:root {
  --bg:#f7f8f4;
  --bg-soft:#eef1ee;
  --fg:#1a292c;
  --muted:#647174;
  --line:#dce2dd;
  --accent:#2458bd;
  --accent-ink:#184397;
  --accent-soft:#e9eef7;
  --card:#fff;
  --maxw:1160px;
  --radius:24px;
  color-scheme:light
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:100px;
  -webkit-text-size-adjust:100%
}
body {
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75
}
a {
  color:var(--accent);
  text-decoration:none
}
a:hover {
  color:var(--accent-ink)
}
button,a {
  -webkit-tap-highlight-color:transparent
}
button {
  font:inherit
}
button,a,summary {
  touch-action:manipulation
}
a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:3px solid #6b91e9;
  outline-offset:5px
}
img {
  max-width:100%;
  display:block
}
.wrap {
  max-width:var(--maxw);
  padding:0 28px;
  margin:auto
}
.narrow {
  max-width:800px
}
.skip-link {
  position:fixed;
  top:-100px;
  left:20px;
  background:var(--card);
  padding:12px;
  z-index:100
}
.skip-link:focus {
  top:12px
}
.nav {
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(247,248,244,.92);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line)
}
.nav .wrap {
  height:86px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px
}
.brand {
  display:flex;
  align-items:center;
  gap:10px;
  font-size:23px;
  font-weight:750;
  color:var(--fg);
  white-space:nowrap
}
.brand .logo {
  width:36px;
  height:36px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:var(--accent);
  color:white
}
.brand-note {
  font-size:11px;
  font-weight:400;
  border-left:1px solid var(--line);
  margin-left:7px;
  padding-left:17px;
  color:var(--muted)
}
.nav-links {
  display:flex;
  gap:28px;
  font-size:13px
}
.nav-links a {
  color:var(--muted)
}
.nav-links a:hover {
  color:var(--accent)
}
.nav-cta {
  font-size:13px;
  background:var(--fg);
  color:#fff;
  padding:9px 18px;
  border-radius:7px
}
.nav-cta:hover {
  background:var(--accent);
  color:white
}
.nav-cta span {
  margin-left:16px
}
.eyebrow {
  font-size:10px;
  font-weight:650;
  letter-spacing:1.7px;
  color:var(--accent);
  margin:0 0 23px
}
.status-dot {
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  background:#5a917a;
  margin-right:8px
}
.hero {
  overflow:hidden;
  padding:86px 0 72px
}
.hero-grid {
  display:grid;
  grid-template-columns:1fr 1.08fr;
  gap:35px;
  align-items:center
}
.hero-copy>.eyebrow {
  letter-spacing:2px;
  color:#556968
}
h1,h2,h3,p {
  margin-top:0
}
h1 {
  font-size:clamp(58px,5.4vw,78px);
  letter-spacing:-4px;
  line-height:1.23;
  margin-bottom:27px;
  font-weight:750
}
.accent-word {
  color:var(--accent)
}
.word-dot {
  color:#89a8bc
}
h2 {
  font-size:40px;
  line-height:1.4;
  letter-spacing:-1.3px;
  font-weight:650;
  margin-bottom:20px
}
h3 {
  font-size:21px;
  line-height:1.5;
  font-weight:650;
  margin-bottom:12px
}
.lead {
  font-size:21px;
  line-height:1.7;
  margin-bottom:15px
}
.hero-description {
  color:var(--muted);
  font-size:14px;
  line-height:1.9
}
.cta-row {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:28px;
  margin-top:28px
}
.btn {
  display:inline-flex;
  justify-content:center;
  align-items:center;
  gap:30px;
  background:var(--accent);
  color:#fff;
  border:1px solid transparent;
  border-radius:8px;
  padding:13px 23px;
  font-size:14px;
  font-weight:600;
  transition:background .2s,transform .2s
}
.btn:hover {
  background:var(--accent-ink);
  color:white;
  transform:translateY(-2px)
}
.text-link {
  font-size:13px;
  font-weight:550;
  color:var(--fg)
}
.text-link:hover {
  color:var(--accent)
}
.device-note {
  font-size:11px;
  color:var(--muted);
  margin:23px 0 0
}
