:root {
  color-scheme: dark;
  --bg-1: #0f1115;
  --bg-2: #161a22;
  --bg-3: #1f2430;
  --panel: rgba(25, 29, 36, 0.85);
  --panel-strong: rgba(32, 38, 47, 0.95);
  --ink: #f5f5f5;
  --muted: #b2b5bd;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #f5f5f5;
  --danger: #ff5c5c;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --transition: 180ms ease;
  --dock-inset: 4vw;
  --dock-gap: 12px;
  --dock-height: clamp(164px, 23vh, 196px);
  --main-button-width: clamp(164px, 18vw, 250px);
  --main-button-height: var(--dock-height);
  --main-actions-width: var(--main-button-width);
  --profiles-width: clamp(150px, 20vw, 220px);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family:
    "Hiragino Kaku Gothic ProN", "Yu Gothic Medium", "Noto Sans JP", sans-serif;
  background: var(--bg-1);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
  touch-action: manipulation;
}

body {
  display: block;
}

.app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, #202634 0%, var(--bg-1) 50%) no-repeat,
    radial-gradient(circle at 80% 80%, #1c212b 0%, var(--bg-1) 60%) no-repeat;
}

.app::before {
  content: "";
  position: absolute;
  inset: -20%;
  background-image:
    linear-gradient(120deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0)),
    linear-gradient(45deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
  transform: rotate(-2deg);
  pointer-events: none;
}

.notice-stack {
  position: absolute;
  top: 2vh;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  gap: 8px;
  z-index: 3;
  pointer-events: none;
}

.notice-bar {
  min-height: 28px;
  max-width: min(86vw, 520px);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(-8px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.notice-bar.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.notice-bar[data-tone="warn"] {
  color: #ffe1b0;
  border-color: rgba(255, 179, 98, 0.5);
  background: rgba(255, 170, 80, 0.16);
}

.sleep-notice {
  position: absolute;
  right: 3vw;
  bottom: 3vh;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity var(--transition),
    transform var(--transition);
  pointer-events: none;
  z-index: 2;
}

.sleep-notice-title,
.sleep-notice-sub {
  display: block;
  line-height: 1.35;
}

.sleep-notice-sub {
  letter-spacing: 0.06em;
  opacity: 0.8;
}

.sleep-notice.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.current-datetime {
  position: absolute;
  top: calc(3vh + 8px);
  right: 4vw;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: clamp(12px, 1.6vw, 18px);
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}

.screen-title {
  position: absolute;
  top: calc(3vh - 14px);
  right: 4vw;
  max-width: min(62vw, 640px);
  font-size: clamp(12px, 1.6vw, 18px);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.current-date {
  font-size: clamp(11px, 1.4vw, 16px);
  letter-spacing: 0.08em;
}

.current-time {
  font-size: clamp(11px, 1.4vw, 16px);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

.timer-display {
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(100px, 25vw, 360px);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 24px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: color var(--transition);
}

.timer-display.overdue {
  color: var(--danger);
}

.display-hint {
  position: absolute;
  top: calc(50% + clamp(70px, 12vw, 120px));
  left: 50%;
  transform: translateX(-50%);
  font-size: clamp(12px, 1.3vw, 16px);
  color: var(--muted);
  letter-spacing: 0.08em;
}

.controls {
  position: absolute;
  left: calc(var(--dock-inset) + var(--main-actions-width) + var(--dock-gap));
  bottom: 4vh;
  width: min(
    520px,
    calc(
      100vw - (var(--dock-inset) * 2) - var(--main-actions-width) - var(--profiles-width) -
        (var(--dock-gap) * 2)
    )
  );
  height: var(--dock-height);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  grid-template-rows: repeat(3, minmax(0, 1fr));
  grid-template-areas:
    "mode sub"
    "sound sound"
    "adjust presets";
  gap: 8px 12px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition:
    transform var(--transition),
    opacity var(--transition);
  transform-origin: bottom left;
}

.profiles-panel {
  position: absolute;
  left: calc(
    var(--dock-inset) + var(--main-actions-width) + var(--dock-gap) + min(
        520px,
        calc(
          100vw - (var(--dock-inset) * 2) - var(--main-actions-width) - var(--profiles-width) -
            (var(--dock-gap) * 2)
        )
      ) + var(--dock-gap)
  );
  bottom: 4vh;
  width: var(--profiles-width);
  height: var(--dock-height);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  padding: 12px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition:
    transform var(--transition),
    opacity var(--transition);
  transform-origin: bottom left;
}

.profiles-title {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.profiles-buttons {
  min-height: 0;
  display: grid;
  grid-template-rows: repeat(3, minmax(0, 1fr));
  gap: 8px;
  overflow: hidden;
}

.profile-btn {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  min-width: 0;
  text-align: left;
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 12px;
  letter-spacing: 0.04em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.profile-btn.is-active {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.32);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.mode-row {
  grid-area: mode;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 0;
}

.mode-label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.toggle {
  position: relative;
  width: 92px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}

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

.toggle-track {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, #202531, #141821);
}

