:root {
  color-scheme: light;
  --color-background: #f5f7fb;
  --color-surface: #ffffff;
  --color-surface-low: #f0f3f8;
  --color-surface-high: #e7ecf4;
  --color-text: #182238;
  --color-text-secondary: #5b687d;
  --color-outline: #d6deea;
  --color-primary: #315fc6;
  --color-primary-strong: #23499f;
  --color-on-primary: #ffffff;
  --color-primary-container: #e7efff;
  --color-on-primary-container: #193b7b;
  --color-review: #6d4cc9;
  --color-review-container: #f0eaff;
  --color-on-review: #4b2f9a;
  --color-success: #167448;
  --color-success-container: #def5e7;
  --color-warning: #995700;
  --color-warning-container: #fff0d4;
  --color-danger: #ad2d27;
  --color-danger-container: #ffebe8;
  --color-info: #2563a6;
  --color-info-container: #e7f1ff;
  --color-disabled: #8f99aa;
  --color-scrim: rgba(17, 28, 48, .5);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --radius-small: 10px;
  --radius-medium: 14px;
  --radius-large: 20px;
  --radius-hero: 24px;
  --shadow-small: 0 2px 10px rgba(36, 57, 88, .06);
  --shadow-medium: 0 10px 30px rgba(36, 57, 88, .1);
  --shadow-hero: 0 18px 44px rgba(49, 95, 198, .16);
  --font-scale: 1;
  --density-space: var(--space-4);
  --nav-height: 74px;
  --bg: var(--color-background);
  --surface: var(--color-surface);
  --surface-2: var(--color-surface-low);
  --surface-3: var(--color-surface-high);
  --text: var(--color-text);
  --muted: var(--color-text-secondary);
  --border: var(--color-outline);
  --accent: var(--color-primary);
  --accent-strong: var(--color-primary-strong);
  --accent-soft: var(--color-primary-container);
  --orange: #c16820;
  --orange-soft: #ffeadb;
  --warning: var(--color-warning);
  --warning-soft: var(--color-warning-container);
  --danger: var(--color-danger);
  --danger-soft: var(--color-danger-container);
  --success: var(--color-success);
  --success-soft: var(--color-success-container);
  --shadow: var(--shadow-small);
  font-size: calc(16px * var(--font-scale));
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-background: #111827;
  --color-surface: #192337;
  --color-surface-low: #202c42;
  --color-surface-high: #2a3850;
  --color-text: #f1f5fd;
  --color-text-secondary: #b2bfd2;
  --color-outline: #35445c;
  --color-primary: #9ab7ff;
  --color-primary-strong: #c7d7ff;
  --color-on-primary: #0d2d67;
  --color-primary-container: #263f73;
  --color-on-primary-container: #dce6ff;
  --color-review: #c5afff;
  --color-review-container: #3d3168;
  --color-on-review: #eee8ff;
  --color-success: #79d6a5;
  --color-success-container: #1e4935;
  --color-warning: #ffc16b;
  --color-warning-container: #513b19;
  --color-danger: #ffb4ab;
  --color-danger-container: #5b2928;
  --color-info: #9acbff;
  --color-info-container: #243e62;
  --color-disabled: #7d899c;
  --color-scrim: rgba(0, 0, 0, .66);
  --orange: #ffb68d;
  --orange-soft: #55321f;
  --shadow-small: 0 3px 14px rgba(0, 0, 0, .2);
  --shadow-medium: 0 12px 34px rgba(0, 0, 0, .28);
  --shadow-hero: 0 20px 48px rgba(0, 0, 0, .34);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    color-scheme: dark;
    --color-background: #111827;
    --color-surface: #192337;
    --color-surface-low: #202c42;
    --color-surface-high: #2a3850;
    --color-text: #f1f5fd;
    --color-text-secondary: #b2bfd2;
    --color-outline: #35445c;
    --color-primary: #9ab7ff;
    --color-primary-strong: #c7d7ff;
    --color-on-primary: #0d2d67;
    --color-primary-container: #263f73;
    --color-on-primary-container: #dce6ff;
    --color-review: #c5afff;
    --color-review-container: #3d3168;
    --color-on-review: #eee8ff;
    --color-success: #79d6a5;
    --color-success-container: #1e4935;
    --color-warning: #ffc16b;
    --color-warning-container: #513b19;
    --color-danger: #ffb4ab;
    --color-danger-container: #5b2928;
    --color-info: #9acbff;
    --color-info-container: #243e62;
    --color-disabled: #7d899c;
    --color-scrim: rgba(0, 0, 0, .66);
    --orange: #ffb68d;
    --orange-soft: #55321f;
    --shadow-small: 0 3px 14px rgba(0, 0, 0, .2);
    --shadow-medium: 0 12px 34px rgba(0, 0, 0, .28);
    --shadow-hero: 0 20px 48px rgba(0, 0, 0, .34);
  }
}

