:root {
  --brand: #0048A9;
  --brand-strong: #003A88;
  --brand-soft: #EDF4FF;
  --ink: #111827;
  --text: #374151;
  --muted: #6B7280;
  --line: #E5E7EB;
  --surface: #FFFFFF;
  --surface-muted: #F7F8FA;
  --success: #18794E;
  --danger: #B42318;
  --shadow-sm: 0 8px 24px rgba(17, 24, 39, .06);
  --shadow-md: 0 16px 40px rgba(17, 24, 39, .08);
  --radius-md: 16px;
  --radius-lg: 24px;
  --container: 1180px;
  font-family: Inter, Manrope, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; background: var(--surface); color: var(--text); line-height: 1.6; }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--ink); line-height: 1.14; letter-spacing: -.025em; }
h1 { font-size: clamp(2.6rem, 6vw, 5.35rem); }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: 1.2rem; }
:focus-visible { outline: 3px solid rgba(0,72,169,.25); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
.main-content { flex: 1; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.narrow-container { max-width: 760px; }
.section { padding: 96px 0; }
.section--muted, .dashboard-page, .auth-page { background: var(--surface-muted); }
.page-hero { padding-top: 84px; }
.eyebrow { display: inline-flex; color: var(--brand); font-size: .82rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; margin-bottom: 14px; }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h1, .section-heading h2 { margin-bottom: 14px; }
.section-heading p { margin-bottom: 0; color: var(--muted); font-size: 1.05rem; }
.section-heading--center { text-align: center; margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.98); border-bottom: 1px solid var(--line); }
.navbar { min-height: 76px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--brand); font-weight: 850; font-size: 1.24rem; letter-spacing: -.03em; }
.brand__logo { width: 38px; height: 38px; object-fit: contain; }
.navbar__panel { display: contents; }
.nav-links { display: flex; align-items: center; justify-content: center; gap: 30px; }
.nav-link { position: relative; text-decoration: none; color: var(--text); font-size: .95rem; font-weight: 650; padding: 26px 0 23px; transition: color .18s ease; }
.nav-link:hover, .nav-link--active { color: var(--brand); }
.nav-link--active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 17px; height: 2px; background: var(--brand); border-radius: 999px; }
.navbar__actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.menu-button { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
.menu-button span { width: 18px; height: 2px; background: var(--ink); border-radius: 999px; }

.button { min-height: 46px; padding: 11px 20px; border-radius: 12px; border: 1px solid transparent; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; font-weight: 750; transition: transform .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-1px); }
.button--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 18px rgba(0,72,169,.18); }
.button--primary:hover { background: var(--brand-strong); box-shadow: 0 10px 22px rgba(0,72,169,.22); }
.button--outline { border-color: var(--brand); color: var(--brand); background: transparent; }
.button--outline:hover { background: var(--brand-soft); }
.button--ghost { color: var(--ink); background: transparent; border-color: var(--line); }
.button--ghost:hover { background: var(--surface-muted); }
.button--small { min-height: 40px; padding: 8px 15px; font-size: .9rem; }
.button--full { width: 100%; }
.text-button { border: 0; background: transparent; color: var(--brand); font-weight: 750; padding: 10px 0 0; }

.hero { min-height: calc(100vh - 76px); display: flex; align-items: center; overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 74px; }
.hero__content { max-width: 700px; }
.hero h1 { margin-bottom: 24px; }
.hero h1 span { color: var(--brand); }
.hero__lead { font-size: clamp(1.04rem, 2vw, 1.24rem); max-width: 590px; color: var(--muted); margin-bottom: 32px; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero__visual--chat {
  min-height: 520px;
}

.hero-chat {
  position: relative;
  z-index: 1;

  width: min(570px, 100%);

  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-chat__image {
  display: block;

  width: 100%;
  height: auto;

  object-fit: contain;

  transform: translateY(-4px);

  filter: drop-shadow(
    0 18px 30px
    rgba(0, 72, 169, 0.06)
  );
}

.hero__visual--chat .hero__stat--one {
  left: -4px;
  bottom: 42px;
  z-index: 2;
}

