/* Nagi（凪）— 集中タイマー。Material 3 のデザイン（色・形・部品は M3 のトークンと部品の決まりに合わせて CSS で作る）
   色: 凪の青緑（#0f766e）から作ったトーンの組み合わせ。休憩中は tertiary（空の青）を primary の代わりに使う
   ダークモードはサイトの「表示」で選んだものに合わせる（なければ端末の設定） */
:root {
  --primary: #006a60; --on-primary: #ffffff; --primary-container: #9ef2e4; --on-primary-container: #00201c;
  --secondary: #4a635f; --on-secondary: #ffffff; --secondary-container: #cce8e2; --on-secondary-container: #05201c;
  --tertiary: #3b5f90; --on-tertiary: #ffffff; --tertiary-container: #d4e3ff; --on-tertiary-container: #001c3a;
  --error: #ba1a1a; --on-error: #ffffff; --error-container: #ffdad6; --on-error-container: #410002;
  --surface: #f4fbf8; --surface-dim: #d5dbd9;
  --surface-container-lowest: #ffffff; --surface-container-low: #eef5f2; --surface-container: #e9efec;
  --surface-container-high: #e3eae7; --surface-container-highest: #dde4e1;
  --on-surface: #161d1b; --on-surface-variant: #3f4946; --outline: #6f7976; --outline-variant: #bec9c5;
  --inverse-surface: #2b3230; --inverse-on-surface: #ecf2ef; --inverse-primary: #82d5c8;
  --shadow: rgba(0, 0, 0, .15);
  --font: "M PLUS 1", "Noto Sans JP", "Noto Sans CJK JP", "Hiragino Sans", "Yu Gothic UI", Meiryo, system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease: cubic-bezier(.2, 0, 0, 1);            /* M3 の標準の動き */
  --ease-emph: cubic-bezier(.05, .7, .1, 1);    /* M3 の強調の動き */
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary: #82d5c8; --on-primary: #003731; --primary-container: #005048; --on-primary-container: #9ef2e4;
    --secondary: #b1ccc6; --on-secondary: #1c3531; --secondary-container: #334b47; --on-secondary-container: #cce8e2;
    --tertiary: #a5c8ff; --on-tertiary: #03305f; --tertiary-container: #214777; --on-tertiary-container: #d4e3ff;
    --error: #ffb4ab; --on-error: #690005; --error-container: #93000a; --on-error-container: #ffdad6;
    --surface: #0e1513; --surface-dim: #0e1513;
    --surface-container-lowest: #090f0e; --surface-container-low: #161d1b; --surface-container: #1a211f;
    --surface-container-high: #252b2a; --surface-container-highest: #2f3634;
    --on-surface: #dde4e1; --on-surface-variant: #bec9c5; --outline: #899390; --outline-variant: #3f4946;
    --inverse-surface: #dde4e1; --inverse-on-surface: #2b3230; --inverse-primary: #006a60;
    --shadow: rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --primary: #82d5c8; --on-primary: #003731; --primary-container: #005048; --on-primary-container: #9ef2e4;
  --secondary: #b1ccc6; --on-secondary: #1c3531; --secondary-container: #334b47; --on-secondary-container: #cce8e2;
  --tertiary: #a5c8ff; --on-tertiary: #03305f; --tertiary-container: #214777; --on-tertiary-container: #d4e3ff;
  --error: #ffb4ab; --on-error: #690005; --error-container: #93000a; --on-error-container: #ffdad6;
  --surface: #0e1513; --surface-dim: #0e1513;
  --surface-container-lowest: #090f0e; --surface-container-low: #161d1b; --surface-container: #1a211f;
  --surface-container-high: #252b2a; --surface-container-highest: #2f3634;
  --on-surface: #dde4e1; --on-surface-variant: #bec9c5; --outline: #899390; --outline-variant: #3f4946;
  --inverse-surface: #dde4e1; --inverse-on-surface: #2b3230; --inverse-primary: #006a60;
  --shadow: rgba(0, 0, 0, .5);
  color-scheme: dark;
}
/* 休憩中: 空の色（tertiary）を主役にする */
body.is-break {
  --primary: var(--tertiary); --on-primary: var(--on-tertiary);
  --primary-container: var(--tertiary-container); --on-primary-container: var(--on-tertiary-container);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; min-height: 100dvh;
  font-family: var(--font); color: var(--on-surface); background: var(--surface);
  line-height: 1.5; -webkit-font-smoothing: antialiased;
  transition: background-color .5s var(--ease), color .5s var(--ease);
}
button, input { font: inherit; color: inherit; }
a { color: var(--primary); }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

