/* ============================================================
   MAIN.CSS — structure & components
   All colors come from theme.css via CSS variables.
   Do NOT add hex values here — update theme.css instead.
   ============================================================ */

@import url("./theme.css");

/* ── Fonts ── */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
[hidden] { display: none !important; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main { flex: 1 0 auto; }

img, video, iframe { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--code); }

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

:not(pre) > code {
  background: var(--code-bg);
  color: var(--code);
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 0.9em;
  border: 1px solid color-mix(in srgb, var(--code), transparent 82%);
}

pre {
  background: var(--code-block-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.9em;
  line-height: 1.55;
  color: var(--text);
}

/* ── Skip link ── */
.skip-link {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 16px; top: 16px;
  width: auto; height: auto;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 8px;
  z-index: 9999;
  font-weight: 700;
}

/* ── Container ── */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg), transparent 14%);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.logo:hover { color: var(--text); }
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  display: grid;
  place-items: center;
  color: var(--bg);
  font-weight: 900;
  font-size: 18px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.site-nav a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 0.94rem;
  font-weight: 500;
  transition: all .2s ease;
}
.site-nav a:hover {
  color: var(--text);
  background: var(--accent-glow);
}
.site-nav a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-glow);
}
.site-nav .nav-cta {
  padding: 8px 16px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  border-radius: 10px;
  margin-left: 8px;
}
.site-nav .nav-cta:hover {
  background: var(--accent-hover);
  color: var(--bg);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: all .2s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--bg);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 0;
}
.btn-ghost:hover { color: var(--text); }

/* ── Footer ── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: auto;
  padding: 40px 24px;
}
.footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-dim);
  font-size: 0.88rem;
}
.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-dim);
  transition: color .2s;
}
.footer-links a:hover { color: var(--code); }

/* ── Mobile nav ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  margin: 0 auto;
  transition: all .3s cubic-bezier(.22,1,.36,1);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .container { padding: 0 16px; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0; bottom: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 20px 20px 40px;
    transform: translateX(100%);
    transition: transform .35s cubic-bezier(.22,1,.36,1);
    z-index: 99;
    overflow-y: auto;
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav a {
    padding: 14px 16px;
    font-size: 1.05rem;
    border-radius: 12px;
  }
  .site-nav .nav-cta {
    margin-top: 12px;
    margin-left: 0;
    text-align: center;
    padding: 14px 16px;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}