@layer reset, tokens, base, layout, components, utilities;

@font-face {
  font-family: 'Dela Gothic One';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/dela-gothic-one.woff2') format('woff2');
}

/* Variável: um único arquivo cobre os pesos 100 a 900. */
@font-face {
  font-family: 'M PLUS 1';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/mplus1.woff2') format('woff2');
}

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  *:not(dialog) {
    margin: 0;
  }

  @media (prefers-reduced-motion: no-preference) {
    html {
      interpolate-size: allow-keywords;
    }
  }

  html {
    -moz-text-size-adjust: none;
    -webkit-text-size-adjust: none;
    text-size-adjust: none;
  }

  body {
    line-height: 1.5;
    min-height: 100dvh;
  }

  img,
  picture,
  video,
  canvas,
  svg {
    display: block;
    max-width: 100%;
  }

  input,
  button,
  textarea,
  select {
    color: inherit;
    font: inherit;
    letter-spacing: inherit;
    word-spacing: inherit;
  }

  textarea {
    field-sizing: content;
    max-height: 10lh;
    min-height: 3lh;
  }

  p,
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    overflow-wrap: break-word;
  }

  figcaption,
  li,
  p {
    text-wrap: pretty;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    text-wrap: balance;
  }

  ul[role='list'],
  ol[role='list'] {
    list-style: none;
    padding: 0;
  }

  :target {
    scroll-margin-block: 5rem;
  }
}

@layer tokens {
  :root {
    /* Brand */
    --color-jlpt: #009a5e;
    --color-premium: #594aff;
    --color-red: #ff2540;
    --color-sales: #30ff7c;
    --color-star: #ffc93c;
    --color-star-light: #fff3b0;
    --color-whatsapp: #25d366;

    /* Neutrals */
    --color-black: #000000;
    --color-dark: #3c444e;
    --color-darker: #1e212d;
    --color-light: #b1b8c5;
    --color-lighter: #c2cbd0;
    --color-muted: #768399;
    --color-white: #ffffff;

    /* Surfaces */
    --color-bg: var(--color-darker);
    --color-surface: color-mix(in srgb, var(--color-darker) 75%, var(--color-dark));
    --color-surface-sunken: color-mix(in srgb, var(--color-darker) 70%, var(--color-black));

    /* Borders */
    --color-border: var(--color-dark);
    --color-border-strong: color-mix(in srgb, var(--color-dark) 80%, var(--color-light));
    --color-border-subtle: color-mix(in srgb, var(--color-darker) 70%, var(--color-dark));

    /* Text */
    --color-text: var(--color-white);
    --color-text-dim: var(--color-muted);
    --color-text-muted: var(--color-light);

    /* Typography */
    --font-body: 'M PLUS 1', sans-serif;
    --font-display: 'Dela Gothic One', sans-serif;
    --font-mono: ui-monospace, 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;

    --font-size-2xs: clamp(0.7rem, 0.65rem + 0.2vw, 0.75rem);
    --font-size-xs: clamp(0.78rem, 0.73rem + 0.25vw, 0.85rem);
    --font-size-sm: clamp(0.88rem, 0.82rem + 0.3vw, 0.95rem);
    --font-size-base: clamp(1rem, 0.94rem + 0.3vw, 1.1rem);
    --font-size-md: clamp(1.15rem, 1.05rem + 0.5vw, 1.3rem);
    --font-size-lg: clamp(1.35rem, 1.2rem + 0.75vw, 1.6rem);
    --font-size-xl: clamp(1.65rem, 1.4rem + 1.1vw, 2.1rem);
    --font-size-2xl: clamp(2rem, 1.65rem + 1.6vw, 2.75rem);
    --font-size-3xl: clamp(2.5rem, 1.95rem + 2.5vw, 3.6rem);

    --line-height-tight: 1.15;
    --line-height-snug: 1.3;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --space-3xs: 0.25rem;
    --space-2xs: 0.5rem;
    --space-xs: 0.75rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4.5rem;
    --space-4xl: 9rem;

    /* Dimensions */
    --container-max: 76rem;
    --container-narrow: 56rem;
    --container-reading: 46rem;

    /* Radii */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  }

  /* Accent */
  :root {
    --accent: var(--color-red);
    --accent-hover: color-mix(in oklch, var(--color-red) 85%, white);
    --accent-light: color-mix(in oklch, var(--color-red) 72%, white);
    --accent-subtle: color-mix(in srgb, var(--color-red) 12%, transparent);
    --gradient-accent: linear-gradient(90deg, var(--color-red) 0%, oklch(from var(--color-red) calc(l + 0.05) c h) 100%);
  }

  .accent--premium {
    --accent: var(--color-premium);
    --accent-hover: color-mix(in oklch, var(--color-premium) 85%, white);
    --accent-light: color-mix(in oklch, var(--color-premium) 72%, white);
    --accent-subtle: color-mix(in srgb, var(--color-premium) 14%, transparent);
    --gradient-accent: linear-gradient(115deg, var(--color-premium) 0%, oklch(from var(--color-premium) l c calc(h + 24)) 100%);
  }

