 4px rgba(47, 143, 117, 0.14);
}

.theme-swatch {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 1px rgba(22, 33, 31, 0.15);
}

.theme-swatch.forest {
  background: linear-gradient(135deg, #16211f, #2f8f75);
}

.theme-swatch.arcade {
  background: linear-gradient(135deg, #1e1b4b, #ff5aa5);
}

.theme-swatch.midnight {
  background: linear-gradient(135deg, #07111a, #6eb7d8);
}

.theme-swatch.sunset {
  background: linear-gradient(135deg, #6f384b, #f5be4f);
}

body[data-theme="midnight"] .theme-button {
  background: #263445;
  color: #f5fbff;
  border-color: #4b6075;
}

body[data-theme="midnight"] .theme-button.active {
  background: #d7f2ff;
  color: #081018;
  border-color: #8fd6f4;
}

.settings {
  display: grid;
  gap: 14px;
}

.setting-row {
  justify-content: space-between;
  gap: 14px;
}

.setting-row span {
  display: block;
  margin-top: 4px;
  font-size: 0.9rem;
  line-height: 1.35;
}

.switch {
  position: relative;
  flex: 0 0 auto;
  width: 54px;
  height: 32px;
}

.switch input {
  opacity: 0;
}

.switch span {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #c9d2cf;
  transition: background 0.2s ease;
}

.switch span::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  left: 4px;
  top: 4px;
  border-radius: 50%;
  background: white;
  transition: transform 0.2s ease;
}

.switch input:checked + span {
  background: var(--mint);
}

.switch input:checked + span::after {
  transform: translateX(22px);
}

.range-field input {
  accent-color: var(--mint);
}

.mascot-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.mascot {
  position: absolute;
  left: -90px;
  bottom: 60px;
  width: 66px;
  height: 66px;
  transform-origin: center bottom;
  animation: mascot-run 2.6s cubic-bezier(0.3, 0.02, 0.22, 1) forwards;
}

.asset-mascot {
  width: 88px;
  height: 88px;
  filter: drop-shadow(0 12px 12px rgba(0, 0, 0, 0.28));
}

.asset-mascot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: auto;
}

.mascot .body {
  position: absolute;
  inset: 10px 8px 6px;
  border-radius: 18px 18px 14px 14px;
  background: var(--mascot-main);
  box-shadow: inset -7px -8px rgba(0, 0, 0, 0.12);
}

.mascot .face {
  position: absolute;
  left: 17px;
  top: 24px;
  width: 24px;
  height: 10px;
  border-radius: 50%;
  border-top: 4px solid rgba(0, 0, 0, 0.72);
}

.mascot .ears::before,
.mascot .ears::after,
.mascot .feet::before,
.mascot .feet::after {
  content: "";
  position: absolute;
  background: var(--mascot-accent);
}

.mascot .ears::before,
.mascot .ears::after {
  top: 0;
  width: 15px;
  height: 28px;
  border-radius: 999px 999px 4px 4px;
}

.mascot .ears::before {
  left: 11px;
  transform: rotate(-23deg);
}

.mascot .ears::after {
  right: 11px;
  transform: rotate(23deg);
}

.mascot .feet::before,
.mascot .feet::after {
  bottom: 0;
  width: 20px;
  height: 10px;
  border-radius: 999px;
}

.mascot .feet::before {
  left: 7px;
}

.mascot .feet::after {
  right: 7px;
}

.mascot.star .body {
  clip-path: polygon(50% 0, 62% 30%, 95% 32%, 69% 52%, 80% 88%, 50% 68%, 20% 88%, 31% 52%, 5% 32%, 38% 30%);
}

.mascot.plumber .cap,
.mascot.runner .spike {
  position: absolute;
  background: var(--mascot-accent);
}

.mascot.plumber .cap {
  left: 9px;
  top: 7px;
  width: 40px;
  height: 17px;
  border-radius: 18px 18px 8px 8px;
}

.mascot.runner .spike {
  width: 22px;
  height: 22px;
  right: 3px;
  top: 14px;
  transform: rotate(45deg);
  border-radius: 4px;
}

@keyframes mascot-run {
  0% {
    transform: translateX(0) translateY(0) rotate(-7deg) scale(0.8);
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  42% {
    transform: translateX(calc(45vw + 80px)) translateY(-98px) rotate(11deg) scale(1.05);
  }
  72% {
    transform: translateX(calc(70vw + 120px)) translateY(-18px) rotate(-8deg) scale(1);
  }
  100% {
    transform: translateX(calc(100vw + 180px)) translateY(0) rotate(7deg) scale(0.86);
    opacity: 0;
  }
}

.timer-stage:fullscreen {
  width: 100vw;
  height: 100vh;
  padding: clamp(18px, 4vw, 56px);
  border-radius: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background:
    radial-gradient(circle at 16% 12%, rgba(245, 190, 79, 0.2), transparent 28rem),
    radial-gradient(circle at 84% 14%, rgba(110, 183, 216, 0.22), transparent 30rem),
    rgba(255, 255, 255, 0.94);
}

.focus-mode-stage {
  position: fixed;
  inset: 0;
  z-index: 50;
  width: 100vw;
  height: 100vh;
  padding: clamp(18px, 4vw, 56px);
  border-radius: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background:
    radial-gradient(circle at 16% 12%, rgba(245, 190, 79, 0.2), transparent 28rem),
    radial-gradient(circle at 84% 14%, rgba(110, 183, 216, 0.22), transparent 30rem),
    rgba(255, 255, 255, 0.96);
}

body[data-theme="midnight"] .focus-mode-stage {
  background:
    radial-gradient(circle at 20% 16%, rgba(110, 183, 216, 0.2), transparent 28rem),
    linear-gradient(135deg, #0a0f16 0%, #141b2c 100%);
}

.focus-mode-stage .mode-tabs,
.focus-mode-stage .mode-panel {
  display: none;
}

.focus-mode-stage .timer-card {
  min-height: 0;
  height: 100%;
  align-content: center;
}

.focus-mode-stage .time-display {
  font-size: clamp(4.6rem, 16vw, 14rem);
}

body[data-theme="midnight"] .timer-stage:fullscreen {
  background:
    radial-gradient(circle at 20% 16%, rgba(110, 183, 216, 0.2), transparent 28rem),
    linear-gradient(135deg, #0a0f16 0%, #141b2c 100%);
}

.timer-stage:fullscreen .mode-tabs,
.timer-stage:fullscreen .mode-panel {
  display: none;
}

.timer-stage:fullscreen .timer-card {
  min-height: 0;
  height: 100%;
  align-content: center;
}

.timer-stage:fullscreen .time-display {
  font-size: clamp(4.6rem, 16vw, 14rem);
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .side-panel {
    order: 2;
  }
}

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 18px, 1180px);
    padding: 9px 0;
    gap: 12px;
  }

  .timer-stage,
  .side-panel {
    border-radius: 18px;
    padding: 16px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .time-display {
    font-size: clamp(2.9rem, 16vw, 4.4rem);
  }

  .timer-card {
    min-height: 260px;
    padding: 24px 18px;
  }

  .mode-tabs {
    display: grid;
    grid-template-columns: 1fr;
  }

  .quick-grid,
  .split-fields,
  .split-fields.three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    display: grid;
  }

  .primary-button,
  .ghost-button {
    flex: 1 1 130px;
  }
}