/* Colors, fonts and radii follow brand/brand-guide.md and the design system. */
:root {
  /* White page, navy text, blue as the point color; logo red only in the wordmark. */
  --page: #FFFFFF;
  --surface: #FFFFFF;
  --surface-tint: #EFF5FE;
  --surface-sunk: #F5F7FA;
  --line: #E7EAF0;
  --ink: #1E2638;
  --ink-muted: #687085;
  --brand: #4A8BE8;
  --brand-strong: #2F6BD0;
  --logo-red: #E5484D;
  --ok-ink: #2E7A27;
  --block-orange: #FF8A5C;
  --block-yellow: #FFC35C;
  --block-green: #6CC75F;
  --block-blue: #5FA4F5;
  --block-violet: #A08BE0;
  --block-pink: #FFB3B0;
  --on-block: #1E2638;
  --on-brand: #FFFFFF;

  --font-display: "Fredoka", "Noto Sans Myanmar", "Noto Sans KR", sans-serif;
  --font-korean: "Jua", "Noto Sans KR", sans-serif;
  --font-body: "Noto Sans Myanmar", "Noto Sans KR", system-ui, sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow: 0 1px 2px rgba(30, 38, 56, .05), 0 6px 20px rgba(30, 38, 56, .06);
  --gutter: 16px;
  --max: 1040px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #13161D;
    --surface: #1B1F28;
    --surface-tint: #1F2A3C;
    --surface-sunk: #222733;
    --line: #2F3542;
    --ink: #EEF1F6;
    --ink-muted: #A0A8B8;
    --brand: #7AB0F5;
    --brand-strong: #8DBBF7;
    --logo-red: #FF7A7A;
    --ok-ink: #8FD884;
    --block-orange: #FF9C74;
    --block-yellow: #FFCF7A;
    --block-green: #7FD372;
    --block-blue: #78B4F7;
    --block-violet: #B3A1E8;
    --block-pink: #E88C89;
    --on-brand: #10151F;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75; /* Burmese stacks above and below the line */
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }
a { color: var(--brand-strong); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.45; margin: 0; }
p { margin: 0; }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  border-radius: 6px;
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--ink);
  color: var(--surface);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  z-index: 20;
}
.skip:focus { left: 8px; }

/* Unit colors: 한글 orange, 회화 yellow, TOPIK blue, EPS green, review violet */
.unit-orange { --unit: var(--block-orange); }
.unit-yellow { --unit: var(--block-yellow); }
.unit-green  { --unit: var(--block-green); }
.unit-blue   { --unit: var(--block-blue); }
.unit-violet { --unit: var(--block-violet); }

/* ---------- Header ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 60px;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  white-space: nowrap;
}
.brand img { width: 40px; height: auto; margin-right: 4px; }
.brand-ko {
  font-family: var(--font-korean);
  font-size: 1.15rem;
  color: var(--logo-red);
  line-height: 1;
}
.brand-en {
  font-family: "Fredoka", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: .02em;
  color: var(--ink);
  line-height: 1;
}

.lang {
  display: flex;
  padding: 3px;
  gap: 2px;
  background: var(--surface-sunk);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.lang button {
  font: inherit;
  font-size: .82rem;
  line-height: 1;
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  white-space: nowrap;
}
.lang button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
  box-shadow: var(--shadow);
}

/* ---------- Layout ---------- */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 56px;
}

.section { margin-top: 48px; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.section-head h2 { font-size: 1.35rem; }
@media (max-width: 520px) {
  .section-head { flex-direction: column; align-items: flex-start; gap: 0; }
}
.section-head p { color: var(--ink-muted); font-size: .9rem; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--ink-muted);
}
.eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--unit, var(--brand));
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 2px solid transparent;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, filter .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brand-strong); color: var(--on-brand); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand); }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: .9rem; }
.btn[aria-disabled="true"] {
  background: var(--surface-sunk);
  color: var(--ink-muted);
  border-color: var(--line);
  pointer-events: none;
  font-weight: 400;
}
.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  margin: 0 calc(-1 * var(--gutter));
  padding: 36px var(--gutter) 8px;
  display: grid;
  gap: 8px;
  isolation: isolate;
}
/* Soft glow in the logo blues and orange, no hard box */
.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 -40px;
  z-index: -1;
  background: radial-gradient(closest-side at 78% 45%, color-mix(in srgb, var(--block-blue) 16%, transparent), transparent);
}
.hero h1 {
  font-size: clamp(1.6rem, 5.4vw, 2.6rem);
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: -.01em;
  word-break: keep-all;
}
.hero h1 .w { white-space: nowrap; }
/* Burmese script runs wide and tall, so its headline is set a step smaller */
html[lang="my"] .hero h1 { font-size: clamp(1.35rem, 4.4vw, 2.05rem); }
html[lang="my"] .hero h1 em { display: inline; } /* Burmese runs on after the comma */
html[lang="en"] .hero h1 { font-size: clamp(1.3rem, 3.4vw, 2rem); }
.hero h1 em {
  display: block; /* the highlighted half always starts its own line */
  font-style: normal;
  color: var(--brand-strong);
}
.hero .lead {
  color: var(--ink-muted);
  margin-top: 12px;
  max-width: 34em;
}
.hero .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.hero .btn-primary { box-shadow: 0 6px 16px color-mix(in srgb, var(--brand-strong) 28%, transparent); }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 20px;
  padding: 0;
  list-style: none;
}
.chips li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .84rem;
  color: var(--ink-muted);
}
.chips svg { width: 15px; height: 15px; color: var(--block-green); flex: none; }