  .accent--jlpt {
    --accent: var(--color-jlpt);
    --accent-hover: color-mix(in oklch, var(--color-jlpt) 85%, white);
    --accent-light: color-mix(in oklch, var(--color-jlpt) 72%, white);
    --accent-subtle: color-mix(in srgb, var(--color-jlpt) 14%, transparent);
    --gradient-accent: linear-gradient(115deg, var(--color-jlpt) 0%, oklch(from var(--color-jlpt) l c calc(h - 24)) 100%);
  }
}

@layer base {
  html {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 100%;
    scroll-behavior: smooth;
  }

  body {
    background-color: var(--color-bg);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    min-height: 100vh;
  }

  h1,
  h2 {
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: var(--line-height-tight);
  }

  h3,
  h4,
  h5,
  h6 {
    font-weight: 700;
    line-height: var(--line-height-snug);
  }

  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
  h4 { font-size: var(--font-size-lg); }
  h5 { font-size: var(--font-size-md); }
  h6 { font-size: var(--font-size-base); }

  p {
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
  }

  a {
    color: var(--color-lighter);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast);
  }

  a:hover {
    color: var(--color-white);
  }

  strong {
    color: var(--color-text);
    font-weight: 700;
  }

  code,
  kbd,
  samp,
  pre {
    font-family: var(--font-mono);
  }

}

@layer layout {
  .site-main {
    flex: 1 0 auto;
  }

  .container {
    margin-inline: auto;
    max-width: var(--container-max);
    padding-inline: var(--space-md);
    width: 100%;
  }

  .container--narrow {
    max-width: var(--container-narrow);
  }

  .container--reading {
    max-width: var(--container-reading);
  }

  .section {
    padding-block: var(--space-2xl);
  }

  .section--alt {
    background-color: var(--color-surface-sunken);
    border-block: 1px solid var(--color-border-subtle);
  }

  .grid {
    display: grid;
    gap: var(--space-md);
    justify-content: center;
  }

  .grid--2 {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  }

  .stack {
    align-items: var(--stack-align, center);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .stack--2xs { gap: var(--space-2xs); }
  .stack--xs { gap: var(--space-xs); }
  .stack--md { gap: var(--space-md); }

  .section-header {
    --stack-align: stretch;
    margin-bottom: var(--space-xl);
    margin-inline: auto;
    max-width: 44rem;
    text-align: center;
  }

  .section-header > .badge {
    align-self: center;
  }

  .page-header {
    --stack-align: stretch;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: calc(var(--space-lg) + var(--space-xl));
    padding-bottom: calc(var(--space-sm) + var(--space-md));
  }

  .page-header__lead {
    color: var(--color-text-muted);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
  }

  /* Updated at */
  .page-updated {
    border-top: 1px solid var(--color-border-subtle);
    margin-block-start: var(--space-2xl);
    padding-block-start: var(--space-md);
  }

  .page-updated p {
    color: var(--color-text-dim);
    font-size: var(--font-size-xs);
    margin: 0;
  }

  /* Cookie consent button */
  .consent-settings {
    margin-block-start: var(--space-xl);
  }

  .consent-settings .btn {
    font-size: var(--font-size-sm);
    padding-block: var(--space-2xs);
    padding-inline: var(--space-md);
  }
}

@layer components {
  /* Skip link */
  .skip-link {
    background: var(--accent);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-weight: 700;
    left: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    position: absolute;
    text-decoration: none;
    top: -9999px;
    z-index: 1000;
  }

  .skip-link:focus {
    top: var(--space-sm);
  }

  /* Promo banner */
  .promo-banner {
    background-image: linear-gradient(135deg, var(--color-premium) 0%, color-mix(in oklch, var(--color-premium) 75%, black) 100%);
    border-bottom: 2px solid var(--color-sales);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    padding-block: var(--space-2xs);
    position: relative;
    z-index: 90;
  }

  .promo-banner__inner {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm) var(--space-md);
    justify-content: center;
    text-align: center;
  }

  .promo-banner__badge {
    background-color: var(--color-sales);
    border-radius: var(--radius-full);
    color: var(--color-darker);
    font-size: var(--font-size-2xs);
    font-weight: 800;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    text-transform: uppercase;
  }

  .promo-banner__text strong {
    color: var(--color-sales);
  }

  .promo-banner__link {
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    color: var(--color-darker);
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 4px 14px;
    text-decoration: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
  }

  .promo-banner__link:hover {
    background-color: var(--color-sales);
    color: var(--color-darker);
    transform: translateY(-1px);
  }

  /* Header */
  .site-header {
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    background-color: color-mix(in srgb, var(--color-darker) 78%, transparent);
    border-bottom: 1px solid var(--color-border-subtle);
    padding-block: var(--space-xs);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .site-header__inner {
    align-items: center;
    display: flex;
    gap: var(--space-md);
    justify-content: space-between;
  }

  .site-logo {
    align-items: center;
    display: inline-flex;
    text-decoration: none;
  }

  .site-logo img {
    height: 2.25rem;
    width: auto;
  }

  .site-nav ul {
    align-items: center;
    display: flex;
    gap: var(--space-md);
  }