* { box-sizing: border-box; }
html { min-height: 100%; max-width: 100%; overflow-x: clip; background: var(--color-background); }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  max-width: 100%;
  overflow-x: clip;
  background:
    radial-gradient(circle at 100% -8%, color-mix(in srgb, var(--color-primary-container) 72%, transparent), transparent 30rem),
    radial-gradient(circle at -15% 45%, color-mix(in srgb, var(--color-review-container) 36%, transparent), transparent 25rem),
    var(--color-background);
  color: var(--color-text);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", system-ui, sans-serif;
  line-height: 1.55;
  -webkit-tap-highlight-color: transparent;
  overflow-wrap: anywhere;
  text-rendering: optimizeLegibility;
}
#app { max-width: 100%; }
body[data-density="compact"] { --density-space: var(--space-3); }
button, input, select, textarea { font: inherit; color: inherit; }
button, select, input, textarea { min-height: 46px; }
button {
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-medium);
  padding: 10px 14px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform .14s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease;
}
button:active:not(:disabled) { transform: scale(.975); }
button:disabled { opacity: .5; cursor: not-allowed; }
@media (hover: hover) { button:hover:not(:disabled) { border-color: color-mix(in srgb, var(--color-primary) 62%, var(--color-outline)); box-shadow: var(--shadow-small); } }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible, summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  outline-offset: 2px;
}
input, select, textarea {
  width: 100%;
  border: 1px solid var(--color-outline);
  border-radius: 12px;
  padding: 11px 12px;
  background: var(--color-surface);
  box-shadow: inset 0 1px 2px rgba(32, 48, 75, .03);
}
input:hover, select:hover, textarea:hover { border-color: color-mix(in srgb, var(--color-primary) 38%, var(--color-outline)); }
textarea { min-height: 92px; resize: vertical; }
label { display: grid; gap: 7px; color: var(--color-text-secondary); font-size: .9rem; font-weight: 600; }
label small { font-weight: 400; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(1.24rem, 5.3vw, 1.56rem); letter-spacing: -.035em; line-height: 1.18; }
h2 { font-size: clamp(1.16rem, 4.7vw, 1.36rem); letter-spacing: -.025em; line-height: 1.3; }
h3 { font-size: 1rem; line-height: 1.38; }
small, .muted { color: var(--color-text-secondary); }
.numeric { font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }

.ui-icon { width: 20px; height: 20px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.button-with-icon { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.button-with-icon > span { min-width: 0; }

.boot-screen, .standalone-message {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--space-4);
  padding: 28px;
  text-align: center;
}
.boot-mark {
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  border-radius: 22px;
  background: linear-gradient(145deg, var(--color-primary), color-mix(in srgb, var(--color-review) 45%, var(--color-primary)));
  color: var(--color-on-primary);
  box-shadow: var(--shadow-hero);
  font-size: 1.8rem;
  font-weight: 900;
}

.app-shell { min-height: 100dvh; padding-bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + 24px); }
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
  padding: calc(10px + env(safe-area-inset-top)) 16px 9px;
  background: color-mix(in srgb, var(--color-background) 84%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--color-outline) 62%, transparent);
  backdrop-filter: blur(18px) saturate(1.2);
}
.brand-line { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  color: var(--color-on-primary);
  background: linear-gradient(145deg, var(--color-primary), color-mix(in srgb, var(--color-review) 45%, var(--color-primary)));
  box-shadow: 0 6px 16px color-mix(in srgb, var(--color-primary) 24%, transparent);
}
.brand-mark .ui-icon { width: 22px; height: 22px; }
.header-title { min-width: 0; }
.header-title p { color: var(--color-text-secondary); font-size: .7rem; font-weight: 700; letter-spacing: .03em; }
.header-title h1 { white-space: nowrap; }
.save-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  min-height: 32px;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--color-text-secondary);
  background: color-mix(in srgb, var(--color-surface) 86%, transparent);
  border: 1px solid var(--color-outline);
  font-size: .72rem;
}
.save-state > span { width: 7px; height: 7px; border-radius: 50%; background: var(--color-success); }
.save-state[data-kind="saving"] > span { background: var(--color-warning); animation: status-pulse 1s infinite alternate; }
.save-state[data-kind="error"] > span { background: var(--color-danger); }
.save-state strong { font-weight: 700; }
@keyframes status-pulse { to { opacity: .35; } }

.main-content { display: grid; gap: 14px; width: min(100% - 24px, 720px); margin: 0 auto; padding: 12px 0 30px; }
.page-heading { display: flex; justify-content: space-between; align-items: end; gap: 12px; padding: 4px 3px 2px; }
.page-heading > div { min-width: 0; }
.page-heading p { color: var(--color-text-secondary); font-size: .82rem; }
.today-heading { align-items: center; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.section-head > div { min-width: 0; }
.section-kicker { color: var(--color-text-secondary); font-size: .72rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.eyebrow { color: var(--color-primary-strong); font-size: .72rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }

.card {
  display: grid;
  gap: var(--density-space);
  min-width: 0;
  padding: var(--density-space);
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  box-shadow: var(--shadow-small);
}
.card-flat { box-shadow: none; }
.card-accent { background: linear-gradient(145deg, var(--color-primary-container), var(--color-surface) 78%); border-color: color-mix(in srgb, var(--color-primary) 28%, var(--color-outline)); }
.card-warn { background: var(--color-warning-container); border-color: color-mix(in srgb, var(--color-warning) 35%, var(--color-outline)); }
.card-danger { background: var(--color-danger-container); border-color: color-mix(in srgb, var(--color-danger) 34%, var(--color-outline)); }

.primary { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); font-weight: 800; box-shadow: 0 5px 14px color-mix(in srgb, var(--color-primary) 22%, transparent); }
.primary:hover:not(:disabled) { border-color: var(--color-primary); box-shadow: 0 8px 20px color-mix(in srgb, var(--color-primary) 30%, transparent); }
.secondary { background: var(--color-primary-container); border-color: transparent; color: var(--color-on-primary-container); font-weight: 750; }
.quiet-button { background: transparent; border-color: transparent; color: var(--color-primary-strong); font-weight: 700; box-shadow: none; }
.warn { background: var(--color-warning-container); border-color: transparent; color: var(--color-warning); }
.danger { background: var(--color-danger-container); border-color: color-mix(in srgb, var(--color-danger) 28%, transparent); color: var(--color-danger); font-weight: 750; }
.ghost { background: transparent; }
.icon-button { width: 46px; padding: 9px; flex: 0 0 46px; }
.full-button { width: 100%; min-height: 52px; }

