/* NexaThai: ink and teal, one accent. Self-hosted fonts, no remote fonts or scripts.
   Fonts are SIL Open Font License 1.1 — see assets/fonts-OFL.txt.
   Nunito by Vernon Adams et al.; Noto Sans Thai by Google.
   Both are subset and weight-clamped variable builds. */

@font-face{
  font-family:Nunito;
  src:url(/assets/nunito-latin.woff2) format("woff2");
  font-weight:400 800;
  font-style:normal;
  font-display:swap
}
@font-face{
  font-family:"Noto Sans Thai";
  src:url(/assets/noto-sans-thai.woff2) format("woff2");
  font-weight:400 700;
  font-style:normal;
  font-display:swap;
  unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC
}

:root{
  color-scheme:light dark;

  /* surfaces and text */
  --ink:#102632;
  --muted:#526873;
  --paper:#fff;
  --pale:#f0f6f8;
  --line:#d8e4e9;

  /* the single accent */
  --teal:#007c77;
  --teal-edge:#00605c;
  --teal-wash:#e4f2f1;
  --teal-bright:#35b3ac;
  --on-teal:#fff;

  /* the practice canvas */
  --grid:#dce8ec;

  /* inverted panels: hero and the download band stay dark in both themes */
  --deep:#102632;
  --on-deep:#fff;
  --on-deep-muted:#bed0d8;
  --on-deep-line:#3a5462;

  /* status */
  --danger:#9b272c;
  --notice:#b45309;
  --notice-wash:#fff5e6;
  --notice-ink:#74370b;

  /* three radii, plus one for the phone bezels, which are physical not editorial */
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-device:40px;

  --font:Nunito,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-thai:"Noto Sans Thai",Nunito,sans-serif;

  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:160ms;
  --t-slow:200ms;

  --shadow-card:0 18px 40px -28px #10263273
}

:root:not([data-theme="light"]){
  @media (prefers-color-scheme:dark){
    --ink:#e8f1f4;
    --muted:#94aeb9;
    --paper:#0c1a22;
    --pale:#12242e;
    --line:#213a46;
    --teal:#35b3ac;
    --teal-edge:#1f7d78;
    --teal-wash:#14312f;
    --teal-bright:#4cc7bf;
    --on-teal:#04231f;
    --grid:#1c3340;
    --deep:#081219;
    --on-deep:#eaf3f6;
    --on-deep-muted:#a9c2cc;
    --on-deep-line:#2b4655;
    --danger:#ff8b8f;
    --notice:#f0b45c;
    --notice-wash:#2a1f10;
    --notice-ink:#ffdca8;
    --shadow-card:0 18px 40px -24px #000000a6
  }
}

:root[data-theme="dark"]{
  --ink:#e8f1f4;
  --muted:#94aeb9;
  --paper:#0c1a22;
  --pale:#12242e;
  --line:#213a46;
  --teal:#35b3ac;
  --teal-edge:#1f7d78;
  --teal-wash:#14312f;
  --teal-bright:#4cc7bf;
  --on-teal:#04231f;
  --grid:#1c3340;
  --deep:#081219;
  --on-deep:#eaf3f6;
  --on-deep-muted:#a9c2cc;
  --on-deep-line:#2b4655;
  --danger:#ff8b8f;
  --notice:#f0b45c;
  --notice-wash:#2a1f10;
  --notice-ink:#ffdca8;
  --shadow-card:0 18px 40px -24px #000000a6
}

*{
  box-sizing:border-box
}
html{
  scroll-behavior:smooth;
  scroll-padding-top:2rem
}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:1rem;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility
}
:lang(th){
  font-family:var(--font-thai)
}
a{
  color:var(--teal);
  text-underline-offset:.25em;
  transition:color var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease)
}
a:hover{
  text-decoration:underline
}
a:active{
  opacity:.72
}
button,input{
  font:inherit;
  color:inherit
}
button,a,input,summary{
  -webkit-tap-highlight-color:transparent
}
a,button,input,summary{
  touch-action:manipulation
}
:focus-visible{
  outline:3px solid var(--teal);
  outline-offset:3px;
  border-radius:4px
}
img{
  display:block;
  max-width:100%;
  height:auto
}
h1,h2,h3,p{
  margin:0
}
h1,h2,h3{
  line-height:1.12;
  letter-spacing:-.03em;
  text-wrap:balance
}
h1,h2{
  font-weight:800
}
h2{
  font-size:clamp(2rem,4vw,3rem)
}
h3{
  font-size:1.25rem;
  line-height:1.3;
  letter-spacing:-.02em;
  font-weight:700
}
strong{
  font-weight:700
}