  .site-nav a {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
  }

  .site-nav a:hover {
    color: var(--color-text);
  }

  .site-nav a.nav-whatsapp {
    align-items: center;
    background-color: color-mix(in srgb, var(--color-surface) 60%, transparent);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-full);
    display: inline-flex;
    font-size: var(--font-size-xs);
    font-weight: 600;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  }

  .site-nav a.nav-whatsapp:hover {
    background-color: color-mix(in srgb, var(--color-whatsapp) 10%, transparent);
    border-color: color-mix(in srgb, var(--color-whatsapp) 40%, transparent);
    color: var(--color-whatsapp);
  }

  .icon-whatsapp,
  .icon-mail {
    background-color: currentColor;
    display: inline-block;
    flex-shrink: 0;
    height: 1rem;
    width: 1rem;
  }

  .icon-whatsapp {
    -webkit-mask: url("img/whatsapp.svg") center / contain no-repeat;
    mask: url("img/whatsapp.svg") center / contain no-repeat;
  }

  .icon-mail {
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect width='20' height='16' x='2' y='4' rx='2'/%3E%3Cpath d='m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect width='20' height='16' x='2' y='4' rx='2'/%3E%3Cpath d='m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7'/%3E%3C/svg%3E") center / contain no-repeat;
  }

  /* Buttons */
  .btn {
    align-items: center;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: inline-flex;
    font-size: var(--font-size-sm);
    font-weight: 700;
    gap: var(--space-2xs);
    justify-content: center;
    letter-spacing: 0.01em;
    line-height: 1.2;
    padding: 0.75rem 1.75rem;
    text-align: center;
    text-decoration: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
  }

  .btn:hover {
    box-shadow: 0 8px 24px color-mix(in srgb, var(--color-black) 40%, transparent);
    transform: translateY(-2px);
  }

  .btn:active {
    box-shadow: 0 2px 8px color-mix(in srgb, var(--color-black) 30%, transparent);
    transform: translateY(0);
  }

  .btn--accent {
    background-color: var(--accent);
    color: var(--color-white);
  }

  .btn--accent:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 45%, transparent);
    color: var(--color-white);
  }

  .btn--sales {
    background-color: var(--color-sales);
    color: var(--color-darker);
    font-weight: 800;
  }

  .btn--sales:hover {
    background-color: color-mix(in oklch, var(--color-sales) 85%, white);
    box-shadow: 0 6px 24px color-mix(in srgb, var(--color-sales) 40%, transparent);
    color: var(--color-darker);
  }

  .btn--whatsapp {
    background-color: transparent;
    border: 1.5px solid var(--color-whatsapp);
    color: var(--color-whatsapp);
  }

  .btn--whatsapp:hover {
    background-color: color-mix(in srgb, var(--color-whatsapp) 12%, transparent);
    border-color: color-mix(in oklch, var(--color-whatsapp) 85%, white);
    box-shadow: 0 0 18px color-mix(in srgb, var(--color-whatsapp) 30%, transparent);
    color: color-mix(in oklch, var(--color-whatsapp) 85%, white);
  }

  .btn--outline {
    background-color: transparent;
    border: 1.5px solid var(--color-border-strong);
    color: var(--color-white);
  }

  .btn--outline:hover {
    background-color: color-mix(in srgb, var(--color-white) 8%, transparent);
    border-color: var(--color-white);
    color: var(--color-white);
  }

  .btn--lg {
    font-size: var(--font-size-base);
    padding: 0.95rem 2.25rem;
  }

  .btn--block {
    width: 100%;
  }

  /* Badges */
  .badge {
    align-items: center;
    border-radius: var(--radius-sm);
    display: inline-flex;
    font-size: var(--font-size-2xs);
    font-weight: 700;
    gap: 0.35rem;
    justify-content: center;
    letter-spacing: 0.08em;
    max-width: max-content;
    padding: 0.25rem 0.65rem;
    text-transform: uppercase;
    width: fit-content;
  }

  .badge--accent {
    background-color: var(--accent-subtle);
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
    color: var(--accent-light);
  }

  /* Hero */
  .hero {
    background:
      radial-gradient(ellipse 70% 50% at 50% 0%, color-mix(in srgb, var(--accent) 20%, transparent) 0%, transparent 75%),
      linear-gradient(color-mix(in srgb, var(--color-bg) 50%, transparent), color-mix(in srgb, var(--color-bg) 50%, transparent)),
      url("img/jezael-melgoza.jpg") center / cover no-repeat,
      var(--color-bg);
    overflow: hidden;
    padding-block: var(--space-4xl);
    position: relative;
    text-align: center;
  }

  .hero__inner {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-inline: auto;
    max-width: var(--container-narrow);
  }

  .hero__title {
    font-size: var(--font-size-3xl);
    line-height: 1.1;
  }

  .hero__lead {
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    max-width: 44rem;
  }

  .hero__logo {
    margin-block: var(--space-xs);
    margin-inline: auto;
    max-width: 30rem;
  }

  .text-highlight {
    -webkit-background-clip: text;
    -webkit-box-decoration-break: clone;
    -webkit-text-fill-color: transparent;
    background: var(--gradient-accent);
    background-clip: text;
    box-decoration-break: clone;
    color: var(--accent);
  }