/* Material Symbols（アイコン。読み込む前は文字が見えないように） */
.ms {
  font-family: "Material Symbols Rounded"; font-weight: normal; font-style: normal; font-size: 24px; line-height: 1;
  letter-spacing: normal; text-transform: none; display: inline-block; white-space: nowrap; direction: ltr;
  -webkit-font-feature-settings: "liga"; font-feature-settings: "liga"; -webkit-font-smoothing: antialiased;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  width: 1em; height: 1em; overflow: hidden; user-select: none; flex: none;
}

/* 押したときなどの薄い重ね（M3 のステートレイヤー） */
.state { position: relative; overflow: hidden; }
.icon-btn, .tonal-icon-btn, .fab, .segmented button, .filled-btn, .text-btn, .outlined-btn, .chip, .list-item { position: relative; overflow: hidden; -webkit-tap-highlight-color: transparent; }
.icon-btn::after, .tonal-icon-btn::after, .fab::after, .segmented button::after, .filled-btn::after, .text-btn::after, .outlined-btn::after, .list-item::after {
  content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .15s linear; pointer-events: none; border-radius: inherit;
}
.icon-btn:hover::after, .tonal-icon-btn:hover::after, .fab:hover::after, .segmented button:hover::after, .filled-btn:hover::after, .text-btn:hover::after, .outlined-btn:hover::after, .list-item:hover::after { opacity: .08; }
.icon-btn:active::after, .tonal-icon-btn:active::after, .fab:active::after, .segmented button:active::after, .filled-btn:active::after, .text-btn:active::after, .outlined-btn:active::after, .list-item:active::after { opacity: .12; }

/* ---------- 背景の静かな波 ---------- */
.waves { position: fixed; left: 0; right: 0; bottom: 0; width: 100%; height: 34vh; z-index: -1; pointer-events: none; }
.wave { transition: fill .6s var(--ease); }
.wave-1 { fill: color-mix(in srgb, var(--primary-container) 55%, transparent); }
.wave-2 { fill: color-mix(in srgb, var(--primary-container) 85%, transparent); }
body.is-running .wave-1 { animation: drift 14s ease-in-out infinite alternate; }
body.is-running .wave-2 { animation: drift 10s ease-in-out infinite alternate-reverse; }
@keyframes drift { to { transform: translateX(-3%); } }

/* ---------- 上の帯（M3 の小さなトップアプリバー） ---------- */
.top-bar { display: flex; align-items: center; justify-content: space-between; height: 64px; padding: env(safe-area-inset-top) 8px 0 16px; max-width: 720px; margin: 0 auto; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--on-surface); text-decoration: none; font-size: 22px; font-weight: 500; letter-spacing: 0; }
.brand img { border-radius: 9px; }
.top-actions { display: flex; }
.icon-btn { width: 48px; height: 48px; display: grid; place-items: center; border: 0; border-radius: 50%; background: transparent; color: var(--on-surface-variant); cursor: pointer; }
#sync-button.is-syncing .ms { animation: spin 1s linear infinite; }
#sync-button.is-ok { color: var(--primary); }
#sync-button.is-error { color: var(--error); }
@keyframes spin { to { transform: rotate(-360deg); } }

.page { display: flex; flex-direction: column; align-items: center; max-width: 720px; margin: 0 auto; padding: 8px 16px calc(40px + env(safe-area-inset-bottom)); }

/* ---------- 区切りボタン（M3 の Segmented button） ---------- */
.segmented { display: inline-flex; border: 1px solid var(--outline); border-radius: 999px; overflow: hidden; }
.segmented button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; min-width: 96px; padding: 0 16px; border: 0; background: transparent; color: var(--on-surface); font-size: 14px; font-weight: 500; letter-spacing: .1px; cursor: pointer; border-radius: 0; transition: background-color .3s var(--ease), color .3s var(--ease); }
.segmented button + button { border-left: 1px solid var(--outline); }
.segmented button[aria-selected="true"] { background: var(--secondary-container); color: var(--on-secondary-container); }
.segmented .check { font-size: 18px; width: 0; transition: width .3s var(--ease-emph), opacity .2s var(--ease); opacity: 0; }
.segmented button[aria-selected="true"] .check { width: 18px; opacity: 1; }
@media (max-width: 380px) { .segmented button { min-width: 0; padding: 0 12px; } }