/* ---------- shared layout ---------- */

.container{
  width:min(1180px,calc(100% - 80px));
  margin-inline:auto
}
.section{
  padding-block:100px
}
.section-heading{
  max-width:700px;
  margin-bottom:46px
}
.section-intro{
  margin-top:20px;
  color:var(--muted);
  font-size:1.15rem;
  max-width:620px
}
/* Small caps rather than shouting: the source text is sentence case. */
.eyebrow{
  font-size:.875rem;
  font-weight:700;
  letter-spacing:.08em;
  font-variant-caps:all-small-caps;
  color:var(--teal);
  margin-bottom:18px
}
.muted,.fine-print{
  color:var(--muted)
}
.fine-print{
  font-size:.85rem;
  max-width:730px;
  margin:34px auto 0;
  text-align:center
}
.skip-link{
  position:absolute;
  top:-100px;
  left:20px;
  z-index:10;
  padding:14px 18px;
  border-radius:var(--r-sm);
  background:var(--paper);
  color:var(--ink);
  font-weight:700;
  text-decoration:none;
  box-shadow:var(--shadow-card);
  transition:top var(--t-slow) var(--ease)
}
.skip-link:focus{
  top:10px
}

/* ---------- header ---------- */

.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line)
}
.header-inner{
  min-height:96px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-block:14px
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--ink);
  font-size:1.45rem;
  font-weight:800;
  letter-spacing:-.03em;
  transition:opacity var(--t-fast) var(--ease)
}
.brand img{
  border-radius:var(--r-sm);
  transition:transform var(--t-slow) var(--ease)
}
.brand:hover{
  text-decoration:none
}
.brand:hover img{
  transform:rotate(-4deg) scale(1.04)
}
.brand:active img{
  transform:rotate(-4deg) scale(.97)
}
.header-inner nav{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:.9rem;
  font-weight:600
}
.header-inner nav a{
  color:var(--ink);
  text-decoration:none;
  transition:color var(--t-fast) var(--ease)
}
.header-inner nav a:hover{
  color:var(--teal);
  text-decoration:none
}
.nav-download{
  padding:11px 18px;
  border:1.5px solid var(--ink);
  border-radius:var(--r-sm);
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)
}
.nav-download:hover{
  background:var(--teal);
  border-color:var(--teal);
  color:var(--on-teal)
}
.nav-download:active{
  transform:translateY(1px)
}
.sign-in-link{
  white-space:nowrap
}

/* ---------- the practice canvas: the brand device ---------- */

.board{
  position:relative;
  container-type:inline-size;
  aspect-ratio:1;
  width:100%;
  max-width:360px;
  border-radius:var(--r-lg);
  background:var(--pale);
  border:1px solid var(--line);
  overflow:hidden
}
.board:before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:33.333% 33.333%
}
.board-baseline{
  position:absolute;
  left:8%;
  right:8%;
  top:50%;
  border-top:1.5px dashed var(--grid)
}
/* Glyph size is locked to the board so the start dot stays on the stroke origin. */
.board-glyph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-thai);
  font-weight:700;
  font-size:69cqi;
  line-height:1;
  color:var(--ink);
  padding-bottom:.06em
}
/* ก is written in one stroke that begins at the head notch, not at the top of the arch. */
.board-dot{
  position:absolute;
  top:45.5%;
  left:35.5%;
  width:5.5cqi;
  height:5.5cqi;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 1.2cqi var(--pale),0 0 0 2.8cqi color-mix(in srgb,var(--teal) 26%,transparent);
  animation:board-pulse 2.6s var(--ease) infinite
}
@keyframes board-pulse{
  0%,100%{box-shadow:0 0 0 1.2cqi var(--pale),0 0 0 2.4cqi color-mix(in srgb,var(--teal) 26%,transparent)}
  50%{box-shadow:0 0 0 1.2cqi var(--pale),0 0 0 4.2cqi color-mix(in srgb,var(--teal) 10%,transparent)}
}
.board-tag{
  position:absolute;
  left:18px;
  bottom:16px;
  display:flex;
  align-items:baseline;
  gap:8px;
  font-size:.875rem;
  color:var(--muted)
}
.board-tag strong{
  color:var(--ink);
  font-weight:700;
  font-family:var(--font-thai)
}