.hero__visual--chat .hero__stat--two {
  right: -2px;
  top: 48px;
  z-index: 2;
}
.hero__stat { position: absolute; z-index: 2; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); border-radius: 16px; padding: 14px 18px; display: grid; min-width: 130px; }
.hero__stat strong { color: var(--brand); font-size: 1.6rem; line-height: 1; }
.hero__stat span { color: var(--muted); font-size: .84rem; margin-top: 6px; }
.hero__stat--one { left: 18px; bottom: 70px; }
.hero__stat--two { right: 0; top: 76px; }

.benefit-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.benefit-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; min-height: 320px; box-shadow: var(--shadow-sm); }
.benefit-card__number { display: inline-flex; width: 48px; height: 48px; align-items: center; justify-content: center; border-radius: 12px; background: var(--brand-soft); color: var(--brand); font-weight: 800; margin-bottom: 54px; }
.benefit-card h3 { margin-bottom: 14px; font-size: 1.34rem; }
.benefit-card p { margin: 0; color: var(--muted); }
.steps { max-width: 870px; margin: 0 auto; display: grid; gap: 14px; }
.step-card { border: 1px solid var(--line); border-radius: var(--radius-md); padding: 22px 24px; display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 12px; background: #fff; transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.step-card:hover { border-color: #cbd7e8; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.step-card > span { color: var(--brand); font-size: 1.2rem; font-weight: 850; }
.step-card h3 { margin-bottom: 4px; }
.step-card p { margin: 0; color: var(--muted); }
.section-cta { text-align: center; margin-top: 32px; }

.dictionary-heading { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; }
.dictionary-heading > div:first-child { max-width: 760px; }
.dictionary-count { flex: 0 0 auto; padding: 18px 20px; border-radius: 14px; border: 1px solid var(--line); min-width: 130px; display: grid; background: #fff; }
.dictionary-count strong { font-size: 1.8rem; color: var(--brand); line-height: 1; }
.dictionary-count span { color: var(--muted); font-size: .83rem; margin-top: 6px; }
.dictionary-tools { display: grid; gap: 18px; margin-bottom: 36px; }
.search-bar { position: relative; display: block; max-width: 620px; }
.search-bar__icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 1.35rem; }
.search-bar input { width: 100%; height: 52px; padding: 0 18px 0 48px; border: 1px solid var(--line); border-radius: 13px; background: #fff; color: var(--ink); outline: none; transition: border-color .16s ease, box-shadow .16s ease; }
.search-bar input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(0,72,169,.08); }
.search-bar input::placeholder { color: #9ca3af; }
.category-filter { display: flex; flex-wrap: wrap; gap: 9px; }
.filter-chip { min-height: 40px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--text); font-weight: 650; transition: background-color .16s ease, border-color .16s ease, color .16s ease; }
.filter-chip:hover { border-color: #b9c6d8; }
.filter-chip--active { border-color: var(--brand); background: var(--brand); color: #fff; }
.dictionary-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.dictionary-card { border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; overflow: hidden; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.dictionary-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #d4dbe5; }
.dictionary-card__media { aspect-ratio: 16/9; background: #eef2f7; overflow: hidden; }
.dictionary-card__media iframe { width: 100%; height: 100%; border: 0; }
.video-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--muted); font-size: .86rem; text-align: center; padding: 20px; }
.video-placeholder__icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: #fff; background: var(--brand); padding-left: 3px; }
.dictionary-card__body { padding: 22px; }
.dictionary-card__category { display: inline-block; color: var(--brand); background: var(--brand-soft); padding: 5px 9px; border-radius: 999px; font-size: .72rem; font-weight: 800; margin-bottom: 11px; }
.dictionary-card h2 { font-size: 1.55rem; margin-bottom: 10px; }
.dictionary-card__body > p { color: var(--muted); font-size: .93rem; min-height: 88px; }
.dictionary-card__example { padding-top: 15px; border-top: 1px solid var(--line); }
.dictionary-card__example span { color: var(--muted); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.dictionary-card__example p { margin: 5px 0 0; font-size: .9rem; color: var(--ink); }
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 42px; }
.pagination__button { min-width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; border-radius: 10px; color: var(--text); font-weight: 750; }
.pagination__button:hover:not(:disabled) { border-color: var(--brand); color: var(--brand); }
.pagination__button--active { background: var(--brand); color: #fff; border-color: var(--brand); }

