/* ============================================================
   CLEANFREQS — nav.css
   Shared floating top nav. Used across all pages.
   Designed to coexist with .tag-collective / .links during
   transition; remove those from HTML when ready.
   ============================================================ */

.nav {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;

  width: min(960px, calc(100vw - 2rem));
  padding: 0.6rem 1.1rem 0.6rem 0.9rem;

  background: rgba(5, 5, 5, 0.65);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;

  transition: padding 0.3s ease,
              background 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

.nav.is-compact {
  padding: 0.45rem 1rem 0.45rem 0.75rem;
  background: rgba(5, 5, 5, 0.78);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

/* ── BRAND (left side) ───────────────────────────────────── */
.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--fg);
  flex-shrink: 0;
}

.nav__logo {
  width: 26px;
  height: 26px;
  object-fit: contain;
  border-radius: 50%;
  transition: width 0.3s ease, height 0.3s ease;
}

.nav.is-compact .nav__logo {
  width: 22px;
  height: 22px;
}

.nav__brand-text {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg);
}

/* ── LINKS (right side) ──────────────────────────────────── */
.nav__links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav__links a {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  font-weight: 300;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(240, 237, 230, 0.6);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
  padding: 0.2rem 0;
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--green);
}

/* Subtle underline indicator for active page */
.nav__links a.is-active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--green);
  opacity: 0.6;
}

/* ── MOBILE ──────────────────────────────────────────────── */
@media (max-width: 600px) {
  .nav {
    top: 0.7rem;
    width: calc(100vw - 1.4rem);
    padding: 0.55rem 0.9rem 0.55rem 0.65rem;
    gap: 1rem;
  }

  .nav.is-compact {
    padding: 0.4rem 0.85rem 0.4rem 0.55rem;
  }

  .nav__logo {
    width: 22px;
    height: 22px;
  }

  .nav.is-compact .nav__logo {
    width: 20px;
    height: 20px;
  }

  .nav__brand-text {
    font-size: 0.6rem;
    letter-spacing: 0.18em;
  }

  .nav__links {
    gap: 0.9rem;
  }

  .nav__links a {
    font-size: 0.58rem;
    letter-spacing: 0.16em;
  }
}

@media (max-width: 380px) {
  .nav {
    gap: 0.8rem;
  }
  .nav__brand-text {
    /* Hide brand text on very narrow screens — logo alone */
    display: none;
  }
  .nav__links {
    gap: 0.75rem;
  }
}

/* ── REDUCED MOTION ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .nav,
  .nav__logo {
    transition: none;
  }
}