/* ---------- hero ---------- */

.hero{
  width:100%;
  max-width:1440px;
  display:grid;
  grid-template-columns:1.07fr 1fr;
  gap:40px;
  /* The gutters must stop growing when the hero reaches its 1440px maximum. */
  padding:68px clamp(40px,calc((100vw - 1180px)/2),130px) 0;
  overflow:hidden;
  background:var(--deep);
  color:var(--on-deep);
  min-height:760px
}
.hero-copy{
  padding-top:60px;
  padding-bottom:80px;
  position:relative;
  z-index:1
}
.hero .eyebrow{
  color:var(--teal-bright)
}
.hero h1{
  font-size:clamp(3.6rem,6.2vw,5.6rem);
  font-weight:800;
  line-height:1.03;
  letter-spacing:-.045em
}
.hero h1 em{
  font-style:normal;
  color:var(--teal-bright)
}
.hero-description{
  font-size:1.2rem;
  line-height:1.75;
  max-width:440px;
  color:var(--on-deep-muted);
  margin-top:26px
}
.store-buttons{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:32px
}
.store-button{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  min-width:172px;
  min-height:72px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:11px 20px;
  text-align:left;
  background:var(--paper);
  color:var(--ink);
  text-decoration:none;
  line-height:1.25;
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease)
}
.store-button small{
  display:block;
  font-size:.75rem;
  letter-spacing:.07em;
  font-weight:700;
  font-variant-caps:all-small-caps;
  margin-bottom:4px;
  color:var(--muted)
}
.store-button strong{
  font-size:1.3rem;
  letter-spacing:-.02em
}
.store-button:not(:disabled):hover{
  background:var(--teal-wash);
  border-color:var(--teal);
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:0 10px 24px -16px #0009
}
.store-button:not(:disabled):active{
  transform:translateY(0);
  box-shadow:none
}
.store-button.coming-soon{
  cursor:default;
  background:var(--pale);
  color:var(--muted);
  opacity:1
}
.hero-note{
  font-size:.85rem;
  color:var(--on-deep-muted);
  margin-top:18px
}
.text-link{
  display:inline-block;
  color:var(--teal-bright);
  font-size:.9rem;
  font-weight:700;
  margin-top:28px;
  text-decoration:none;
  transition:transform var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease)
}
.text-link:hover{
  text-decoration:underline;
  transform:translateY(2px)
}
.hero-visual{
  position:relative;
  align-self:end;
  min-width:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:0 20px
}
.hero-visual:before{
  content:"";
  position:absolute;
  width:560px;
  height:560px;
  max-width:130%;
  top:110px;
  left:-25px;
  border-radius:50%;
  background:radial-gradient(circle,#0f6f6b 0,#16404c 50%,transparent 72%);
  opacity:.8
}
.hero-caption{
  display:flex;
  align-items:center;
  gap:15px;
  align-self:flex-start;
  margin-left:10px;
  margin-bottom:20px;
  position:relative;
  z-index:1
}
/* The ก beside the hero copy is the practice canvas in miniature. */
.hero-caption>span{
  position:relative;
  container-type:inline-size;
  flex:none;
  width:86px;
  height:86px;
  display:grid;
  place-items:center;
  border-radius:var(--r-md);
  background:var(--pale);
  color:var(--ink);
  font-family:var(--font-thai);
  font-weight:700;
  font-size:59px;
  line-height:1;
  padding-bottom:.06em;
  overflow:hidden;
  box-shadow:0 10px 30px -18px #000c
}
.hero-caption>span:before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:33.333% 33.333%
}
.hero-caption>span:after{
  content:"";
  position:absolute;
  top:45.5%;
  left:35.5%;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 0 3px var(--pale),0 0 0 6px color-mix(in srgb,var(--teal) 26%,transparent);
  animation:board-pulse-sm 2.6s var(--ease) infinite
}
@keyframes board-pulse-sm{
  0%,100%{box-shadow:0 0 0 3px var(--pale),0 0 0 6px color-mix(in srgb,var(--teal) 26%,transparent)}
  50%{box-shadow:0 0 0 3px var(--pale),0 0 0 10px color-mix(in srgb,var(--teal) 10%,transparent)}
}
.hero-caption strong{
  font-size:1rem
}
.hero-caption p{
  color:var(--on-deep-muted);
  font-size:.85rem
}
.hero-screen{
  width:280px;
  border:6px solid #30444f;
  border-radius:var(--r-device);
  box-shadow:0 26px 60px #0005;
  position:relative;
  transform:rotate(4deg);
  margin-bottom:-95px
}
.screen-caption{
  display:flex;
  gap:12px;
  align-items:center;
  position:absolute;
  right:-8px;
  bottom:70px;
  background:var(--paper);
  color:var(--ink);
  border-left:4px solid var(--teal);
  padding:14px 20px;
  border-radius:var(--r-sm);
  box-shadow:0 10px 40px #00000026;
  transform:rotate(-4deg)
}
.screen-caption span{
  font-size:.75rem;
  font-weight:700;
  color:var(--teal);
  border-right:1px solid var(--line);
  padding-right:12px
}
.screen-caption p{
  font-size:.85rem;
  font-weight:700
}

