/* ================================================================== */
/*  NeoLinguo — landing styles                                         */
/*  Dark, editorial, premium. Chinese-first. Minimal palette.          */
/* ================================================================== */

:root {
  --bg:        #08090a;
  --bg-2:      #0b0c0e;
  --bg-3:      #101113;
  --line:      rgba(255, 255, 255, .08);
  --line-2:    rgba(255, 255, 255, .16);
  --ink:       #f1f3f5;
  --ink-2:     rgba(241, 243, 245, .78);
  --ink-3:     rgba(241, 243, 245, .56);
  --ink-4:     rgba(241, 243, 245, .34);
  --accent:    #62f0b8;
  --accent-2:  #7af3c4;
  --accent-ink:#06231a;
  --warm:      #f5b06a;
  --radius:    14px;
  --radius-lg: 22px;
  --maxw:      1180px;
  --pad:       clamp(20px, 4vw, 40px);
  --shadow-1:  0 1px 0 rgba(255,255,255,.04) inset, 0 30px 60px -30px rgba(0,0,0,.6);
  --font: ui-sans-serif, system-ui, -apple-system, "SF Pro Display", "Segoe UI",
          "Inter", Helvetica, Arial, sans-serif;
  --font-zh: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
             "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html, body { background: var(--bg); color: var(--ink); }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11", "ss03";
  overflow-x: hidden;
}

[lang="zh"] { font-family: var(--font-zh); }

/* Ambient glow on the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(60% 50% at 18% -10%, rgba(98, 240, 184, .07), transparent 60%),
    radial-gradient(40% 30% at 90% 0%, rgba(122, 132, 255, .04), transparent 60%);
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--bg);
  padding: 8px 12px; border-radius: 6px;
}
.skip-link:focus { left: 12px; top: 12px; z-index: 100; }

::selection { background: var(--accent); color: var(--accent-ink); }

/* ------------------------------------------------------------------ */
/*  Buttons                                                            */
/* ------------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.005em;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn--primary:hover { background: var(--accent-2); color: var(--accent-ink); }
.btn--ghost {
  background: rgba(255,255,255,.03);
  border-color: var(--line);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--line-2); background: rgba(255,255,255,.06); }
.btn--lg { padding: 14px 22px; font-size: 15px; }

/* ------------------------------------------------------------------ */
/*  Nav                                                                */
/* ------------------------------------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  background: rgba(8, 9, 10, .7);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(8, 9, 10, .88);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--pad);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600;
  letter-spacing: -0.015em;
  font-size: 15px;
}
.brand__mark {
  width: 22px; height: 22px;
  border-radius: 7px;
  background: linear-gradient(160deg, rgba(98,240,184,.25), rgba(98,240,184,.05));
  border: 1px solid rgba(98,240,184,.35);
  display: inline-grid; place-items: center;
  position: relative;
  overflow: hidden;
}
.brand__mark::after {
  content: "";
  position: absolute; inset: -50%;
  background: conic-gradient(from 0deg, transparent, rgba(98,240,184,.4), transparent 30%);
  animation: spin 8s linear infinite;
}
.brand__dot {
  position: relative;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  z-index: 1;
}
@keyframes spin { to { transform: rotate(360deg); } }

.brand__word { font-weight: 600; }
.nav__links {
  display: flex; gap: 26px;
  justify-self: center;
  font-size: 14px;
  color: var(--ink-2);
}
.nav__links a {
  position: relative;
  padding: 6px 2px;
  transition: color .15s ease;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a.is-active { color: var(--ink); }
.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.nav__cta {
  display: flex;
  gap: 10px;
  justify-self: end;
}

@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__inner { grid-template-columns: auto 1fr; }
  .nav__cta { justify-self: end; }
  .nav__cta .btn { padding-inline: 18px; }
  .nav__cta .btn--ghost { display: none; }
}

