/* ===================
   HEADER & NAVIGATION
   =================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(248, 249, 253, 0.9);
  border-bottom: 1px solid rgba(223, 227, 246, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

.logo-mark {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.logo-text {
  font-size: 0.95rem;
}

.logo-tagline {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-left: 0.5rem;
  padding-left: 0.6rem;
  border-left: 1px solid var(--color-border);
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-text);
  background: rgba(46, 92, 255, 0.06);
}

.nav-links a.active {
  color: var(--color-accent) !important;
  background: rgba(46, 92, 255, 0.15) !important;
  font-weight: 600 !important;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.header-cta-btn {
  gap: 0.4rem;
}

.cta-icon {
  flex-shrink: 0;
}

/* CTA text variants - full by default, short on mobile */
.cta-text-short {
  display: none;
}

.lang-toggle {
  display: inline-flex;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  padding: 2px;
  background: #ffffff;
}

.lang-btn {
  border: none;
  background: transparent;
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  color: var(--color-text-muted);
}

.lang-btn.active {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

/* NAV TOGGLE (Mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 2px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background: #151726;
}

/* Header Responsive */
@media (max-width: 720px) {
  .site-header .header-inner {
    min-height: 56px;
  }

  /* Hide tagline on mobile */
  .logo-tagline {
    display: none;
  }

  /* Hide language toggle on mobile */
  .lang-toggle {
    display: none;
  }

  /* Shorten CTA button on mobile */
  .header-cta-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .header-cta-btn .cta-icon {
    display: none;
  }

  .cta-text-full {
    display: none;
  }

  .cta-text-short {
    display: inline;
  }

  .nav-links {
    position: absolute;
    top: 56px;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 14px;
    padding: 0.75rem 1rem;
    flex-direction: column;
    gap: 0.6rem;
    min-width: 160px;
    box-shadow: 0 18px 40px rgba(22, 30, 70, 0.18);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    gap: 0.6rem;
  }
}

/* Extra small screens */
@media (max-width: 480px) {
  .logo-text {
    font-size: 0.85rem;
  }

  .header-cta-btn {
    padding: 0.45rem 0.65rem;
    font-size: 0.75rem;
  }
}