:root {
  color-scheme: light;
  --font-text: "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI Variable Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "SF Pro Display", "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-arabic: "Noto Naskh Arabic", "Traditional Arabic", "Geeza Pro", Georgia, serif;
  --font-reading: Georgia, "Times New Roman", Times, serif;
  --text-scale: 1;
  --paper: #f8f8f8;
  --ink: #22282d;
  --muted: #68737d;
  --accent: #74808c;
  --accent-dark: #5e6b77;
  --line: rgba(116, 128, 140, .22);
  --surface: #fff;
  --on-accent: #fff;
  --topbar: rgba(248, 248, 248, .9);
  --shadow: rgba(39, 48, 56, .035);
  --topbar-height: 62px;
  --safe-top: env(safe-area-inset-top, 0px);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #1e252b;
  --ink: #f8f8f8;
  --muted: #b6c0c8;
  --accent: #8f9ba6;
  --accent-dark: #74808c;
  --line: rgba(248, 248, 248, .14);
  --surface: #293139;
  --on-accent: #fff;
  --topbar: rgba(30, 37, 43, .92);
  --shadow: rgba(0, 0, 0, .16);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: calc(16px * var(--text-scale));
}

body {
  margin: 0;
  padding-top: 62px;
  padding-top: calc(var(--topbar-height) + var(--safe-top));
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 1rem;
  line-height: 1.64;
  letter-spacing: -.004em;
  font-kerning: normal;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button { font: inherit; }

.topbar {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
  height: calc(var(--topbar-height) + var(--safe-top));
  padding: 0 18px;
  padding: var(--safe-top) max(18px, env(safe-area-inset-right, 0px)) 0 max(18px, env(safe-area-inset-left, 0px));
  background: var(--topbar);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.brand-mark {
  display: block;
  width: 43px;
  height: 36px;
  flex: 0 0 auto;
  object-fit: contain;
  transition: filter .25s ease;
}

.brand span {
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: -.02em;
  white-space: nowrap;
}

html[data-theme="dark"] .brand-mark { filter: invert(1) brightness(1.12); }

.top-actions { display: flex; align-items: center; gap: 14px; }

.text-button {
  padding: 7px 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: .9rem;
  cursor: pointer;
}

main { width: min(100%, 720px); margin: 0 auto; padding: 0 18px 64px; }

.intro { padding: 36px 0 26px; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 560px;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -.052em;
  line-height: .96;
}

.mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr 1.45fr;
  gap: 3px;
  width: min(100%, 450px);
  margin-top: 26px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.mode {
  min-height: 44px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 9px;
  font-size: .9rem;
  cursor: pointer;
}

.mode.active { color: var(--on-accent); background: var(--accent); }
.mode span { font-size: .75em; opacity: .76; }

.progress-wrap { margin-top: 24px; }

.progress-copy {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: .875rem;
}

.progress-track { height: 3px; overflow: hidden; background: var(--line); }
.progress-bar { width: 0; height: 100%; background: var(--accent); transition: width .3s ease; }

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

.card {
  padding: clamp(18px, 3.5vw, 28px);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 8px 26px var(--shadow);
}

.card.done { border-color: var(--accent); }
.card.done .counter { background: var(--accent-dark); }

.card-head { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 8px; }

.card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 7px 10px;
}

.learn-toggle {
  padding: 6px 10px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 650;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.learn-toggle:active { transform: scale(.96); }
.learn-toggle.selected { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }

.number, .repetition {
  color: var(--accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.number { display: none; }
.name { margin: 0; font-size: clamp(1.05rem, 4vw, 1.2rem); font-weight: 700; letter-spacing: -.018em; line-height: 1.3; }

.arabic {
  margin: 18px 0 14px;
  color: var(--ink);
  font-family: var(--font-arabic);
  font-size: clamp(1.65rem, 5.6vw, 2.15rem);
  line-height: 1.66;
  text-align: right;
}

.transliteration { margin: 0; color: var(--muted); font-family: var(--font-reading); font-size: .95rem; font-style: italic; letter-spacing: -.004em; line-height: 1.55; }
.transliteration-details { margin: 10px 0 0; }
.transliteration-details summary {
  color: var(--accent);
  font-size: .875rem;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
}
.transliteration-details summary::-webkit-details-marker { display: none; }
.transliteration-details p { margin: 9px 0 0; }
.divider { width: 34px; height: 1px; margin: 15px 0; background: var(--accent); }
.translation { margin: 0; font-family: var(--font-reading); font-size: 1rem; letter-spacing: -.006em; line-height: 1.56; }