.toggle-knob {
  position: absolute;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: #f0f0f0;
  transform: translateX(-20px);
  transition: transform var(--transition);
}

.toggle-text {
  position: absolute;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
}

.toggle-text-left {
  left: 12px;
}

.toggle-text-right {
  right: 12px;
}

.toggle input:checked ~ .toggle-knob {
  transform: translateX(20px);
}

.toggle input:disabled ~ .toggle-track,
.toggle input:disabled ~ .toggle-knob {
  opacity: 0.45;
}

.btn {
  border: none;
  border-radius: 14px;
  font-size: 15px;
  padding: 10px 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    transform var(--transition),
    opacity var(--transition);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.controls .btn {
  width: 100%;
}

.main-actions {
  position: absolute;
  left: var(--dock-inset);
  bottom: 4vh;
  width: var(--main-actions-width);
  height: var(--main-button-height);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  z-index: 2;
  transition:
    transform var(--transition),
    opacity var(--transition);
  transform-origin: bottom left;
}

#mainButton,
.pause-resume-buttons {
  width: 100%;
  height: var(--main-button-height);
}

#mainButton {
  grid-column: 1;
  padding: 0 18px;
  border-radius: 24px;
  font-size: clamp(28px, 3.2vw, 44px);
  letter-spacing: 0.12em;
  line-height: 1;
  white-space: nowrap;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
}

.pause-resume-buttons {
  display: grid;
  grid-column: 1;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

#stopButton,
#resumeButton {
  border-radius: 18px;
  font-size: clamp(20px, 2.3vw, 30px);
  letter-spacing: 0.08em;
  line-height: 1;
}

.app[data-state="ready"] #mainButton {
  display: block;
}

.app[data-state="ready"] #pauseResumeButtons {
  display: none;
}

.app[data-state="running"] #mainButton {
  display: none;
}

.app[data-state="running"] #pauseResumeButtons {
  display: grid;
  grid-column: 1;
}

.app[data-state="stopped"] #mainButton {
  display: none;
}

.app[data-state="stopped"] #pauseResumeButtons {
  display: grid;
  grid-column: 1;
}

#subButton {
  grid-area: sub;
  height: 100%;
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn.primary {
  background: #f5f5f5;
  color: #111;
}

.btn.secondary {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  border: 1px solid var(--border);
  overflow: hidden;
}

.long-press-button {
  position: relative;
  overflow: hidden;
  --hold-overlay-start: rgba(255, 255, 255, 0.35);
  --hold-overlay-end: rgba(255, 255, 255, 0.05);
}

.btn.primary.long-press-button {
  --hold-overlay-start: rgba(15, 17, 21, 0.5);
  --hold-overlay-end: rgba(15, 17, 21, 0.22);
}

.long-press-button.holding::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--hold-overlay-start), var(--hold-overlay-end));
  animation: hold-fill 3s linear forwards;
}

@keyframes hold-fill {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0%);
  }
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
  border: 1px solid var(--border);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.sound-times {
  grid-area: sound;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  align-items: center;
}

.sound-state {
  min-width: 0;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.07);
  padding: 6px 8px;
  font-size: 11px;
  color: var(--ink);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}

.sound-state[data-empty="true"] {
  color: var(--muted);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

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

.adjust {
  grid-area: adjust;
}

.adjust-presets {
  grid-area: presets;
  margin-top: 8px;
}

.controls .adjust-presets {
  margin-top: 0;
}

.adjust-presets .btn {
  white-space: nowrap;
}

.app[data-mode="countup"] .adjust,
.app[data-mode="countup"] .adjust-presets {
  opacity: 0.35;
  pointer-events: none;
}

.app[data-state="running"] .adjust-presets {
  opacity: 0.35;
  pointer-events: none;
}

.app[data-state="running"] .profiles-panel {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.92);
}

.app[data-state="stopped"] .profiles-panel {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.92);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 12px;
  overflow-y: auto;
  z-index: 10;
}

.modal.is-open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-card {
  position: relative;
  background: var(--panel-strong);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 24px;
  width: min(420px, 88vw);
  max-height: calc(100dvh - 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow);
  z-index: 2;
}

.modal-card h2 {
  margin: 0 0 16px;
  font-size: 20px;
  letter-spacing: 0.08em;
}

.settings-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.tab-btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    transform var(--transition),
    opacity var(--transition),
    color var(--transition),
    border-color var(--transition);
}

.tab-btn.is-active {
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.45);
}

.tab-btn:active {
  transform: translateY(1px) scale(0.99);
}

.tab-panel {
  display: none;
}

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

.field {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.field.hint {
  margin-top: -6px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.field-row {
  display: grid;
  gap: 10px;
}

.sound-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 8px;
}

.sound-test-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.settings-inline-notice {
  position: static;
  max-width: 100%;
  margin-bottom: 8px;
}

.pwa-install {
  display: none;
  justify-content: center;
  margin-bottom: 8px;
}