/* ------------------------------------------------------------------ */
/*  Type system                                                        */
/* ------------------------------------------------------------------ */
.display {
  font-size: clamp(44px, 7.4vw, 86px);
  line-height: 1.03;
  letter-spacing: -0.04em;
  font-weight: 600;
  margin: 0;
  color: var(--ink);
}
.display--sm { font-size: clamp(34px, 5.6vw, 64px); }
.display__accent {
  background: linear-gradient(90deg, var(--accent) 0%, #d6f8ec 60%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 9s ease-in-out infinite;
}
@keyframes shine {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.h2 {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 18px;
  max-width: 24ch;
}
.h2--sm { font-size: clamp(24px, 3.2vw, 34px); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 28px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.025);
}
.eyebrow__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(.85); }
}
.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin: 0 0 14px;
}
.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 60ch;
  margin: 0;
}
.lede--center { margin-left: auto; margin-right: auto; text-align: center; }
.sub {
  font-size: clamp(16px, 1.45vw, 18px);
  color: var(--ink-2);
  max-width: 62ch;
  margin: 0;
  line-height: 1.6;
}

/* ------------------------------------------------------------------ */
/*  Hero                                                               */
/* ------------------------------------------------------------------ */
.hero {
  position: relative;
  padding: clamp(88px, 15vh, 160px) var(--pad) clamp(82px, 13vh, 138px);
  overflow: hidden;
  isolation: isolate;
}
.hero::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -60%;
  width: 120vw;
  height: 120vw;
  max-width: 1400px;
  max-height: 1400px;
  transform: translateX(-50%);
  background: radial-gradient(circle at center, rgba(98,240,184,.10), transparent 55%);
  filter: blur(20px);
  z-index: -1;
}
.hero__inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  z-index: 2;
  display: grid;
  gap: 30px;
}
.hero .eyebrow { margin-bottom: 4px; }
.hero .display { max-width: 14.5ch; }
.hero .lede { max-width: 50ch; }
.hero__cta {
  margin: 10px 0 46px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero__stats {
  margin: 0;
  padding: 30px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 28px;
  max-width: 780px;
}
.hero__stats > div { display: grid; gap: 8px; }
.hero__stats dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.hero__stats dd {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 28px);
  letter-spacing: -0.02em;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 640px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

/* word atom field — sparse, corner-only */
.hero__field {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.atom {
  position: absolute;
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%);
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(20, 22, 24, .55);
  border: 1px solid var(--line);
  color: var(--ink-2);
  white-space: nowrap;
  animation: float 10s ease-in-out infinite;
  animation-delay: var(--d);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: inline-grid;
  gap: 2px;
  opacity: .55;
  transition: opacity .4s ease;
}
.atom b {
  font-family: var(--font-zh);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0;
  line-height: 1.1;
}
.atom small {
  color: var(--ink-3);
  font-size: 11px;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.atom--accent {
  border-color: rgba(98,240,184,.32);
  background: rgba(98,240,184,.08);
  box-shadow: 0 0 32px rgba(98,240,184,.18);
}
.atom--accent b { color: var(--accent); }
@keyframes float {
  0%, 100% { transform: translate(-50%, -50%); }
  50%      { transform: translate(-50%, calc(-50% - 8px)); }
}

@media (max-width: 1100px) {
  .atom { opacity: .35; }
}
@media (max-width: 820px) {
  .hero__field { display: none; }
}

/* ------------------------------------------------------------------ */
/*  Section frame                                                      */
/* ------------------------------------------------------------------ */
.section {
  position: relative;
  padding: clamp(80px, 12vh, 140px) var(--pad);
  border-top: 1px solid var(--line);
}
.section--alt {
  background:
    linear-gradient(180deg, rgba(255,255,255,.018), rgba(255,255,255,0)),
    var(--bg-2);
}
.section__head {
  max-width: var(--maxw);
  margin: 0 auto clamp(40px, 6vw, 64px);
}
.section__head--left { max-width: var(--maxw); }
.section--alt .kicker { color: var(--accent-2); }

/* ------------------------------------------------------------------ */
/*  Memos / capture                                                    */
/* ------------------------------------------------------------------ */
.capture {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 28px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .capture { grid-template-columns: 1fr; }
}