.surah-items { display: grid; gap: 18px; margin-top: 18px; }
.surah { padding-top: 17px; border-top: 1px solid var(--line); }
.surah:first-child { padding-top: 0; border-top: 0; }
.surah h3 { margin: 0 0 10px; color: var(--accent); font-size: .8125rem; letter-spacing: .09em; text-transform: uppercase; }
.surah .arabic { margin: 0 0 12px; }
.surah p { margin: 0; }
.surah .surah-trans { margin-top: 7px; color: var(--ink); font-family: var(--font-reading); font-size: 1rem; line-height: 1.56; }

.evidence { margin-top: 18px; padding-top: 15px; border-top: 1px solid var(--line); }
.evidence summary { color: var(--accent); font-size: .9375rem; font-weight: 700; cursor: pointer; }
.evidence p { margin: 10px 0 0; }
.evidence .benefit { color: var(--ink); }
.evidence .source { color: var(--muted); font-size: .8125rem; line-height: 1.55; }

.audio-box {
  display: grid;
  gap: 9px;
  margin-top: 18px;
  padding: 14px 0 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line);
}

.audio-status { color: var(--muted); font-size: .8125rem; line-height: 1.42; }

.audio-controls {
  display: grid;
  grid-template-columns: 42px auto minmax(80px, 1fr) auto;
  align-items: center;
  gap: 10px;
}

.audio-play {
  width: 42px;
  height: 44px;
  padding: 0;
  color: var(--accent);
  background: transparent;
  border: 0;
  font-family: var(--font-text);
  font-size: 1.65rem;
  line-height: 1;
  cursor: pointer;
  transition: color .2s ease, transform .15s ease;
}

.audio-play:active { transform: scale(.95); }
.audio-play.playing { color: var(--accent-dark); }

.audio-current, .audio-duration {
  font-size: .9rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.audio-current { color: var(--accent); }
.audio-duration { color: var(--ink); }

.audio-seek {
  --audio-progress: 0%;
  width: 100%;
  height: 28px;
  margin: 0;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
}

.audio-seek::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(to right, var(--accent) 0 var(--audio-progress), var(--line) var(--audio-progress) 100%);
}
.audio-seek::-webkit-slider-thumb {
  width: 15px;
  height: 15px;
  margin-top: -6.5px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--accent);
  border: 0;
  border-radius: 50%;
}
.audio-seek::-moz-range-track { height: 2px; background: var(--line); }
.audio-seek::-moz-range-progress { height: 2px; background: var(--accent); }
.audio-seek::-moz-range-thumb { width: 15px; height: 15px; background: var(--accent); border: 0; border-radius: 50%; }
.audio-seek:disabled { cursor: default; opacity: .6; }

.audio-options {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 14px;
}
.audio-options .audio-status { margin-right: auto; }

.audio-download {
  padding: 6px 0;
  color: var(--accent);
  background: transparent;
  border: 0;
  font-size: .8125rem;
  font-weight: 700;
  cursor: pointer;
}

.audio-download:disabled { color: var(--muted); cursor: default; opacity: .72; }

.audio-box.audio-error { border-color: #a86464; }
.audio-box.audio-error .audio-status { color: #a86464; }

.memory-step {
  display: none;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 54px;
  margin-top: 18px;
  padding: 9px 14px;
  color: var(--ink);
  text-align: left;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 13px;
  cursor: pointer;
}

.memory-step span { color: var(--muted); font-size: .8125rem; }
.memory-step strong { font-size: .9rem; font-weight: 650; }
body.memorize-mode .memory-step { display: grid; }

.memory-word {
  border-radius: .18em;
  transition: color .22s ease, background-color .22s ease;
}

body.memorize-mode .memory-word.masked {
  color: transparent;
  background: rgba(116, 128, 140, .2);
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  text-shadow: none;
  user-select: none;
}

.counter {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  width: 100%;
  min-height: 60px;
  margin-top: 24px;
  padding: 9px 16px;
  color: var(--on-accent);
  text-align: left;
  background: var(--accent);
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease;
  touch-action: manipulation;
}

.counter:active { transform: scale(.985); }
.counter:focus-visible, .mode:focus-visible, .text-button:focus-visible, .settings button:focus-visible, .settings input:focus-visible, .audio-play:focus-visible, .audio-seek:focus-visible, .transliteration-details summary:focus-visible { outline: 3px solid rgba(116, 128, 140, .45); outline-offset: 3px; }
.counter-value { font-size: 1.2rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.counter-label { opacity: .88; font-size: .875rem; }

