/* ============================================
   America United Now - Styles
   ============================================ */

/* 1. CSS Reset & Base Styles
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  color: #111827;
  background-color: #f9fafb;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

/* 2. CSS Variables
   ============================================ */
:root {
  /* Colors */
  --color-red-50: #fef2f2;
  --color-red-100: #fee2e2;
  --color-red-600: #dc2626;
  --color-red-700: #b91c1c;
  --color-red-900: #7f1d1d;

  --color-blue-50: #eff6ff;
  --color-blue-100: #dbeafe;
  --color-blue-600: #2563eb;
  --color-blue-700: #1d4ed8;
  --color-blue-900: #1e3a8a;

  --color-gray-50: #f9fafb;
  --color-gray-200: #e5e7eb;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-900: #111827;

  --color-purple-50: #faf5ff;
  --color-purple-100: #f3e8ff;
  --color-purple-600: #9333ea;

  --color-green-100: #dcfce7;
  --color-green-600: #16a34a;

  /* Shadows */
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* 3. Utility Classes
   ============================================ */
.container {
  max-width: 80rem;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* 4. Navigation Styles
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 0.3s ease;
}

.nav:not([data-scrolled="true"]) {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
}

.nav[data-scrolled="true"] {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 5rem;
}

@media (min-width: 640px) {
  .nav-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .nav-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  transition: color 0.3s ease;
}

@media (min-width: 640px) {
  .nav-logo {
    font-size: 1.25rem;
  }
}

.nav:not([data-scrolled="true"]) .nav-logo {
  color: white;
}

.nav[data-scrolled="true"] .nav-logo {
  color: var(--color-gray-900);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  transition: color 0.2s ease;
  cursor: pointer;
}

.nav:not([data-scrolled="true"]) .nav-link {
  color: white;
}

.nav[data-scrolled="true"] .nav-link {
  color: var(--color-gray-700);
}

.nav-link:hover {
  color: var(--color-red-600);
}

.nav-mobile-btn {
  display: block;
  padding: 0.5rem;
  color: inherit;
}

@media (min-width: 768px) {
  .nav-mobile-btn {
    display: none;
  }
}

.nav:not([data-scrolled="true"]) .nav-mobile-btn {
  color: white;
}

.nav[data-scrolled="true"] .nav-mobile-btn {
  color: var(--color-gray-900);
}

.nav-mobile-menu {
  display: none;
  background: white;
  border-top: 1px solid var(--color-gray-200);
}

.nav-mobile-menu.active {
  display: block;
}

@media (min-width: 768px) {
  .nav-mobile-menu {
    display: none !important;
  }
}

.nav-mobile-menu-inner {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nav-mobile-link {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 1rem;
  color: var(--color-gray-700);
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

.nav-mobile-link:hover {
  background-color: #fef2f2;
  color: var(--color-red-600);
}

/* 5. Hero Section
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('https://www.arlingtontours.com/wp-content/uploads/2016/07/guide-to-tomb-unknown-soldier.jpg');
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to right, rgba(30, 58, 138, 0.9), rgba(127, 29, 29, 0.7), rgba(30, 58, 138, 0.9));
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .hero-content {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-content {
    padding: 0 2rem;
  }
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: #e5e7eb;
  margin-bottom: 2rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

@media (min-width: 640px) {
  .hero-subtitle {
    font-size: 1.25rem;
  }
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 1.5rem;
  }
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
  display: none;
}

@media (min-width: 640px) {
  .scroll-indicator {
    display: block;
  }
}

.scroll-indicator-inner {
  width: 1.5rem;
  height: 2.5rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 9999px;
  display: flex;
  justify-content: center;
  padding-top: 0.5rem;
}

.scroll-indicator-dot {
  width: 0.25rem;
  height: 0.75rem;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 9999px;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

/* 6. Button Styles
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1.125rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-red-600);
  color: white;
  box-shadow: var(--shadow-2xl);
}

.btn-primary:hover {
  background: var(--color-red-700);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-blue-900);
  border: 2px solid white;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}

