:root {
  --primary: #1a2a6c;
  --secondary: #b21f1f;
  --accent: #f0c040;
  --bg: #f5f7fa;
  --glass: rgba(255,255,255,0.7);
  --shadow: 0 8px 32px rgba(0,0,0,0.1);
  --radius: 20px;
  --text: #1a1a2e;
  --text-light: #555;
  --gradient: linear-gradient(135deg, #1a2a6c, #b21f1f, #f0c040);
  --card-bg: rgba(255,255,255,0.6);
  --border: rgba(255,255,255,0.3);
}
[data-theme="dark"] {
  --bg: #0d0d1a;
  --text: #e0e0e0;
  --text-light: #aaa;
  --card-bg: rgba(30,30,50,0.7);
  --glass: rgba(20,20,40,0.8);
  --shadow: 0 8px 32px rgba(0,0,0,0.5);
  --border: rgba(255,255,255,0.1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}
a { color: var(--primary); text-decoration: none; }
img, svg { max-width: 100%; height: auto; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--glass); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
header.scrolled { box-shadow: var(--shadow); }
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; max-width: 1280px; margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 800; color: var(--primary); }
.logo svg { height: 40px; }
.nav-links { display: flex; gap: 24px; list-style: none; }
.nav-links a { font-weight: 500; padding: 8px 12px; border-radius: 8px; transition: background 0.2s; }
.nav-links a:hover, .nav-links a.active { background: var(--accent); color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.search-input { padding: 8px 16px; border: 1px solid var(--border); border-radius: 30px; background: var(--card-bg); color: var(--text); outline: none; width: 180px; transition: width 0.3s; }
.search-input:focus { width: 240px; border-color: var(--accent); }
.dark-toggle { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text); padding: 4px; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 28px; cursor: pointer; color: var(--text); }
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--glass); backdrop-filter: blur(20px); padding: 20px; gap: 12px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .search-input { width: 120px; }
  .search-input:focus { width: 160px; }
  .mobile-menu-btn { display: block; }
}
.banner {
  margin-top: 70px; position: relative; overflow: hidden;
  height: 70vh; min-height: 400px; display: flex; align-items: center; justify-content: center;
  background: var(--gradient);
}
.banner-slide { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.8s ease; }
.banner-slide.active { opacity: 1; }
.banner-content { text-align: center; color: white; padding: 40px; max-width: 800px; }
.banner-content h1 { font-size: 3.5rem; font-weight: 800; margin-bottom: 16px; text-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.banner-content p { font-size: 1.3rem; margin-bottom: 24px; opacity: 0.9; }
.banner-btn { display: inline-block; padding: 14px 40px; background: var(--accent); color: var(--primary); border-radius: 50px; font-weight: 700; font-size: 1.1rem; transition: transform 0.3s, box-shadow 0.3s; }
.banner-btn:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0,0,0,0.3); }
.banner-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; }
.dot { width: 14px; height: 14px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: background 0.3s, transform 0.3s; }
.dot.active { background: white; transform: scale(1.3); }
@media (max-width: 768px) {
  .banner { height: 50vh; min-height: 300px; }
  .banner-content h1 { font-size: 2rem; }
  .banner-content p { font-size: 1rem; }
}
section { padding: 80px 0; }
.section-title { font-size: 2.5rem; font-weight: 700; text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--text-light); margin-bottom: 48px; font-size: 1.1rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.card {
  background: var(--card-bg); backdrop-filter: blur(10px);
  border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: transform 0.3s, box-shadow 0.3s;
  opacity: 0; transform: translateY(40px);
}
.card.visible { opacity: 1; transform: translateY(0); }
.card:hover { transform: translateY(-8px); box-shadow: 0 16px 48px rgba(0,0,0,0.15); }
.card-icon { width: 60px; height: 60px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; font-size: 28px; }
.card h3 { font-size: 1.4rem; margin-bottom: 12px; }
.card p { color: var(--text-light); }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text p { margin-bottom: 16px; font-size: 1.05rem; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; text-align: center; }
.stat { background: var(--card-bg); border-radius: var(--radius); padding: 30px 20px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.stat-number { font-size: 2.8rem; font-weight: 800; color: var(--secondary); }
.stat-label { color: var(--text-light); margin-top: 8px; }
@media (max-width: 768px) {
  .about-content { grid-template-columns: 1fr; gap: 30px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: 1.8rem; }
}
.timeline { position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 16px; top: 0; bottom: 0; width: 4px; background: var(--gradient); border-radius: 4px; }
.timeline-item { position: relative; margin-bottom: 40px; padding-left: 30px; opacity: 0; transform: translateX(-20px); transition: opacity 0.6s, transform 0.6s; }
.timeline-item.visible { opacity: 1; transform: translateX(0); }
.timeline-item::before { content: ''; position: absolute; left: -24px; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 3px solid var(--primary); }
.timeline-year { font-weight: 700; color: var(--secondary); font-size: 1.2rem; }
.timeline-text { color: var(--text-light); margin-top: 4px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; }