/* ---------- タイマー（M3 の丸い進み具合: 太い線・丸い端） ---------- */
.timer { position: relative; width: min(84vw, 340px); aspect-ratio: 1; margin-top: 28px; }
.ring { width: 100%; height: 100%; transform: rotate(-90deg); overflow: visible; }
.ring circle { fill: none; stroke-width: 12; }
.ring-track { stroke: var(--secondary-container); transition: stroke .5s var(--ease); }
.ring-progress { stroke: var(--primary); stroke-linecap: round; stroke-dasharray: 678.58; stroke-dashoffset: 0; transition: stroke-dashoffset .35s linear, stroke .5s var(--ease); }
.timer-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 0 16%; }
.mode-chip { display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 14px 0 10px; border-radius: 8px; background: var(--primary-container); color: var(--on-primary-container); font-size: 14px; font-weight: 500; transition: background-color .5s var(--ease), color .5s var(--ease); }
.mode-chip .ms { font-size: 18px; }
.time { font-size: clamp(60px, 18vw, 88px); font-weight: 400; letter-spacing: -1px; line-height: 1.05; font-variant-numeric: tabular-nums; }
.status { font-size: 14px; color: var(--on-surface-variant); letter-spacing: .25px; }
body.is-running .time { animation: breathe 5s ease-in-out infinite; }
@keyframes breathe { 50% { opacity: .78; } }
.round { margin-top: 10px; font-size: 13px; color: var(--on-surface-variant); letter-spacing: .4px; font-variant-numeric: tabular-nums; }

/* ---------- 操作（M3 の大きな FAB と、トーンのアイコンボタン） ---------- */
.controls { display: flex; align-items: center; gap: 20px; margin-top: 22px; }
.tonal-icon-btn { width: 56px; height: 56px; display: grid; place-items: center; border: 0; border-radius: 50%; background: var(--secondary-container); color: var(--on-secondary-container); cursor: pointer; transition: border-radius .35s var(--ease-emph), background-color .5s var(--ease); }
.tonal-icon-btn:active { border-radius: 16px; }
.fab {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px; height: 96px; min-width: 176px; padding: 0 32px;
  border: 0; border-radius: 28px; background: var(--primary-container); color: var(--on-primary-container);
  font-size: 20px; font-weight: 500; letter-spacing: 0; cursor: pointer;
  box-shadow: 0 3px 6px var(--shadow), 0 1px 3px color-mix(in srgb, var(--shadow) 60%, transparent);
  transition: border-radius .45s var(--ease-emph), background-color .5s var(--ease), color .5s var(--ease), box-shadow .2s var(--ease), min-width .45s var(--ease-emph);
}
.fab .ms { font-size: 36px; font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 40; }
.fab:hover { box-shadow: 0 6px 12px var(--shadow), 0 2px 4px color-mix(in srgb, var(--shadow) 60%, transparent); }
/* 動いているあいだは、角の丸みが変わって丸い形に（M3 の形の変化） */
body.is-running .fab { border-radius: 48px; }

/* ---------- カード（M3 の Filled card） ---------- */
.cards { display: grid; grid-template-columns: 1fr; gap: 12px; width: 100%; margin-top: 36px; }
@media (min-width: 680px) { .cards { grid-template-columns: 1fr 1fr; } }
.card { padding: 20px; border-radius: 16px; background: var(--surface-container-highest); color: var(--on-surface); transition: background-color .5s var(--ease); }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.overline { font-size: 12px; font-weight: 500; letter-spacing: .5px; color: var(--on-surface-variant); }
.today-value { margin-top: 2px; color: var(--on-surface-variant); font-size: 16px; }
.today-value strong { font-size: 32px; font-weight: 400; color: var(--on-surface); font-variant-numeric: tabular-nums; }
.support { margin: 10px 0 0; font-size: 14px; color: var(--on-surface-variant); letter-spacing: .25px; }
.support.small { font-size: 12px; margin-top: 16px; }
.today.is-done .support { color: var(--primary); font-weight: 500; }
/* M3 の Assist chip */
.chip { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 16px 0 8px; border-radius: 8px; border: 1px solid var(--outline-variant); color: var(--on-surface); font-size: 14px; font-weight: 500; white-space: nowrap; transition: background-color .4s var(--ease), border-color .4s var(--ease); }
.chip .ms { font-size: 18px; color: var(--primary); }
.chip:not(.is-zero) { background: var(--secondary-container); border-color: transparent; color: var(--on-secondary-container); }
/* M3 の線の進み具合（進んだ部分・すき間・残り・終わりの点） */
.linear { position: relative; display: flex; align-items: center; gap: 4px; height: 8px; margin-top: 18px; }
.linear-active { height: 100%; width: 0; min-width: 0; border-radius: 999px; background: var(--primary); transition: width .7s var(--ease-emph), background-color .5s var(--ease); }
.linear-track { height: 100%; flex: 1; border-radius: 999px; background: var(--secondary-container); transition: background-color .5s var(--ease); }
.linear-stop { position: absolute; right: 2px; width: 4px; height: 4px; border-radius: 50%; background: var(--primary); }
.today.is-done .linear-track, .today.is-done .linear-stop { display: none; }
.today.is-done .linear-active { width: 100% !important; }