.device-note>span:last-child {
  margin-left:12px;
  color:#768183
}
.hero-art {
  position:relative;
  min-height:475px;
  display:flex;
  align-items:center;
  justify-content:center;
  isolation:isolate
}
.orbit {
  position:absolute;
  width:530px;
  height:530px;
  border:1px solid #dfe6e5;
  border-radius:50%;
  z-index:-1;
  background:radial-gradient(circle,rgba(191,213,227,.35),transparent 65%)
}
.orbit-two {
  width:420px;
  height:420px;
  background:none
}
.table-scene {
  width:95%;
  background:radial-gradient(ellipse at 40% 0,#37567a,#1e3553 70%);
  color:#f4f6f7;
  padding:30px 30px 24px;
  border:1px solid #65809a;
  border-radius:24px;
  transform:rotate(-7deg);
  box-shadow:0 18px 0 #162b42,0 22px 0 #526479,0 42px 55px -16px #1b304550
}
.table-topline {
  display:flex;
  justify-content:space-between;
  font-size:9px;
  letter-spacing:2px;
  color:#b2c4d8
}
.table-heading {
  font-size:20px;
  letter-spacing:2px;
  margin:24px 0 26px
}
.display-hand {
  display:flex;
  justify-content:center;
  gap:9px
}
.art-tile {
  background:linear-gradient(130deg,#fffef6,#edeadf);
  display:grid;
  place-items:center;
  width:61px;
  height:81px;
  padding:8px;
  border-radius:7px;
  box-shadow:0 5px 0 #b4b8ab,0 7px 0 #d9dbcd,0 13px 9px #06162b66
}
.art-tile img {
  width:100%;
  height:100%;
  object-fit:contain
}
.second-hand {
  margin:23px 0 32px
}
.lifted {
  transform:translateY(-12px) rotate(8deg);
  outline:2px solid #aac7ed;
  outline-offset:4px
}
.table-bottom {
  display:flex;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid #ffffff20;
  padding-top:16px;
  font-size:10px;
  color:#b6c6d5
}
.table-bottom>span:last-child {
  font-size:18px
}
.table-bottom i {
  display:inline-block;
  background:#a0bd9c;
  width:5px;
  height:5px;
  border-radius:50%;
  margin-right:7px
}
.floating-label {
  position:absolute;
  z-index:2;
  background:#fffef9;
  border:1px solid #e3e6df;
  display:flex;
  align-items:center;
  gap:12px;
  padding:13px 18px;
  border-radius:12px;
  box-shadow:0 12px 30px #152d4610
}
.floating-label strong {
  display:block;
  font-size:12px;
  font-weight:650
}
.floating-label small {
  font-size:9px;
  color:var(--muted)
}
.label-top {
  top:0;
  right:0;
  transform:rotate(3deg)
}
.label-bottom {
  bottom:5px;
  left:5px;
  transform:rotate(3deg)
}
.small-mark,.check-mark {
  display:grid;
  place-items:center;
  width:31px;
  height:31px;
  background:#edf2f8;
  color:var(--accent);
  border-radius:50%;
  font-size:20px
}
.check-mark {
  color:#3c8068;
  background:#e7f0e7
}
.art-caption {
  position:absolute;
  bottom:-34px;
  right:4px;
  font-size:8px;
  color:#79888d;
  letter-spacing:2px
}
.stats {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:28px 0
}
.stats>div {
  text-align:center;
  border-right:1px solid var(--line)
}
.stats>div:last-child {
  border:0
}
.stats strong {
  font-size:35px;
  font-weight:500;
  letter-spacing:-1.5px
}
.stats strong span {
  font-size:12px;
  margin-left:6px;
  letter-spacing:0
}
.stats p {
  font-size:11px;
  color:var(--muted);
  margin:3px 0 0
}
section {
  padding:94px 0
}
.section-heading {
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  margin-bottom:36px
}
.section-heading h2 {
  margin-bottom:0
}
.section-heading>p {
  color:var(--muted);
  font-size:13px;
  line-height:1.9;
  margin-bottom:7px
}
.feature-grid {
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:18px
}
.direction-card {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 36px;
}
.direction-art {
  position: relative;
  flex: 0 0 130px;
  height: 130px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 11px;
