:root {
  color-scheme: light dark;
  --guide-canvas: #f3f6fb;
  --guide-glow: rgba(37, 99, 235, 0.16);
  --guide-surface: rgba(255, 255, 255, 0.96);
  --guide-surface-muted: #f7f9fc;
  --guide-text: #172033;
  --guide-text-soft: #475467;
  --guide-heading: #0b1220;
  --guide-accent: #175cd3;
  --guide-accent-strong: #1849a9;
  --guide-border: rgba(15, 23, 42, 0.13);
  --guide-focus: #155eef;
  --guide-shadow: 0 28px 80px rgba(15, 23, 42, 0.12);
}

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

html {
  min-inline-size: 0;
  background: var(--guide-canvas);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-block-size: 100vh;
  margin: 0;
  color: var(--guide-text);
  background:
    radial-gradient(circle at 50% -12rem, var(--guide-glow), transparent 36rem),
    var(--guide-canvas);
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  font-synthesis: none;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  inline-size: min(calc(100% - clamp(1rem, 5vw, 4rem)), 64rem);
  margin-block: clamp(0.75rem, 4vw, 3.5rem);
  margin-inline: auto;
  padding-block: clamp(1.5rem, 5vw, 4.5rem);
  padding-inline: clamp(1rem, 5vw, 4.75rem);
  overflow-wrap: anywhere;
  background: var(--guide-surface);
  border: 1px solid var(--guide-border);
  border-radius: clamp(1.25rem, 3vw, 2.25rem);
  box-shadow: var(--guide-shadow);
  text-align: start;
}

:where(h1, h2, h3) {
  margin-inline: 0;
  color: var(--guide-heading);
  font-weight: 780;
  letter-spacing: -0.025em;
  line-height: 1.14;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

h1 {
  max-inline-size: 20ch;
  margin-block: 0 clamp(1.5rem, 4vw, 2.5rem);
  font-size: clamp(2rem, 1rem + 5vw, 4.25rem);
  letter-spacing: -0.045em;
}

h1::after {
  display: block;
  inline-size: clamp(3.5rem, 12vw, 7rem);
  block-size: 0.3rem;
  margin-block-start: clamp(1rem, 2.5vw, 1.5rem);
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  content: "";
}

h2 {
  margin-block: clamp(2.5rem, 7vw, 4.5rem) 1rem;
  padding-block-start: clamp(1.25rem, 3vw, 2rem);
  border-block-start: 1px solid var(--guide-border);
  font-size: clamp(1.45rem, 1.15rem + 1.5vw, 2.25rem);
}

h3 {
  margin-block: 0.25rem 0.7rem;
  font-size: clamp(1.08rem, 1rem + 0.45vw, 1.35rem);
}

:where(p, ul, ol, blockquote, pre, table) {
  max-inline-size: 48rem;
}

p {
  margin-block: 0 1.15rem;
  text-wrap: pretty;
}

main > p:first-of-type {
  color: var(--guide-text-soft);
  font-size: clamp(1.05rem, 1rem + 0.35vw, 1.22rem);
  line-height: 1.78;
}

:where(ul, ol) {
  margin-block: 1.2rem 1.75rem;
  padding-block: clamp(1rem, 2.5vw, 1.4rem);
  padding-inline-end: clamp(1rem, 3vw, 1.5rem);
  padding-inline-start: clamp(2.25rem, 6vw, 3.15rem);
  background: var(--guide-surface-muted);
  border: 1px solid var(--guide-border);
  border-radius: 1.15rem;
}

li {
  padding-inline-start: 0.3rem;
}

li + li {
  margin-block-start: 0.55rem;
}

li::marker {
  color: var(--guide-accent);
  font-weight: 800;
}

a {
  color: var(--guide-accent);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:visited {
  color: var(--guide-accent-strong);
}