.today-hero {
  position: relative;
  display: grid;
  gap: var(--space-4);
  min-width: 0;
  overflow: hidden;
  padding: clamp(17px, 5vw, 23px);
  border: 1px solid color-mix(in srgb, var(--color-primary) 30%, var(--color-outline));
  border-radius: var(--radius-hero);
  background:
    radial-gradient(circle at 96% 4%, color-mix(in srgb, var(--color-review-container) 70%, transparent), transparent 15rem),
    linear-gradient(145deg, var(--color-primary-container), var(--color-surface) 68%);
  box-shadow: var(--shadow-hero);
}
.today-hero::after { content: ""; position: absolute; right: -34px; top: -46px; width: 130px; height: 130px; border: 24px solid color-mix(in srgb, var(--color-primary) 8%, transparent); border-radius: 50%; pointer-events: none; }
.today-hero > * { position: relative; z-index: 1; }
.today-hero.is-complete { background: radial-gradient(circle at 96% 4%, color-mix(in srgb, var(--color-primary-container) 60%, transparent), transparent 15rem), linear-gradient(145deg, var(--color-success-container), var(--color-surface) 70%); border-color: color-mix(in srgb, var(--color-success) 34%, var(--color-outline)); box-shadow: 0 18px 44px color-mix(in srgb, var(--color-success) 13%, transparent); }
.hero-top { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.hero-state { display: inline-flex; align-items: center; min-height: 30px; padding: 5px 10px; border-radius: 999px; background: color-mix(in srgb, var(--color-surface) 70%, transparent); color: var(--color-primary-strong); border: 1px solid color-mix(in srgb, var(--color-primary) 24%, transparent); font-size: .76rem; font-weight: 800; white-space: nowrap; }
.is-complete .hero-state { color: var(--color-success); border-color: color-mix(in srgb, var(--color-success) 25%, transparent); }
.hero-focus { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 16px; }
.hero-remaining { display: grid; gap: 2px; min-width: 0; }
.hero-remaining > span { color: var(--color-text-secondary); font-size: .82rem; font-weight: 700; }
.hero-remaining > strong { font-size: clamp(1.85rem, 9.2vw, 3.25rem); line-height: 1.08; letter-spacing: -.055em; font-variant-numeric: tabular-nums; }
.progress-ring { display: grid; place-items: center; width: 88px; height: 88px; border-radius: 50%; background: conic-gradient(var(--color-primary) var(--progress), var(--color-surface-high) 0); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 16%, transparent); }
.is-complete .progress-ring { background: conic-gradient(var(--color-success) var(--progress), var(--color-surface-high) 0); }
.progress-ring > span { display: grid; place-items: center; align-content: center; width: 69px; height: 69px; border-radius: 50%; background: color-mix(in srgb, var(--color-surface) 96%, transparent); box-shadow: 0 2px 8px rgba(31, 48, 74, .09); }
.progress-ring strong { font-size: 1.05rem; line-height: 1.15; font-variant-numeric: tabular-nums; }
.progress-ring small { font-size: .62rem; }
.hero-counts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.hero-counts > div { min-width: 0; padding: 9px 8px; border: 1px solid color-mix(in srgb, var(--color-outline) 72%, transparent); border-radius: 12px; background: color-mix(in srgb, var(--color-surface) 76%, transparent); }
.hero-counts span { display: block; color: var(--color-text-secondary); font-size: .66rem; }
.hero-counts strong { display: block; margin-top: 2px; font-size: .82rem; font-variant-numeric: tabular-nums; }
.next-action { display: grid; grid-template-columns: 44px minmax(0, 1fr); align-items: center; gap: 11px; padding: 11px; border-radius: 15px; background: color-mix(in srgb, var(--color-surface) 82%, transparent); border: 1px solid color-mix(in srgb, var(--color-primary) 18%, var(--color-outline)); }
.next-icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 13px; background: var(--color-primary-container); color: var(--color-primary-strong); }
.next-copy { display: grid; min-width: 0; }
.next-copy > span { color: var(--color-text-secondary); font-size: .68rem; font-weight: 700; }
.next-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.next-copy small { margin-top: 1px; }
.hero-actions { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 8px; }
.hero-actions button { min-width: 0; min-height: 52px; }
.hero-secondary { background: color-mix(in srgb, var(--color-surface) 84%, transparent); border-color: color-mix(in srgb, var(--color-primary) 22%, var(--color-outline)); color: var(--color-primary-strong); font-weight: 750; }
.completion-symbol { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 18px; color: var(--color-success); background: color-mix(in srgb, var(--color-surface) 72%, transparent); }
.completion-symbol .ui-icon { width: 31px; height: 31px; stroke-width: 2.4; }
.completion-message { color: var(--color-text-secondary); }

.review-spotlight {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--color-review) 28%, var(--color-outline));
  border-radius: var(--radius-large);
  background: linear-gradient(135deg, var(--color-review-container), var(--color-surface) 82%);
  box-shadow: var(--shadow-small);
}
.review-spotlight-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 15px; color: var(--color-on-review); background: color-mix(in srgb, var(--color-surface) 66%, transparent); }
.review-spotlight-copy { min-width: 0; }
.review-spotlight-copy h2 { font-size: 1.02rem; }
.review-spotlight-copy .meta-row { margin-top: 4px; color: var(--color-on-review); }
.review-action { grid-column: 1 / -1; min-height: 48px; background: var(--color-review); border-color: var(--color-review); color: #fff; font-weight: 800; }
:root[data-theme="dark"] .review-action { color: #261653; }
@media (prefers-color-scheme: dark) { :root[data-theme="system"] .review-action { color: #261653; } }