  /* Cards */
  .card {
    --stack-align: stretch;
    background: linear-gradient(180deg, color-mix(in srgb, var(--color-white) 3%, transparent) 0%, transparent 100%), var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    box-shadow: 0 4px 20px color-mix(in srgb, var(--color-black) 25%, transparent);
    color: var(--color-text-muted);
    padding: var(--space-lg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  }

  .card:hover {
    border-color: var(--color-border-strong);
    box-shadow: 0 12px 32px color-mix(in srgb, var(--color-black) 40%, transparent);
    transform: translateY(-3px);
  }

  .card h3 {
    color: var(--color-text);
    font-size: var(--font-size-lg);
  }

  .card--accent-top {
    border-top: 4px solid var(--accent);
  }

  .card--accent-top:hover {
    border-top-color: var(--accent);
  }

  .card__logo {
    align-self: flex-start;
    margin-block: var(--space-3xs);
    max-height: 4.5rem;
    object-fit: contain;
    width: auto;
  }

  .checklist {
    --stack-align: stretch;
    font-size: var(--font-size-sm);
    list-style: none;
    padding-left: 0;
  }

  .checklist li::before {
    content: "✓ ";
  }

  /* Countdown */
  .countdown {
    align-items: center;
    background-color: color-mix(in srgb, var(--color-darker) 85%, var(--color-black));
    border: 1px solid color-mix(in srgb, var(--color-sales) 30%, transparent);
    border-radius: var(--radius-full);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--color-black) 30%, transparent);
    display: inline-flex;
    gap: var(--space-2xs);
    padding: 0.5rem 1.25rem;
  }

  .countdown__item {
    align-items: center;
    display: flex;
    flex-direction: column;
    min-width: 2.8rem;
  }

  .countdown__value {
    color: var(--color-sales);
    font-family: var(--font-display);
    font-size: var(--font-size-md);
    line-height: 1;
  }

  .countdown__label {
    color: var(--color-text-dim);
    font-size: var(--font-size-2xs);
    text-transform: uppercase;
  }

  .countdown__sep {
    color: var(--color-text-dim);
    font-family: var(--font-display);
    font-size: var(--font-size-md);
  }

  .countdown--ended {
    filter: grayscale(0.2);
    opacity: 0.7;
  }

  .enrollment {
    background:
      radial-gradient(ellipse 80% 60% at 50% 0%, color-mix(in srgb, var(--color-sales) 4%, transparent) 0%, transparent 70%),
      linear-gradient(to bottom, color-mix(in srgb, var(--color-sales) 8%, transparent) 0%, color-mix(in srgb, var(--color-sales) 2%, transparent) 100%),
      var(--color-surface-sunken);
    text-align: center;
  }

  .enrollment__ribbon {
    background-color: var(--color-sales);
    border-radius: var(--radius-full);
    color: var(--color-darker);
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 800;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
    padding: 4px 16px;
    text-transform: uppercase;
  }

  .enrollment__countdown {
    margin-bottom: var(--space-lg);
  }

  .enrollment__countdown-label {
    color: var(--color-text-dim);
    font-size: var(--font-size-2xs);
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3xs);
    text-transform: uppercase;
  }

  .price {
    align-items: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
  }

  .price__original {
    color: var(--color-muted);
    font-size: var(--font-size-lg);
    text-decoration: line-through;
    text-decoration-color: var(--color-red);
    text-decoration-thickness: 2px;
  }

  .price__current {
    color: var(--color-sales);
    font-size: var(--font-size-2xl);
    line-height: 1;
    text-decoration: none;
  }

  .price__note {
    color: var(--color-text-muted);
    font-size: var(--font-size-md);
  }

  .enrollment__cta {
    font-size: var(--font-size-md);
    margin-inline: auto;
    max-width: 32rem;
    padding-block: 1.1rem;
    padding-inline: 0.5rem;
  }

  .payment-methods {
    margin: var(--space-md) auto 0;
    max-width: 22rem;
    opacity: 0.9;
  }

  .faq-item,
  .intl-payment {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition-fast);
  }

  .faq-item summary,
  .intl-payment summary {
    cursor: pointer;
    display: flex;
    gap: var(--space-sm);
    justify-content: space-between;
    list-style: none;
    user-select: none;
  }

  .faq-item summary::-webkit-details-marker,
  .intl-payment summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after,
  .intl-payment summary::after {
    color: currentColor;
    content: '\203A';
    display: grid;
    flex-shrink: 0;
    font-weight: 800;
    line-height: 1;
    place-items: center;
    transform: translateY(-0.176em);
    transform-origin: 50% calc(50% + 0.176em);
    transition: transform var(--transition-base);
  }

  .faq-item[open] summary::after,
  .intl-payment[open] summary::after {
    transform: translateY(-0.176em) rotate(90deg);
  }

  .faq-item::details-content,
  .intl-payment::details-content {
    block-size: 0;
    opacity: 0;
    overflow: hidden;
    transition:
      block-size var(--transition-base),
      opacity var(--transition-base),
      content-visibility var(--transition-base) allow-discrete,
      display var(--transition-base) allow-discrete;
  }

