*::before,*::after{
  box-sizing: border-box;
}
:root{
  --brand-primary: #FFD700;
  --brand-secondary: #1a1a2e;
  --brand-accent: #e94560;
  --brand-bg: #0f0f23;
  --brand-surface: #16213e;
  --brand-text: #ffffff;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}body{
  font-family: var(--font-body);
  color: var(--brand-text);
  background-color: var(--brand-bg);
  margin: 0;
  line-height: 1.6;
}h1,h2,h3,h4,h5,h6{
  font-family: var(--font-heading);
  line-height: 1.2;
}a{
  color: var(--brand-primary);
  text-decoration: none;
}a:hover{
  color: color-mix(in srgb, var(--brand-primary) 80%, white);
}
.mercury-section{
  padding: var(--spacing-xl) var(--spacing-md);
}.mercury-section:nth-child(even){
  background-color: var(--brand-surface);
}
.mercury-faq-item{
  border-bottom: 1px solid color-mix(in srgb, var(--brand-text) 10%, transparent);
}.mercury-faq-question{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
}.mc-langsw[hidden]{ display: none; }.mc-langsw__btn{
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 12px; border-radius: 8px; cursor: pointer;
  font: inherit; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; line-height: 1;
  color: var(--mc-text, var(--brand-text, #fff));
  background: color-mix(in srgb, currentColor 10%, transparent);
  border: 1px solid var(--mc-hairline, rgba(255, 255, 255, 0.2));
  transition: background 0.2s ease, border-color 0.2s ease;
}.mc-langsw__btn:hover{
  background: color-mix(in srgb, currentColor 18%, transparent);
  border-color: var(--mc-primary, var(--brand-primary, #FFD700));
}.mc-langsw__caret{ transition: transform 0.2s ease; }.mc-langsw.is-open .mc-langsw__caret{ transform: rotate(180deg); }.mc-langsw__menu{
  position: absolute; top: calc(100% + 8px); inset-inline-end: 0; z-index: 60;
  min-width: 176px; margin: 0; padding: 6px; list-style: none;
  background: var(--mc-secondary, var(--brand-surface, #16213e));
  border: 1px solid var(--mc-hairline, rgba(255, 255, 255, 0.16));
  border-radius: 10px; box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}.mc-langsw.is-open .mc-langsw__menu{ opacity: 1; visibility: visible; transform: translateY(0); }
section[id]{ scroll-margin-top: 90px; }