.mission-section { gap: var(--space-4); }
.mission-list, .book-list, .history-list, .review-list, .setting-list { display: grid; gap: 11px; min-width: 0; }
.mission-row, .book-row, .review-row, .history-entry { display: grid; gap: 11px; min-width: 0; padding: 14px; border: 1px solid var(--color-outline); border-radius: 17px; background: var(--color-surface); }
.mission-row { position: relative; overflow: hidden; background: var(--color-surface); }
.mission-row::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--color-outline); }
.mission-row.mission-priority::before { background: var(--color-primary); }
.mission-row.mission-overdue::before { background: var(--color-danger); }
.mission-row.mission-complete { background: color-mix(in srgb, var(--color-success-container) 40%, var(--color-surface)); }
.mission-title, .book-title { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.mission-title h3, .book-title h3 { min-width: 0; }
.mission-heading { min-width: 0; }
.priority-label { display: block; margin-bottom: 2px; color: var(--color-primary-strong); font-size: .68rem; font-weight: 800; }
.remaining { flex: 0 0 auto; color: var(--color-primary-strong); font-size: 1rem; font-weight: 900; font-variant-numeric: tabular-nums; }
.mission-progress-copy, .book-progress-line { display: flex; justify-content: space-between; gap: 12px; font-size: .84rem; }
.mission-progress-copy strong, .book-progress-line strong { font-variant-numeric: tabular-nums; }
.progress { height: 9px; overflow: hidden; border-radius: 999px; background: var(--color-surface-high); }
.progress > span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 70%, var(--color-review))); transition: width .25s ease; }
.mission-next { display: flex; align-items: baseline; gap: 8px; min-width: 0; padding: 9px 10px; border-radius: 12px; background: var(--color-surface-low); }
.mission-next span { color: var(--color-text-secondary); font-size: .72rem; font-weight: 700; }
.mission-next strong { min-width: 0; color: var(--color-text); }
.mission-facts { display: flex; flex-wrap: wrap; gap: 6px; }
.mission-facts > span, .mini-badge { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 8px; border-radius: 999px; background: var(--color-surface-low); color: var(--color-text-secondary); font-size: .7rem; font-weight: 700; }
.fact-warning, .mini-badge.warning { color: var(--color-warning) !important; background: var(--color-warning-container) !important; }
.fact-danger, .mini-badge.danger { color: var(--color-danger) !important; background: var(--color-danger-container) !important; }
.fact-good, .mini-badge.success { color: var(--color-success) !important; background: var(--color-success-container) !important; }
.mini-badge.info { color: var(--color-info); background: var(--color-info-container); }
.mini-badge.review { color: var(--color-on-review); background: var(--color-review-container); }
.mission-main-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.mission-main-actions button { min-width: 0; }
.mission-sub-actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 4px; border-top: 1px solid var(--color-outline); padding-top: 6px; }
.mission-sub-actions button { min-height: 40px; padding: 6px 10px; font-size: .78rem; }

.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.metric { min-width: 0; padding: 11px; border-radius: 13px; background: var(--color-surface-low); }
.metric span { display: block; color: var(--color-text-secondary); font-size: .72rem; }
.metric strong { display: block; margin-top: 2px; font-size: 1.03rem; font-variant-numeric: tabular-nums; }
.unit-summary, .filter-row, .book-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.unit-pill, .chip { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 38px; padding: 7px 11px; border-radius: 999px; border: 1px solid var(--color-outline); background: var(--color-surface); color: var(--color-text-secondary); font-size: .8rem; }
.chip[aria-pressed="true"], .chip-active { background: var(--color-primary-container); border-color: color-mix(in srgb, var(--color-primary) 45%, transparent); color: var(--color-primary-strong); font-weight: 800; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 12%, transparent); }
.surface-tabs { padding: 4px; border-radius: 999px; background: var(--color-surface-low); flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
.surface-tabs::-webkit-scrollbar { display: none; }
.surface-tabs .chip { flex: 1 0 auto; border-color: transparent; background: transparent; }
.surface-tabs .chip[aria-pressed="true"] { background: var(--color-surface); border-color: var(--color-outline); box-shadow: var(--shadow-small); }
.toolbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.search-toolbar { padding: 4px 0 2px; }

.book-list { align-items: start; }
.book-card { position: relative; overflow: hidden; padding: 15px; box-shadow: var(--shadow-small); }
.book-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--color-primary); }
.book-card.state-complete::before { background: var(--color-success); }
.book-card.state-paused::before, .book-card.state-archived::before { background: var(--color-disabled); }
.book-card.state-deadline::before { background: var(--color-warning); }
.book-card.state-overdue::before { background: var(--color-danger); }
.book-card.state-complete { background: color-mix(in srgb, var(--color-success-container) 34%, var(--color-surface)); }
.book-card.state-archived { background: var(--color-surface-low); }
.book-name-block { display: grid; min-width: 0; gap: 2px; }
.book-unit { display: inline-flex; width: max-content; min-height: 22px; align-items: center; padding: 2px 7px; border-radius: 999px; background: var(--color-primary-container); color: var(--color-primary-strong); font-size: .66rem; font-weight: 800; }
.book-primary-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.book-primary-facts > div { min-width: 0; padding: 8px; border-radius: 11px; background: var(--color-surface-low); }
.book-primary-facts span { display: block; color: var(--color-text-secondary); font-size: .66rem; }
.book-primary-facts strong { display: block; margin-top: 1px; font-size: .9rem; font-variant-numeric: tabular-nums; }
.book-date-line, .number-summary { color: var(--color-text-secondary); font-size: .76rem; }
.number-summary { padding: 8px 10px; border-radius: 10px; background: var(--color-review-container); color: var(--color-on-review); }
.book-actions { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 8px; }
.book-actions button { min-width: 0; }
.status-badge { display: inline-flex; align-items: center; min-height: 28px; padding: 4px 9px; border-radius: 999px; background: var(--color-surface-low); color: var(--color-text-secondary); font-size: .72rem; font-weight: 800; white-space: nowrap; }
.status-badge.weak, .status-badge.danger { background: var(--color-danger-container); color: var(--color-danger); }
.status-badge.review { background: var(--color-review-container); color: var(--color-on-review); }
.status-badge.good { background: var(--color-success-container); color: var(--color-success); }
.status-badge.warning { background: var(--color-warning-container); color: var(--color-warning); }
.status-badge.info { background: var(--color-info-container); color: var(--color-info); }