/* ---------- home sections ---------- */

.promise-strip{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  min-height:98px;
  border-bottom:1px solid var(--line);
  font-size:.9rem
}
.promise-strip strong{
  margin-right:16px
}
.promise-strip span,.promise-strip>p:last-child{
  color:var(--muted)
}
.learning-steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px
}
.step-number{
  display:block;
  font-size:1.75rem;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.04em;
  color:var(--teal);
  margin-bottom:22px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line)
}
.learning-step{
  transition:transform var(--t-slow) var(--ease)
}
.learning-step p{
  color:var(--muted);
  margin-top:13px;
  line-height:1.75
}
.inside-section{
  background:var(--pale);
  padding-inline:max(40px,calc((100% - 1180px)/2))
}
.screenshots{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:56px;
  max-width:1080px;
  margin:auto
}
.screenshots figure{
  margin:0;
  min-width:0
}
.screenshots img{
  width:100%;
  max-width:282px;
  margin:auto;
  border:5px solid #203340;
  border-radius:var(--r-device);
  box-shadow:0 15px 32px #16344218;
  transition:transform var(--t-slow) var(--ease),box-shadow var(--t-slow) var(--ease)
}
.screenshots figure:hover img{
  transform:translateY(-6px);
  box-shadow:0 26px 48px #16344229
}
.screenshots figcaption{
  margin-top:26px;
  text-align:center
}
.screenshots figcaption p{
  font-size:.95rem;
  color:var(--muted);
  margin:12px auto 0;
  max-width:300px
}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 60px
}
.feature-grid article{
  padding:32px 0;
  border-top:1px solid var(--line)
}
.feature-label{
  color:var(--teal);
  font-weight:700;
  font-size:.9rem;
  margin-bottom:16px
}
.feature-grid article>p:last-child{
  margin-top:15px;
  color:var(--muted);
  max-width:480px
}
.languages-section{
  border-block:1px solid var(--line);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:70px;
  align-items:start
}
.language-heading .muted{
  font-size:.9rem;
  margin-top:20px
}
.language-disclosure{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--pale);
  padding:22px;
  transition:border-color var(--t-fast) var(--ease)
}
.language-disclosure:hover{
  border-color:color-mix(in srgb,var(--teal) 40%,var(--line))
}
.language-disclosure summary{
  display:flex;
  justify-content:space-between;
  gap:20px;
  font-weight:700;
  font-size:.95rem;
  cursor:pointer;
  list-style:none;
  transition:color var(--t-fast) var(--ease)
}
.language-disclosure summary:hover{
  color:var(--teal)
}
.language-disclosure summary::-webkit-details-marker{
  display:none
}
.locale-count{
  color:var(--teal);
  white-space:nowrap;
  font-size:.85rem
}
.language-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px 22px;
  list-style:none;
  margin:26px 0 0;
  padding:22px 0 0;
  border-top:1px solid var(--line)
}
.language-list li{
  display:flex;
  flex-direction:column;
  min-width:0;
  overflow-wrap:anywhere
}
.language-list small{
  font-size:.8rem;
  color:var(--muted)
}
.faq-list{
  max-width:850px
}
.faq-list details{
  border-bottom:1px solid var(--line);
  padding:22px 0
}
.faq-list details:first-child{
  border-top:1px solid var(--line)
}
.faq-list summary{
  font-size:1.05rem;
  font-weight:700;
  cursor:pointer;
  list-style-position:outside;
  margin-left:20px;
  padding-left:8px;
  transition:color var(--t-fast) var(--ease)
}
.faq-list summary:hover{
  color:var(--teal)
}
.faq-list details>p{
  color:var(--muted);
  margin-top:14px;
  padding-left:28px;
  max-width:760px
}
.help-links{
  display:flex;
  flex-wrap:wrap;
  gap:18px 32px;
  margin-top:32px;
  font-size:.95rem;
  font-weight:700
}
.download-section{
  text-align:center;
  background:var(--deep);
  color:var(--on-deep);
  border-radius:var(--r-lg);
  padding:64px 28px
}
.download-section .eyebrow{
  color:var(--teal-bright)
}
.download-section>p:not(.eyebrow){
  color:var(--on-deep-muted);
  margin-top:20px
}
.download-section .store-buttons{
  justify-content:center
}