.btn-outline:hover {
  background: white;
}

.btn-full {
  width: 100%;
}

@media (min-width: 640px) {
  .btn-full {
    width: auto;
  }
}

.btn-blue {
  background: var(--color-blue-600);
  color: white;
}

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

.btn-red {
  background: var(--color-red-600);
  color: white;
}

.btn-red:hover {
  background: var(--color-red-700);
}

/* 7. Card Styles
   ============================================ */
.card {
  border-radius: 0.5rem;
  overflow: hidden;
}

.card-header {
  padding: 1.5rem;
}

@media (min-width: 640px) {
  .card-header {
    padding: 2rem;
  }
}

.card-content {
  padding: 1.5rem;
}

@media (min-width: 640px) {
  .card-content {
    padding: 2rem;
  }
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
}

@media (min-width: 640px) {
  .card-title {
    font-size: 1.5rem;
  }
}

/* 8. Platform Section
   ============================================ */
.platform {
  padding: 6rem 0;
  background: white;
}

@media (min-width: 768px) {
  .platform {
    padding: 8rem 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .section-title {
    font-size: 3rem;
  }
}

.section-divider {
  width: 6rem;
  height: 0.25rem;
  background: linear-gradient(to right, var(--color-red-600), white, var(--color-blue-600));
  margin: 0 auto 2rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .section-description {
    font-size: 1.25rem;
  }
}

.platform-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .platform-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
  }
}

.platform-card {
  border: none;
  box-shadow: var(--shadow-xl);
  transition: box-shadow 0.3s ease;
}

.platform-card:hover {
  box-shadow: var(--shadow-2xl);
}

.platform-card-red {
  background: linear-gradient(to bottom right, var(--color-red-50), white);
}

.platform-card-blue {
  background: linear-gradient(to bottom right, var(--color-blue-50), white);
}

.platform-card-purple {
  background: linear-gradient(to bottom right, var(--color-purple-50), white);
}

.icon-box {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.icon-box-red {
  background: var(--color-red-600);
  color: white;
}

.icon-box-blue {
  background: var(--color-blue-600);
  color: white;
}

.icon-box-gradient {
  background: linear-gradient(to bottom right, var(--color-red-600), var(--color-blue-600));
  color: white;
}

.card-text {
  color: var(--color-gray-600);
  line-height: 1.6;
  font-size: 1rem;
}

@media (min-width: 640px) {
  .card-text {
    font-size: 1.125rem;
  }
}

/* 9. Mission Section
   ============================================ */
.mission {
  padding: 5rem 0;
  background: linear-gradient(to bottom right, var(--color-blue-900), var(--color-red-900), var(--color-blue-900));
  color: white;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .mission-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.mission h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .mission h2 {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .mission h2 {
    font-size: 3rem;
  }
}

.mission-divider {
  width: 6rem;
  height: 0.25rem;
  background: white;
  margin-bottom: 2rem;
}

.mission-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 1rem;
  line-height: 1.6;
}

@media (min-width: 640px) {
  .mission-content {
    font-size: 1.125rem;
  }
}

.mission-content p:last-child {
  font-weight: 600;
  font-size: 1.125rem;
}

@media (min-width: 640px) {
  .mission-content p:last-child {
    font-size: 1.25rem;
  }
}

.mission-image-container {
  position: relative;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .mission-image-container {
    margin-top: 0;
  }
}

.mission-image {
  border-radius: 1rem;
  box-shadow: var(--shadow-2xl);
  width: 100%;
}

.mission-image-blur {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  width: 12rem;
  height: 12rem;
  background: linear-gradient(to bottom right, var(--color-red-600), var(--color-blue-600));
  opacity: 0.2;
  filter: blur(3rem);
  border-radius: 1rem;
}

/* 10. Why Us Section
   ============================================ */
.why-us {
  padding: 5rem 0;
  background: var(--color-gray-50);
}

.why-us-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 64rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .why-us-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

.why-us-card {
  background: white;
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 640px) {
  .why-us-card {
    padding: 2rem;
  }
}

.why-us-card-inner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.why-us-number {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-us-number span {
  font-size: 1.5rem;
  font-weight: 700;
}

.why-us-number-red {
  background: var(--color-red-100);
  color: var(--color-red-600);
}

.why-us-number-blue {
  background: var(--color-blue-100);
  color: var(--color-blue-600);
}

.why-us-number-purple {
  background: var(--color-purple-100);
  color: var(--color-purple-600);
}