.next-card {
  display: none;
  width: 100%;
  min-height: 54px;
  margin-top: 10px;
  color: var(--ink);
  background: transparent;
  border: 2px solid var(--line);
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

footer {
  width: min(100% - 36px, 684px);
  margin: 0 auto;
  padding: 24px 0 max(36px, env(safe-area-inset-bottom));
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: .8125rem;
}

footer p { margin: 3px 0; }

.settings {
  width: min(calc(100% - 48px), 370px);
  max-height: calc(100vh - 76px);
  max-height: calc(100dvh - 76px);
  margin: auto;
  padding: 0;
  overflow: auto;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 17px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .22);
  overscroll-behavior: contain;
  scrollbar-width: none;
}

.settings::-webkit-scrollbar { display: none; }
.settings::backdrop { background: rgba(30, 37, 43, .56); backdrop-filter: blur(10px); }
.settings form { padding: 0 14px 10px; }
.settings-head,
.settings-group {
  overflow: visible;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.settings-head { display: flex; min-height: 50px; align-items: center; justify-content: space-between; gap: 12px; margin: 0; padding: 0; }
.settings-head h2 { margin: 0; font-family: var(--font-display); font-size: 1.05rem; font-weight: 650; letter-spacing: -.025em; }
.settings-head h2:focus { outline: 0; }
.close-settings { display: grid; width: 32px; height: 32px; padding: 0; place-items: center; color: var(--muted); appearance: none; background: transparent; border: 0; border-radius: 0; box-shadow: none; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.close-settings svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.close-settings:hover { color: var(--ink); background: transparent; }
.close-settings:focus,
.close-settings:focus-visible { outline: 0; background: transparent; box-shadow: none; }
.close-settings:active { opacity: .55; }

.setting-row, .setting-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 43px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.settings-group { margin: 0; }
.settings-group > :first-child { border-top: 1px solid var(--line); }

.setting-row strong, .setting-row span { display: block; }
.setting-row span { color: var(--muted); font-size: .8125rem; }
.setting-row strong, .setting-toggle > span { font-size: .9375rem; line-height: 1.35; }
.size-controls { display: flex; gap: 0; overflow: hidden; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; }
.size-controls button {
  width: 39px;
  height: 31px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-radius: 0;
  font-size: .9375rem;
  cursor: pointer;
}
.size-controls button + button { border-left: 1px solid var(--line); }

.setting-toggle { cursor: pointer; }
.setting-toggle input {
  position: relative;
  width: 36px;
  height: 21px;
  flex: 0 0 auto;
  appearance: none;
  background: rgba(116, 128, 140, .28);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color .2s ease;
}
.setting-toggle input::before {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 15px;
  height: 15px;
  content: "";
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(25, 31, 36, .2);
  transition: transform .2s ease;
}
.setting-toggle input:checked { background: var(--accent); }
.setting-toggle input:checked::before { transform: translateX(15px); }
.setting-toggle input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.setting-toggle input:disabled { cursor: not-allowed; opacity: .45; }
.setting-copy > span, .setting-copy > small { display: block; }
.setting-copy small { margin-top: 2px; color: var(--muted); font-size: .8125rem; font-weight: 400; }

.settings-utilities {
  margin-top: 0;
  padding: 0;
}

.settings-utilities .utility-row { border-top: 1px solid var(--line); }

.utility-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-height: 43px;
  padding: 5px 0;
  color: var(--ink);
  text-align: left;
  background: transparent;
  border: 0;
}

.utility-row + .utility-row { border-top: 1px solid var(--line); }
.utility-copy { min-width: 0; }
.utility-copy strong,
.utility-copy small { display: block; }
.utility-copy strong { font-size: .8125rem; font-weight: 650; line-height: 1.3; }
.utility-copy small { margin-top: 1px; color: var(--muted); font-size: .75rem; line-height: 1.35; }
.utility-status { max-width: 48%; color: var(--accent); font-size: .6875rem; font-weight: 700; line-height: 1.3; text-align: right; }
.settings-install { cursor: pointer; }
.utility-action {
  flex: 0 0 auto;
  padding: 4px 8px;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1;
}

.install-card {
  position: fixed;
  z-index: 40;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  left: max(14px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto 32px;
  align-items: center;
  gap: 11px;
  width: min(calc(100% - 28px), 620px);
  margin-inline: auto;
  padding: 12px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 17px;
  box-shadow: 0 18px 58px rgba(25, 31, 36, .22);
}