}
.direction-art > span {
  position: absolute;
}
.direction-north { top: 8px; left: 50%; transform: translateX(-50%); }
.direction-south { bottom: 8px; left: 50%; transform: translateX(-50%); }
.direction-east { right: 12px; top: 50%; transform: translateY(-50%); }
.direction-west { left: 12px; top: 50%; transform: translateY(-50%); }
.direction-art .direction-needle {
  inset: 25px;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 43px;
  transform: rotate(30deg);
}
.direction-copy { min-width: 0; }
.direction-copy h3 { margin-top: 10px; }
.direction-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
@media (max-width: 760px) {
  .direction-card { flex-direction: column; align-items: flex-start; gap: 22px; }
  .direction-art { flex-basis: auto; width: 110px; height: 110px; }
  .direction-copy br { display: none; }
}
.feature-card {
  background:var(--card);
  padding:30px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden
}
.feature-card p {
  font-size:13px;
  color:var(--muted);
  line-height:1.9;
  margin:0
}
.practice-card,.lesson-card {
  grid-column:span 3
}
.practice-card {
  background:#eaf0f5
}
.lesson-card {
  background:#f0f1e8
}
.card-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:25px
}
.feature-icon {
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border-radius:10px;
  background:#fff9;
  color:var(--accent);
  font-size:25px
}
.card-index {
  font-size:9px;
  letter-spacing:1.3px;
  color:var(--muted)
}
.mini-progress {
  background:#fff9;
  border:1px solid #fff;
  border-radius:12px;
  margin-top:30px;
  padding:19px
}
.mini-progress>div:first-child {
  display:flex;
  justify-content:space-between;
  font-size:10px;
  color:var(--muted)
}
.level-chips {
  display:flex;
  gap:10px;
  margin-top:17px
}
.level-chips span {
  flex:1;
  text-align:center;
  padding:10px 0;
  background:#e9edf0;
  color:#849293;
  font-size:11px;
  border-radius:6px
}
.level-chips .current {
  background:var(--accent);
  color:white
}
.lesson-list {
  margin-top:23px
}
.lesson-list>span {
  display:flex;
  align-items:center;
  gap:17px;
  padding:11px 0;
  font-size:12px;
  border-bottom:1px solid #dce0d5
}
.lesson-list>span:last-child {
  border:0
}
.lesson-list b {
  font-size:9px;
  color:#6c786f;
  font-weight:400
}
.lesson-list i {
  margin-left:auto;
  font-style:normal;
  color:#819178
}
.compact-card {
  grid-column:span 2
}
.compact-card .feature-icon {
  background:#eef2f5;
  margin-bottom:24px
}
.compact-card h3 {
  font-size:18px
}
.card-tag {
  display:inline-block;
  padding:4px 10px;
  font-size:10px;
  border:1px solid var(--line);
  border-radius:5px;
  color:var(--muted)
}
.compact-card .card-tag {
  margin-top:23px
}
.demo-section {
  background:#eaf0f1
}
.demo-grid>div {
  min-width:0
}
.demo-grid {
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:70px;
  align-items:center
}
.section-copy {
  font-size:14px;
  line-height:1.9;
  color:var(--muted)
}
.demo-caption {
  display:flex;
  gap:16px;
  align-items:center;
  font-size:12px;
  margin-top:35px
}
.demo-caption>span {
  font-size:36px;
  color:#9aafb7;
  font-weight:300
}
.demo-caption small {
  font-size:10px;
  color:var(--muted)
}
.demo-board {
  padding:28px;
  background:var(--card);
  border:1px solid #dae2e4;
  border-radius:20px;
  box-shadow:0 20px 40px #1d43510a
}
.demo-top {
  display:flex;
  justify-content:space-between;
  font-size:10px;
  color:var(--muted);
  margin-bottom:20px
}
.demo-board h3 {
  font-size:15px;
  margin-bottom:24px
}
.hand-row {
  display:flex;
  justify-content:center;
  gap:5px;
  margin:9px 0
}
.mahjong-tile {
  display:inline-grid;