:where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--guide-focus);
  outline-offset: 4px;
}

main p > a[href^="https://apps.apple.com/app/id"] {
  display: inline-flex;
  min-block-size: 3rem;
  max-inline-size: 100%;
  align-items: center;
  justify-content: center;
  padding-block: 0.78rem;
  padding-inline: clamp(1rem, 4vw, 1.5rem);
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, #1849a9, #6938c6);
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(55, 48, 163, 0.24);
  font-weight: 760;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-overflow: ellipsis;
  unicode-bidi: isolate;
  vertical-align: middle;
  white-space: nowrap;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

main p > a[href^="https://apps.apple.com/app/id"]:visited {
  color: #fff;
}

main p > a[href^="https://apps.apple.com/app/id"] > strong {
  display: block;
  min-inline-size: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

main > div[itemscope][itemtype="https://schema.org/Question"] {
  max-inline-size: 48rem;
  margin-block: 1rem;
  padding-block: clamp(1.1rem, 3vw, 1.5rem);
  padding-inline: clamp(1rem, 3vw, 1.5rem);
  background: var(--guide-surface-muted);
  border: 1px solid var(--guide-border);
  border-radius: 1.15rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.045);
}

main > div[itemscope][itemtype="https://schema.org/Question"] p:last-child {
  margin-block-end: 0;
}

blockquote {
  margin-inline: 0;
  padding-block: 0.75rem;
  padding-inline-start: 1.25rem;
  color: var(--guide-text-soft);
  border-inline-start: 0.25rem solid var(--guide-accent);
}

:where(code, kbd, samp) {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

code {
  padding-block: 0.12em;
  padding-inline: 0.35em;
  background: var(--guide-surface-muted);
  border-radius: 0.35rem;
  font-size: 0.9em;
}

:where(pre, table) {
  overflow-x: auto;
}

img,
svg,
video {
  max-inline-size: 100%;
}

hr {
  margin-block: clamp(2.5rem, 7vw, 4.5rem) 1.5rem;
  border: 0;
  border-block-start: 1px solid var(--guide-border);
}

small {
  color: var(--guide-text-soft);
  font-size: 0.78rem;
  line-height: 1.55;
}

main > p:last-child {
  unicode-bidi: plaintext;
}

@media (hover: hover) {
  main p > a[href^="https://apps.apple.com/app/id"]:hover {
    filter: saturate(1.08);
    box-shadow: 0 16px 34px rgba(55, 48, 163, 0.32);
    transform: translateY(-1px);
  }
}

@media (max-width: 40rem) {
  main {
    inline-size: calc(100% - 1rem);
    padding-inline: 1rem;
    border-radius: 1.25rem;
  }

  main p > a[href^="https://apps.apple.com/app/id"] {
    display: flex;
    inline-size: 100%;
  }
}

@media screen and (prefers-color-scheme: dark) {
  :root {
    --guide-canvas: #070b14;
    --guide-glow: rgba(76, 110, 245, 0.2);
    --guide-surface: rgba(15, 23, 42, 0.97);
    --guide-surface-muted: #151e31;
    --guide-text: #e7ecf5;
    --guide-text-soft: #b8c1d1;
    --guide-heading: #f8fafc;
    --guide-accent: #8ec5ff;
    --guide-accent-strong: #c4b5fd;
    --guide-border: rgba(226, 232, 240, 0.16);
    --guide-focus: #84adff;
    --guide-shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  main,
  :where(ul, ol),
  main > div[itemscope][itemtype="https://schema.org/Question"] {
    border: 1px solid CanvasText;
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body,
  main {
    color: #000;
    background: #fff;
  }

  main {
    inline-size: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
  }

  main p > a[href^="https://apps.apple.com/app/id"],
  main p > a[href^="https://apps.apple.com/app/id"]:visited {
    min-block-size: 0;
    padding-block: 0.25rem;
    color: #000;
    background: transparent;
    border-color: #000;
    box-shadow: none;
  }
}