/* 한·국·어 blocks stacked like stairs, taken from the logo blocks */
.hero-art {
  position: relative;
  justify-self: center;
  width: min(78%, 300px);
  aspect-ratio: 3 / 2.1;
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 6%;
}
.tile {
  aspect-ratio: 1;
  border-radius: 22%;
  display: grid;
  place-items: center;
  font-family: var(--font-korean);
  font-size: clamp(2rem, 9vw, 3.4rem);
  line-height: 1;
  color: #fff;
  background: var(--tile);
  box-shadow: inset 0 -7px 0 rgba(0, 0, 0, .14), 0 10px 22px color-mix(in srgb, var(--tile) 30%, transparent);
}
.tile-orange { --tile: var(--block-orange); }
.tile-blue   { --tile: var(--block-blue); }
.tile-green  { --tile: var(--block-green); }
.hero-art .tile-blue  { margin-bottom: 30%; }
.hero-art .tile-green { margin-bottom: 60%; }
.cube {
  position: absolute;
  right: 4%;
  top: -4%;
  width: 14%;
  aspect-ratio: 1;
  border-radius: 22%;
  background: var(--block-yellow);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .12);
  transform: rotate(12deg);
}
@media (min-width: 760px) {
  .hero {
    grid-template-columns: 1.3fr 1fr;
    align-items: center;
    padding: 64px var(--gutter) 40px;
    gap: 40px;
  }
  .hero-art { width: 100%; max-width: 340px; margin-top: 0; }
}

/* ---------- Roadmap ---------- */
.roadmap {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: step;
}
.roadmap li {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding-bottom: 18px;
}
.roadmap li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 2px;
  width: 2px;
  background: var(--line);
}
.roadmap .block {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: "Fredoka", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  background: color-mix(in srgb, var(--unit) 22%, var(--surface));
  color: var(--ink);
  box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--unit) 55%, var(--surface));
}
.roadmap .soon .block {
  background: var(--surface-sunk);
  color: var(--ink-muted);
  box-shadow: inset 0 0 0 2px var(--line);
}
.roadmap .block svg { width: 18px; height: 18px; }
.roadmap .body { padding-top: 2px; }
.roadmap h3 {
  font-size: 1.05rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
}
.roadmap p { color: var(--ink-muted); font-size: .9rem; }
.roadmap .soon h3 { color: var(--ink-muted); }
.pill {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  line-height: 1;
  padding: 5px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.pill-open { background: color-mix(in srgb, var(--block-green) 18%, var(--surface)); color: var(--ok-ink); }
.pill-soon { background: var(--surface-sunk); color: var(--ink-muted); box-shadow: inset 0 0 0 1px var(--line); }

@media (min-width: 760px) {
  .roadmap {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
  .roadmap li {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    align-content: start;
    align-items: start;
    gap: 10px;
    padding: 0;
  }
  .roadmap li:not(:last-child)::after {
    left: 52px;
    right: -6px;
    top: 21px;
    bottom: auto;
    width: auto;
    height: 2px;
  }
}

.step-label {
  display: block;
  font-family: "Fredoka", var(--font-body);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-muted);
}
.roadmap p b { color: var(--ink); font-weight: 700; }
.branches { display: grid; gap: 6px; margin-top: 8px; }
.branch {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--unit);
  line-height: 1.5;
}
.branch strong { display: block; font-size: .9rem; }
.branch small { color: var(--ink-muted); font-size: .8rem; }
.step-link {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  min-height: 36px;
  margin-top: 4px;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
}
.step-link svg { width: 16px; height: 16px; }

/* ---------- Where-to-start helper ---------- */
.helper {
  margin-top: 16px;
  padding: 18px 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
  display: grid;
  gap: 12px;
}
.helper h2 { font-size: 1.1rem; }
.helper p { color: var(--ink-muted); font-size: .9rem; }
.helper .q { color: var(--ink); font-weight: 700; font-size: 1rem; }
.helper .note { margin-top: 4px; }
.helper-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
@media (min-width: 760px) {
  .helper { grid-template-columns: 1fr 1.3fr; align-items: center; padding: 22px 28px; }
}

