* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2563eb;
  --text-dark: #1a1a1a;
  --text-medium: #666;
  --text-light: #999;
  --border-color: #e5e5e5;
  --bg-light: #fafafa;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.7;
  color: var(--text-dark);
  background: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  font-size: 20px;
}

nav {
  display: flex;
  gap: 30px;
}

nav a {
  color: var(--text-medium);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--primary-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-dark);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
  background: var(--primary-color);
  color: #fff;
  padding: 140px 20px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><linearGradient id="line" x1="0%" y1="0%" x2="100%" y2="0%"><stop offset="0%" style="stop-color:white;stop-opacity:0"/><stop offset="50%" style="stop-color:white;stop-opacity:0.15"/><stop offset="100%" style="stop-color:white;stop-opacity:0"/></linearGradient></defs><g opacity="0.4"><line x1="0" y1="300" x2="200" y2="280" stroke="url(%23line)" stroke-width="2"/><line x1="200" y1="280" x2="400" y2="320" stroke="url(%23line)" stroke-width="2"/><line x1="400" y1="320" x2="600" y2="290" stroke="url(%23line)" stroke-width="2"/><line x1="600" y1="290" x2="800" y2="310" stroke="url(%23line)" stroke-width="2"/><line x1="800" y1="310" x2="1000" y2="285" stroke="url(%23line)" stroke-width="2"/><line x1="1000" y1="285" x2="1200" y2="300" stroke="url(%23line)" stroke-width="2"/><circle cx="200" cy="280" r="6" fill="white" opacity="0.3"/><circle cx="400" cy="320" r="6" fill="white" opacity="0.3"/><circle cx="600" cy="290" r="6" fill="white" opacity="0.3"/><circle cx="800" cy="310" r="6" fill="white" opacity="0.3"/><circle cx="1000" cy="285" r="6" fill="white" opacity="0.3"/><line x1="150" y1="200" x2="150" y2="280" stroke="white" stroke-width="1.5" opacity="0.2"/><line x1="145" y1="200" x2="155" y2="200" stroke="white" stroke-width="8" opacity="0.2"/><line x1="450" y1="220" x2="450" y2="320" stroke="white" stroke-width="1.5" opacity="0.2"/><line x1="445" y1="220" x2="455" y2="220" stroke="white" stroke-width="8" opacity="0.2"/><line x1="750" y1="210" x2="750" y2="310" stroke="white" stroke-width="1.5" opacity="0.2"/><line x1="745" y1="210" x2="755" y2="210" stroke="white" stroke-width="8" opacity="0.2"/><line x1="1050" y1="185" x2="1050" y2="285" stroke="white" stroke-width="1.5" opacity="0.2"/><line x1="1045" y1="185" x2="1055" y2="185" stroke="white" stroke-width="8" opacity="0.2"/><path d="M 150 195 L 145 185 L 155 185 Z" fill="white" opacity="0.15"/><path d="M 450 215 L 445 205 L 455 205 Z" fill="white" opacity="0.15"/><path d="M 750 205 L 745 195 L 755 195 Z" fill="white" opacity="0.15"/><path d="M 1050 180 L 1045 170 L 1055 170 Z" fill="white" opacity="0.15"/></g></svg>');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.8;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 13px;
  margin-bottom: 24px;
  font-weight: 500;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 12px;
  font-weight: 700;
}

.hero h2 {
  font-size: 22px;
  font-weight: 400;
  margin-bottom: 20px;
  opacity: 0.95;
}

.hero-description {
  font-size: 17px;
  max-width: 720px;
  margin: 0 auto 35px;
  line-height: 1.6;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 60px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 15px;
}

.btn-primary {
  background: #fff;
  color: var(--primary-color);
}

.btn-primary:hover {
  background: #f8f8f8;
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.6);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  opacity: 0.85;
}

/* Sections */
.section {
  padding: 80px 20px;
}

.section-gray {
  background: var(--bg-light);
}

.section-title {
  font-size: 32px;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text-dark);
  font-weight: 600;
}

.section-subtitle {
  text-align: center;
  color: var(--text-medium);
  max-width: 680px;
  margin: 0 auto 20px;
  font-size: 16px;
}

.divider {
  width: 50px;
  height: 2px;
  background: var(--primary-color);
  margin: 0 auto 40px;
}