.memo {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 80% at 10% 0%, rgba(98,240,184,.09), transparent 60%),
    rgba(255,255,255,.025);
  padding: 26px;
  display: grid;
  align-content: start;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.memo__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.memo__lang {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.memo__rec {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.memo__rec i {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 1.4s ease-in-out infinite;
}
.memo__line {
  font-family: var(--font-zh);
  margin: 6px 0 0;
  font-size: clamp(22px, 2.6vw, 28px);
  letter-spacing: 0;
  color: var(--ink);
  line-height: 1.4;
}
.memo__pinyin {
  margin: 0;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.01em;
}
.memo__trans {
  margin: 0;
  font-size: 14px;
  color: var(--ink-3);
}
.memo__wave {
  display: flex;
  gap: 3px;
  align-items: center;
  height: 32px;
  margin-top: 8px;
}
.memo__wave span {
  flex: 1;
  background: linear-gradient(180deg, rgba(255,255,255,.3), rgba(255,255,255,.08));
  border-radius: 2px;
  animation: storywave 2.4s ease-in-out infinite;
}
.memo__wave span:nth-child(odd) { animation-delay: .15s; }
.memo__wave span:nth-child(3n)  { animation-delay: .3s; }
.memo__wave span:nth-child(5n)  { background: linear-gradient(180deg, var(--accent), rgba(98,240,184,.35)); }
.memo.is-playing .memo__wave span { animation-duration: .58s; }
.memo__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.memo__status {
  min-height: 18px;
  margin: 0;
  font-size: 12.5px;
  color: var(--ink-3);
}

.extract {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.01));
  padding: clamp(18px, 2vw, 22px);
  display: grid;
  gap: 12px;
  box-shadow: var(--shadow-1);
}
.extract__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 0 4px 6px;
  border-bottom: 1px solid var(--line);
}
.extract__title {
  margin: 0;
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
  letter-spacing: -0.005em;
}
.extract__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.extract__head--result { padding-top: 8px; }
.process {
  list-style: none;
  margin: 0;
  padding: 4px;
  display: grid;
  gap: 8px;
}
.process li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 12px;
  color: var(--ink-3);
  background: rgba(255,255,255,.018);
  border: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.process li::before {
  content: attr(data-step);
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  border: 1px solid var(--line);
}
.extract[data-step="1"] .process li:nth-child(1),
.extract[data-step="2"] .process li:nth-child(2),
.extract[data-step="3"] .process li:nth-child(3) {
  color: var(--ink);
  background: rgba(98,240,184,.07);
  border-color: rgba(98,240,184,.24);
}
.extract[data-step="1"] .process li:nth-child(1)::before,
.extract[data-step="2"] .process li:nth-child(2)::before,
.extract[data-step="3"] .process li:nth-child(3)::before {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: transparent;
}
.extract__result {
  display: none;
  opacity: 0;
  transform: translateY(8px);
}
.extract[data-state="ready"] .extract__result {
  display: grid;
  gap: 12px;
  opacity: 1;
  transform: translateY(0);
  animation: memoResultIn .32s ease-out;
}
.extract[data-state="ready"] > .extract__head,
.extract[data-state="ready"] > .process { display: none; }
@keyframes memoResultIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.extract__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.xitem {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.02);
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease;
}
.xitem:hover { background: rgba(255,255,255,.035); border-color: var(--line); }
.xitem__main {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 10px 14px;
  align-items: baseline;
  min-width: 0;
}
.xitem__main b {
  font-family: var(--font-zh);
  font-weight: 500;
  font-size: 22px;
  color: var(--ink);
  line-height: 1;
  letter-spacing: 0;
}
.xitem--sentence .xitem__main b { font-size: 17px; }
.xitem__pinyin {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.01em;
}
.xitem__gloss {
  color: var(--ink-3);
  font-size: 13px;
  grid-column: 1 / -1;
}
.xitem__audio {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid; place-items: center;
  background: rgba(255,255,255,.02);
}
.xitem__actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
@media (max-width: 640px) {
  .xitem { grid-template-columns: 1fr; gap: 10px; }
  .xitem__audio { display: none; }
}