.review-hero { display: grid; gap: 16px; padding: clamp(17px, 5vw, 23px); border: 1px solid color-mix(in srgb, var(--color-review) 30%, var(--color-outline)); border-radius: var(--radius-hero); background: radial-gradient(circle at 100% 0, color-mix(in srgb, var(--color-primary-container) 60%, transparent), transparent 16rem), linear-gradient(145deg, var(--color-review-container), var(--color-surface) 72%); box-shadow: 0 18px 42px color-mix(in srgb, var(--color-review) 13%, transparent); }
.review-hero-top { display: flex; align-items: center; gap: 13px; }
.review-hero-icon { display: grid; place-items: center; width: 54px; height: 54px; flex: 0 0 auto; border-radius: 17px; background: color-mix(in srgb, var(--color-surface) 70%, transparent); color: var(--color-on-review); }
.review-hero-icon .ui-icon { width: 28px; height: 28px; }
.review-lead { color: var(--color-text-secondary); }
.review-metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.review-metrics > div { min-width: 0; padding: 9px 6px; border-radius: 11px; background: color-mix(in srgb, var(--color-surface) 70%, transparent); text-align: center; }
.review-metrics span { display: block; color: var(--color-text-secondary); font-size: .63rem; }
.review-metrics strong { display: block; font-size: .88rem; }
.review-primary { background: var(--color-review); border-color: var(--color-review); color: #fff; box-shadow: 0 6px 18px color-mix(in srgb, var(--color-review) 25%, transparent); }
:root[data-theme="dark"] .review-primary { color: #261653; }
@media (prefers-color-scheme: dark) { :root[data-theme="system"] .review-primary { color: #261653; } }
.review-row { grid-template-columns: 52px minmax(0, 1fr); align-items: center; border-left: 4px solid var(--color-review); }
.review-row.status-weak { border-left-color: var(--color-warning); }
.review-number { display: grid; place-items: center; align-content: center; width: 52px; height: 52px; border-radius: 15px; background: var(--color-review-container); color: var(--color-on-review); }
.review-number strong { font-size: 1.05rem; line-height: 1; }
.review-number span { font-size: .58rem; }
.review-row-copy { min-width: 0; }
.review-row-action { grid-column: 1 / -1; width: 100%; }

.segmented { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; padding: 4px; border-radius: 16px; background: var(--color-surface-low); }
.segmented button { min-width: 0; min-height: 42px; border: 0; background: transparent; padding: 7px 5px; box-shadow: none; font-size: .78rem; }
.segmented button .ui-icon { width: 17px; height: 17px; }
.segmented button[aria-pressed="true"] { background: var(--color-surface); color: var(--color-primary-strong); box-shadow: var(--shadow-small); font-weight: 800; }
.history-summary, .stats-summary { display: grid; gap: 14px; padding: 18px; border: 1px solid color-mix(in srgb, var(--color-info) 24%, var(--color-outline)); border-radius: var(--radius-large); background: linear-gradient(145deg, var(--color-info-container), var(--color-surface) 78%); box-shadow: var(--shadow-medium); }
.history-day { display: grid; gap: 8px; }
.history-day-heading { position: sticky; top: 68px; z-index: 3; display: flex; justify-content: space-between; align-items: end; gap: 10px; padding: 9px 4px; background: color-mix(in srgb, var(--color-background) 90%, transparent); backdrop-filter: blur(9px); }
.history-day-heading span { color: var(--color-primary-strong); font-size: .68rem; font-weight: 800; }
.history-day-heading h3 { font-size: .88rem; }
.history-day-heading > strong { font-size: .8rem; }
.history-entry { background: var(--color-surface); border-left: 4px solid var(--color-info); }
.history-entry .entry-head { display: flex; justify-content: space-between; align-items: start; gap: 10px; }
.history-entry .entry-amount { flex: 0 0 auto; padding: 5px 9px; border-radius: 999px; background: var(--color-success-container); color: var(--color-success); font-weight: 900; font-variant-numeric: tabular-nums; }
.history-edit { justify-self: end; min-height: 40px; padding-block: 6px; }
.stats-streak { display: grid; justify-items: end; }
.stats-streak span { color: var(--color-text-secondary); font-size: .68rem; }
.stats-streak strong { font-size: 1.2rem; color: var(--color-primary-strong); }