/* ---------- footer ---------- */

.site-footer{
  padding-block:64px 30px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:28px;
  font-size:.9rem
}
.footer-brand{
  font-size:1.35rem;
  color:var(--ink);
  text-decoration:none;
  font-weight:800;
  letter-spacing:-.03em
}
.footer-brand:hover{
  color:var(--teal);
  text-decoration:none
}
.site-footer p{
  color:var(--muted);
  font-size:.85rem;
  margin-top:8px
}
.site-footer nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:22px
}
.site-footer nav a{
  color:var(--muted);
  text-decoration:none;
  transition:color var(--t-fast) var(--ease)
}
.site-footer nav a:hover{
  color:var(--teal);
  text-decoration:underline
}
.copyright{
  grid-column:1/-1;
  border-top:1px solid var(--line);
  padding-top:25px
}

/* ---------- forms and controls ---------- */

.account-panel input:not([type=submit]),
.auth-card input:not([type=submit]){
  min-width:0;
  width:100%;
  font-size:1.0625rem;
  padding:14px 16px;
  border:2px solid var(--line);
  border-radius:var(--r-md);
  background:var(--pale);
  color:var(--ink);
  transition:border-color var(--t-slow) var(--ease),background var(--t-slow) var(--ease)
}
.account-panel input:not([type=submit]):hover,
.auth-card input:not([type=submit]):hover{
  border-color:color-mix(in srgb,var(--teal) 40%,var(--line))
}
.account-panel input:not([type=submit]):focus,
.auth-card input:not([type=submit]):focus{
  outline:none;
  border-color:var(--teal);
  background:var(--paper)
}
.account-panel input:not([type=submit]):focus-visible,
.auth-card input:not([type=submit]):focus-visible{
  outline:3px solid color-mix(in srgb,var(--teal) 45%,transparent);
  outline-offset:1px
}
/* The one Duolingo device worth taking: a solid edge that collapses under the press. */
.account-panel input[type=submit],
.auth-card input[type=submit]{
  min-height:52px;
  padding:14px 20px;
  border:0;
  border-radius:var(--r-md);
  background:var(--teal);
  color:var(--on-teal);
  font-size:1.0625rem;
  font-weight:800;
  letter-spacing:.01em;
  cursor:pointer;
  white-space:normal;
  box-shadow:0 4px 0 0 var(--teal-edge);
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),filter var(--t-fast) var(--ease)
}
.account-panel input[type=submit]:hover,
.auth-card input[type=submit]:hover{
  filter:brightness(1.07)
}
.account-panel input[type=submit]:active,
.auth-card input[type=submit]:active{
  transform:translateY(4px);
  box-shadow:0 0 0 0 var(--teal-edge)
}

