:root {
  --site-max-width: 1200px;
  --surface-base: var(--color-bg, #faf9f7);
  --surface-card: #fff;
  --surface-muted: color-mix(in srgb, var(--color-primary, #1f3a99) 6%, white);
  --border-subtle: color-mix(in srgb, var(--color-primary, #1f3a99) 14%, white);
  --shadow-soft: 0 18px 40px rgb(18 29 62 / 10%);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text, #1a2040);
  font-family: var(--font-sans, 'Inter', system-ui, sans-serif);
  line-height: var(--line-height-normal, 1.6);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background:
    radial-gradient(ellipse 900px 600px at 5% -5%, color-mix(in srgb, var(--gem-gold-native-flat, #c88c00) 8%, transparent), transparent),
    radial-gradient(ellipse 800px 500px at 95% -8%, color-mix(in srgb, var(--gem-sapphire-flat, #1f3a99) 10%, transparent), transparent),
    radial-gradient(ellipse 600px 600px at 50% 100%, color-mix(in srgb, var(--gem-labradorite-flat, #2d3f6e) 5%, transparent), transparent),
    var(--surface-base);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

.site-container,
.container {
  width: min(100% - 2rem, var(--site-max-width));
  margin-inline: auto;
}

/* ── Section Eyebrow — gold authority bar ─────────────────────────── */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  padding: 0.35rem 0.9rem 0.35rem 0;
  font-size: 0.72rem;
  font-weight: var(--font-weight-extrabold, 800);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-contrast, #825a1e);
}

.section-eyebrow::before {
  content: '';
  width: 2rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-contrast, #825a1e), color-mix(in srgb, var(--color-accent-contrast, #825a1e) 30%, transparent));
  border-radius: var(--radius-full, 999px);
}

/* ── Primary CTA Button — deep sapphire authority ─────────────────── */
.btn-primary,
.btn-ghost,
.btn-lg,
.btn-block {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.875rem;
  padding: 0.9rem 1.35rem;
  border-radius: var(--radius-full, 999px);
  border: 1px solid transparent;
  font-weight: var(--font-weight-bold, 700);
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--duration-fast, 150ms) var(--ease-out),
              box-shadow var(--duration-normal, 250ms) var(--ease-out),
              border-color var(--duration-fast, 150ms) ease,
              background-color var(--duration-fast, 150ms) ease;
}

.btn-primary {
  color: var(--gem-sapphire-text, #d0dcff);
  background: var(--gem-sapphire, linear-gradient(135deg, #0a1a6e 0%, #1f3a99 35%, #3d64cc 60%, #128 100%));
  box-shadow: 0 12px 26px color-mix(in srgb, var(--gem-sapphire-flat, #1f3a99) 22%, transparent);
}

.btn-primary:hover {
  box-shadow:
    0 16px 36px color-mix(in srgb, var(--gem-sapphire-flat, #1f3a99) 30%, transparent),
    var(--shadow-glow-primary, 0 0 32px rgb(31 58 153 / 20%));
}

.btn-ghost {
  color: var(--color-text, #1a2040);
  background: var(--glass-bg-strong, rgb(255 255 255 / 76%));
  border-color: var(--border-subtle);
  backdrop-filter: blur(12px);
}

.btn-ghost:hover {
  border-color: var(--color-primary, #1f3a99);
  box-shadow: 0 4px 20px rgb(31 58 153 / 12%);
}

.btn-lg {
  padding-inline: 1.65rem;
  font-size: 0.95rem;
}

.btn-block {
  width: 100%;
}

.btn-primary:hover,
.btn-ghost:hover,
.site-header__btn:hover,
.flag-hero__cta:hover,
.replay-btn:hover {
  transform: translateY(-2px);
}

.homepage-body section,
.app-page section {
  position: relative;
}

/* ── Focus Visible — accessible keyboard focus ring ───────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary, #1f3a99);
  outline-offset: 2px;
}

/* ── Selection — branded highlight ────────────────────────────────── */
::selection {
  background: color-mix(in srgb, var(--color-primary, #1f3a99) 18%, transparent);
  color: var(--color-text, #1a2040);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn-primary,
  .btn-ghost,
  .site-header__btn,
  .flag-hero__cta,
  .replay-btn {
    transition: none;
  }

  .btn-primary:hover,
  .btn-ghost:hover,
  .site-header__btn:hover,
  .flag-hero__cta:hover,
  .replay-btn:hover {
    transform: none;
  }
}