.install-card[hidden] { display: none; }
.install-card img { width: 42px; height: 36px; object-fit: contain; }
.install-card div { min-width: 0; }
.install-card strong, .install-card span { display: block; }
.install-card strong { font-size: .9rem; line-height: 1.3; }
.install-card span { overflow: hidden; color: var(--muted); font-size: .75rem; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.install-confirm {
  min-height: 40px;
  padding: 0 13px;
  color: var(--on-accent);
  background: var(--accent);
  border: 0;
  border-radius: 11px;
  font-size: .8125rem;
  font-weight: 700;
  cursor: pointer;
}
.install-dismiss { width: 32px; height: 40px; padding: 0; color: var(--muted); background: transparent; border: 0; font-size: 1.5rem; cursor: pointer; }

.install-guide {
  width: min(calc(100% - 28px), 460px);
  margin: auto;
  padding: 22px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .22);
}
.install-guide::backdrop { background: rgba(20, 25, 29, .55); backdrop-filter: blur(4px); }
.install-guide-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.install-guide h2 { margin: 0; font-size: 1.25rem; letter-spacing: -.03em; }
.install-guide-head button { padding: 7px 0; color: var(--muted); background: transparent; border: 0; cursor: pointer; }
.install-guide ol { margin: 20px 0 0; padding-left: 1.35rem; }
.install-guide li { margin: 11px 0; padding-left: 5px; }

.network-toast,
.update-toast {
  position: fixed;
  z-index: 38;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  left: max(14px, env(safe-area-inset-left));
  width: fit-content;
  max-width: calc(100% - 28px);
  margin-inline: auto;
  padding: 10px 14px;
  color: var(--on-accent);
  background: var(--accent-dark);
  border-radius: 999px;
  box-shadow: 0 12px 38px rgba(25, 31, 36, .2);
  font-size: .8125rem;
  font-weight: 650;
}
.network-toast[hidden], .update-toast[hidden] { display: none; }
.update-toast { display: flex; align-items: center; gap: 14px; }
.update-toast button { padding: 0; color: #fff; background: transparent; border: 0; font-weight: 800; cursor: pointer; }

body.hide-translation .translation,
body.hide-translation .surah-trans,
body.hide-translation .card > .divider { display: none; }

html[data-theme="light"] body.easy-mode {
  --ink: #111619;
  --muted: #3f4a53;
  --line: rgba(61, 74, 84, .38);
}

body.easy-mode { font-size: 1.0625rem; }
body.easy-mode .card { padding: clamp(22px, 4.5vw, 36px); border-width: 2px; }
body.easy-mode .arabic { font-size: clamp(2.25rem, 7.2vw, 3rem); line-height: 1.8; }
body.easy-mode .translation { font-size: 1.3rem; line-height: 1.68; }
body.easy-mode .transliteration { font-size: 1.2rem; line-height: 1.7; }
body.easy-mode .counter { min-height: 68px; }
body.easy-mode .counter-value { font-size: 1.35rem; }
body.easy-mode .counter-label { font-size: .9375rem; }
body.easy-mode .next-card { display: block; }
body.easy-mode .setting-toggle,
body.easy-mode .setting-row { min-height: 48px; }

.empty-learning {
  padding: 34px 22px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
}
.empty-learning h2 { margin: 0 0 8px; font-size: 1.2rem; }
.empty-learning p { max-width: 440px; margin: 0 auto; color: var(--muted); }

.focus-nav {
  position: sticky;
  z-index: 12;
  bottom: max(12px, env(safe-area-inset-bottom));
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  width: min(100%, 520px);
  margin: 14px auto 0;
  padding: 7px;
  background: var(--topbar);
  border: 1px solid var(--line);
  border-radius: 15px;
  box-shadow: 0 14px 42px rgba(24, 30, 35, .16);
  backdrop-filter: blur(16px);
}
.focus-nav:not([hidden]) { display: grid; }
.focus-nav button {
  min-height: 46px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 11px;
  font-weight: 650;
  cursor: pointer;
}
.focus-nav button:last-child { color: var(--on-accent); background: var(--accent); border-color: var(--accent); }
.focus-nav button:disabled { opacity: .38; cursor: default; }
.focus-nav span { min-width: 56px; color: var(--muted); text-align: center; font-size: .8125rem; font-variant-numeric: tabular-nums; }

body.focus-mode .card { scroll-margin-top: calc(var(--topbar-height) + var(--safe-top) + 26px); }
body.focus-mode .next-card { display: none; }

@media (min-width: 720px) {
  .topbar { padding-inline: 30px; }
  .intro { padding-top: 48px; }
}