.week-chart { position: relative; display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; align-items: end; height: 140px; margin-top: 16px; }
.week-goal { position: absolute; left: 0; right: 0; border-top: 1px dashed var(--outline); pointer-events: none; }
.week-day { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 6px; height: 100%; }
.week-bar { width: 100%; max-width: 28px; min-height: 6px; border-radius: 999px; background: var(--secondary-container); transition: height .7s var(--ease-emph), background-color .5s var(--ease); }
.week-day.is-met .week-bar { background: var(--primary); }
.week-day small { font-size: 12px; color: var(--on-surface-variant); font-weight: 500; }
.week-day.is-today small { color: var(--primary); font-weight: 700; }
.legend { display: flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 12px; color: var(--on-surface-variant); }
.legend i { width: 18px; border-top: 1px dashed var(--outline); }

/* ---------- ボタン（M3） ---------- */
.filled-btn, .text-btn, .outlined-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 24px; border-radius: 999px; font-size: 14px; font-weight: 500; letter-spacing: .1px; cursor: pointer; text-decoration: none; }
.filled-btn { border: 0; background: var(--primary); color: var(--on-primary); }
.text-btn { border: 0; background: transparent; color: var(--primary); padding: 0 12px; }
.outlined-btn { border: 1px solid var(--outline); background: transparent; color: var(--primary); }
.outlined-btn.danger { color: var(--error); }

/* ---------- 設定（M3 のダイアログ。スマホでは全画面） ---------- */
.dialog { width: min(560px, calc(100% - 48px)); max-height: calc(100dvh - 48px); padding: 0; border: 0; border-radius: 28px; background: var(--surface-container-high); color: var(--on-surface); box-shadow: 0 8px 12px 6px var(--shadow); }
.dialog::backdrop { background: rgba(0, 0, 0, .32); }
.dialog[open] { animation: dialog-in .4s var(--ease-emph); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(-24px) scale(.96); } }
.dialog-inner { display: flex; flex-direction: column; max-height: inherit; }
.dialog-head { display: flex; align-items: center; gap: 4px; height: 64px; padding: 0 16px 0 8px; flex: none; }
.dialog-head h2 { margin: 0; font-size: 22px; font-weight: 400; }
.dialog-body { overflow-y: auto; padding: 0 24px 24px; }
.dialog h3 { margin: 24px 0 12px; font-size: 14px; font-weight: 500; color: var(--primary); letter-spacing: .1px; }
.dialog h3:first-child { margin-top: 4px; }
@media (max-width: 600px) {
  .dialog { width: 100%; max-width: none; height: 100%; max-height: none; margin: 0; border-radius: 0; background: var(--surface); }
  .dialog-body { padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
}

/* M3 の Outlined text field（ラベルは枠の上） */
.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px 12px; }
.field { position: relative; display: block; }
.field input { width: 100%; height: 56px; padding: 0 16px; border: 1px solid var(--outline); border-radius: 4px; background: transparent; color: var(--on-surface); font-size: 16px; font-variant-numeric: tabular-nums; transition: border-color .15s var(--ease); }
.field input:hover { border-color: var(--on-surface); }
.field input:focus { outline: 0; border: 2px solid var(--primary); padding: 0 15px; }
.field span { position: absolute; left: 12px; top: -9px; padding: 0 4px; font-size: 12px; color: var(--on-surface-variant); background: var(--surface-container-high); letter-spacing: .4px; pointer-events: none; white-space: nowrap; max-width: calc(100% - 24px); overflow: hidden; text-overflow: ellipsis; }
.field input:focus + span { color: var(--primary); }
@media (max-width: 600px) { .field span { background: var(--surface); } }