  place-items:center;
  width:42px;
  height:57px;
  padding:5px;
  background:linear-gradient(140deg,#fffef8,#eeeede);
  border:1px solid #d9dacb;
  border-radius:5px;
  box-shadow:0 3px 0 #c6ccbd;
  flex-shrink:1;
  min-width:0
}
.mahjong-tile img {
  width:100%;
  height:100%;
  object-fit:contain
}
.choose-label {
  text-align:center;
  font-size:11px;
  color:var(--muted);
  margin:26px 0 14px
}
.choose-label span {
  margin-left:10px
}
.answer-options {
  display:flex;
  gap:16px;
  justify-content:center
}
.tile-option {
  background:none;
  border:0;
  padding:5px 7px;
  cursor:pointer;
  color:var(--muted);
  border-radius:7px;
  transition:background .15s,transform .15s
}
.tile-option>.mahjong-tile {
  width:45px;
  height:60px
}
.tile-option>span:last-child {
  display:block;
  font-size:10px;
  margin-top:9px
}
.tile-option:hover {
  background:var(--accent-soft);
  transform:translateY(-4px)
}
.tile-option[aria-pressed=true] {
  background:var(--accent-soft);
  outline:2px solid var(--accent)
}
.answer-feedback {
  font-size:11px;
  color:var(--muted);
  text-align:center;
  background:var(--bg);
  border-radius:9px;
  margin-top:21px;
  padding:13px;
  min-height:46px
}
.answer-feedback.answered {
  text-align:left;
  background:#f6f0e5
}
.answer-feedback.correct {
  background:#edf5ed
}
.answer-feedback strong {
  font-size:12px;
  color:var(--fg)
}
.answer-feedback p {
  margin:7px 0 0;
  line-height:1.8
}
.reset-button {
  display:block;
  margin:12px auto 0;
  border:0;
  background:none;
  color:var(--accent);
  cursor:pointer;
  font-size:11px
}
.reset-button[hidden] {
  display:none
}
.steps {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:40px
}
.steps article {
  border-top:1px solid var(--line);
  padding-top:22px
}
.steps article>span {
  font-size:11px;
  color:var(--accent)
}
.steps h3 {
  font-size:17px;
  margin:20px 0 10px
}
.steps p {
  font-size:13px;
  color:var(--muted)
}
.quiet-section {
  background:#213a52;
  color:#f3f5f2;
  padding:64px 0
}
.quiet-content {
  display:flex;
  gap:70px;
  align-items:center;
  justify-content:center
}
.privacy-symbol {
  width:138px;
  height:156px;
  display:grid;
  place-items:center;
  border:1px solid #94a8b54d;
  border-radius:58px 58px 65px 65px;
  font-size:62px;
  font-family:serif;
  color:#c4d0c9;
  box-shadow:inset 0 0 0 12px #ffffff04
}
.quiet-section .eyebrow {
  color:#aec6d9
}
.quiet-section h2 {
  font-size:32px
}
.quiet-section p:not(.eyebrow) {
  color:#becbd5;
  font-size:13px
}
.quiet-section .text-link {
  color:#e7ecdd;
  font-size:12px
}
.membership {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:90px;
  align-items:center
}
.fine-print {
  color:var(--muted);
  font-size:11px;
  line-height:1.9
}
.membership>div>.fine-print {
  margin-top:25px
}
.price-box {
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:32px;
  box-shadow:0 14px 40px #30433605
}
.price-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:28px;
  font-size:12px
}
.price-top .card-tag {
  border:0;
  background:var(--accent-soft);
  color:var(--accent)
}
.price-box h3 {
  font-size:23px
}
.muted {
  color:var(--muted)
}
.price-box>.muted {
  font-size:12px
}
.price-box ul {
  padding:20px 0;
  margin:20px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  list-style:none
}
.price-box li {
  font-size:13px;
  padding:5px 0
}
.price-box li:before {
  content:'✓';
  color:#508272;
  margin-right:13px
}
.price-box .btn {
  width:100%;
  justify-content:space-between
}
.price-box .fine-print {
  font-size:10px;
  margin:14px 0 0;
  text-align:center
}
.closing {
  text-align:center;
  padding:55px 0 60px;