  .faq-item[open]::details-content,
  .intl-payment[open]::details-content {
    block-size: auto;
    opacity: 1;
  }

  @media (prefers-reduced-motion: reduce) {
    .faq-item::details-content,
    .intl-payment::details-content {
      transition: none;
    }
  }

  /* FAQ */
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .faq-item:hover {
    border-color: color-mix(in srgb, var(--color-light) 40%, var(--color-border));
  }

  .faq-item summary {
    align-items: flex-start;
    font-size: var(--font-size-md);
    font-weight: 700;
    padding: var(--space-md);
  }

  .faq-item summary::after {
    color: var(--accent);
    font-size: 1.75rem;
    height: calc(var(--line-height-normal) * var(--font-size-md));
    width: 1.5rem;
  }

  .faq-item__content {
    color: var(--color-text-muted);
    line-height: var(--line-height-relaxed);
    padding: 0 var(--space-md) var(--space-md);
  }

  /* International Payment */
  .intl-payment {
    background-color: color-mix(in srgb, var(--color-surface-sunken) 25%, transparent);
    border-color: var(--color-border-subtle);
    margin: var(--space-lg) auto 0;
    max-width: 32rem;
  }

  .intl-payment:hover {
    border-color: var(--color-border);
  }

  .intl-payment summary {
    align-items: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    padding: var(--space-sm) var(--space-md);
  }

  .intl-payment summary::after {
    font-size: 1.25rem;
    height: 1.25rem;
    width: 1.25rem;
  }

  .intl-payment__content {
    color: var(--color-text-dim);
    font-size: var(--font-size-xs);
    padding: 0 var(--space-md) var(--space-md);
  }

  .intl-payment__list {
    display: grid;
    gap: var(--space-xs);
    grid-template-columns: repeat(4, 1fr);
    list-style: none;
    padding: 0;
  }

  .intl-payment__list a {
    align-items: center;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    display: flex;
    font-weight: 600;
    gap: 0.3em;
    justify-content: center;
    padding: 0.35rem 0.4rem;
    text-decoration: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  }

  .intl-payment__list a:hover {
    background-color: color-mix(in srgb, var(--color-white) 6%, transparent);
    border-color: var(--color-border-strong);
    color: var(--color-text);
  }

  /* Prose */
  .prose {
    color: var(--color-text-muted);
    line-height: var(--line-height-relaxed);
  }

  .prose h1,
  .prose h2,
  .prose h3,
  .prose h4 {
    color: var(--color-white);
    font-family: var(--font-body);
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: var(--line-height-snug);
  }

  .prose h1 {
    font-size: var(--font-size-2xl);
    margin-block: var(--space-xl) var(--space-sm);
  }

  .prose h2 {
    border-bottom: 1px solid var(--color-border-subtle);
    font-size: var(--font-size-xl);
    margin-block: var(--space-xl) var(--space-sm);
    padding-bottom: var(--space-3xs);
  }

  .prose h3 {
    font-size: var(--font-size-lg);
    margin-block: var(--space-lg) var(--space-xs);
  }

  .prose h4 {
    color: var(--color-light);
    font-size: var(--font-size-md);
    margin-block: var(--space-md) var(--space-2xs);
  }

  .prose p,
  .prose ul,
  .prose ol {
    margin-bottom: var(--space-md);
  }

  .prose ul,
  .prose ol {
    padding-left: var(--space-lg);
  }

  .prose li {
    margin-bottom: var(--space-2xs);
  }

  .prose blockquote {
    border-left: 3px solid var(--accent);
    color: var(--color-light);
    font-style: italic;
    margin-block: var(--space-md);
    padding-left: var(--space-md);
  }

  /* Step numbers */
  .step-number {
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background: var(--gradient-accent);
    background-clip: text;
    color: var(--accent);
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    letter-spacing: 0.02em;
    line-height: 1;
    user-select: none;
  }

  /* Features */
  .feature {
    background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 65%), var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: var(--space-lg);
  }

  .feature__icon {
    -webkit-mask: var(--feature-icon) center / contain no-repeat;
    background-color: var(--accent);
    block-size: 1.5rem;
    flex-shrink: 0;
    inline-size: 1.5rem;
    mask: var(--feature-icon) center / contain no-repeat;
  }

  .feature__title {
    color: var(--color-white);
    font-size: var(--font-size-md);
    line-height: var(--line-height-snug);
  }

