/* ─── Variables ─── */
:root {
  --dark:        #171d2c;
  --dark-mid:    #1e2640;
  --dark-card:   #1c2338;
  --dark-border: #2a3550;
  --light:       #f6ede2;
  --light-mid:   #eddfd0;
  --light-card:  #faf5ee;
  --light-border:#ddd0be;
  --teal:        #3dd6c0;
  --teal-dim:    rgba(61,214,192,0.12);
  --gold:        #c9a96e;
  --gold-dim:    rgba(201,169,110,0.12);
  --violet:      #a07ec8;
  --violet-dim:  rgba(160,126,200,0.12);
  --text-on-dark:       #dfe5f0;
  --text-on-dark-muted: #7b8fab;
  --text-on-light:      #231c10;
  --text-on-light-muted:#8a7d6e;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; overflow-x: hidden; }

/* ─── Shared animation ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Shared badges ─── */
.badge {
  display: inline-block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
}
.badge--teal   { background: var(--teal-dim);   color: var(--teal);   }
.badge--gold   { background: var(--gold-dim);   color: var(--gold);   }
.badge--violet { background: var(--violet-dim); color: var(--violet); }

/* ─── Site nav (shared by operator.html and human.html) ─── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-operator .site-nav {
  background: rgba(23, 29, 44, 0.90);
  border-bottom: 1px solid var(--dark-border);
}
.page-human .site-nav {
  background: rgba(246, 237, 226, 0.90);
  border-bottom: 1px solid var(--light-border);
}

/* Home mark */
.nav__home {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: opacity 0.2s;
}
.nav__home:hover { opacity: 0.7; }
.page-operator .nav__home { color: var(--teal); }
.page-human    .nav__home { color: var(--gold); }

/* Nav links */
.nav__links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav__link {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.page-operator .nav__link              { color: var(--text-on-dark-muted); }
.page-operator .nav__link:hover        { color: var(--text-on-dark); }
.page-operator .nav__link--operator.active { color: var(--teal); border-color: var(--teal); }

.page-human .nav__link                 { color: var(--text-on-light-muted); }
.page-human .nav__link:hover           { color: var(--text-on-light); }
.page-human .nav__link--human.active   { color: var(--gold); border-color: var(--gold); }

/* ─── Mobile nav ─── */
@media (max-width: 480px) {
  .site-nav { padding: 0 24px; }
  .nav__links { gap: 20px; }
  .nav__link  { font-size: 10px; letter-spacing: 0.12em; }
}