/* Component Styles - PBS */
/* Navigation, Buttons, Cards, Footer, Forms */

/* ===================================
   Header / Navigation
   =================================== */

header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  padding: 0 var(--container-padding);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-blue-700);
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-bold);
  font-size: var(--text-lg);
}

.logo-image {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: var(--radius-md);
}

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

.nav-link {
  position: relative;
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-500);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.nav-link:hover {
  color: var(--color-blue-700);
  background: var(--color-blue-50);
}

.nav-link.active {
  color: var(--color-blue-700);
  background: var(--color-blue-100);
}

.nav-link:focus,
.nav-link:focus-visible {
  outline: none;
}

/* Mobile Menu */
.mobile-menu-button {
  display: none;
  padding: var(--space-2);
  color: var(--color-gray-900);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
}

.mobile-menu.active {
  display: flex;
}

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-500);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  color: var(--color-blue-700);
  background: var(--color-blue-50);
}

.mobile-nav-link.active {
  color: var(--color-blue-700);
  background: var(--color-blue-100);
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .mobile-menu-button {
    display: block;
  }
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-align: center;
  line-height: 1.5;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-outline {
  background: var(--color-white);
  color: var(--color-blue-700);
  border: 2px solid var(--color-blue-700);
}

.btn-outline:hover {
  background: var(--color-blue-700);
  color: var(--color-white);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline-white:hover {
  background: var(--color-white);
  color: var(--color-blue-700);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn i {
  transition: transform var(--transition-base);
}

.btn:hover i {
  transform: translateX(4px);
}

/* ===================================
   Cards
   =================================== */

.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  height: 100%;
}

.card:hover {
  border-color: var(--color-blue-300);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 32px;
  background: var(--gradient-primary);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  line-height: var(--leading-tight);
}

.card-description {
  font-size: var(--text-base);
  color: var(--color-gray-600);
  line-height: var(--leading-relaxed);
}

/* ===================================
   Badges
   =================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
}

.badge-blue {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-blue-700);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-teal {
  background: var(--color-lightblue-100);
  color: var(--color-lightblue-700);
}

.badge-amber {
  background: var(--color-gold-100);
  color: var(--color-gold-700);
}

.badge-green {
  background: var(--color-green-100);
  color: var(--color-green-700);
}

/* ===================================
   Check List
   =================================== */

.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-gray-700);
  font-size: var(--text-base);
}

.check-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-green-500);
  font-weight: var(--font-bold);
}

/* ===================================
   Footer
   =================================== */

footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-16) 0 var(--space-8);
}

footer h3,
footer h4 {
  color: var(--color-white);
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  font-weight: var(--font-bold);
}

footer p {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-2);
}

footer a {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

footer a:hover {
  color: var(--color-white);
}

footer ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

footer ul li a {
  display: block;
  padding: var(--space-1) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-800);
  padding-top: var(--space-8);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* ===================================
   Forms
   =================================== */

.form-group {
  margin-bottom: var(--space-6);
}

label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-700);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
  background: var(--color-white);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-blue-500);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 56, 150, 0.1);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Form Helper Text */
.helper-text {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin-top: var(--space-2);
}

.error-text {
  font-size: var(--text-sm);
  color: var(--color-red-600);
  margin-top: var(--space-2);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #002a6e;
  overflow: hidden;
}

.hero-bg-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  z-index: 0;
}

.hero-bg-slide.active {
  opacity: 1;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 56, 150, 0.46), rgba(0, 42, 110, 0.56));
  z-index: 1;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 56, 150, 0.06), rgba(2, 132, 199, 0.06));
  pointer-events: none;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-16) var(--space-4);
}

.hero-content h1 {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--text-2xl);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  font-weight: var(--font-medium);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-8);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero {
    min-height: 500px;
  }
  
  .hero-content h1 {
    font-size: var(--text-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-xl);
  }
  
  .hero-tagline {
    font-size: var(--text-lg);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ===================================
   Section Headers
   =================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-xl);
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section-header h2 {
    font-size: var(--text-3xl);
  }
  
  .section-subtitle {
    font-size: var(--text-lg);
  }
}

/* ===================================
   Trust Strip / Stats
   =================================== */

.trust-strip {
  background: var(--color-white);
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-align: left;
}

.trust-icon {
  font-size: 3rem;
  flex-shrink: 0;
  color: var(--color-blue-600);
}

.trust-number {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-blue-700);
  line-height: 1;
}

.trust-label {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin-top: var(--space-1);
}

@media (max-width: 768px) {
  .trust-items {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .trust-item {
    flex-direction: column;
    text-align: center;
  }
}
/* ===================================
   Scroll Progress Bar
   =================================== */

.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-primary);
  width: 0%;
  z-index: var(--z-tooltip);
  transition: width 0.1s ease-out;
}

/* ===================================
   Floating Section Navigation (Scroll Spy)
   =================================== */

.section-nav {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-fixed);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3);
}

.section-nav-dot {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-gray-300);
  border: 2px solid var(--color-gray-400);
  transition: all var(--transition-base);
  cursor: pointer;
}

.section-nav-dot:hover {
  background: var(--color-gray-500);
  transform: scale(1.3);
}

.section-nav-dot.active {
  background: var(--color-blue-600);
  border-color: var(--color-blue-600);
  box-shadow: 0 0 0 4px rgba(0, 56, 150, 0.2);
  transform: scale(1.4);
}

/* Tooltip on hover */
.section-nav-dot::before {
  content: attr(data-tooltip);
  position: absolute;
  right: calc(100% + 1rem);
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.section-nav-dot::after {
  content: '';
  position: absolute;
  right: calc(100% + 0.5rem);
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-gray-900);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.section-nav-dot:hover::before,
.section-nav-dot:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Screen reader only text */
.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;
}

/* Hide section nav on mobile */
@media (max-width: 768px) {
  .section-nav {
    display: none;
  }
}

/* ===================================
   Cross-Page Scroll Indicators
   =================================== */

.scroll-indicator {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-6);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-700);
  z-index: var(--z-sticky);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.scroll-indicator.top {
  top: 5rem;
  transform: translateX(-50%) translateY(-20px);
}

.scroll-indicator.bottom {
  bottom: 2rem;
  transform: translateX(-50%) translateY(20px);
}

.scroll-indicator.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-indicator.top.visible {
  transform: translateX(-50%) translateY(0);
}

.scroll-indicator.bottom.visible {
  transform: translateX(-50%) translateY(0);
}

.scroll-indicator-icon {
  width: 20px;
  height: 20px;
  animation: bounce 2s infinite;
}

.scroll-indicator.top .scroll-indicator-icon {
  transform: rotate(180deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-5px);
  }
  60% {
    transform: translateY(-3px);
  }
}

.scroll-indicator.top .scroll-indicator-icon {
  animation: bounceUp 2s infinite;
}

@keyframes bounceUp {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0) rotate(180deg);
  }
  40% {
    transform: translateY(5px) rotate(180deg);
  }
  60% {
    transform: translateY(3px) rotate(180deg);
  }
}

@media (max-width: 768px) {
  .scroll-indicator {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-4);
  }
}