/* M3 のリストと Switch */
.list { display: flex; flex-direction: column; margin: 0 -24px; }
.list-item { display: flex; align-items: center; gap: 16px; min-height: 56px; padding: 8px 24px; cursor: pointer; }
.list-item--link { color: inherit; text-decoration: none; }
.list-item .lead { color: var(--on-surface-variant); }
.list-text { flex: 1; font-size: 16px; letter-spacing: .5px; }
.list-text small { display: block; font-size: 14px; color: var(--on-surface-variant); letter-spacing: .25px; }
.switch { appearance: none; -webkit-appearance: none; flex: none; position: relative; width: 52px; height: 32px; margin: 0; border: 2px solid var(--outline); border-radius: 999px; background: var(--surface-container-highest); cursor: pointer; transition: background-color .25s var(--ease), border-color .25s var(--ease); }
.switch::before { content: ""; position: absolute; top: 50%; left: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--outline); transform: translateY(-50%); transition: all .3s var(--ease-emph); }
.switch:checked { background: var(--primary); border-color: var(--primary); }
.switch:checked::before { left: 22px; width: 24px; height: 24px; background: var(--on-primary); }
.switch:active::before { width: 28px; height: 28px; }
.switch:checked:active::before { left: 20px; }
.switch:checked::after { content: ""; position: absolute; top: 50%; left: 29px; width: 6px; height: 11px; border: solid var(--primary); border-width: 0 2px 2px 0; transform: translateY(-65%) rotate(45deg); }

.account-box { padding: 16px; border-radius: 12px; background: var(--surface-container-highest); font-size: 14px; }
@media (max-width: 600px) { .account-box { background: var(--surface-container-high); } }
.account-box .filled-btn, .account-box .outlined-btn { margin-top: 12px; }
.account-box strong { display: block; font-weight: 500; }
.account-user { display: flex; align-items: center; gap: 12px; }
.account-user img, .account-user .letter { width: 40px; height: 40px; border-radius: 50%; flex: none; }
.account-user .letter { display: grid; place-items: center; color: #fff; font-weight: 500; }
.account-user small { display: block; color: var(--on-surface-variant); font-size: 12.5px; }