  border-top:1px solid var(--line)
}
.closing .eyebrow {
  margin-bottom:17px
}
.closing h2 {
  font-size:36px
}
.closing .fine-print {
  margin:18px 0 0
}
.site {
  padding:28px 0;
  border-top:1px solid var(--line);
  background:var(--bg)
}
.site .wrap {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px
}
.site .brand {
  font-size:19px
}
.site .logo {
  width:30px;
  height:30px
}
.site span,.site div,.site a:not(.brand) {
  font-size:11px;
  color:var(--muted)
}
.footer-links {
  display:flex;
  gap:20px
}
.doc {
  padding:68px 0 90px
}
.doc h1 {
  font-size:42px;
  letter-spacing:-1px
}
.doc h2 {
  font-size:22px;
  margin:36px 0 12px;
  letter-spacing:0
}
.doc .meta {
  font-size:13px;
  color:var(--muted);
  margin:20px 0 30px
}
.doc p,.doc li {
  font-size:15px;
  line-height:1.95
}
.doc li {
  margin:8px 0
}
.callout {
  padding:20px 24px;
  border-radius:14px;
  background:var(--accent-soft);
  border:1px solid var(--line);
  margin:25px 0;
  font-size:14px
}
.faq {
  border-top:1px solid var(--line)
}
.faq details {
  padding:8px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:105px
}
.faq summary {
  cursor:pointer;
  list-style:none;
  font-size:16px;
  font-weight:600;
  padding:14px 0
}
.faq summary::-webkit-details-marker {
  display:none
}
.faq summary:before {
  content:'＋';
  color:var(--accent);
  margin-right:15px
}
.faq details[open] summary:before {
  content:'−'
}
.faq details p {
  color:var(--muted);
  margin:0 0 16px 33px
}
@media(min-width:1500px) {
  .hero {
    padding-top:110px;
    padding-bottom:100px
  }
}
@media(max-width:1000px) {
  .brand-note {
    display:none
  }
  .hero-grid {
    gap:20px
  }
  .hero-art {
    min-height:430px
  }
  .table-scene {
    padding:25px 22px
  }
  .art-tile {
    height:70px;
    width:50px
  }
  .table-heading {
    font-size:16px
  }
  .label-top {
    top:5px
  }
  .label-bottom {
    bottom:0
  }
  .demo-grid {
    gap:35px
  }
  .membership {
    gap:45px
  }
  .nav-links {
    gap:20px
  }
  .feature-card {
    padding:24px
  }
  h1 {
    font-size:62px
  }
}
@media(max-width:760px) {
  .wrap {
    padding:0 22px
  }
  .nav .wrap {
    height:70px;
    gap:16px
  }
  .brand {
    font-size:21px
  }
  .nav-links {
    gap:17px;
    font-size:12px
  }
  .nav-links a:nth-child(2),.nav-links a:nth-child(3) {
    display:none
  }
  .nav-cta {
    font-size:11px;
    padding:8px 12px
  }
  .nav-cta span {
    margin-left:6px
  }
  .hero {
    padding:52px 0 44px
  }
  .hero-grid {
    grid-template-columns:1fr;
    gap:48px
  }
  .hero-copy {
    text-align:center
  }
  h1 {
    font-size:64px;
    letter-spacing:-3px
  }
  .lead {
    font-size:19px
  }
  .hero-description {
    font-size:13px
  }
  .cta-row {
    justify-content:center;
    gap:26px
  }
  .hero-art {
    width:100%;
    max-width:480px;
    min-height:445px;
    margin:auto
  }
  .table-scene {
    width:90%
  }
  .label-top {
    right:0
  }
  .label-bottom {
    left:0
  }
  .art-caption {
    bottom:-12px;
    font-size:7px
  }
  .stats {
    padding:24px 0;
    grid-template-columns:repeat(2,1fr);
    gap:22px 0
  }
  .stats>div:nth-child(2) {
    border:0
  }
  .stats strong {
    font-size:31px
  }
  section {
    padding:62px 0
  }
  h2 {
    font-size:32px
  }
  .section-heading {
    display:block;
    margin-bottom:28px
  }
  .section-heading>p {
    margin:20px 0 0
  }
  .feature-grid {
    gap:14px;
    grid-template-columns:1fr
  }
  .feature-card {
    grid-column:auto;
    padding:25px
  }
  .card-top {
    margin-bottom:18px
  }
  .compact-card .feature-icon {
    margin-bottom:17px
  }
  .demo-grid {
    grid-template-columns:1fr;