  .feature__text {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
  }

  /* Feature Icons */
  .feature__icon--layers { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M12.83%202.18a2%202%200%200%200-1.66%200L2.6%206.08a1%201%200%200%200%200%201.83l8.58%203.91a2%202%200%200%200%201.66%200l8.58-3.9a1%201%200%200%200%200-1.83z%22%20%2F%3E%20%3Cpath%20d%3D%22M2%2012a1%201%200%200%200%20.58.91l8.6%203.91a2%202%200%200%200%201.65%200l8.58-3.9A1%201%200%200%200%2022%2012%22%20%2F%3E%20%3Cpath%20d%3D%22M2%2017a1%201%200%200%200%20.58.91l8.6%203.91a2%202%200%200%200%201.65%200l8.58-3.9A1%201%200%200%200%2022%2017%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--video { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22m16%2013%205.223%203.482a.5.5%200%200%200%20.777-.416V7.87a.5.5%200%200%200-.752-.432L16%2010.5%22%20%2F%3E%20%3Crect%20x%3D%222%22%20y%3D%226%22%20width%3D%2214%22%20height%3D%2212%22%20rx%3D%222%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--infinity { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M6%2016c5%200%207-8%2012-8a4%204%200%200%201%200%208c-5%200-7-8-12-8a4%204%200%201%200%200%208%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--refresh-cw { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M3%2012a9%209%200%200%201%209-9%209.75%209.75%200%200%201%206.74%202.74L21%208%22%20%2F%3E%20%3Cpath%20d%3D%22M21%203v5h-5%22%20%2F%3E%20%3Cpath%20d%3D%22M21%2012a9%209%200%200%201-9%209%209.75%209.75%200%200%201-6.74-2.74L3%2016%22%20%2F%3E%20%3Cpath%20d%3D%22M8%2016H3v5%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--presentation { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M2%203h20%22%20%2F%3E%20%3Cpath%20d%3D%22M21%203v11a2%202%200%200%201-2%202H5a2%202%200%200%201-2-2V3%22%20%2F%3E%20%3Cpath%20d%3D%22m7%2021%205-5%205%205%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--award { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22m15.477%2012.89%201.515%208.526a.5.5%200%200%201-.81.47l-3.58-2.687a1%201%200%200%200-1.197%200l-3.586%202.686a.5.5%200%200%201-.81-.469l1.514-8.526%22%20%2F%3E%20%3Ccircle%20cx%3D%2212%22%20cy%3D%228%22%20r%3D%226%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--file-text { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M6%2022a2%202%200%200%201-2-2V4a2%202%200%200%201%202-2h8a2.4%202.4%200%200%201%201.704.706l3.588%203.588A2.4%202.4%200%200%201%2020%208v12a2%202%200%200%201-2%202z%22%20%2F%3E%20%3Cpath%20d%3D%22M14%202v5a1%201%200%200%200%201%201h5%22%20%2F%3E%20%3Cpath%20d%3D%22M10%209H8%22%20%2F%3E%20%3Cpath%20d%3D%22M16%2013H8%22%20%2F%3E%20%3Cpath%20d%3D%22M16%2017H8%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--heart { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M2%209.5a5.5%205.5%200%200%201%209.591-3.676.56.56%200%200%200%20.818%200A5.49%205.49%200%200%201%2022%209.5c0%202.29-1.5%204-3%205.5l-5.492%205.313a2%202%200%200%201-3%20.019L5%2015c-1.5-1.5-3-3.2-3-5.5%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--headphones { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M3%2014h3a2%202%200%200%201%202%202v3a2%202%200%200%201-2%202H5a2%202%200%200%201-2-2v-7a9%209%200%200%201%2018%200v7a2%202%200%200%201-2%202h-1a2%202%200%200%201-2-2v-3a2%202%200%200%201%202-2h3%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--lightbulb { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M15%2014c.2-1%20.7-1.7%201.5-2.5%201-.9%201.5-2.2%201.5-3.5A6%206%200%200%200%206%208c0%201%20.2%202.2%201.5%203.5.7.7%201.3%201.5%201.5%202.5%22%20%2F%3E%20%3Cpath%20d%3D%22M9%2018h6%22%20%2F%3E%20%3Cpath%20d%3D%22M10%2022h4%22%20%2F%3E%3C%2Fsvg%3E"); }
  .feature__icon--book-open { --feature-icon: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M12%205v16%22%20%2F%3E%20%3Cpath%20d%3D%22M20.001%2019A2%202%200%200022%2017V5a2%202%200%2000-1.999-2L16%203.002A5%205%200%200012%205a5%205%200%2000-4-2H4a2%202%200%2000-2%202v12a2%202%200%20001.999%202H8a5%205%200%20014%202%205%205%200%20014-2z%22%20%2F%3E%3C%2Fsvg%3E"); }

  /* Teacher profile */
  .teacher-profile {
    align-items: start;
    display: grid;
    gap: var(--space-xl);
    grid-template-columns: 1fr;
    margin-inline: auto;
    max-width: 64rem;
  }

  .teacher-section {
    background:
      linear-gradient(color-mix(in srgb, var(--color-black) 80%, transparent), color-mix(in srgb, var(--color-black) 80%, transparent)),
      url("img/sempre-sonhando.jpg") center / cover no-repeat,
      var(--color-black);
  }

  .teacher-profile__photo {
    height: auto;
    width: 100%;
  }

  .teacher-profile__content {
    color: var(--color-text-muted);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    line-height: var(--line-height-relaxed);
  }

  .teacher-profile__title {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    line-height: 1.2;
  }

  .teacher-profile--landscape {
    align-items: center;
  }

  @media (min-width: 768px) {
    .teacher-profile {
      grid-template-columns: 340px 1fr;
    }

