* { margin: 0; padding: 0; box-sizing: border-box; }
:root { --brand: #1a2f4e; --brand-light: #2b4b7a; --accent: #f0c45a; --glass: rgba(255,255,255,0.08); --radius: 1.25rem; --shadow: 0 12px 30px rgba(0,0,0,0.2); --bg: #f5f7fc; --text: #1f2937; --card-bg: #fff; --accent2: #e8744a; --gradient1: linear-gradient(135deg, #0f1a2e 0%, #1b3150 100%); --gradient2: linear-gradient(135deg, #1a2f4e, #2b4b7a); --gradient3: linear-gradient(135deg, #f0c45a, #e8744a); }
.dark-mode { --bg: #0b1222; --text: #e2e8f0; --card-bg: #182235; --glass: rgba(255,255,255,0.05); --gradient1: linear-gradient(135deg, #070e1a, #14233a); }
body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); transition: background 0.3s, color 0.3s; line-height: 1.6; scroll-behavior: smooth; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; height: auto; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.glass-card { background: var(--glass); backdrop-filter: blur(6px); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,0.08); }
.card { background: var(--card-bg); border-radius: var(--radius); box-shadow: 0 4px 16px rgba(0,0,0,0.05); padding: 1.8rem; transition: transform 0.2s, box-shadow 0.2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0,0,0,0.08); }
.btn { display: inline-block; background: var(--accent); color: #0b1a2e; font-weight: 600; padding: 0.75rem 2rem; border-radius: 2rem; transition: all 0.2s; border: none; cursor: pointer; }
.btn-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn:hover { filter: brightness(1.08); transform: scale(1.02); }
.section-title { font-size: 2rem; font-weight: 700; margin-bottom: 1rem; letter-spacing: -0.02em; position: relative; }
.section-sub { color: #5a6b82; max-width: 700px; margin-bottom: 2.5rem; }
.header { position: sticky; top: 0; z-index: 100; background: rgba(15, 26, 46, 0.85); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,0.06); padding: 0.6rem 0; transition: background 0.3s; }
.header .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.logo svg { height: 40px; width: auto; }
.nav { display: flex; gap: 1.8rem; font-weight: 500; }
.nav a { padding: 0.4rem 0; border-bottom: 2px solid transparent; transition: 0.2s; }
.nav a:hover, .nav a.active { border-bottom-color: var(--accent); color: var(--accent); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 28px; height: 3px; background: #fff; border-radius: 4px; }
.dark-toggle { background: none; border: 1px solid rgba(255,255,255,0.2); border-radius: 30px; padding: 6px 14px; color: #fff; cursor: pointer; font-size: 0.9rem; margin-left: 1rem; }
.hero { padding: 4rem 0 5rem; background: var(--gradient1); color: white; border-radius: 0 0 3rem 3rem; }
.hero .container { display: flex; align-items: center; gap: 3rem; flex-wrap: wrap; }
.hero-content { flex: 1 1 400px; }
.hero-title { font-size: 3rem; font-weight: 800; line-height: 1.2; }
.hero-title span { color: var(--accent); }
.hero-desc { font-size: 1.2rem; opacity: 0.85; margin: 1.5rem 0 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-visual { flex: 1 1 300px; background: var(--glass); border-radius: 2rem; padding: 2rem; text-align: center; backdrop-filter: blur(4px); }
.section { padding: 4rem 0; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.8rem; }
.flex-center { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; }
.badge { background: var(--accent); color: #0b1a2e; border-radius: 30px; padding: 0.2rem 1rem; font-weight: 500; font-size: 0.85rem; display: inline-block; }
.footer { background: #0f1a2e; color: #b0c0d0; padding: 3rem 0 1.5rem; margin-top: 4rem; }
.footer a { color: #b0c0d0; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 2rem; }
.copyright { border-top: 1px solid #2a3a55; padding-top: 1.5rem; margin-top: 2rem; text-align: center; font-size: 0.9rem; }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.carousel { overflow: hidden; position: relative; }
.carousel-track { display: flex; transition: transform 0.5s; }
.carousel-item { min-width: 100%; padding: 0.5rem; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.4); color: #fff; border: none; font-size: 2rem; padding: 0 0.8rem; border-radius: 40px; cursor: pointer; z-index: 5; }
.carousel-btn.prev { left: 0.5rem; }
.carousel-btn.next { right: 0.5rem; }
.faq-item { border-bottom: 1px solid rgba(255,255,255,0.08); padding: 1rem 0; cursor: pointer; }
.faq-question { font-weight: 600; display: flex; justify-content: space-between; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s; opacity: 0.8; }
.faq-item.open .faq-answer { max-height: 300px; margin-top: 0.6rem; }
.stat-number { font-size: 2.2rem; font-weight: 700; color: var(--accent); }
#backToTop { position: fixed; bottom: 2rem; right: 2rem; background: var(--accent); border: none; border-radius: 50%; width: 50px; height: 50px; font-size: 1.8rem; cursor: pointer; display: none; z-index: 99; transition: transform 0.2s; }
#backToTop:hover { transform: scale(1.1); }
@media (max-width: 800px) {
  .nav { display: none; flex-direction: column; width: 100%; background: #11203a; padding: 1rem; border-radius: 1rem; margin-top: 0.8rem; }
  .nav.open { display: flex; }
  .menu-toggle { display: flex; }
  .hero-title { font-size: 2.3rem; }
}
@media (max-width: 640px) {
  .container { padding: 0 1rem; }
  .section-title { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .hero-actions .btn { padding: 0.6rem 1.2rem; font-size: 0.9rem; }
  .hero-visual { padding: 1.2rem; }
  .card { padding: 1.2rem; }
}