/* shared chip + wave */
.chip {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
  color: var(--ink-2);
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.chip:hover { color: var(--ink); border-color: var(--line-2); }
.chip--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 500;
}
.chip--primary:hover { background: var(--accent-2); color: var(--accent-ink); }
.chip--quiet { color: var(--ink-3); }

.wave {
  display: inline-flex;
  gap: 2px;
  align-items: center;
  height: 18px;
}
.wave i {
  width: 2px;
  background: var(--accent);
  border-radius: 2px;
  display: inline-block;
  animation: wave 1.2s ease-in-out infinite;
}
.wave i:nth-child(1) { height: 30%; animation-delay: 0s; }
.wave i:nth-child(2) { height: 60%; animation-delay: .1s; }
.wave i:nth-child(3) { height: 90%; animation-delay: .2s; }
.wave i:nth-child(4) { height: 50%; animation-delay: .3s; }
.wave i:nth-child(5) { height: 80%; animation-delay: .4s; }
.wave i:nth-child(6) { height: 40%; animation-delay: .5s; }
.wave i:nth-child(7) { height: 70%; animation-delay: .6s; }
.wave--lg { height: 34px; gap: 3px; }
.wave--lg i { width: 3px; }
@keyframes wave {
  0%, 100% { transform: scaleY(.7); }
  50%      { transform: scaleY(1.4); }
}

/* ------------------------------------------------------------------ */
/*  Library (graph + sentence repo)                                    */
/* ------------------------------------------------------------------ */
.library {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 28px;
  align-items: stretch;
}
@media (max-width: 900px) {
  .library { grid-template-columns: 1fr; }
}
.graph {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(80% 80% at 50% 50%, rgba(255,255,255,.02), transparent 80%),
    rgba(255,255,255,.012);
  padding: 22px 22px 18px;
  overflow: hidden;
  min-height: 360px;
}
.graph svg { width: 100%; height: auto; }
.graph__brief {
  position: absolute;
  top: 18px;
  left: 22px;
  right: 22px;
  z-index: 3;
  display: grid;
  gap: 3px;
  max-width: 260px;
  pointer-events: none;
}
.graph__brief span,
.graph__brief small {
  color: var(--ink-3);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.graph__brief strong {
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}
.graph__hotspots {
  position: absolute;
  inset: 22px;
  z-index: 4;
}
.graph-word {
  position: absolute;
  left: var(--x);
  top: var(--y);
  translate: -50% -50%;
  min-width: 44px;
  min-height: 34px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: transparent;
  cursor: pointer;
}
.graph-word:hover,
.graph-word:focus-visible,
.graph-word.is-active {
  border-color: rgba(98,240,184,.42);
  background: rgba(98,240,184,.1);
  color: var(--accent);
  outline: none;
}
.graph__edges path {
  stroke-dasharray: 4 6;
  animation: dash 18s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -200; } }
.graph__nodes text {
  font-family: var(--font);
  letter-spacing: -0.01em;
  text-anchor: middle;
}
.graph__nodes text.hanzi {
  font-family: var(--font-zh);
  font-size: 14px;
  fill: var(--ink);
  font-weight: 500;
}
.graph__nodes text.hanzi--core {
  fill: var(--accent-ink);
  font-size: 13px;
  font-weight: 600;
}
.graph__nodes text.pin {
  fill: var(--ink-3);
  font-size: 10px;
  letter-spacing: 0.04em;
}
.node {
  fill: rgba(255,255,255,.5);
  stroke: var(--ink-4);
}
.node--core {
  fill: var(--accent);
  filter: drop-shadow(0 0 8px rgba(98,240,184,.6));
}
.node--dim { fill: rgba(255,255,255,.22); }
.graph__legend {
  position: absolute;
  left: 22px;
  bottom: 16px;
  display: flex;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot--core { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.dot--mid  { background: rgba(255,255,255,.5); }
.dot--dim  { background: rgba(255,255,255,.22); }