.account-panel{
  max-width:760px;
  margin-block:64px 100px;
  padding:48px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper);
  box-shadow:var(--shadow-card);
  overflow-wrap:anywhere
}
.account-panel h1{
  font-size:clamp(1.8rem,4vw,2.5rem);
  margin-bottom:24px
}
.account-panel h2{
  font-size:1.35rem;
  margin:32px 0 14px;
  letter-spacing:-.02em
}
.account-panel p{
  margin:16px 0;
  color:var(--muted)
}
.account-panel form{
  display:grid;
  gap:14px;
  margin:28px 0
}
.account-panel label,.auth-card label{
  font-size:.9rem;
  font-weight:700;
  color:var(--ink)
}
.account-panel form[action="/account/delete"] input[type=submit]{
  background:var(--danger);
  color:#fff;
  box-shadow:0 4px 0 0 color-mix(in srgb,var(--danger) 70%,#000)
}
.account-panel form[action="/account/delete"] input[type=submit]:active{
  box-shadow:0 0 0 0 color-mix(in srgb,var(--danger) 70%,#000)
}
.message{
  border-left:4px solid var(--notice);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--notice-wash);
  padding:14px 18px;
  color:var(--notice-ink)
}
.account-panel .account-label{
  margin-bottom:0;
  font-size:.9rem
}
.account-panel .account-identity{
  margin-top:4px;
  color:var(--ink);
  font-size:1.2rem;
  font-weight:700
}
.account-section{
  border-top:1px solid var(--line);
  margin-top:32px
}
.account-panel form[action="/account/logout"]{
  max-width:320px
}
.account-panel form[action="/account/logout"] input[type=submit]{
  background:var(--paper);
  color:var(--ink);
  box-shadow:0 0 0 2px var(--line) inset,0 4px 0 0 var(--line)
}
.account-panel form[action="/account/logout"] input[type=submit]:hover{
  filter:none;
  box-shadow:0 0 0 2px var(--teal) inset,0 4px 0 0 var(--teal-edge)
}
.account-panel form[action="/account/logout"] input[type=submit]:active{
  box-shadow:0 0 0 2px var(--teal) inset
}
.account-danger .danger-link{
  color:var(--danger);
  font-weight:700;
  display:inline-block;
  padding-block:10px
}

/* ---------- sign-in ---------- */

.auth-layout{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(32px,6vw,88px);
  align-items:center;
  margin-block:56px 96px
}
.auth-aside{
  display:grid;
  gap:26px;
  min-width:0
}
.auth-aside h1{
  font-size:clamp(2.1rem,4vw,3rem);
  font-weight:800;
  letter-spacing:-.025em
}
.auth-aside h1 em{
  font-style:normal;
  color:var(--teal)
}
.auth-lede{
  color:var(--muted);
  max-width:34ch;
  font-size:1.0625rem
}
.auth-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,40px);
  display:grid;
  gap:22px;
  box-shadow:var(--shadow-card);
  min-width:0;
  overflow-wrap:anywhere
}
.auth-card h2{
  font-size:1.75rem;
  font-weight:800;
  letter-spacing:-.02em
}
.auth-card>div:first-child h2{
  margin-bottom:6px
}
.auth-card>div:first-child p,.auth-card>p{
  color:var(--muted);
  font-size:.9375rem
}
.auth-card form{
  display:grid;
  gap:16px;
  margin:0
}
.auth-card form label{
  margin-bottom:-8px
}
.auth-meta{
  display:grid;
  gap:4px;
  font-size:.875rem;
  color:var(--muted)
}
.auth-divider{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:14px;
  color:var(--muted);
  font-size:.8125rem;
  font-weight:700;
  font-variant-caps:all-small-caps;
  letter-spacing:.06em
}
.auth-divider:before,.auth-divider:after{
  content:"";
  border-top:1px solid var(--line)
}
.ghost-link{
  font-size:1rem;
  font-weight:700;
  padding:13px 18px;
  border:2px solid var(--line);
  border-radius:var(--r-md);
  background:transparent;
  color:var(--ink);
  text-align:center;
  text-decoration:none;
  display:block;
  transition:border-color var(--t-slow) var(--ease),background var(--t-slow) var(--ease),transform var(--t-fast) var(--ease)
}
.ghost-link:hover{
  border-color:var(--teal);
  background:var(--teal-wash);
  color:var(--ink);
  text-decoration:none
}
.ghost-link:active{
  transform:translateY(1px)
}