/* ---------- ホーム画面に追加（M3 の Elevated card）・Snackbar ---------- */
.install { position: fixed; left: 16px; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 30; display: flex; align-items: center; gap: 12px; max-width: 560px; margin: 0 auto; padding: 12px 12px 12px 16px; border-radius: 16px; background: var(--surface-container-low); box-shadow: 0 2px 6px 2px var(--shadow); animation: snackbarUp .3s var(--ease-emph) both; }
.install img { border-radius: 10px; flex: none; }
.install-text { flex: 1; min-width: 0; font-size: 14px; }
.install-text strong { display: block; font-weight: 500; }
.install-text span { color: var(--on-surface-variant); font-size: 13px; }
.snackbar { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); z-index: 40; min-height: 48px; max-width: min(560px, calc(100% - 32px)); display: flex; align-items: center; padding: 14px 16px; border-radius: 4px; background: var(--inverse-surface); color: var(--inverse-on-surface); font-size: 14px; letter-spacing: .25px; box-shadow: 0 3px 6px var(--shadow); opacity: 0; transform: translate(-50%, 12px); pointer-events: none; transition: opacity .3s var(--ease-emph), transform .3s var(--ease-emph); }
.snackbar.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 動き（MALU と同じ。時間とカーブは dictionary/styles.css の fadeUp・viewExit・viewEnter・settingsEnter・settingsLeave・softPop・ripple と同じ）---------- */
:root { --ease-accel: cubic-bezier(.3, 0, .8, .15); }  /* M3 の強調の加速 */
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } }
@keyframes snackbarUp { from { opacity: 0; transform: translateY(12px); } }
@keyframes viewExit { to { opacity: 0; transform: translateY(8px); } }
@keyframes viewEnter { from { opacity: 0; transform: translateY(12px); } }
@keyframes settingsEnter { from { opacity: 0; transform: translateX(24px); } }
@keyframes settingsLeave { to { opacity: 0; transform: translateX(24px); } }
@keyframes softPop { 0% { transform: scale(.96); } 60% { transform: scale(1.03); } 100% { transform: scale(1); } }
@keyframes ripple { to { transform: scale(1); opacity: 0; } }
/* 開いたとき: タイマーと記録のカードが、少しずつずれて下から出る（MALU の時計・検索・履歴と同じ） */
.timer-column { animation: fadeUp .5s var(--ease-emph) backwards; }
.cards > :nth-child(1) { animation: fadeUp .5s var(--ease-emph) .05s backwards; }
.cards > :nth-child(2) { animation: fadeUp .5s var(--ease-emph) .1s backwards; }
.cards > :nth-child(3) { animation: fadeUp .5s var(--ease-emph) .15s backwards; }
/* 設定を開く・閉じる（app.js の openSettings・closeSettings） */
.view-exit { animation: viewExit .18s var(--ease-accel) both; }
.view-enter { animation: viewEnter .4s var(--ease-emph) both; }
.settings-view--enter { animation: settingsEnter .4s var(--ease-emph) both; }
.settings-view--leave { animation: settingsLeave .2s var(--ease-accel) both; }
/* 選んだボタンが小さく弾む */
.segmented button.is-pop { animation: softPop .3s var(--ease) both; }
/* 押したところから広がる波紋（app.js。MALU と同じ） */
.icon-btn, .filled-btn, .text-btn, .outlined-btn, .tonal-icon-btn, .fab, .segmented button, .settings-nav__item, .settings-action, .chip { isolation: isolate; }
.ripple { position: absolute; border-radius: 50%; background: currentColor; opacity: .12; transform: scale(0); pointer-events: none; z-index: -1; animation: ripple .55s var(--ease) forwards; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- パソコン（広い画面）: 左にタイマー、右に記録 ---------- */
.timer-column { display: flex; flex-direction: column; align-items: center; width: 100%; }
.shortcuts { display: none; margin: 20px 0 0; font-size: 12.5px; color: var(--on-surface-variant); letter-spacing: .3px; text-align: center; }
.shortcuts kbd { display: inline-block; min-width: 26px; margin: 0 6px 0 12px; padding: 1px 7px; border-radius: 6px; border: 1px solid var(--outline-variant); border-bottom-width: 2px; background: var(--surface-container-low); color: var(--on-surface); font: 500 12px/1.6 var(--font); text-align: center; }
.shortcuts kbd:first-child { margin-left: 0; }
@media (hover: hover) and (pointer: fine) { .shortcuts { display: block; } }
@media (min-width: 1000px) {
  .top-bar, .page { max-width: 1120px; }
  .page { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: center; min-height: calc(100dvh - 64px); padding-top: 0; }
  .cards { grid-template-columns: 1fr; margin-top: 0; gap: 16px; }
  .timer { width: min(40vw, 420px, 58vh); }
  .time { font-size: clamp(72px, 7vw, 104px); }
}

