/* Header styles for CIK FINANCIAL LTD */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(245, 248, 252, 0.96), rgba(245, 248, 252, 0.88));
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0, #4f8ce0, var(--color-primary-dark));
  color: #ffffff;
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
}

.site-header__text-group {
  display: flex;
  flex-direction: column;
}

.site-header__site-name {
  font-weight: 600;
  font-size: var(--font-size-md);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray-900);
}

.site-header__tagline {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
}

/* Navigation */

.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  padding: 0.35rem 0.25rem;
  text-decoration: none;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--gray-500));
  transition: width var(--duration-normal) var(--timing-standard);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-primary-dark);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  width: 100%;
}

.site-header__nav-item--cta .site-header__nav-link--button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(31, 79, 150, 0.14);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.site-header__nav-item--cta .site-header__nav-link--button:hover,
.site-header__nav-item--cta .site-header__nav-link--button:focus-visible {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

/* Mobile toggle button */

.site-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(31, 79, 150, 0.2);
  background: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.site-header__toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.site-header__toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-800);
  transition: transform var(--duration-normal) var(--timing-standard),
    opacity var(--duration-normal) var(--timing-standard),
    width var(--duration-normal) var(--timing-standard);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.site-header__toggle:active,
.site-header__toggle:focus {
  background: rgba(255, 255, 255, 0.85);
  color: inherit;
}

/* Toggle animation when menu is open */

.site-header--menu-open .site-header__toggle-line:first-child {
  transform: translateY(3px) rotate(45deg);
}

.site-header--menu-open .site-header__toggle-line:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .site-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(245, 248, 252, 0.98);
    border-bottom: 1px solid var(--color-border-subtle);
    box-shadow: var(--shadow-sm);
    transform-origin: top;
    transform: scaleY(1);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3) var(--space-4) var(--space-4);
    gap: var(--space-2);
  }

  .site-header__nav-link {
    padding-block: 0.5rem;
  }

  .site-header__nav-item--cta .site-header__nav-link--button {
    width: 100%;
    justify-content: center;
  }

  /* JS-enhanced: hide menu when closed */
  .js-enabled .site-header__nav {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: scaleY(0.95);
    transition: max-height var(--duration-slow) var(--timing-standard),
      opacity var(--duration-normal) var(--timing-standard),
      transform var(--duration-normal) var(--timing-standard);
  }

  .js-enabled .site-header--menu-open .site-header__nav {
    max-height: 420px;
    opacity: 1;
    transform: scaleY(1);
  }
}

@media (max-width: 520px) {
  .site-header__site-name {
    font-size: var(--font-size-sm);
  }

  .site-header__tagline {
    display: none;
  }
}