    .teacher-profile--landscape {
      grid-template-columns: 1fr 1fr;
    }

    .teacher-profile__photo {
      align-self: end;
      margin-bottom: calc(-1 * var(--space-2xl));
    }
  }

  .trivia {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    margin-block-start: var(--space-2xl);
    padding: var(--space-lg) var(--space-xl);
  }

  .trivia__list {
    align-items: center;
    display: grid;
    list-style: none;
    padding: 0;
  }

  .trivia__item {
    animation: trivia-cycle 48s ease-in-out infinite;
    animation-delay: var(--trivia-delay);
    color: color-mix(in srgb, var(--color-text-muted) 30%, var(--color-text-dim));
    font-size: var(--font-size-sm);
    grid-area: 1 / 1;
    line-height: var(--line-height-relaxed);
    opacity: 0;
    text-align: center;
    visibility: hidden;
    word-break: keep-all;
  }

  .trivia__item p {
    color: inherit;
    font-size: inherit;
  }

  .trivia__item:nth-child(1) { --trivia-delay: 0s; }
  .trivia__item:nth-child(2) { --trivia-delay: 12s; }
  .trivia__item:nth-child(3) { --trivia-delay: 24s; }
  .trivia__item:nth-child(4) { --trivia-delay: 36s; }

  /* Progress Bar */
  .trivia::after {
    animation: trivia-progress 12s linear infinite;
    background-color: var(--color-text-dim);
    block-size: 2px;
    content: "";
    display: block;
    inline-size: 100%;
    margin-block-start: var(--space-md);
    opacity: 0.3;
    transform-origin: left center;
  }

  @keyframes trivia-progress {
    0% { transform: scaleX(1); }
    6% { transform: scaleX(1); }
    100% { transform: scaleX(0); }
  }

  @keyframes trivia-cycle {
    0% { opacity: 0; visibility: hidden; }
    1.5% { opacity: 1; visibility: visible; }
    23.5% { opacity: 1; visibility: visible; }
    25% { opacity: 0; visibility: hidden; }
    100% { opacity: 0; visibility: hidden; }
  }

  @media (prefers-reduced-motion: reduce) {
    .trivia__item {
      animation: none;
      grid-area: auto;
      opacity: 1;
      visibility: visible;
    }

    .trivia::after {
      display: none;
    }

    .trivia__list {
      gap: var(--space-sm);
    }
  }

  /* Newsletter */
  .newsletter-card {
    --stack-align: stretch;
    background: radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 80%), var(--color-surface);
    border: 1.5px solid color-mix(in srgb, var(--accent) 40%, transparent);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px color-mix(in srgb, var(--color-black) 55%, transparent), 0 0 30px color-mix(in srgb, var(--accent) 15%, transparent);
    margin-inline: auto;
    max-width: 52rem;
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
  }

  .newsletter-card__header {
    --stack-align: stretch;
    margin-inline: auto;
    max-width: 38rem;
    min-width: 0;
  }

  .newsletter-card__lead {
    font-size: var(--font-size-md);
  }

  .newsletter-form {
    --stack-align: stretch;
    margin-inline: auto;
    max-width: 40rem;
    width: 100%;
  }

  .newsletter-form__row {
    align-items: stretch;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2xs);
  }

  .newsletter-form__input {
    flex: 1;
    min-width: 0;
  }

  .newsletter-form__note {
    color: var(--color-text-dim);
    font-size: var(--font-size-2xs);
  }

  input[type='email'],
  input[type='text'],
  input[type='search'] {
    background-color: var(--color-surface-sunken);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-full);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    padding: 0.75rem 1.5rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  }

  input[type='email']:focus,
  input[type='text']:focus,
  input[type='search']:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
    outline: none;
  }

  /* Contact */
  .contact-box {
    align-items: center;
    background: linear-gradient(180deg, color-mix(in srgb, var(--color-white) 2%, transparent) 0%, transparent 100%), var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    text-align: center;
  }

  .contact-box p {
    font-size: var(--font-size-sm);
  }

  .contact-box__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
    margin-top: var(--space-xs);
  }

  /* Testimonials */
  .star-rating {
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    align-self: center;
    animation: star-shimmer 6s linear infinite;
    background: linear-gradient(90deg, var(--color-star) 0%, var(--color-star-light) 25%, var(--color-star) 50%, var(--color-star-light) 75%, var(--color-star) 100%);
    background-clip: text;
    background-size: 160% 100%;
    color: var(--color-star);
    display: inline-flex;
    filter: drop-shadow(0 0 6px color-mix(in srgb, var(--color-star) 45%, transparent));
    font-size: var(--font-size-lg);
    letter-spacing: 0.05em;
    line-height: 1;
  }

  @keyframes star-shimmer {
    from { background-position: 0% 50%; }
    to { background-position: 266.667% 50%; }
  }

  @media (prefers-reduced-motion: reduce) {
    .star-rating {
      animation: none;
    }
  }