/* ---------- Lesson cards ---------- */
.lesson-grid {
  display: grid;
  gap: 12px;
}
@media (min-width: 600px) { .lesson-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 920px) { .lesson-grid { grid-template-columns: repeat(3, 1fr); } }

.lesson-card {
  display: grid;
  grid-template-columns: 64px 1fr 20px;
  gap: 14px;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.lesson-card:hover {
  border-color: color-mix(in srgb, var(--brand) 40%, var(--line));
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.glyph {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--tile, var(--block-blue));
  color: #fff;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .13);
  font-family: var(--font-korean);
  font-size: 2.1rem;
  line-height: 1;
}
.lesson-card .num {
  font-size: .78rem;
  font-weight: 700;
  color: var(--ink-muted);
}
.lesson-card h3 {
  font-size: 1.02rem;
  line-height: 1.5;
}
.lesson-card .sub {
  color: var(--ink-muted);
  font-size: .85rem;
  line-height: 1.5;
}
.lesson-card .chev { color: var(--ink-muted); width: 20px; height: 20px; }

.tile-violet { --tile: var(--block-violet); }
.tile-red    { --tile: #F47174; }
/* A lesson page uses its card's block color for every accent */
.lesson-page { --unit: var(--tile); }
.lesson-page .jamo-row {
  background: color-mix(in srgb, var(--tile) 14%, var(--surface));
  color: color-mix(in srgb, var(--tile) 65%, var(--ink));
}
.lesson-page .file .icon {
  background: color-mix(in srgb, var(--tile) 16%, var(--surface));
  color: color-mix(in srgb, var(--tile) 65%, var(--ink));
}
.lesson-card:hover { border-color: color-mix(in srgb, var(--tile) 55%, var(--line)); }

/* ---------- Lesson page ---------- */
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  margin-top: 12px;
  font-size: .9rem;
  text-decoration: none;
  color: var(--ink-muted);
}
.crumb:hover { color: var(--brand-strong); }
.crumb svg { width: 18px; height: 18px; }

.progress {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .8rem;
  color: var(--ink-muted);
  margin: 4px 0 18px;
}
.progress .bar {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-sunk);
  overflow: hidden;
}
.progress .bar span {
  display: block;
  height: 100%;
  background: var(--unit);
  border-radius: inherit;
}

.lesson-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
}
.lesson-head .glyph { width: 76px; height: 76px; font-size: 2.6rem; border-radius: 18px; }
.lesson-head h1 { font-size: clamp(1.4rem, 4.5vw, 2rem); }
.lesson-head .sub { color: var(--ink-muted); }

.jamo-row {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--surface-tint);
  border-radius: var(--radius-md);
  font-family: var(--font-korean);
  font-size: clamp(1.4rem, 5vw, 2rem);
  line-height: 1.6;
  color: var(--brand-strong);
  word-spacing: .3em;
  word-break: keep-all;
}

.lesson-body {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}
@media (min-width: 860px) {
  .lesson-body { grid-template-columns: 1.7fr 1fr; align-items: start; }
}

.video {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-sunk);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  color: var(--ink-muted);
  font-size: .9rem;
}
.video iframe { width: 100%; height: 100%; border: 0; }
.video .play {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  color: var(--ink-muted);
}
.video .play svg { width: 22px; height: 22px; margin-left: 3px; }

.files { display: grid; gap: 10px; }
.files h2 { font-size: 1.05rem; margin-bottom: 2px; }
.file {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--surface);
}
.file .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--surface-tint);
  color: var(--brand-strong);
}
.file .icon svg { width: 20px; height: 20px; }
.file strong { display: block; font-size: .95rem; line-height: 1.5; }
.file small { color: var(--ink-muted); }
.file .btn { grid-column: 1 / -1; width: 100%; }
@media (min-width: 480px) and (max-width: 859px) {
  .file { grid-template-columns: 40px 1fr auto; }
  .file .btn { grid-column: auto; width: auto; }
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 28px;
}
.pager a {
  display: grid;
  gap: 2px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--ink);
  min-height: 64px;
}
.pager a:hover { border-color: var(--brand); }
.pager small { color: var(--ink-muted); font-size: .78rem; }
.pager strong { font-size: .92rem; line-height: 1.5; }
.pager .next { text-align: right; grid-column: 2; }

/* ---------- Waitlist, ads ---------- */
.waitlist {
  margin-top: 48px;
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  background: var(--surface-tint);
  display: grid;
  gap: 14px;
  justify-items: start;
}
.waitlist h2 { font-size: 1.2rem; }
.waitlist p { color: var(--ink-muted); }
@media (min-width: 760px) {
  .waitlist { grid-template-columns: 1fr auto; align-items: center; padding: 28px 36px; }
}