/* ---------- 拡大表示（タイマーだけを画面いっぱいに。app.js の body.is-zen） ---------- */
body.is-zen .segmented, body.is-zen .cards, body.is-zen .round, body.is-zen .shortcuts, body.is-zen .brand, body.is-zen #sync-button, body.is-zen #settings-button { display: none !important; }
body.is-zen .top-bar { position: fixed; top: 0; right: 0; left: auto; z-index: 5; max-width: none; background: transparent; }
body.is-zen .page { display: flex; min-height: 100dvh; max-width: none; justify-content: center; padding: 0 16px; }
body.is-zen .timer-column { justify-content: center; min-height: 100dvh; }
body.is-zen .timer { width: min(88vw, 78vh); margin-top: 0; }
body.is-zen .time { font-size: clamp(88px, 21vmin, 240px); letter-spacing: -2px; }
body.is-zen .status { font-size: clamp(14px, 2.2vmin, 20px); }
body.is-zen .mode-chip { transform: scale(1.15); }
body.is-zen .ring circle { stroke-width: 10; }
body.is-zen .controls { margin-top: 12px; }
body.is-zen .waves { height: 26vh; }
/* 拡大表示で動いているあいだは、操作ボタンを控えめにする（マウスを動かすと戻る） */
body.is-zen.is-running.is-idle .controls, body.is-zen.is-running.is-idle .top-bar { opacity: 0; transition: opacity .8s var(--ease); }
body.is-zen.is-idle { cursor: none; }
.controls, .top-bar { transition: opacity .3s var(--ease); }
/* ---------- 設定（MALU の設定と同じ形の全画面。index.html の #settings。カテゴリの切りかえは app.js） ---------- */
.dialog.settings-view { width: 100%; max-width: none; height: 100%; max-height: none; margin: 0; padding: 0; border-radius: 0; background: var(--surface); box-shadow: none; overflow: hidden; }
.dialog.settings-view::backdrop { background: var(--surface); }
.settings-panel { display: flex; flex-direction: column; height: 100%; }
.settings-panel__header { flex: none; display: flex; align-items: center; gap: 4px; height: 64px; padding: 0 16px 0 8px; padding-top: env(safe-area-inset-top); }
.settings-panel__header h2 { margin: 0; font-size: 22px; line-height: 28px; font-weight: 400; color: var(--on-surface); }
.settings-layout { flex: 1; min-height: 0; display: grid; grid-template-columns: 300px minmax(0, 1fr); }
.settings-sidebar { padding: 4px 12px 24px; overflow-y: auto; }
.settings-sidebar__title { margin: 0; padding: 18px 16px; font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: .1px; color: var(--on-surface-variant); }
.settings-nav { display: flex; flex-direction: column; }
.settings-nav__item { position: relative; overflow: hidden; display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 24px 0 16px; border: 0; border-radius: 999px; background: transparent; color: var(--on-surface-variant); font: inherit; font-size: 14px; font-weight: 500; letter-spacing: .1px; white-space: nowrap; cursor: pointer; text-align: left; }
.settings-nav__item::after { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .15s var(--ease); pointer-events: none; }
.settings-nav__item:hover::after { opacity: .08; }
.settings-nav__item:active::after { opacity: .12; }
.settings-nav__item:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }
.settings-nav__item.active { background: var(--secondary-container); color: var(--on-secondary-container); }
.settings-nav__text { display: flex; flex-direction: column; min-width: 0; text-align: left; }
.settings-nav__text small { display: none; }
.settings-nav__item[hidden] { display: none; }
.settings-listhead { padding: 4px 0 12px; }
.settings-listhead__title { display: none; }
.settings-search { display: flex; align-items: center; gap: 12px; height: 48px; padding: 0 16px; border-radius: 24px; background: var(--surface-container-high); color: var(--on-surface-variant); cursor: text; }
.settings-search input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: transparent; color: var(--on-surface); font: inherit; font-size: 16px; }
.settings-search input::-webkit-search-cancel-button { cursor: pointer; }
.settings-search:focus-within { box-shadow: inset 0 0 0 2px var(--primary); }
.settings-search__none { margin: 16px; font-size: 14px; color: var(--on-surface-variant); }
.settings-me { margin-left: auto; }
.settings-panel__body { min-height: 0; overflow-y: auto; width: 100%; max-width: 760px; padding: 8px 24px calc(56px + env(safe-area-inset-bottom)); }
.settings-section { display: none; flex-direction: column; gap: 2px; }
.settings-section--active { display: flex; animation: fadeUp .3s var(--ease-emph) both; }
.settings-view .settings-section h3 { margin: 0; padding: 14px 4px 16px; font-size: 24px; line-height: 32px; font-weight: 400; letter-spacing: 0; color: var(--on-surface); }
.settings-item { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 72px; padding: 16px 20px; border-radius: 4px; background: var(--surface-container); }
label.settings-item { cursor: pointer; }
.settings-section h3 + .settings-item, .settings-section .about-header + .settings-item, .settings-item--news + .settings-item { border-top-left-radius: 20px; border-top-right-radius: 20px; }
.settings-section > .settings-item:last-child { border-bottom-left-radius: 20px; border-bottom-right-radius: 20px; }
.settings-item__title { margin: 0; font-size: 16px; line-height: 24px; letter-spacing: .15px; color: var(--on-surface); }