  .testimonial-rail {
    --rail-fade: clamp(2.5rem, 6vw, 4.5rem);
    -webkit-mask-image: linear-gradient(to right, transparent, #000 var(--rail-fade), #000 calc(100% - var(--rail-fade)), transparent);
    -webkit-overflow-scrolling: touch;
    container-type: inline-size;
    margin-inline: calc(-1 * var(--space-md));
    mask-image: linear-gradient(to right, transparent, #000 var(--rail-fade), #000 calc(100% - var(--rail-fade)), transparent);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    padding: var(--space-xs) var(--rail-fade) var(--space-md);
    scroll-padding-inline: var(--rail-fade);
    scroll-snap-type: inline mandatory;
    scrollbar-color: var(--color-text-dim) transparent;
    scrollbar-width: thin;
  }

  .testimonial-track {
    display: grid;
    gap: var(--space-md);
    grid-auto-columns: min(82vw, 22rem);
    grid-auto-flow: column;
    width: max-content;
  }

  @container (min-width: 48rem) {
    .testimonial-track {
      grid-auto-columns: calc((100cqi - var(--space-md)) / 2);
    }
  }

  @container (min-width: 64rem) {
    .testimonial-track {
      grid-auto-columns: calc((100cqi - 2 * var(--space-md)) / 3);
    }
  }

  .testimonial {
    background: linear-gradient(180deg, color-mix(in srgb, var(--color-white) 2.5%, transparent) 0%, transparent 100%), var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px color-mix(in srgb, var(--color-black) 25%, transparent);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    justify-content: space-between;
    line-height: 1;
    min-height: 18rem;
    padding: var(--space-lg);
    scroll-snap-align: start;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  }

  .testimonial:hover {
    border-color: var(--color-border-strong);
    box-shadow: 0 12px 32px color-mix(in srgb, var(--color-black) 40%, transparent);
    transform: translateY(-3px);
  }

  .testimonial__quote {
    color: var(--color-text-muted);
    line-height: var(--line-height-relaxed);
  }

  .testimonial__author {
    align-items: center;
    display: flex;
    gap: var(--space-sm);
  }

  .testimonial__author strong {
    display: block;
    font-size: var(--font-size-sm);
  }

  .testimonial__author span {
    color: var(--color-text-dim);
    font-size: var(--font-size-xs);
  }

  .testimonial__avatar {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    flex-shrink: 0;
    height: 2.75rem;
    object-fit: cover;
    width: 2.75rem;
  }

  .testimonial__avatar--initial {
    align-items: center;
    background-color: var(--color-surface-sunken);
    color: var(--color-sales);
    display: flex;
    font-weight: 700;
    justify-content: center;
  }

  /* Footer */
  .site-footer {
    background-color: var(--color-surface-sunken);
    border-top: 1px solid var(--color-border-subtle);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: auto;
    padding-block: var(--space-2xl) var(--space-xl);
  }

  .site-footer__inner {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    justify-content: space-between;
  }

  .site-footer__brand {
    --stack-align: stretch;
    max-width: 22rem;
  }

  .site-footer__description {
    color: var(--color-text-dim);
    font-size: var(--font-size-xs);
  }

  .site-footer__links {
    display: grid;
    flex: 1;
    gap: var(--space-xl) var(--space-md);
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .site-footer__col {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }

  .site-footer__title {
    color: var(--color-text);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .site-footer a {
    color: var(--color-text-muted);
    text-decoration: none;
  }

  .site-footer a:hover {
    color: var(--color-text);
  }

  .site-footer__bottom {
    border-top: 1px solid var(--color-border-subtle);
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
  }

  .site-footer__bottom p {
    font-size: var(--font-size-xs);
  }

  @media not all and (min-width: 768px) {
    .hero {
      padding-block: var(--space-2xl);
    }

    .site-header__inner {
      flex-direction: column;
      gap: var(--space-xs);
    }

    .site-nav ul {
      flex-wrap: wrap;
      gap: var(--space-xs) var(--space-sm);
      justify-content: center;
    }

    .btn {
      white-space: normal;
    }

    .card {
      padding: var(--space-md);
    }

    .newsletter-card {
      padding: var(--space-xl) var(--space-md);
    }

    .newsletter-form__row {
      flex-direction: column;
    }

    .newsletter-form__input {
      width: 100%;
    }

    .teacher-profile__photo {
      margin-bottom: calc(-1 * var(--space-2xl));
      order: 1;
    }

    .teacher-profile__content {
      order: 0;
    }

    .site-footer__inner {
      flex-direction: column;
    }

    .site-footer__links {
      gap: var(--space-lg) var(--space-md);
      grid-template-columns: repeat(2, minmax(0, 1fr));
      width: 100%;
    }

    .testimonial-rail {
      --rail-fade: 1.25rem;
    }

    .testimonial-track {
      grid-auto-columns: calc(100cqi - 2 * var(--rail-fade));
    }

    .faq-item summary {
      padding: var(--space-sm);
    }

    .faq-item__content {
      padding: 0 var(--space-sm) var(--space-sm);
    }

    .trivia {
      padding: var(--space-md);
    }

    .intl-payment__list {
      grid-template-columns: repeat(2, 1fr);
    }
  }
}

@layer utilities {
  .sr-only {
    border: 0;
    clip: rect(0, 0, 0, 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }

}