/* UKMA — LAYOUT STYLES */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  transition: background var(--t-med) var(--ease), box-shadow var(--t-med);
}
.site-header.scrolled {
  background: rgba(5,8,16,0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border), 0 8px 32px rgba(0,0,0,0.5);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: .2rem;
  text-decoration: none;
}
.logo-bolt {
  font-size: 1.4rem;
  filter: drop-shadow(0 0 8px var(--blue));
  animation: bolt-pulse 2s ease-in-out infinite;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.6rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-primary);
}
.logo-sub {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--blue);
  align-self: flex-end;
  padding-bottom: .2rem;
}

@keyframes bolt-pulse {
  0%,100% { filter: drop-shadow(0 0 6px var(--blue)); }
  50% { filter: drop-shadow(0 0 14px #7DD6FF) drop-shadow(0 0 28px var(--blue)); }
}

/* Desktop nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: .25rem;
}
@media (min-width: 1024px) { .nav-desktop { display: flex; } }

.nav-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
  padding: .4rem .75rem;
  border-radius: var(--radius);
  transition: color var(--t-fast), background var(--t-fast);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: .75rem; right: .75rem;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med) var(--ease-out);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
}

/* Language switcher */
.lang-switcher {
  display: none;
  align-items: center;
  gap: .25rem;
  padding: .25rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
@media (min-width: 768px) { .lang-switcher { display: flex; } }

.lang-btn {
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 700;
  color: var(--text-secondary);
  padding: .2rem .45rem;
  border-radius: 4px;
  transition: all var(--t-fast);
}
.lang-btn:hover, .lang-btn.active { background: var(--blue); color: #fff; }

/* Burger */
.burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: .4rem;
}
@media (min-width: 1024px) { .burger { display: none; } }
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--t-med) var(--ease), opacity var(--t-fast);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  position: fixed;
  top: var(--header-h); left: 0; right: 0; bottom: 0;
  background: rgba(5,8,16,0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform var(--t-slow) var(--ease-out);
  z-index: 999;
  overflow-y: auto;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav nav { display: flex; flex-direction: column; gap: .25rem; }
.mobile-nav-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-secondary);
  padding: .75rem 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--t-fast), padding-left var(--t-med) var(--ease-out);
}
.mobile-nav-link:hover { color: var(--blue); padding-left: .75rem; }