.settings-item__description { margin: 0; font-size: 14px; line-height: 20px; letter-spacing: .25px; color: var(--on-surface-variant); }
.settings-item__hint:empty { display: none; }
.settings-item__hint { margin-top: 4px; color: var(--primary); }
.settings-item--news { margin-bottom: 12px; border-radius: 20px; background: var(--secondary-container); }
.settings-item--news .settings-item__title, .settings-item--news .settings-item__description { color: var(--on-secondary-container); }
.settings-action { position: relative; overflow: hidden; flex: none; display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 24px; border: 0; border-radius: 999px; background: var(--secondary-container); color: var(--on-secondary-container); font: inherit; font-size: 14px; font-weight: 500; letter-spacing: .1px; white-space: nowrap; text-decoration: none; cursor: pointer; }
.settings-action::after { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; transition: opacity .15s var(--ease); }
.settings-action:hover::after { opacity: .08; }
.settings-action:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.settings-item--news .settings-action { background: var(--surface-container-lowest); color: var(--primary); }
.settings-action--danger { background: var(--error-container); color: var(--on-error-container); }
.settings-number { flex: none; width: 112px; height: 48px; padding: 0 14px; border: 1px solid var(--outline); border-radius: 4px; background: transparent; color: var(--on-surface); font: inherit; font-size: 16px; font-variant-numeric: tabular-nums; text-align: right; }
.settings-number:hover { border-color: var(--on-surface); }
.settings-number:focus { outline: 0; border: 2px solid var(--primary); padding: 0 13px; }
.settings-card { padding: 20px; border-radius: 20px; background: var(--surface-container); }
.about-status { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 16px; }
.about-status__mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--primary-container); color: var(--on-primary-container); }
.about-status__mark .ms { font-size: 20px; }
.about-status.is-checking .about-status__mark .ms { animation: settings-spin 1s linear infinite; }
.about-status.is-new .about-status__mark { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.about-status.is-error .about-status__mark { background: var(--error-container); color: var(--on-error-container); }
@keyframes settings-spin { to { transform: rotate(360deg); } }
.settings-action:disabled { background: color-mix(in srgb, var(--on-surface) 12%, transparent); color: color-mix(in srgb, var(--on-surface) 38%, transparent); cursor: default; }
.about-header { display: flex; align-items: center; gap: 20px; padding: 8px 4px 24px; }
.about-icon { width: 72px; height: 72px; border-radius: 16px; flex: none; }
.about-name { margin: 0 0 4px; font-size: 24px; line-height: 32px; font-weight: 400; color: var(--on-surface); }
.about-description { margin: 0; font-size: 14px; line-height: 20px; color: var(--on-surface-variant); }
@media (max-width: 820px) {
  /* スマホ: Android（Pixel）の設定アプリと同じ形。最初はカテゴリの一覧（大きな「設定」・検索・アイコンと名前と要約の 2 行）、
     押すと中身に切りかわる。戻るで一覧へ（app.js の is-detail）。上の帯は戻るボタンとアカウントだけ */
  .settings-panel__header h2 { display: none; }
  .settings-layout { display: flex; flex-direction: column; }
  .settings-layout:not(.is-detail) .settings-panel__body { display: none; }
  .settings-layout.is-detail .settings-sidebar { display: none; }
  .settings-sidebar { flex: 1; min-height: 0; padding: 0 0 calc(32px + env(safe-area-inset-bottom)); overflow-y: auto; }
  .settings-sidebar__title { display: none; }
  .settings-listhead { padding: 0 16px 8px; }
  .settings-listhead__title { display: block; margin: 16px 8px 28px; font-size: 36px; line-height: 44px; font-weight: 400; color: var(--on-surface); }
  .settings-search { height: 56px; border-radius: 28px; padding: 0 20px; gap: 16px; }
  .settings-nav { gap: 0; }
  .settings-nav__item { height: auto; min-height: 72px; gap: 24px; padding: 12px 24px; border-radius: 0; background: none; color: var(--on-surface); white-space: normal; }
  .settings-nav__item.active { background: none; color: var(--on-surface); }
  .settings-nav__item .ms { color: var(--on-surface-variant); }
  .settings-nav__text span { font-size: 20px; line-height: 28px; font-weight: 400; letter-spacing: 0; }
  .settings-nav__text small { display: block; font-size: 14px; line-height: 20px; font-weight: 400; letter-spacing: .1px; color: var(--on-surface-variant); }
  .settings-layout.is-detail ~ .settings-me, .settings-panel:has(.settings-layout.is-detail) .settings-me { display: none; }
  .settings-panel__body { flex: 1; max-width: none; padding: 0 16px calc(40px + env(safe-area-inset-bottom)); }
  .settings-item { flex-wrap: wrap; gap: 12px 16px; }
  .settings-item > div { flex: 1 1 160px; min-width: 0; }
  .settings-number { width: 88px; }
  .about-status { grid-template-columns: auto minmax(0, 1fr); }
  .about-status .settings-action { grid-column: 1 / -1; justify-self: start; }
}
@media (prefers-reduced-motion: reduce) {
  .settings-section--active { animation: none; }
}