.pwa-install.is-visible {
  display: flex;
}

select,
input[type="number"],
input[type="text"] {
  background: rgba(0, 0, 0, 0.3);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 16px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.settings-footer {
  margin-top: 10px;
  text-align: right;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.settings-version {
  margin-top: 4px;
  text-align: right;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.dock-button {
  position: absolute;
  left: 4vw;
  bottom: 4vh;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px) scale(0.92);
  transition:
    transform var(--transition),
    opacity var(--transition);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.app[data-controls="collapsed"] .controls,
.app[data-controls="collapsed"] .profiles-panel,
.app[data-controls="collapsed"] .main-actions {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.92);
}

.app[data-controls="collapsed"] .dock-button {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.timer-display.holding {
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
}

@media (max-width: 900px) {
  .app {
    --dock-inset: 4vw;
    --dock-gap: 10px;
    --dock-height: clamp(146px, 24vh, 184px);
    --main-button-width: clamp(148px, 34vw, 200px);
    --main-button-height: clamp(90px, 10vh, 112px);
  }

  .timer-display {
    top: 42%;
  }

  .main-actions {
    top: clamp(82px, 13vh, 132px);
    left: var(--dock-inset);
    bottom: auto;
    width: var(--main-actions-width);
    height: var(--main-button-height);
  }

  #mainButton,
  .pause-resume-buttons {
    width: 100%;
    height: var(--main-button-height);
  }

  #mainButton {
    font-size: clamp(24px, 5.2vw, 36px);
  }

  .controls {
    left: var(--dock-inset);
    bottom: 4vh;
    width: min(520px, 86vw);
    height: var(--dock-height);
    padding: 16px;
  }

  .profiles-panel {
    left: var(--dock-inset);
    bottom: calc(4vh + var(--dock-height) + var(--dock-gap));
    width: min(520px, 86vw);
    height: auto;
    min-height: 68px;
    display: flex;
    align-items: center;
  }

  .profiles-buttons {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: 1fr;
  }

  .profile-btn {
    min-width: 0;
    text-align: center;
  }

  .btn {
    font-size: 14px;
    padding: 10px 14px;
  }
}

@media (max-width: 640px) {
  .app {
    --dock-inset: 3vw;
    --main-button-width: clamp(136px, 38vw, 178px);
    --main-button-height: clamp(84px, 10vh, 100px);
  }

  .screen-title {
    top: calc(3vh - 10px);
    max-width: 72vw;
    font-size: clamp(12px, 1.6vw, 18px);
  }

  .main-actions {
    top: clamp(74px, 12vh, 116px);
    width: var(--main-actions-width);
    height: var(--main-button-height);
  }

  #mainButton,
  .pause-resume-buttons {
    width: 100%;
    height: var(--main-button-height);
  }

  #mainButton {
    font-size: clamp(22px, 6vw, 32px);
    letter-spacing: 0.1em;
  }

  .timer-display {
    top: 39%;
    font-size: clamp(84px, 24vw, 160px);
  }

  .controls {
    width: min(360px, 92vw);
    left: var(--dock-inset);
  }

  .profiles-panel {
    left: var(--dock-inset);
    bottom: calc(4vh + var(--dock-height) + var(--dock-gap));
    width: min(360px, 92vw);
  }

  .dock-button {
    left: var(--dock-inset);
    width: 50px;
    height: 50px;
    font-size: 10px;
  }

  .display-hint {
    top: calc(50% + clamp(64px, 16vw, 120px));
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .app {
    --dock-inset: 3vw;
    --dock-gap: 10px;
    --dock-height: clamp(108px, 30vh, 150px);
    --main-button-width: clamp(112px, 17vw, 160px);
    --main-button-height: var(--dock-height);
    --profiles-width: clamp(132px, 18vw, 168px);
  }

  .modal {
    align-items: flex-start;
  }

  .modal-card {
    width: min(560px, 94vw);
    max-height: calc(100dvh - 24px);
    padding: 18px;
  }

  .controls {
    left: calc(var(--dock-inset) + var(--main-actions-width) + var(--dock-gap));
    bottom: 4vh;
    width: calc(
      100vw - (var(--dock-inset) * 2) - var(--main-actions-width) - var(--profiles-width) -
        (var(--dock-gap) * 2)
    );
    height: var(--dock-height);
  }

  .profiles-panel {
    left: calc(
      var(--dock-inset) + var(--main-actions-width) + var(--dock-gap) +
        calc(
          100vw - (var(--dock-inset) * 2) - var(--main-actions-width) - var(--profiles-width) -
            (var(--dock-gap) * 2)
        ) + var(--dock-gap)
    );
    bottom: 4vh;
    width: var(--profiles-width);
    height: var(--dock-height);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    align-items: stretch;
  }

  .main-actions {
    top: auto;
    left: var(--dock-inset);
    bottom: 4vh;
    width: var(--main-actions-width);
    height: var(--main-button-height);
  }

  #mainButton,
  .pause-resume-buttons {
    width: 100%;
    height: var(--main-button-height);
  }

  #mainButton {
    font-size: clamp(20px, 2.6vw, 28px);
  }

  .profiles-buttons {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, minmax(0, 1fr));
  }

  .profile-btn {
    text-align: left;
  }
}