/* nav.css — single source of truth for navigation styles and accent tokens.
   Linked after page-specific CSS on every page so these rules always win. */

/* ── Accent tokens (dark default) ──────────────────────────────────────── */
:root {
  --accent:      #F0EEE9;
  --accent-dim:  rgba(240, 238, 233, 0.18);
  --accent-glow: rgba(240, 238, 233, 0.55);
  --accent-soft: rgba(240, 238, 233, 0.08);
}
[data-theme="light"] {
  --accent:      #272E3D;
  --accent-dim:  rgba(39, 46, 61, 0.18);
  --accent-glow: rgba(39, 46, 61, 0.55);
  --accent-soft: rgba(39, 46, 61, 0.08);
}

/* ── Nav ────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 18px 32px;
  background: rgba(5, 6, 10, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: none;
}
[data-theme="light"] .nav {
  background: rgba(246, 247, 251, 0.95);
}
.nav__logo {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--display); font-weight: 500; font-size: 20px;
  letter-spacing: 0.02em;
  margin-left: 20px;
}
.nav__mark { height: 24px; width: auto; position: relative; display: flex; align-items: center; }.nav__logo-img { height: 24px; width: auto; display: block; }
[data-theme="light"] .nav__logo-img { filter: invert(1); }
.nav__links { display: flex; gap: 28px; font-size: 13px; color: var(--fg-dim); }
.nav__links a { transition: color 0.18s ease; }
.nav__links a:hover { color: var(--fg); }
.nav__links .nav__links-current { color: var(--accent); font-weight: 500; cursor: default; }
.nav__right { display: flex; align-items: center; gap: 8px; justify-self: end; }
.nav__pop { position: relative; }

.nav__cta {
  display: inline-flex; align-items: center; justify-content: center;
  height: 34px; padding: 0 20px;
  font-family: var(--display); font-size: 13px; font-weight: 600;
  background: var(--accent);
  border: 1px solid var(--accent); border-radius: 999px;
  color: var(--btn-primary-fg);
  transition: all 0.2s ease; cursor: pointer;
  white-space: nowrap;
}
.nav__cta:hover {
  opacity: 0.88;
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}

.nav__icon-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px; padding: 0 10px;
  border: 1px solid var(--line-strong); border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--fg-dim);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  cursor: pointer; transition: all 0.18s ease;
}
.nav__icon-btn:hover { color: var(--fg); border-color: var(--accent); }
.nav__icon-btn[aria-expanded="true"] { color: var(--accent); border-color: var(--accent); }
[data-theme="light"] .nav__icon-btn:hover { border-color: #000000; }
[data-theme="light"] .nav__icon-btn[aria-expanded="true"] { border-color: #000000; }
[data-theme="light"] .nav__icon-btn {
  background: #ffffff;
  border-color: rgba(10, 12, 24, 0.18);
  color: var(--fg);
  box-shadow: 0 1px 3px rgba(10, 12, 24, 0.10);
}
.nav__flag { font-size: 14px; line-height: 1; }
.nav__code { font-weight: 600; padding-left: 6px; }
.nav__theme-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.nav__theme-icon.is-light { color: #272E3D; }
.nav__theme-icon.is-dark  { color: #F0EEE9; }

@keyframes navmenu {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.nav__menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 180px; padding: 6px;
  background: var(--menu-bg);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line-strong); border-radius: 12px;
  display: flex; flex-direction: column; gap: 2px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  animation: navmenu 0.18s ease;
  z-index: 60;
}
.nav__menu-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border: 0; background: transparent;
  color: var(--fg-dim); cursor: pointer; border-radius: 6px;
  font-family: var(--body); font-size: 13px; text-align: left;
}
.nav__menu-item:hover { background: rgba(255, 255, 255, 0.05); color: var(--fg); }
.nav__menu-item.on    { color: var(--accent); background: var(--accent-soft); }
.nav__menu-code {
  margin-left: auto; font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.12em; color: var(--fg-faint);
}

/* Hamburger button — hidden on desktop, shown on mobile */
.nav__hamburger {
  display: none;
  align-items: center; justify-content: center;
  width: 34px; height: 34px; padding: 0; flex-shrink: 0;
  border: 1px solid var(--line-strong); border-radius: 999px;
  background: rgba(255,255,255,0.02);
  color: var(--fg-dim);
  cursor: pointer; transition: all 0.18s ease;
}
.nav__hamburger:hover { color: var(--fg); border-color: var(--accent); }
[data-theme="light"] .nav__hamburger {
  background: #ffffff; border-color: rgba(10,12,24,0.18);
  color: var(--fg); box-shadow: 0 1px 3px rgba(10,12,24,0.10);
}
[data-theme="light"] .nav__hamburger:hover { border-color: #000; }

/* Mobile dropdown menu — hidden on desktop */
.nav__mobile-menu { display: none; }

@media (max-width: 1024px) {
  .nav__links { display: none; }
  .nav { padding: 14px 20px; }
  .nav__right .nav__cta { display: none; }
  .nav__icon-btn { padding: 6px 8px; }
  .nav__hamburger { display: inline-flex; }
  .nav { display: flex; justify-content: space-between; }
  .nav__logo-text { display: none; }
  .nav__right { gap: 12px; }
  .nav__code { padding-left: 2px; }
  .nav__right > .nav__icon-btn { width: 34px; padding: 0; justify-content: center; }

  .nav__mobile-menu {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(5,6,10,0.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: 8px 20px 24px;
    gap: 0;
    animation: navmenu 0.2s ease;
    z-index: 1;
  }
  [data-theme="light"] .nav__mobile-menu {
    background: rgba(246,247,251,0.98);
  }

  .nav__mobile-link {
    display: block;
    padding: 14px 4px;
    font-family: var(--display); font-size: 16px; font-weight: 500;
    color: var(--fg-dim);
    border-bottom: 1px solid var(--line);
    transition: color 0.15s ease;
    text-decoration: none;
  }
  .nav__mobile-link:last-of-type { border-bottom: none; }
  .nav__mobile-link:hover { color: var(--fg); }
  .nav__mobile-link.current { color: var(--accent); cursor: default; }

  .nav__mobile-cta {
    display: flex; align-items: center; justify-content: center;
    margin-top: 20px; height: 44px; width: 100%;
    font-family: var(--display); font-size: 14px; font-weight: 600;
    background: var(--accent); border-radius: 999px;
    color: var(--btn-primary-fg);
    transition: opacity 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none; text-align: center;
  }
  .nav__mobile-cta:hover {
    opacity: 0.88;
    box-shadow: 0 0 24px var(--accent-glow);
  }
}

/* Compensate for fixed nav on pages that previously used sticky positioning */
.contact-hero,
.b-hero,
.a-hero {
  padding-top: max(100px, 10.5vh);
}