.sentences {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.008));
  padding: 22px 22px 20px;
  display: grid;
  gap: 14px;
  align-content: start;
}
.sentences__label {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.sentences__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.sentences__list li {
  padding: 14px 14px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.025);
  border: 1px solid var(--line);
  display: grid;
  gap: 4px;
}
.sentences__list mark {
  border-radius: 6px;
  background: rgba(98,240,184,.14);
  color: var(--accent);
  padding: 0 .16em;
}
.sentence__zh {
  font-family: var(--font-zh);
  margin: 0;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.45;
}
.sentence__pin {
  margin: 0;
  font-size: 12.5px;
  color: var(--accent);
}
.sentence__en {
  margin: 0;
  font-size: 13px;
  color: var(--ink-3);
}
.sentence__meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}
.sentences__note {
  margin: 4px 0 0;
  color: var(--ink-3);
  font-size: 13px;
}

/* ------------------------------------------------------------------ */
/*  Flashcards                                                         */
/* ------------------------------------------------------------------ */
.flashwrap {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: 28px;
  align-items: stretch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(80% 70% at 100% 0%, rgba(98,240,184,.055), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.032), rgba(255,255,255,.008));
  padding: 24px;
}
@media (max-width: 900px) {
  .flashwrap { grid-template-columns: 1fr; padding: 20px; }
  .faces { order: 1; border-left: 0; border-bottom: 1px solid var(--line); padding: 0 0 20px; }
  .srs { order: 2; }
}

.srs {
  display: grid;
  gap: 16px;
  align-content: start;
}
.srs__label {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.srs__stack { position: relative; }
.srs__card {
  padding: 8px 0 0;
  display: grid;
  gap: 12px;
}
.srs__card--front { z-index: 2; }
.srs__card--front.is-audio {
  border-color: rgba(98,240,184,.3);
  background:
    radial-gradient(80% 90% at 50% 32%, rgba(98,240,184,.13), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.012));
}
.srs__hint {
  margin: 0;
  color: var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.srs__word {
  font-family: var(--font-zh);
  font-size: clamp(36px, 4.2vw, 52px);
  margin: 0;
  letter-spacing: 0;
  font-weight: 500;
  line-height: 1.08;
  color: var(--ink);
}
.srs__word.is-latin { font-family: var(--font); font-size: clamp(34px, 3.8vw, 48px); letter-spacing: -0.03em; }
.srs__word.is-audio-prompt { font-family: var(--font); font-size: 34px; color: var(--accent); letter-spacing: .08em; }
.srs__pin {
  margin: 0;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.srs__audio {
  justify-self: start;
  border-radius: 999px;
  border: 1px solid rgba(98,240,184,.3);
  background: rgba(98,240,184,.1);
  color: var(--accent);
  padding: 9px 14px;
  font-size: 13px;
}
.srs__actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 4px;
}
@media (max-width: 520px) {
  .srs__actions { grid-template-columns: 1fr; }
}
.srs__btn {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
  font-size: 13px;
  color: var(--ink-2);
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.srs__btn:hover:not(:disabled) { color: var(--ink); border-color: var(--line-2); }
.srs__btn:disabled { cursor: default; opacity: .78; }
.srs__btn--good,
.srs__btn.is-correct {
  background: rgba(98,240,184,.12);
  color: var(--accent);
  border-color: rgba(98,240,184,.28);
}
.srs__btn.is-wrong {
  background: rgba(255,105,105,.09);
  color: #ffb3b3;
  border-color: rgba(255,105,105,.28);
}
.srs__note { margin: 0; color: var(--ink-3); font-size: 13px; }