.team-card { text-align: center; background: var(--card-bg); border-radius: var(--radius); padding: 30px 20px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform 0.3s; }
.team-card:hover { transform: translateY(-6px); }
.team-avatar { width: 100px; height: 100px; border-radius: 50%; margin: 0 auto 16px; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-size: 40px; color: white; }
.team-name { font-weight: 700; font-size: 1.2rem; }
.team-role { color: var(--text-light); margin-top: 4px; }
.partner-logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 40px; align-items: center; padding: 20px; }
.partner-logo { width: 120px; height: 60px; background: var(--card-bg); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--text-light); border: 1px solid var(--border); padding: 8px; font-size: 14px; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.testimonial { background: var(--card-bg); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); border: 1px solid var(--border); position: relative; }
.testimonial::before { content: '"'; font-size: 4rem; position: absolute; top: 10px; left: 20px; color: var(--accent); opacity: 0.3; }
.testimonial p { font-style: italic; margin-bottom: 16px; }
.testimonial-author { font-weight: 700; color: var(--primary); }
.faq-item { background: var(--card-bg); border-radius: var(--radius); margin-bottom: 16px; box-shadow: var(--shadow); border: 1px solid var(--border); overflow: hidden; }
.faq-question { padding: 20px 24px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background 0.2s; }
.faq-question:hover { background: rgba(0,0,0,0.03); }
.faq-question .icon { transition: transform 0.3s; font-size: 20px; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s; padding: 0 24px; color: var(--text-light); }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
.article-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.article-card { background: var(--card-bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform 0.3s; }
.article-card:hover { transform: translateY(-6px); }
.article-date { color: var(--text-light); font-size: 0.9rem; margin-bottom: 8px; }
.article-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.article-summary { color: var(--text-light); margin-bottom: 16px; }
.read-more { color: var(--secondary); font-weight: 600; cursor: pointer; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info p { margin-bottom: 12px; display: flex; align-items: center; gap: 12px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 14px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--card-bg); color: var(--text); margin-bottom: 16px; outline: none; transition: border 0.2s; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }
.contact-form button { padding: 14px 40px; background: var(--primary); color: white; border: none; border-radius: 50px; font-weight: 700; cursor: pointer; transition: background 0.3s, transform 0.2s; }
.contact-form button:hover { background: var(--secondary); transform: translateY(-2px); }
.map-placeholder { background: var(--card-bg); border-radius: var(--radius); height: 300px; display: flex; align-items: center; justify-content: center; color: var(--text-light); border: 1px solid var(--border); }
footer { background: var(--primary); color: white; padding: 60px 0 30px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; }
.footer-col h4 { font-size: 1.2rem; margin-bottom: 20px; color: var(--accent); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.8); transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.2); margin-top: 40px; padding-top: 20px; text-align: center; font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.back-to-top { position: fixed; bottom: 40px; right: 40px; width: 50px; height: 50px; border-radius: 50%; background: var(--primary); color: white; border: none; font-size: 24px; cursor: pointer; box-shadow: var(--shadow); opacity: 0; transition: opacity 0.3s, transform 0.3s; z-index: 999; }
.back-to-top.visible { opacity: 1; }
.back-to-top:hover { transform: scale(1.1); }
.howto-steps { counter-reset: step; }
.howto-step { background: var(--card-bg); border-radius: var(--radius); padding: 24px 30px; margin-bottom: 16px; box-shadow: var(--shadow); border: 1px solid var(--border); position: relative; padding-left: 70px; }
.howto-step::before { counter-increment: step; content: counter(step); position: absolute; left: 20px; top: 20px; width: 36px; height: 36px; border-radius: 50%; background: var(--gradient); color: white; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.howto-step h4 { margin-bottom: 8px; }
.breadcrumb { padding: 16px 0; font-size: 0.9rem; color: var(--text-light); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-light); }
.breadcrumb span { color: var(--text); }
.newsletter { background: var(--gradient); padding: 60px 20px; text-align: center; color: white; border-radius: var(--radius); margin: 40px 0; }
.newsletter h2 { font-size: 2rem; margin-bottom: 16px; }
.newsletter p { margin-bottom: 24px; opacity: 0.9; }
.newsletter input { padding: 14px 24px; border: none; border-radius: 50px; width: 300px; max-width: 80%; margin-right: 12px; outline: none; }
.newsletter button { padding: 14px 32px; background: var(--accent); color: var(--primary); border: none; border-radius: 50px; font-weight: 700; cursor: pointer; }
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .newsletter input { width: 100%; margin-bottom: 12px; margin-right: 0; }
  .newsletter button { width: 100%; }
}