.why-us-number-green {
  background: var(--color-green-100);
  color: var(--color-green-600);
}

.why-us-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: 0.75rem;
}

@media (min-width: 640px) {
  .why-us-card h3 {
    font-size: 1.25rem;
  }
}

.why-us-card p {
  color: var(--color-gray-600);
  line-height: 1.6;
  font-size: 0.875rem;
}

@media (min-width: 640px) {
  .why-us-card p {
    font-size: 1rem;
  }
}

/* 11. Donate Section
   ============================================ */
.donate {
  padding: 5rem 0;
  background: white;
}

.donate-section {
  margin-bottom: 3rem;
}

.donate-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  color: var(--color-gray-900);
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .donate-section h3 {
    font-size: 1.5rem;
  }
}

.donate-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  max-width: 64rem;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .donate-grid {
    gap: 1rem;
  }
}

@media (min-width: 768px) {
  .donate-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.donate-card {
  border: 2px solid var(--color-gray-200);
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  cursor: pointer;
  display: block;
}

.donate-card:hover {
  border-color: var(--color-red-600);
  box-shadow: var(--shadow-lg);
}

.donate-card-content {
  padding: 1rem;
  text-align: center;
}

@media (min-width: 640px) {
  .donate-card-content {
    padding: 1.5rem;
  }
}

.donate-icon {
  margin: 0 auto 0.5rem;
}

.donate-amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

@media (min-width: 640px) {
  .donate-amount {
    font-size: 1.875rem;
  }
}

.donate-frequency {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  margin-top: 0.5rem;
}

@media (min-width: 640px) {
  .donate-frequency {
    font-size: 0.875rem;
  }
}

.recurring-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 64rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .recurring-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

.recurring-card {
  border: none;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.recurring-card-blue {
  background: linear-gradient(to bottom right, var(--color-blue-50), white);
}

.recurring-card-red {
  background: linear-gradient(to bottom right, var(--color-red-50), white);
}

.recurring-blur {
  position: absolute;
  top: 0;
  right: 0;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  opacity: 0.1;
  transform: translate(2rem, -2rem);
}

.recurring-blur-blue {
  background: var(--color-blue-600);
}

.recurring-blur-red {
  background: var(--color-red-600);
}

.recurring-badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .recurring-badge {
    font-size: 0.875rem;
  }
}

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

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

.recurring-price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 1rem;
}

.recurring-price-amount {
  font-size: 2.25rem;
  font-weight: 700;
}

.recurring-price-amount-blue {
  color: var(--color-blue-600);
}

.recurring-price-amount-red {
  color: var(--color-red-600);
}

@media (min-width: 640px) {
  .recurring-price-amount {
    font-size: 3rem;
  }
}

.recurring-price-period {
  color: var(--color-gray-500);
}

.recurring-savings {
  font-size: 0.875rem;
  color: var(--color-green-600);
  font-weight: 600;
  margin-top: 0.5rem;
}

.recurring-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.recurring-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.recurring-feature-icon {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.recurring-feature-icon-blue {
  background: var(--color-blue-600);
  color: white;
}

.recurring-feature-icon-red {
  background: var(--color-red-600);
  color: white;
}

.recurring-feature-icon span {
  font-size: 0.75rem;
}

.recurring-feature-text {
  color: var(--color-gray-600);
  font-size: 0.875rem;
}

@media (min-width: 640px) {
  .recurring-feature-text {
    font-size: 1rem;
  }
}

.donate-disclaimer {
  text-align: center;
  color: var(--color-gray-500);
  margin-top: 2rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 0.875rem;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .donate-disclaimer {
    font-size: 1rem;
  }
}

/* 12. Footer
   ============================================ */
.footer {
  background: linear-gradient(to bottom right, var(--color-gray-900), var(--color-blue-900), var(--color-gray-900));
  color: white;
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-text {
  color: var(--color-gray-400);
  line-height: 1.6;
  font-size: 0.875rem;
}

@media (min-width: 640px) {
  .footer-text {
    font-size: 1rem;
  }
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social-link {
  width: 3rem;
  height: 3rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.footer-social-link:hover {
  background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: var(--color-gray-400);
  font-size: 0.875rem;
}

.footer-bottom p {
  margin-top: 0.5rem;
}