.faces {
  border-left: 1px solid var(--line);
  padding: 0 0 0 28px;
  display: grid;
  gap: 18px;
  align-content: start;
}
.faces__label {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.faces__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 640px) {
  .faces__row { grid-template-columns: 1fr; }
}
.face {
  border-radius: 14px;
  border: 1px solid transparent;
  background: rgba(255,255,255,.018);
  color: inherit;
  padding: 16px;
  display: grid;
  gap: 10px;
  text-align: left;
  min-height: 142px;
  align-content: center;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.face:hover,
.face:focus-visible {
  border-color: var(--line-2);
  transform: translateY(-2px);
  outline: none;
}
.face.is-active {
  border-color: rgba(98,240,184,.42);
  background: rgba(98,240,184,.08);
}
.face__top {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.face__big {
  font-family: var(--font-zh);
  font-size: clamp(25px, 2.8vw, 34px);
  color: var(--ink);
  line-height: 1.1;
}
.face__big--audio {
  font-family: var(--font);
  display: grid;
  place-items: center;
}
.face__hint {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.04em;
}

/* ------------------------------------------------------------------ */
/*  Story                                                              */
/* ------------------------------------------------------------------ */
.story-tabs {
  max-width: 960px;
  margin: 0 auto 18px;
  display: flex;
  gap: 8px;
  justify-content: flex-start;
  flex-wrap: wrap;
}
.story-tab {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
  color: var(--ink-2);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 13px;
}
.story-tab.is-active {
  background: var(--accent);
  border-color: transparent;
  color: var(--accent-ink);
}

.story {
  max-width: 960px;
  margin: 0 auto;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  border-top-color: rgba(98,240,184,.26);
  background:
    radial-gradient(80% 70% at 88% 0%, rgba(98,240,184,.07), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.022), rgba(255,255,255,.006));
  padding: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 20px;
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
  position: relative;
  overflow: hidden;
}
.story__head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 16px;
}
.story__tag {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}
.story__title {
  grid-column: 1;
  font-family: var(--font-zh);
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: 0;
  font-weight: 500;
  color: var(--ink);
}
.story__play {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 14px;
  font-weight: 500;
  transition: transform .2s ease, background .2s ease;
}
.story__play:hover { transform: translateY(-1px); background: var(--accent-2); color: var(--accent-ink); }
.play-tri {
  width: 0; height: 0;
  border-style: solid;
  border-width: 6px 0 6px 9px;
  border-color: transparent transparent transparent var(--accent-ink);
  margin-left: 1px;
}
.story__body {
  font-family: var(--font-zh);
  font-size: clamp(22px, 2.45vw, 30px);
  line-height: 1.75;
  color: var(--ink);
  letter-spacing: 0;
  margin: 0;
  max-width: 28em;
}
.w {
  position: relative;
  display: inline-block;
}
.w--new {
  color: var(--accent);
  cursor: help;
  font-weight: 500;
}
.w--new::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 1px;
  background: var(--accent);
  opacity: .55;
}
.w--new small {
  position: absolute;
  left: 50%; bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
  padding: 8px 12px;
  font-size: 12px;
  letter-spacing: 0;
  color: var(--ink);
  background: rgba(20, 22, 24, .98);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  font-weight: 400;
  font-family: var(--font);
  z-index: 3;
}
.w--new:hover small,
.w--new:focus small,
.w--new:focus-visible small {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.story-blank {
  display: inline-block;
  min-width: 3.7em;
  height: 1.05em;
  margin: 0 .12em;
  border-radius: 10px;
  border: 1px solid rgba(98,240,184,.38);
  border-bottom-color: var(--accent);
  background: rgba(98,240,184,.08);
  vertical-align: -.08em;
}
.story-blank.is-active {
  box-shadow: 0 0 0 4px rgba(98,240,184,.08);
  background: rgba(98,240,184,.14);
}
.story-blank.is-filled {
  min-width: 0;
  height: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-zh);
  font-size: 1em;
  color: var(--ink);
  vertical-align: baseline;
}
.story-word {
  position: relative;
  display: inline-block;
  border-radius: 6px;
  cursor: help;
}
.story-word:hover,
.story-word:focus-visible {
  color: var(--accent);
  outline: none;
}
.story-word::after {
  content: attr(data-gloss);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  background: rgba(20,22,24,.98);
  color: var(--ink);
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease;
  z-index: 5;
}
.story-word:hover::after,
.story-word:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.check {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 16px;
  display: grid;
  gap: 12px;
}
.check__q {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--ink-3);
}
.check__opts {
  display: none;
  flex-wrap: wrap;
  gap: 10px;
}
.check.is-live .check__opts,
.check.is-answered .check__opts {
  display: flex;
}
.check__opt {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.025);
  color: var(--ink);
  font-size: 15px;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.check__opt span { font-family: var(--font-zh); font-size: 17px; }
.check__opt em {
  font-style: normal;
  color: var(--ink-3);
  font-size: 12.5px;
}
.check__opt:disabled { cursor: not-allowed; opacity: .55; }
.check__opt:hover:not(:disabled) { background: rgba(255,255,255,.05); border-color: var(--line-2); }
.check:not(.is-live) .check__opt:not(.is-correct):not(.is-wrong) { opacity: .45; }
.check__opt.is-correct {
  background: rgba(98,240,184,.18);
  border-color: rgba(98,240,184,.55);
  box-shadow: 0 0 0 1px rgba(98,240,184,.25) inset;
}
.check__opt.is-wrong {
  background: rgba(240,138,138,.12);
  border-color: rgba(240,138,138,.42);
}
.check__feedback {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}
.check__feedback[data-kind="good"] { color: var(--accent); }
.check__feedback[data-kind="bad"]  { color: #f0a8a8; }