.empty-state, .coming-soon { border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; padding: 62px 28px; text-align: center; box-shadow: var(--shadow-sm); }
.empty-state > span:first-child, .coming-soon__icon { width: 64px; height: 64px; border-radius: 18px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; margin: 0 auto 18px; font-size: 1.7rem; font-weight: 800; }
.empty-state h1, .empty-state h2, .coming-soon h1 { margin-bottom: 12px; }
.empty-state p, .coming-soon p { color: var(--muted); max-width: 570px; margin-inline: auto; }
.empty-state .button { margin-top: 12px; }
.coming-soon__note { font-size: .92rem; margin-bottom: 0; }
.error-code { width: auto !important; height: auto !important; background: transparent !important; font-size: 4rem !important; line-height: 1 !important; }

.about-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 84px; align-items: start; }
.about-intro { position: sticky; top: 120px; }
.about-intro h1 { margin-bottom: 18px; }
.about-intro > p { color: var(--muted); font-size: 1.05rem; max-width: 460px; }
.about-logo { width: 210px; margin-top: 36px; opacity: .12; }
.about-sections { border-top: 1px solid var(--line); }
.about-section { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 32px 0; border-bottom: 1px solid var(--line); }
.about-section > span { color: var(--brand); font-weight: 850; }
.about-section h2 { font-size: 1.5rem; margin-bottom: 10px; }
.about-section p { color: var(--muted); margin: 0; }
.about-future { margin-top: 28px; border-radius: var(--radius-md); background: var(--brand); color: #fff; padding: 28px; }
.about-future h2, .about-future p { color: #fff; }
.about-future h2 { font-size: 1.5rem; margin-bottom: 10px; }
.about-future p { margin-bottom: 0; opacity: .86; }

.auth-page { min-height: calc(100vh - 76px); display: flex; align-items: center; }
.auth-layout { display: grid; grid-template-columns: minmax(0,.9fr) minmax(420px,.75fr); align-items: center; gap: 90px; }
.auth-copy h1 { font-size: clamp(2.5rem,5vw,4.5rem); margin-bottom: 20px; }
.auth-copy p { color: var(--muted); font-size: 1.05rem; max-width: 520px; }
.auth-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow-sm); }
.auth-card--center { max-width: 620px; margin: 0 auto; text-align: center; }
.auth-card h1, .auth-card h2 { font-size: 2rem; margin-bottom: 8px; }
.auth-card__subtitle { color: var(--muted); margin-bottom: 22px; }
.auth-card__subtitle strong { color: var(--ink); }
.notice { background: var(--brand-soft); border: 1px solid #dbe9fb; color: #28496f; border-radius: 11px; padding: 12px 14px; font-size: .83rem; margin-bottom: 20px; text-align: left; }
.auth-form { display: grid; gap: 16px; }
.auth-form label { display: grid; gap: 7px; text-align: left; }
.auth-form label > span { color: var(--ink); font-size: .88rem; font-weight: 720; }
.auth-form input { width: 100%; height: 50px; border-radius: 11px; border: 1px solid var(--line); padding: 0 14px; color: var(--ink); background: #fff; outline: none; }
.auth-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(0,72,169,.08); }
.auth-switch { text-align: center; margin: 20px 0 0; color: var(--muted); font-size: .9rem; }
.auth-switch a { color: var(--brand); font-weight: 800; text-decoration: none; }
.form-message { border-radius: 10px; padding: 10px 12px; font-size: .86rem; margin: 0; }
.form-message--error { background: #fff1f0; color: var(--danger); }
.form-message--success { background: #effbf5; color: var(--success); }
.verify-icon { width: 62px; height: 62px; display: grid; place-items: center; border-radius: 18px; background: var(--brand-soft); color: var(--brand); font-size: 1.7rem; margin: 0 auto 18px; }
.code-input { text-align: center; letter-spacing: .32em; font-size: 1.35rem !important; font-weight: 800; }
.input-help { margin: -8px 0 0; text-align: left; color: var(--muted); font-size: .78rem; }