.content-block {
  max-width: 800px;
  margin: 0 auto 40px;
}

.content-block p {
  margin-bottom: 18px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dark);
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card {
  text-align: center;
  padding: 28px 20px;
  background: #fff;
  border: 1px solid var(--border-color);
}

.feature-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text-dark);
  font-weight: 600;
}

.feature-card p {
  color: var(--text-medium);
  font-size: 15px;
}

/* Targets Grid */
.targets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.target-card {
  background: #fff;
  padding: 26px;
  border: 1px solid var(--border-color);
}

.target-number {
  display: inline-block;
  width: 32px;
  height: 32px;
  background: var(--primary-color);
  color: #fff;
  text-align: center;
  line-height: 32px;
  font-weight: 600;
  margin-bottom: 14px;
  font-size: 14px;
}

.target-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--text-dark);
  font-weight: 600;
  line-height: 1.4;
}

.target-card p {
  color: var(--text-medium);
  font-size: 15px;
  line-height: 1.6;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.column p {
  margin-bottom: 18px;
  font-size: 16px;
  line-height: 1.7;
}

.objective-box {
  background: var(--primary-color);
  color: #fff;
  padding: 18px;
  margin-bottom: 12px;
  font-size: 18px;
  font-weight: 600;
  text-align: center;
}

/* Areas Grid */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.area-item {
  background: #fff;
  padding: 22px;
  border: 1px solid var(--border-color);
}

.area-item strong {
  display: block;
  color: var(--text-dark);
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 600;
}

.area-item p {
  color: var(--text-medium);
  font-size: 15px;
  line-height: 1.6;
}

/* Participation Stats */
.participation-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.participation-card {
  background: #fff;
  padding: 26px;
  border: 1px solid var(--border-color);
  text-align: center;
}

.participation-card h3 {
  color: var(--primary-color);
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.participation-card p {
  color: var(--text-medium);
  font-size: 15px;
}

/* Resources List */
.resources-list {
  max-width: 800px;
  margin: 0 auto;
}

.resource-item {
  background: #fff;
  padding: 22px;
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--primary-color);
}

.resource-item h4 {
  color: var(--text-dark);
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 600;
}

.resource-item p {
  color: var(--text-medium);
  font-size: 15px;
}

/* Acquisition Section */
.section-accent {
  background: var(--primary-color);
  color: #fff;
}

.section-accent .section-title {
  color: #fff;
}

.acquisition-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  font-size: 13px;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
}

.acquisition-subtitle {
  font-size: 17px;
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.use-cases {
  background: rgba(255, 255, 255, 0.1);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  margin: 40px auto;
  max-width: 750px;
}

.use-cases h3 {
  text-align: center;
  margin-bottom: 18px;
  font-size: 20px;
  font-weight: 600;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.use-case {
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.acquisition-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 30px 0;
}

.btn-light {
  background: #fff;
  color: var(--primary-color);
}

.btn-light:hover {
  background: #f8f8f8;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.6);
}

.acquisition-note {
  text-align: center;
  font-size: 14px;
  opacity: 0.85;
}

/* Footer */
footer {
  background: #1a1a1a;
  color: #fff;
  padding: 20px 20px;
}

.disclaimer {
  border-left: 3px solid #ffc107;
  padding: 18px;
  /* margin-bottom: 10px; */
  font-size: 14px;
}

.disclaimer strong {
  color: #ffc107;
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-content p {
  color: var(--text-light);
  margin-bottom: 18px;
  font-size: 15px;
}

.footer-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
  color: var(--text-light);
  font-size: 14px;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  nav {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, box-shadow 0.3s ease;
    box-shadow: none;
    border-bottom: none;
  }

  nav.active {
    max-height: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border-color);
  }

  nav a {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    font-size: 16px;
  }

  nav a:last-child {
    border-bottom: none;
  }

  nav a:hover {
    background: var(--bg-light);
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero h2 {
    font-size: 19px;
  }

  .section-title {
    font-size: 26px;
  }

  .hero-buttons,
  .acquisition-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 120px 15px 60px;
  }

  .section {
    padding: 60px 15px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .section-title {
    font-size: 24px;
  }

  .stats {
    grid-template-columns: 1fr;
  }
}