/* Navigation Upgrade - Sticky Nav with CTA and Trustpilot */
/* Implementation for: Top Navigation Redesign */

/* ============================================
   STICKY NAVIGATION WITH SCROLL SHADOW
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-300);
  height: var(--nav-height);
  z-index: 1000;
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

/* Add subtle shadow on scroll for depth */
.site-header.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-bottom-color: transparent;
}

/* ============================================
   DESKTOP NAVIGATION LAYOUT
   ============================================ */

@media (min-width: 810px) {
  .header-container {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto;
    align-items: center;
    gap: 24px;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
  }

  /* Logo - Left */
  .logo {
    grid-column: 1;
  }

  /* Main Nav - Centered */
  .main-nav {
    grid-column: 2;
    justify-self: center;
  }

  /* Trustpilot Badge - Center-Right */
  .trustpilot-badge {
    grid-column: 3;
    justify-self: center;
  }

  /* Primary CTA - Right */
  .nav-cta-primary {
    grid-column: 4;
  }

  /* Log In Link - Far Right */
  .nav-login {
    grid-column: 5;
  }

  /* Hide old Free signup button on desktop */
  .nav-cta.btn-mobile-cta {
    display: none;
  }
}

/* ============================================
   TRUSTPILOT BADGE
   ============================================ */

.trustpilot-badge {
  display: none; /* Hidden on mobile by default */
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-navy);
  white-space: nowrap;
}

@media (min-width: 810px) {
  .trustpilot-badge {
    display: flex;
  }
}

.trustpilot-stars {
  color: #00B67A; /* Trustpilot green */
  font-size: 16px;
  letter-spacing: 2px;
}

.trustpilot-rating {
  font-weight: var(--font-weight-medium);
  color: var(--color-navy);
}

/* ============================================
   PRIMARY CTA BUTTON
   ============================================ */

.nav-cta-primary {
  background: var(--color-teal);
  color: var(--color-white);
  padding: 12px 24px;
  border-radius: var(--radius-small);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-button);
}

.nav-cta-primary:hover {
  background: var(--color-teal-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(45, 155, 135, 0.2);
}

.nav-cta-primary:active {
  transform: translateY(0);
}

.nav-cta-primary:focus {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
}

/* ============================================
   LOG IN LINK
   ============================================ */

.nav-login,
.nav-login-link {
  color: var(--color-navy);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-login:hover,
.nav-login-link:hover {
  color: var(--color-teal);
  text-decoration: underline;
}

.nav-login:focus,
.nav-login-link:focus {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============================================
   MOBILE NAVIGATION (375px - 809px)
   ============================================ */

@media (max-width: 809px) {
  .header-container {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
  }

  /* Hamburger - Left */
  .mobile-hamburger {
    grid-column: 1;
  }

  /* Logo - Center */
  .logo {
    grid-column: 2;
    justify-self: center;
  }

  /* CTA Button - Right (visible on mobile) */
  .nav-cta-primary {
    grid-column: 3;
    padding: 10px 16px;
    font-size: 14px;
    min-height: 44px;
  }

  /* Hide desktop nav and login link on mobile */
  .main-nav,
  .trustpilot-badge,
  .nav-login,
  .nav-login-link {
    display: none;
  }

  /* Old free signup button - hide on mobile */
  .nav-cta.btn-mobile-cta {
    display: none;
  }
}

/* Very small screens optimization */
@media (max-width: 389px) {
  .header-container {
    gap: 8px;
    padding: 0 12px;
  }

  .nav-cta-primary {
    padding: 8px 12px;
    font-size: 13px;
  }

  .logo img {
    height: 48px;
  }
}

/* ============================================
   MOBILE MENU ENHANCEMENTS
   ============================================ */

/* Add Log In to mobile menu */
.mobile-menu-list .mobile-login {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: 16px;
  padding-top: 24px;
}

.mobile-menu-list .mobile-login a {
  color: var(--color-teal-light);
  font-size: 20px;
}

/* ============================================
   SCROLL BEHAVIOR - JavaScript Hook
   ============================================ */

/* Class added via JS when scrolled > 20px */
.site-header.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* ============================================
   LOGO SIZING
   ============================================ */

.logo img {
  height: 40px;
  width: auto;
  transition: height var(--transition-fast);
}

@media (max-width: 809px) {
  .logo img {
    height: 56px;
  }
}

@media (max-width: 389px) {
  .logo img {
    height: 48px;
  }
}

/* ============================================
   MAIN NAV LINKS (DESKTOP)
   ============================================ */

@media (min-width: 810px) {
  .nav-list {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-link {
    font-size: 15px;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: 4px 0;
    white-space: nowrap;
  }

  .nav-link:hover {
    color: var(--color-teal);
  }

  .nav-link:focus {
    outline: 2px solid var(--color-teal);
    outline-offset: 2px;
    border-radius: 4px;
  }

  .nav-link.active {
    color: var(--color-teal);
    border-bottom: 3px solid var(--color-teal);
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Skip to main content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 8px 16px;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--color-teal);
  color: var(--color-white);
  z-index: 9999;
}