/* Header-specific styles for Techkilif */

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
}

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

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--gray-900);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.header__logo-mark .fa-screwdriver-wrench {
  font-size: 1.1rem;
}

.header__logo-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
}

/* Navigation */
.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header__nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-base), border-color var(--transition-base);
}

.header__nav-link:hover,
.header__nav-link:focus-visible {
  color: var(--color-text);
  border-color: var(--gray-200);
}

.header__nav-item--cta {
  margin-left: var(--space-2);
}

.header__cta {
  font-size: var(--font-size-sm);
  padding: 10px 20px !important;
  color: white !important;
}

/* Mobile menu toggle */
.header__menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  color: var(--gray-800);
  cursor: pointer;
  transition: background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.header__menu-toggle:hover,
.header__menu-toggle:focus-visible {
  background-color: var(--gray-100);
  border-color: var(--gray-300);
  box-shadow: var(--shadow-sm);
}

.header__menu-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
}

.header__menu-toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-700);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__menu-toggle-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

/* Mobile overlay (for full-screen menu) */
.header__mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.header__mobile-overlay.is-visible {
  opacity: 1;
}

/* Mobile nav panel */
@media (max-width: 767.98px) {
  .header__nav {
    display: block;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: #ffffff;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-4) var(--space-5);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .header__nav-item--cta {
    width: 100%;
  }

  .header__nav-item--cta .header__cta {
    width: 100%;
    justify-content: center;
  }

  .header__nav-link {
    font-size: var(--font-size-md);
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scaleY(1);
  }

  .header__menu-toggle[aria-expanded="true"] .header__menu-toggle-line:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }

  .header__menu-toggle[aria-expanded="true"] .header__menu-toggle-line:nth-child(2) {
    opacity: 0;
  }

  .header__menu-toggle[aria-expanded="true"] .header__menu-toggle-line:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }
}

/* Desktop layout */
@media (min-width: 768px) {
  .header__menu-toggle {
    display: none;
  }

  .header__nav {
    display: block;
    position: static;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    transform: none;
    padding: 0;
  }

  .header__mobile-overlay {
    display: none;
  }
}

/* Utility state when JS is disabled: ensure nav is visible */
.no-js .header__nav {
  display: block;
}

.no-js .header__mobile-overlay,
.no-js .header__menu-toggle {
  display: none !important;
}