@media (max-width: 540px) {
  .card { border-radius: 18px; }
  .audio-controls { grid-template-columns: 38px auto minmax(72px, 1fr) auto; gap: 8px; }
  .audio-play { width: 38px; }
  .brand span { display: none; }
  .top-actions { gap: 11px; }
  .install-action { display: none; }
  .install-card { grid-template-columns: 38px minmax(0, 1fr) auto 28px; gap: 9px; padding: 10px; }
  .install-card img { width: 38px; }
  .install-confirm { padding-inline: 11px; }
  .settings { width: min(calc(100% - 40px), 370px); max-height: calc(100vh - 58px); max-height: calc(100dvh - 58px); }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

/* Motion system */
body::before {
  position: fixed;
  z-index: -1;
  inset: -20vh -20vw auto;
  height: 52vh;
  content: "";
  pointer-events: none;
  background: radial-gradient(circle at 50% 0%, rgba(116, 128, 140, .12), transparent 66%);
}

.topbar { transition: background-color .35s ease, border-color .35s ease; }

.motion-ready .intro > * {
  animation: intro-reveal .68s cubic-bezier(.22, 1, .36, 1) both;
}
.motion-ready .intro > :nth-child(2) { animation-delay: .06s; }
.motion-ready .intro > :nth-child(3) { animation-delay: .12s; }
.motion-ready .intro > :nth-child(4) { animation-delay: .18s; }

.mode { transition: color .25s ease, background-color .3s ease, transform .2s ease; }
.mode:active { transform: scale(.97); }

.progress-bar {
  position: relative;
  overflow: hidden;
  transition: width .65s cubic-bezier(.22, 1, .36, 1);
}
.progress-bar::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent);
  transform: translateX(-110%);
}
.progress-bar.progressing::after { animation: progress-glint .6s ease-out; }
.progress-copy.progressing { animation: progress-pop .38s cubic-bezier(.2, .9, .3, 1.25); }

.card {
  transform-origin: 50% 12%;
  transition: opacity .65s ease, transform .7s cubic-bezier(.22, 1, .36, 1), border-color .3s ease, box-shadow .3s ease;
}
.motion-ready .card.motion-pending {
  opacity: 0;
  transform: translateY(26px) scale(.985);
}
.motion-ready .card.motion-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.card.just-completed { animation: card-complete .72s cubic-bezier(.22, 1, .36, 1); }

.evidence summary::after {
  display: inline-block;
  margin-left: 8px;
  content: "↓";
  transition: transform .28s ease;
}
.evidence[open] summary::after { transform: rotate(180deg); }
.evidence[open] p { animation: evidence-reveal .38s cubic-bezier(.22, 1, .36, 1) both; }

.transliteration-details summary::after {
  display: inline-block;
  margin-left: 8px;
  content: "↓";
  transition: transform .28s ease;
}
.transliteration-details[open] summary::after { transform: rotate(180deg); }
.transliteration-details[open] p { animation: evidence-reveal .38s cubic-bezier(.22, 1, .36, 1) both; }

.counter { position: relative; overflow: hidden; }
.counter::after {
  position: absolute;
  left: 26px;
  top: 50%;
  width: 28px;
  height: 28px;
  content: "";
  pointer-events: none;
  background: rgba(255, 255, 255, .35);
  border-radius: 50%;
  opacity: 0;
  transform: translateY(-50%) scale(0);
}
.counter.counted::after { animation: counter-ripple .46s ease-out; }
.counter.counted .counter-value { animation: number-pop .34s cubic-bezier(.2, .9, .3, 1.35); }

.settings[open] { animation: dialog-in .32s cubic-bezier(.22, 1, .36, 1); }
.settings[open]::backdrop { animation: backdrop-in .3s ease-out; }

@media (hover: hover) {
  .card:hover { transform: translateY(-2px); box-shadow: 0 18px 46px rgba(39, 48, 56, .075); }
  html[data-theme="dark"] .card:hover { box-shadow: 0 18px 46px rgba(0, 0, 0, .24); }
}

@keyframes intro-reveal {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes progress-glint { to { transform: translateX(110%); } }
@keyframes progress-pop { 50% { transform: translateY(-2px); } }
@keyframes counter-ripple {
  0% { opacity: .65; transform: translateY(-50%) scale(0); }
  100% { opacity: 0; transform: translateY(-50%) scale(18); }
}
@keyframes number-pop { 50% { transform: scale(1.14); } }
@keyframes card-complete {
  0%, 100% { box-shadow: 0 10px 34px var(--shadow); }
  42% { box-shadow: 0 18px 52px rgba(116, 128, 140, .28); }
}
@keyframes evidence-reveal {
  from { opacity: 0; transform: translateY(-7px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes dialog-in {
  from { opacity: 0; transform: translateY(18px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes backdrop-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
  .motion-ready .card.motion-pending { opacity: 1; transform: none; }
}