.calendar-head, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.calendar-head div { padding: 5px 0; color: var(--color-text-secondary); font-size: .7rem; text-align: center; }
.calendar-day { display: grid; align-content: space-between; min-width: 0; min-height: 70px; padding: 6px; border: 1px solid var(--color-outline); border-radius: 11px; background: var(--color-surface); text-align: left; box-shadow: none; }
.calendar-day.outside { opacity: .38; }
.calendar-day.today { border: 2px solid var(--color-primary); box-shadow: inset 0 0 0 1px var(--color-primary-container); }
.calendar-day.met { background: var(--color-success-container); }
.calendar-day.partial { background: var(--color-warning-container); }
.calendar-day.missed { background: var(--color-danger-container); }
.calendar-day .day-num { font-size: .78rem; font-weight: 850; }
.calendar-day .day-mark { font-size: .72rem; font-weight: 900; }
.calendar-day .day-amount { color: var(--color-text-secondary); font-size: .57rem; line-height: 1.2; }
.calendar-hint { padding: 8px 10px; border-radius: 10px; background: var(--color-info-container); color: var(--color-info); font-size: .74rem; }
.legend { display: flex; flex-wrap: wrap; gap: 10px; color: var(--color-text-secondary); font-size: .74rem; }
.legend i { display: inline-block; width: 10px; height: 10px; margin-right: 4px; border-radius: 3px; }

.chart { display: grid; grid-template-columns: repeat(14, minmax(11px, 1fr)); align-items: end; gap: 5px; min-height: 158px; padding: 12px 3px 0; border-bottom: 1px solid var(--color-outline); }
.chart-day { display: grid; grid-template-rows: 110px auto; align-items: end; gap: 5px; min-width: 0; }
.bars { display: flex; align-items: end; justify-content: center; gap: 2px; height: 110px; }
.bar-q, .bar-p { width: 42%; min-height: 2px; border-radius: 4px 4px 0 0; }
.bar-q { background: var(--color-primary); }
.bar-p { background: var(--orange); }
.chart-label { color: var(--color-text-secondary); font-size: .54rem; text-align: center; }

.empty-card { grid-column: 1 / -1; }
.empty-state { display: grid; justify-items: center; gap: 11px; padding: 30px 18px; text-align: center; }
.empty-symbol { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 18px; background: var(--color-primary-container); color: var(--color-primary-strong); font-size: 1.5rem; }
.welcome-card { display: grid; justify-items: center; gap: 13px; padding: clamp(22px, 7vw, 34px) 20px; border: 1px solid color-mix(in srgb, var(--color-primary) 25%, var(--color-outline)); border-radius: var(--radius-hero); background: radial-gradient(circle at 100% 0, var(--color-review-container), transparent 18rem), linear-gradient(150deg, var(--color-primary-container), var(--color-surface) 70%); box-shadow: var(--shadow-hero); text-align: center; }
.welcome-art { position: relative; display: grid; place-items: center; width: 82px; height: 82px; border-radius: 25px; background: var(--color-surface); color: var(--color-primary); box-shadow: var(--shadow-medium); }
.welcome-art > .ui-icon { width: 41px; height: 41px; }
.welcome-art > span { position: absolute; display: grid; place-items: center; right: -7px; top: -7px; width: 34px; height: 34px; border-radius: 12px; background: var(--color-warning-container); color: var(--color-warning); }
.welcome-art > span .ui-icon { width: 18px; height: 18px; }
.welcome-lead { max-width: 33rem; color: var(--color-text-secondary); }
.welcome-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: 100%; gap: 6px; }
.welcome-steps span { display: grid; justify-items: center; gap: 4px; padding: 9px 5px; color: var(--color-text-secondary); font-size: .68rem; }
.welcome-steps strong { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--color-primary-container); color: var(--color-primary-strong); }

.notice { display: flex; align-items: start; gap: 10px; padding: 12px 13px; border: 1px solid var(--color-outline); border-radius: 13px; background: var(--color-surface); font-size: .84rem; }
.notice > span:first-child { display: grid; place-items: center; flex: 0 0 auto; width: 22px; height: 22px; border-radius: 7px; background: var(--color-info-container); color: var(--color-info); font-weight: 900; }
.notice strong { display: block; }
.notice div span { display: block; color: var(--color-text-secondary); }
.notice-warning { background: var(--color-warning-container); border-color: color-mix(in srgb, var(--color-warning) 35%, var(--color-outline)); }
.notice-warning > span:first-child { color: var(--color-warning); background: color-mix(in srgb, var(--color-surface) 45%, transparent); }
.notice-danger { background: var(--color-danger-container); border-color: color-mix(in srgb, var(--color-danger) 35%, var(--color-outline)); }
.notice-danger > span:first-child { color: var(--color-danger); background: color-mix(in srgb, var(--color-surface) 45%, transparent); }

.floating-action { position: fixed; z-index: 25; right: max(16px, calc((100vw - 720px) / 2 + 16px)); bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + 13px); min-height: 52px; padding: 12px 18px; border-radius: 17px; box-shadow: 0 12px 30px color-mix(in srgb, var(--color-primary) 30%, transparent); }
.bottom-nav { position: fixed; z-index: 30; left: 50%; bottom: 0; transform: translateX(-50%); display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); width: min(100%, 760px); min-height: calc(var(--nav-height) + env(safe-area-inset-bottom)); padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); border: 1px solid color-mix(in srgb, var(--color-outline) 80%, transparent); border-bottom: 0; border-radius: 20px 20px 0 0; background: color-mix(in srgb, var(--color-surface) 92%, transparent); backdrop-filter: blur(20px) saturate(1.25); box-shadow: 0 -10px 30px rgba(28, 43, 68, .1); }
.nav-button { display: grid; place-items: center; align-content: center; gap: 3px; min-width: 0; min-height: 58px; padding: 5px 2px; border: 0; background: transparent; border-radius: 13px; color: var(--color-text-secondary); font-size: .66rem; box-shadow: none; white-space: nowrap; }
.nav-icon { width: 21px; height: 21px; stroke-width: 2; }
.nav-button[aria-current="page"] { background: var(--color-primary-container); color: var(--color-primary-strong); font-weight: 850; }
.nav-button[aria-current="page"] .nav-icon { stroke-width: 2.4; }

