/* site-chrome.css — shared design tokens, base elements, site nav, footer, skip link */

:root {
  color-scheme: dark;
  --bg: #0e0e11;
  --text: #b8b8c0;
  --text-muted: #8888a0;
  --text-faint: #666680;
  --white: #ffffff;
  --purple: #bb86fc;
  --purple-light: #d9b6ff;
  --teal: #03dac5;
  --teal-light: #6ef2e6;
  --green: #4ade80;
  --green-soft: rgba(74, 222, 128, 0.12);
  --green-border: rgba(74, 222, 128, 0.35);
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.14);
  --nav-width: 1080px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--purple);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--purple-light);
}

a:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 12px 20px;
  background: var(--purple);
  color: #121212;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(14, 14, 17, 0.7);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-nav__inner {
  max-width: var(--nav-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
}

.site-nav__brand:hover {
  color: var(--white);
}

.site-nav__logo {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
  background: linear-gradient(135deg, var(--purple) 50%, var(--teal) 50%);
}

.site-nav__logo--small {
  width: 16px;
  height: 16px;
}

.site-nav__icon-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-nav__icon-logo {
  height: 16px;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.site-nav__links {
  display: flex;
  gap: 24px;
}

.site-nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

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

/* Mobile nav toggle */
.site-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.site-nav__toggle:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.site-nav__toggle:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 2px;
}

.site-nav__toggle-icon {
  display: block;
}

.site-nav__toggle-icon--close {
  display: none;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon--open {
  display: none;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-icon--close {
  display: block;
}

/* Hero stats pills (shared between homepage hero and guide pages) */
.hero__stats {
  position: relative;
  z-index: 1;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
}

.hero__stats li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 7px 14px;
}

.hero__stats-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
  flex-shrink: 0;
}

.hero__stats-dot--purple {
  background: var(--purple);
}

.hero__stats-dot--teal {
  background: var(--teal);
}

/* Footer */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8rem;
  color: var(--text-faint);
}

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

/* Responsive nav */
@media (max-width: 680px) {
  .site-nav__inner {
    padding: 12px 16px;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px 20px;
    gap: 4px;
    display: none;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .site-nav__links a {
    padding: 10px 0;
    font-size: 0.95rem;
  }
}