.story__note {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}
.story__play.is-playing { background: var(--accent-2); }
.story__play.is-playing .play-tri {
  width: 9px;
  height: 12px;
  border-width: 0 3px;
  border-color: var(--accent-ink);
}
.story.is-speaking .story__wave span {
  animation-duration: .55s;
}

.w.is-open small {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
}

.srs__card.is-revealed .srs__hint { color: var(--accent); }
.srs__feedback {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--accent);
  min-height: 1.2em;
}

.xitem[data-state="saved"]   { border-color: rgba(98,240,184,.4); background: rgba(98,240,184,.06); }
.xitem[data-state="skipped"] { opacity: .5; }
.xitem[data-state="editing"] { border-color: var(--accent); }
.xitem__main b[contenteditable="true"] {
  outline: 1px dashed var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.story__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  padding-top: 6px;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}
.legend { display: inline-flex; align-items: center; gap: 8px; }
.legend__push { margin-left: auto; color: var(--accent); }
.legend__sw {
  display: inline-block;
  width: 18px; height: 4px;
  border-radius: 2px;
}
.legend__sw--known { background: rgba(255,255,255,.4); }
.legend__sw--new   { background: var(--accent); box-shadow: 0 0 6px var(--accent); }

.story__wave {
  display: flex;
  gap: 3px;
  align-items: center;
  height: 36px;
}
.story__wave span {
  flex: 1;
  background: linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.08));
  border-radius: 2px;
  animation: storywave 2.6s ease-in-out infinite;
}
.story__wave span:nth-child(odd)  { animation-delay: .15s; }
.story__wave span:nth-child(3n)   { animation-delay: .3s; }
.story__wave span:nth-child(5n)   { background: linear-gradient(180deg, var(--accent), rgba(98,240,184,.35)); }
@keyframes storywave {
  0%, 100% { height: 20%; }
  50%      { height: 90%; }
}

/* ------------------------------------------------------------------ */
/*  Principle                                                          */
/* ------------------------------------------------------------------ */
.principle {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) {
  .principle { grid-template-columns: 1fr; }
}
.bullets {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.bullets li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-2);
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(98,240,184,.6);
}
.bullets li span { color: var(--ink); font-weight: 500; }