dialog { width: min(calc(100% - 18px), 620px); max-height: min(90dvh, 860px); margin: auto; padding: 0; overflow: hidden; border: 1px solid var(--color-outline); border-radius: 23px; background: var(--color-surface); color: var(--color-text); box-shadow: 0 28px 90px rgba(0, 0, 0, .28); }
dialog::backdrop { background: var(--color-scrim); backdrop-filter: blur(3px); }
.dialog-shell { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; max-height: inherit; }
.dialog-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 15px 16px 11px; border-bottom: 1px solid var(--color-outline); background: color-mix(in srgb, var(--color-surface) 94%, var(--color-primary-container)); }
.dialog-body { display: grid; gap: 14px; padding: 16px; overflow-y: auto; overscroll-behavior: contain; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 8px; padding: 11px 16px calc(11px + env(safe-area-inset-bottom)); border-top: 1px solid var(--color-outline); background: color-mix(in srgb, var(--color-surface) 96%, var(--color-background)); }
.dialog-actions > button { flex: 1 1 130px; }
.form-grid { display: grid; gap: 12px; min-width: 0; }
.form-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-section { display: grid; gap: 13px; min-width: 0; padding: 14px; border: 1px solid var(--color-outline); border-radius: 16px; background: var(--color-surface); }
.form-section-numbering { background: color-mix(in srgb, var(--color-primary-container) 34%, var(--color-surface)); border-color: color-mix(in srgb, var(--color-primary) 22%, var(--color-outline)); }
.form-section-title { display: grid; grid-template-columns: 38px minmax(0, 1fr); align-items: center; gap: 10px; }
.form-section-title p { font-size: .74rem; }
.form-section-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--color-primary-container); color: var(--color-primary-strong); }
.form-section-icon .ui-icon { width: 19px; height: 19px; }
.form-section-advanced { padding: 0; overflow: hidden; }
.form-section-advanced > summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; padding: 12px 14px; cursor: pointer; list-style: none; }
.form-section-advanced > summary::-webkit-details-marker { display: none; }
.form-section-advanced > summary span { display: grid; }
.form-section-advanced > summary small { font-size: .7rem; font-weight: 400; }
.form-section-advanced[open] > summary .ui-icon { transform: rotate(180deg); }
.advanced-form-content { padding: 0 14px 14px; }
.check-row { grid-template-columns: 24px minmax(0, 1fr); align-items: center; color: var(--color-text); }
.check-row input { width: 22px; min-height: 22px; }
.weekday-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.weekday-choice { position: relative; }
.weekday-choice input { position: absolute; opacity: 0; pointer-events: none; }
.weekday-choice span { display: grid; place-items: center; min-height: 44px; border: 1px solid var(--color-outline); border-radius: 11px; background: var(--color-surface); color: var(--color-text-secondary); }
.weekday-choice input:checked + span { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); font-weight: 850; }
.weekday-choice input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); }
.radio-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.radio-choice { position: relative; }
.radio-choice input { position: absolute; opacity: 0; pointer-events: none; }
.radio-choice span { display: grid; place-items: center; min-height: 48px; padding: 8px; border: 1px solid var(--color-outline); border-radius: 13px; text-align: center; }
.radio-choice input:checked + span { background: var(--color-primary-container); border-color: var(--color-primary); color: var(--color-primary-strong); font-weight: 850; }

.detail-overview { display: grid; gap: 13px; padding: 15px; border: 1px solid color-mix(in srgb, var(--color-primary) 26%, var(--color-outline)); border-radius: 18px; background: linear-gradient(145deg, var(--color-primary-container), var(--color-surface) 76%); }
.detail-title { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.detail-title > div:first-child { display: grid; gap: 4px; min-width: 0; }
.detail-rate { display: grid; justify-items: end; flex: 0 0 auto; }
.detail-rate strong { font-size: 1.45rem; color: var(--color-primary-strong); }
.detail-rate span { color: var(--color-text-secondary); font-size: .64rem; }
.detail-counts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.detail-counts .metric { padding: 8px 6px; text-align: center; background: color-mix(in srgb, var(--color-surface) 72%, transparent); }
.detail-counts .metric strong { font-size: .82rem; }
.status-overview { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 5px; }
.status-count { display: grid; justify-items: center; gap: 3px; min-width: 0; padding: 8px 3px; border-radius: 12px; background: var(--color-surface-low); text-align: center; }
.status-count > span { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 8px; font-weight: 900; }
.status-count small, .status-count strong { display: block; font-size: .61rem; }
.status-solved > span, .status-perfect > span { background: var(--color-success-container); color: var(--color-success); }
.status-review > span { background: var(--color-review-container); color: var(--color-on-review); }
.status-weak > span { background: var(--color-warning-container); color: var(--color-warning); }
.status-not-started > span { background: var(--color-surface-high); color: var(--color-text-secondary); }
.number-list-head { display: grid; gap: 10px; }
.number-filters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 3px; scrollbar-width: none; }
.number-filters::-webkit-scrollbar { display: none; }
.number-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(82px, 1fr)); gap: 7px; }
.number-button { position: relative; display: grid; justify-items: start; gap: 2px; min-height: 68px; padding: 10px; overflow: hidden; text-align: left; background: var(--color-surface); }
.number-button::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--color-outline); }
.number-button.status-solved::before, .number-button.status-perfect::before { background: var(--color-success); }
.number-button.status-review::before { background: var(--color-review); }
.number-button.status-weak::before { background: var(--color-warning); }
.number-button strong { font-variant-numeric: tabular-nums; }
.number-button small { font-size: .68rem; }
.number-status-symbol { position: absolute; right: 7px; top: 7px; display: grid; place-items: center; width: 21px; height: 21px; border-radius: 7px; background: var(--color-surface-low); color: var(--color-text-secondary); font-size: .7rem; font-weight: 900; }
.status-solved .number-status-symbol, .status-perfect .number-status-symbol { background: var(--color-success-container); color: var(--color-success); }
.status-review .number-status-symbol { background: var(--color-review-container); color: var(--color-on-review); }
.status-weak .number-status-symbol { background: var(--color-warning-container); color: var(--color-warning); }
.bulk-panel { display: grid; gap: 10px; padding: 13px; border: 1px solid var(--color-outline); border-radius: 14px; background: var(--color-surface-low); }
.bulk-panel p { font-size: .74rem; }