/* ---------- responsive ---------- */

@media(min-width:1440px){
  .hero{
    border-radius:0 0 var(--r-lg) var(--r-lg)
  }
}
@media(max-width:1000px){
  .header-inner nav{
    gap:18px
  }
  .hero{
    gap:20px;
    padding-top:40px;
    min-height:690px
  }
  .hero-copy{
    padding-top:38px
  }
  .hero h1{
    font-size:4.4rem
  }
  .hero-screen{
    width:250px;
    margin-bottom:-65px
  }
  .screen-caption{
    right:-10px;
    padding:12px
  }
  .hero-visual{
    padding:0
  }
  .learning-steps{
    gap:22px
  }
  .screenshots{
    gap:32px
  }
  .languages-section{
    gap:40px
  }
  .site-footer{
    grid-template-columns:1fr
  }
  .site-footer nav{
    justify-content:flex-start
  }
}
@media(max-width:860px){
  .auth-layout{
    grid-template-columns:1fr;
    margin-block:36px 64px
  }
  .auth-aside .board{
    max-width:300px
  }
}
@media(max-width:760px){
  .container{
    width:calc(100% - 40px)
  }
  .section{
    padding-block:64px
  }
  .header-inner{
    flex-wrap:wrap;
    gap:16px;
    min-height:0;
    padding-block:18px
  }
  .brand{
    font-size:1.3rem
  }
  .brand img{
    width:36px;
    height:36px
  }
  .header-inner nav{
    width:100%;
    gap:0;
    justify-content:space-between;
    font-size:.85rem;
    flex-wrap:wrap
  }
  .nav-download{
    padding:8px 10px
  }
  .hero{
    width:100%;
    grid-template-columns:1fr;
    padding:45px 24px 0;
    gap:12px;
    min-height:0
  }
  .hero-copy{
    padding:0 0 22px
  }
  .hero h1{
    font-size:clamp(3.2rem,10.5vw,4.6rem)
  }
  .hero-description{
    font-size:1.08rem;
    max-width:510px
  }
  .hero-note{
    font-size:.8rem
  }
  .hero-visual{
    width:100%;
    max-width:440px;
    justify-self:center;
    padding-top:12px
  }
  .hero-caption{
    align-self:flex-start;
    margin-left:0
  }
  .hero-caption>span{
    width:72px;
    height:72px;
    font-size:49px
  }
  .hero-caption>span:after{
    width:9px;
    height:9px
  }
  .hero-screen{
    width:245px;
    margin-bottom:-115px
  }
  .screen-caption{
    bottom:42px;
    right:0
  }
  .hero-visual:before{
    max-width:100%;
    left:0;
    top:20px
  }
  .promise-strip{
    min-height:0;
    padding-block:24px;
    align-items:flex-start;
    flex-direction:column;
    gap:8px
  }
  .promise-strip span{
    display:block;
    margin-top:4px
  }
  .section-heading{
    margin-bottom:30px
  }
  .learning-steps{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:30px 24px
  }
  .step-number{
    margin-bottom:16px
  }
  .inside-section{
    padding-inline:24px
  }
  .screenshots{
    gap:30px;
    grid-template-columns:1fr
  }
  .screenshots figure{
    display:grid;
    grid-template-columns:minmax(100px,.8fr) minmax(0,1fr);
    gap:24px;
    align-items:center
  }
  .screenshots img{
    border-radius:var(--r-lg);
    border-width:4px;
    max-width:230px
  }
  .screenshots figcaption{
    text-align:left;
    margin:0
  }
  .screenshots figcaption p{
    margin-inline:0
  }
  .fine-print{
    text-align:left
  }
  .feature-grid{
    grid-template-columns:1fr
  }
  .feature-grid article{
    padding-block:28px
  }
  .languages-section{
    grid-template-columns:1fr;
    gap:30px
  }
  .download-section{
    padding:44px 22px
  }
  .download-section .store-buttons{
    gap:10px
  }
  .store-button{
    min-width:160px;
    padding:12px 16px
  }
  .site-footer{
    padding-top:40px
  }
  .site-footer nav{
    gap:16px 22px
  }
  .account-panel{
    padding:28px 24px;
    margin-block:35px 60px
  }
  .account-panel h1{
    font-size:2rem
  }
  .section-intro{
    font-size:1.05rem
  }
}
@media(max-width:380px){
  .header-inner nav{
    gap:12px;
    justify-content:flex-start
  }
  .nav-download{
    border:0;
    padding:0
  }
  .nav-download:hover{
    background:none;
    color:var(--teal)
  }
  .hero{
    padding-inline:20px
  }
  .store-buttons{
    flex-direction:column;
    align-items:stretch
  }
  .store-button{
    width:100%
  }
  .hero-screen{
    width:220px
  }
  .screen-caption{
    padding:10px
  }
  .screen-caption p{
    font-size:.8rem
  }
  .learning-steps{
    gap:24px 18px
  }
  .language-list{
    grid-template-columns:1fr
  }
  .screenshots figure{
    gap:18px
  }
  .screenshots h3{
    font-size:1.1rem
  }
}
@media(prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto
  }
  *,*:before,*:after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important
  }
}