.proposal {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  padding: 28px;
  display: grid;
  gap: 14px;
  box-shadow: var(--shadow-1);
}
.proposal__head {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.proposal__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.proposal__line {
  margin: 0;
  font-size: 17px;
  letter-spacing: -0.005em;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
}
.proposal__line b {
  font-family: var(--font-zh);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}
.proposal__pin { color: var(--accent); font-size: 14px; }
.proposal__line i { color: var(--ink-2); font-style: normal; }
.proposal__ex {
  margin: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,.025);
  border: 1px solid var(--line);
  font-family: var(--font-zh);
  font-size: 17px;
  color: var(--ink);
  line-height: 1.5;
}
.proposal__ex mark {
  color: var(--accent);
  background: transparent;
  text-decoration: underline;
  text-decoration-color: rgba(98,240,184,.4);
  text-underline-offset: 4px;
}
.proposal__ex-en {
  margin: -4px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}
.proposal__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------ */
/*  CTA                                                                */
/* ------------------------------------------------------------------ */
.cta {
  padding: clamp(80px, 14vh, 140px) var(--pad);
  text-align: center;
  border-top: 1px solid var(--line);
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(50% 50% at 50% 50%, rgba(98,240,184,.08), transparent 60%);
  z-index: -1;
}
.cta__inner { max-width: 820px; margin: 0 auto; }
.cta__form {
  margin: 36px auto 14px;
  display: flex;
  align-items: stretch;
  gap: 8px;
  width: 100%;
  max-width: 720px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.03);
  transition: border-color .2s ease, background .2s ease;
}
.cta__form:focus-within {
  border-color: rgba(98,240,184,.4);
  background: rgba(255,255,255,.05);
}
.cta__form > input[type="email"] {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: 0;
  padding: 14px 20px;
  color: var(--ink);
  font: inherit;
  font-size: 16px; /* prevent iOS zoom on focus */
}
.cta__form > input[type="email"]::placeholder { color: var(--ink-3); }
.cta__form > button[type="submit"] { flex: 0 0 auto; white-space: nowrap; }
.cta__fine { color: var(--ink-3); font-size: 13px; margin: 0; }
.cta__status {
  min-height: 1.4em;
  color: var(--ink-3);
  font-size: 14px;
  margin: 10px 0 0;
  transition: color .2s ease;
}
.cta__status[data-state="submitting"] { color: var(--ink-2, var(--ink-3)); }
.cta__status[data-state="success"],
.cta__status[data-state="duplicate"] { color: var(--accent); }
.cta__status[data-state="error"]     { color: #f08a8a; }
.cta__form[data-state="submitting"] button[type="submit"] { opacity: .7; cursor: progress; }
.cta__form[data-state="submitting"] > input[type="email"] { opacity: .8; }
@media (max-width: 640px) {
  .cta__form {
    flex-direction: column;
    border-radius: 18px;
    padding: 10px;
    gap: 10px;
  }
  .cta__form > input[type="email"] {
    width: 100%;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(255,255,255,.04);
  }
  .cta__form > button[type="submit"] { width: 100%; }
}

/* ------------------------------------------------------------------ */
/*  FAQ                                                                */
/* ------------------------------------------------------------------ */
.section--faq { padding-top: clamp(40px, 6vh, 80px); }
.section--faq .section__head { margin-bottom: 32px; }
.faq {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  gap: 4px;
  border-top: 1px solid var(--line);
}
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: clamp(16px, 1.8vw, 19px);
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 22px;
  color: var(--ink-3);
  transition: transform .25s ease;
  font-weight: 300;
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p {
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: 15px;
  max-width: 64ch;
  line-height: 1.6;
}

/* ------------------------------------------------------------------ */
/*  Footer                                                             */
/* ------------------------------------------------------------------ */
.foot {
  border-top: 1px solid var(--line);
  padding: 40px var(--pad);
  background: var(--bg-2);
}
.foot__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.foot__brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; }
.foot__tag { margin: 0; color: var(--ink-3); font-size: 13px; }
.foot__nav { display: flex; gap: 20px; font-size: 13px; color: var(--ink-2); flex-wrap: wrap; }
.foot__nav a:hover { color: var(--ink); }
.foot__legal { margin: 0; color: var(--ink-3); font-size: 12px; grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid var(--line); }
@media (max-width: 720px) {
  .foot__inner { grid-template-columns: 1fr; text-align: left; }
}

/* ------------------------------------------------------------------ */
/*  Reveal on scroll                                                   */
/* ------------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}