.dashboard-page { min-height: calc(100vh - 76px); }
.dashboard-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 40px; }
.dashboard-heading h1 { font-size: clamp(2.5rem,5vw,4rem); margin-bottom: 10px; }
.dashboard-heading p { margin: 0; color: var(--muted); }
.user-chip { border: 1px solid var(--line); background: #fff; padding: 9px 13px; border-radius: 999px; color: var(--muted); font-size: .82rem; white-space: nowrap; }
.course-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.course-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; min-height: 360px; display: flex; flex-direction: column; justify-content: space-between; gap: 28px; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.course-card:hover { transform: translateY(-3px); border-color: #d4dbe5; box-shadow: var(--shadow-md); }
.course-card__meta { display: inline-block; color: var(--brand); font-size: .76rem; font-weight: 800; margin-bottom: 30px; }
.course-card h3 { font-size: 1.48rem; margin-bottom: 14px; }
.course-card p { color: var(--muted); margin-bottom: 0; }
.dashboard-grid { display: grid; grid-template-columns: 1.45fr .55fr; gap: 20px; align-items: stretch; }
.progress-card, .current-lesson-card, .course-outline { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.progress-card { padding: 30px; }
.progress-card__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 28px; }
.progress-card__top h2 { font-size: 1.65rem; margin: 0; max-width: 580px; }
.progress-card__percent { font-size: 2.5rem; font-weight: 850; color: var(--brand); line-height: 1; }
.progress { display: grid; gap: 9px; }
.progress__track { height: 10px; background: #e8edf3; border-radius: 999px; overflow: hidden; }
.progress__fill { height: 100%; background: var(--brand); border-radius: inherit; transition: width .28s ease; }
.progress strong { color: var(--text); font-size: .88rem; }
.progress-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 28px; }
.progress-stats > div { padding: 14px; background: var(--surface-muted); border-radius: 12px; display: grid; }
.progress-stats strong { color: var(--ink); font-size: 1.35rem; }
.progress-stats span { color: var(--muted); font-size: .78rem; }
.current-lesson-card { padding: 28px; display: flex; flex-direction: column; }
.current-lesson-card h2 { font-size: 1.45rem; margin-bottom: 10px; }
.current-lesson-card p { color: var(--muted); flex: 1; }
.course-outline { padding: 30px; margin-top: 20px; }
.course-outline .section-heading { margin-bottom: 26px; }
.course-outline .section-heading h2 { font-size: 2rem; }
.module + .module { margin-top: 32px; }
.module h3 { margin-bottom: 14px; }
.lesson-list { display: grid; gap: 9px; }
.lesson-row { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: #fff; }
.lesson-row--current { border-color: #b9cce5; background: #f8fbff; }
.lesson-row--done { background: #f8faf9; }
.lesson-row__number { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--surface-muted); color: var(--muted); font-weight: 800; font-size: .8rem; }
.lesson-row--done .lesson-row__number { color: var(--success); background: #eaf7f0; }
.lesson-row > div { display: grid; }
.lesson-row > div strong { color: var(--ink); font-size: .9rem; }
.lesson-row > div span, .lesson-row__status { color: var(--muted); font-size: .76rem; }

.footer { border-top: 1px solid var(--line); padding: 28px 0; background: #fff; }
.footer__inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; }
.brand--footer .brand__logo { width: 30px; height: 30px; }
.footer p { margin: 0; color: var(--muted); font-size: .82rem; }
.footer__copyright { text-align: right; }