.ad-slot {
  margin-top: 32px;
  min-height: 100px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--ink-muted);
  font-size: .75rem;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px var(--gutter) calc(28px + env(safe-area-inset-bottom));
  display: grid;
  justify-items: center;
  gap: 10px;
  color: var(--ink-muted);
  font-size: .82rem;
}
.footer img { width: 44px; opacity: .9; }
.social { display: flex; gap: 18px; }
.social a { color: var(--ink); font-weight: 700; text-decoration: none; }
.social a:hover { color: var(--brand-strong); }

/* ---------- Small screens ---------- */
@media (max-width: 420px) {
  .brand img { width: 34px; }
  .brand-ko { font-size: 1rem; }
  .brand-en { font-size: .9rem; }
  .lang button { padding: 0 9px; font-size: .78rem; }
}
@media (max-width: 350px) {
  .brand-en { display: none; }
}

/* ---------- Phones: compact type, small logo ---------- */
@media (max-width: 520px) {
  body { font-size: 15px; }
  .topbar-inner { height: 50px; }
  .brand { gap: 4px; }
  .brand img { width: 22px; margin-right: 2px; }
  .brand-ko { font-size: .82rem; }
  .brand-en { font-size: .74rem; }
  .lang button { min-height: 28px; padding: 0 8px; font-size: .72rem; }

  .hero { padding-top: 20px; }
  .hero h1, html[lang="my"] .hero h1 { font-size: 1.2rem; line-height: 1.6; }
  html[lang="my"] .hero h1 { font-size: 1.08rem; }
  .hero .actions { margin-top: 16px; gap: 8px; }
  .btn { min-height: 42px; padding: 0 16px; font-size: .88rem; }
  .btn svg { width: 16px; height: 16px; }
  .chips { margin-top: 14px; gap: 4px 12px; }
  .chips li { font-size: .74rem; }
  .hero-art { width: 150px; margin-top: 8px; }
  .tile { font-size: 1.6rem; box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .14), 0 6px 14px color-mix(in srgb, var(--tile) 30%, transparent); }

  .section { margin-top: 32px; }
  .section-head { margin-bottom: 12px; }
  .section-head h2 { font-size: 1.05rem; }
  .section-head p, .eyebrow { font-size: .74rem; }

  .helper { padding: 14px 16px; gap: 8px; }
  .helper h2 { font-size: .95rem; }
  .helper p { font-size: .78rem; }
  .helper .q { font-size: .88rem; }

  #roadmap { padding: 18px 14px 4px; }
  .roadmap li { grid-template-columns: 34px 1fr; gap: 10px; padding-bottom: 14px; }
  .roadmap li:not(:last-child)::after { left: 16px; top: 36px; }
  .roadmap .block { width: 34px; height: 34px; border-radius: 10px; font-size: .9rem; }
  .roadmap .block svg { width: 15px; height: 15px; }
  .roadmap h3 { font-size: .9rem; }
  .roadmap p { font-size: .8rem; }
  .step-label { font-size: .66rem; }
  .pill { font-size: .66rem; padding: 4px 8px; }
  .branch strong { font-size: .8rem; }
  .branch small { font-size: .72rem; }
  .step-link { font-size: .8rem; min-height: 32px; }

  .lesson-grid { gap: 10px; }
  .lesson-card { grid-template-columns: 46px 1fr 16px; gap: 12px; padding: 12px; }
  .glyph { width: 46px; height: 46px; border-radius: 12px; font-size: 1.5rem; }
  .lesson-card .num { font-size: .7rem; }
  .lesson-card h3 { font-size: .9rem; }
  .lesson-card .sub { font-size: .76rem; }
  .lesson-card .chev { width: 16px; height: 16px; }

  .lesson-head { gap: 12px; }
  .lesson-head .glyph { width: 56px; height: 56px; font-size: 1.9rem; border-radius: 14px; }
  .lesson-head h1 { font-size: 1.15rem; }
  .jamo-row { font-size: 1.15rem; padding: 10px 14px; }
  .files h2 { font-size: .95rem; }
  .file strong { font-size: .88rem; }
  .pager strong { font-size: .84rem; }
  .waitlist h2 { font-size: 1rem; }

  .footer { font-size: .72rem; }
  .footer img { width: 30px; }
}

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

/* Roadmap sits on a soft panel so it reads as one guide */
#roadmap {
  background: var(--surface-sunk);
  border-radius: var(--radius-lg);
  padding: 24px 20px 8px;
}
#roadmap .branch { background: var(--surface); }
@media (min-width: 760px) {
  #roadmap { padding: 32px 32px 20px; }
}