.study-card { display: grid; gap: 16px; text-align: center; }
.study-number { display: grid; place-items: center; min-height: 170px; border-radius: 22px; background: linear-gradient(145deg, var(--color-primary-container), var(--color-review-container)); }
.study-number strong { font-size: clamp(4rem, 24vw, 7rem); line-height: .9; letter-spacing: -.07em; }
.study-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.study-actions button { min-height: 56px; font-weight: 800; }

.settings-card { gap: 12px; }
.settings-title { display: grid; grid-template-columns: 42px minmax(0, 1fr); align-items: center; gap: 10px; }
.settings-title-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: var(--color-primary-container); color: var(--color-primary-strong); }
.settings-title p { font-size: .72rem; }
.settings-data { border-color: color-mix(in srgb, var(--color-info) 28%, var(--color-outline)); }
.setting-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(112px, 42%); align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--color-outline); }
.setting-row:last-child { border-bottom: 0; }
.setting-copy strong { display: block; }
.setting-copy small { display: block; margin-top: 2px; }
.switch { position: relative; width: 54px; justify-self: end; }
.switch input { position: absolute; opacity: 0; }
.switch span { display: block; width: 54px; height: 32px; border-radius: 999px; background: var(--color-surface-high); transition: background .2s ease; }
.switch span::after { content: ""; display: block; width: 26px; height: 26px; margin: 3px; border-radius: 50%; background: var(--color-surface); box-shadow: 0 2px 7px rgba(0,0,0,.2); transition: transform .2s ease; }
.switch input:checked + span { background: var(--color-primary); }
.switch input:checked + span::after { transform: translateX(22px); }
.switch input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); outline-offset: 2px; }

.snackbar { position: fixed; z-index: 80; left: 50%; bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + 10px); transform: translateX(-50%); display: flex; align-items: center; justify-content: space-between; gap: 12px; width: min(calc(100% - 24px), 620px); min-height: 54px; padding: 10px 12px 10px 16px; border-radius: 15px; background: #182238; color: #f7f9ff; box-shadow: 0 14px 40px rgba(0,0,0,.3); }
.snackbar button { min-height: 38px; border: 0; background: #e7efff; color: #173a7a; font-weight: 850; }
.update-banner, .offline-banner { position: sticky; top: calc(62px + env(safe-area-inset-top)); z-index: 19; width: min(calc(100% - 24px), 720px); margin: 0 auto 8px; padding: 10px 12px; border-radius: 13px; background: var(--color-warning-container); color: var(--color-warning); border: 1px solid color-mix(in srgb, var(--color-warning) 35%, var(--color-outline)); font-size: .82rem; }
.offline-banner { background: var(--color-info-container); color: var(--color-info); border-color: color-mix(in srgb, var(--color-info) 32%, var(--color-outline)); }
.update-banner { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.error-boundary { display: grid; gap: 14px; width: min(calc(100% - 28px), 620px); margin: 8vh auto; padding: 22px; border: 1px solid var(--color-danger); border-radius: 22px; background: var(--color-surface); }

.action-row { display: flex; flex-wrap: wrap; gap: 8px; }
.action-row > button { flex: 1 1 120px; }

@media (min-width: 620px) {
  .metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .book-list.two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .calendar-day { min-height: 88px; }
  .review-spotlight { grid-template-columns: 48px minmax(0, 1fr) auto; }
  .review-spotlight .review-action { grid-column: auto; min-width: 158px; }
}

@media (max-width: 480px) {
  .toolbar { grid-template-columns: 1fr; }
  .bulk-panel .toolbar { grid-template-columns: 1fr; }
}

@media (max-width: 390px) {
  .main-content { width: min(100% - 16px, 720px); }
  .app-header { padding-left: 10px; padding-right: 10px; }
  .save-state strong { max-width: 70px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .card { padding: 13px; }
  .today-hero { padding: 16px; }
  .form-grid.two { grid-template-columns: 1fr; }
  .bottom-nav { padding-left: 3px; padding-right: 3px; }
  .nav-button { font-size: .6rem; }
  .nav-icon { width: 20px; height: 20px; }
  .hero-actions { grid-template-columns: 1fr; }
  .hero-actions .hero-secondary { min-height: 46px; }
  .hero-counts > div { padding-inline: 6px; }
  .hero-counts strong { font-size: .75rem; }
  .calendar-day { min-height: 64px; padding: 4px; border-radius: 9px; }
  .calendar-day .day-amount { font-size: .53rem; }
  .review-metrics > div { padding-inline: 3px; }
  .mission-main-actions, .book-actions { grid-template-columns: 1fr; }
  .status-overview { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .detail-counts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-height: 520px) {
  .floating-action { display: none; }
  .bottom-nav { position: sticky; transform: none; left: auto; margin-top: 12px; }
  .app-shell { padding-bottom: env(safe-area-inset-bottom); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (display-mode: standalone) {
  .app-header { padding-top: calc(10px + env(safe-area-inset-top)); }
}