@media (max-width: 980px) {
  .hero-chat {
  width: min(520px, 90%);
  margin-inline: auto;
}
.section { padding: 78px 0; }
  .navbar { grid-template-columns: auto auto; justify-content: space-between; }
  .menu-button { display: inline-flex; }
  .navbar__panel { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-sm); padding: 18px 20px 22px; }
  .navbar__panel--open { display: grid; gap: 18px; }
  .nav-links { align-items: stretch; flex-direction: column; gap: 0; }
  .nav-link { padding: 11px 0; }
  .nav-link--active::after { display: none; }
  .navbar__actions { justify-content: stretch; }
  .navbar__actions .button { flex: 1; }
  .hero { min-height: auto; }
  .hero__grid { grid-template-columns: 1fr; gap: 28px; }
  .hero__content { text-align: center; margin-inline: auto; }
  .hero__lead { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__visual { min-height: 420px; }
  .benefit-grid, .course-grid { grid-template-columns: 1fr 1fr; }
  .benefit-card:last-child, .course-card:last-child { grid-column: 1/-1; }
  .dictionary-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .about-layout, .auth-layout { grid-template-columns: 1fr; gap: 42px; }
  .about-intro { position: static; }
  .about-logo { display: none; }
  .auth-copy { text-align: center; }
  .auth-copy p { margin-inline: auto; }
  .auth-card { width: min(100%,620px); margin-inline: auto; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 12px; }
  .footer__copyright { text-align: center; }
}

@media (max-width: 680px) {
  .hero__visual--chat {
  min-height: 360px;
}

.hero-chat {
  width: min(420px, 100%);
}

.hero__visual--chat .hero__stat--one {
  left: 0;
  bottom: 8px;
}

.hero__visual--chat .hero__stat--two {
  right: 0;
  top: 8px;
}
.container { width: min(calc(100% - 28px),var(--container)); }
  .section { padding: 58px 0; }
  .page-hero { padding-top: 52px; }
  .navbar { min-height: 68px; }
  .navbar__panel { top: 68px; }
  .brand__logo { width: 34px; height: 34px; }
  .hero { padding-top: 64px; }
  .hero h1 { font-size: clamp(2.35rem,13vw,3.65rem); }
  .hero__lead { font-size: 1rem; }
  .hero__actions .button { width: 100%; }
  .hero__visual { min-height: 330px; }
  .hero__visual::before { width: 290px; height: 290px; }
  .hero__logo-wrap { width: 250px; }
  .hero__stat { min-width: 112px; padding: 11px 14px; }
  .hero__stat--one { left: 0; bottom: 32px; }
  .hero__stat--two { right: 0; top: 35px; }
  .benefit-grid, .course-grid, .dictionary-grid { grid-template-columns: 1fr; }
  .benefit-card:last-child, .course-card:last-child { grid-column: auto; }
  .benefit-card { min-height: auto; }
  .benefit-card__number { margin-bottom: 28px; }
  .step-card { grid-template-columns: 52px 1fr; padding: 18px; }
  .dictionary-heading, .dashboard-heading, .progress-card__top { align-items: flex-start; flex-direction: column; }
  .dictionary-count { min-width: 0; width: 100%; }
  .category-filter { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
  .filter-chip { flex: 0 0 auto; }
  .dictionary-card__body > p { min-height: 0; }
  .about-section { grid-template-columns: 38px 1fr; }
  .auth-card { padding: 24px; border-radius: 18px; }
  .auth-copy h1, .dashboard-heading h1 { font-size: 2.5rem; }
  .course-card { min-height: 0; }
  .progress-stats { grid-template-columns: 1fr; }
  .progress-card, .current-lesson-card, .course-outline { padding: 22px; border-radius: 18px; }
  .progress-card__percent { font-size: 2rem; }
  .lesson-row { grid-template-columns: 40px 1fr; }
  .lesson-row__status { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}