    gap:28px
  }
  .demo-grid h2 br {
    display:none
  }
  .demo-caption {
    margin-top:18px
  }
  .demo-board {
    max-width:480px;
    width:100%;
    margin:auto;
    padding:24px 20px
  }
  .steps {
    grid-template-columns:1fr;
    gap:18px
  }
  .steps article {
    position:relative;
    padding:20px 0 0 45px
  }
  .steps article>span {
    position:absolute;
    top:23px;
    left:0
  }
  .steps h3 {
    margin:0 0 10px
  }
  .quiet-content {
    gap:28px;
    align-items:flex-start
  }
  .privacy-symbol {
    width:65px;
    height:80px;
    flex-shrink:0;
    font-size:32px;
    box-shadow:none
  }
  .quiet-section .eyebrow {
    font-size:8px;
    letter-spacing:1px
  }
  .quiet-section h2 {
    font-size:26px
  }
  .quiet-section p br {
    display:none
  }
  .membership {
    grid-template-columns:1fr;
    gap:25px
  }
  .price-box {
    padding:26px
  }
  .closing h2 {
    font-size:30px
  }
  .site .wrap {
    flex-wrap:wrap;
    justify-content:flex-start;
    gap:16px
  }
  .footer-links {
    width:100%
  }
  .doc {
    padding:42px 0 60px
  }
  .doc h1 {
    font-size:32px
  }
  .doc h2 {
    font-size:21px
  }
  .doc p,.doc li {
    font-size:14px
  }
  .callout {
    padding:17px
  }
  .faq summary {
    font-size:15px
  }
  .doc .meta {
    font-size:12px
  }
}
@media(max-width:380px) {
  h1 {
    font-size: 54px;
  }
  .wrap {
    padding:0 16px
  }
  .nav-links {
    gap:12px
  }
  .nav-cta {
    display:none
  }
  .hero-art {
    min-height:410px
  }
  .art-tile {
    width:43px;
    height:62px;
    padding:6px
  }
  .display-hand {
    gap:7px
  }
  .table-scene {
    padding:25px 18px
  }
  .table-heading {
    font-size:14px
  }
  .floating-label {
    padding:10px 12px
  }
  .floating-label strong {
    font-size:11px
  }
  .mahjong-tile {
    width:35px;
    height:48px;
    padding:3px
  }
  .hand-row {
    gap:4px
  }
  .demo-board {
    padding:22px 13px
  }
  .answer-options {
    gap:11px
  }
  .quiet-content {
    gap:17px
  }
}
@media(prefers-color-scheme:dark) {
  :root {
    --bg:#141d25;
    --bg-soft:#1b2833;
    --fg:#ebefe9;
    --muted:#a6b4bd;
    --line:#34434b;
    --accent:#98b9ff;
    --accent-ink:#b7cdff;
    --accent-soft:#243651;
    --card:#1c2934;
    color-scheme:dark
  }
  .nav {
    background:rgba(20,29,37,.94)
  }
  .btn {
    background:#426dcc;
    color:#fff
  }
  .btn:hover {
    background:#567ed7
  }
  .nav-cta {
    background:#426dcc;
    color:white
  }
  .hero-copy>.eyebrow {
    color:#b2c8be
  }
  .orbit {
    border-color:#34424c;
    background:radial-gradient(circle,#28446155,transparent 65%)
  }
  .orbit-two {
    background:none
  }
  .floating-label {
    background:#21323f;
    border-color:#435260
  }
  .small-mark {
    background:#304566
  }
  .practice-card {
    background:#213347
  }
  .lesson-card {
    background:#2b352f
  }
  .feature-icon {
    background:#ffffff0c
  }
  .mini-progress {
    background:#192835;
    border-color:#354957
  }
  .level-chips span {
    background:#30424f;
    color:#bccbd1
  }
  .level-chips .current {
    background:#426dcc
  }
  .lesson-list>span {
    border-color:#435044
  }
  .lesson-list b {
    color:#b7c5bc
  }
  .compact-card .feature-icon {
    background:#2b3b48
  }
  .demo-section {
    background:#18252e
  }
  .demo-board {
    border-color:var(--line)
  }
  .answer-feedback.answered {
    background:#403a2d
  }
  .answer-feedback.correct {
    background:#263e35
  }
  .quiet-section {
    background:#203447
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  *,*:before,*:after {
    transition:none!important;
    animation:none!important
  }
}