*{margin:0;padding:0;box-sizing:border-box}:root{--bg:#f8f9fc;--card-bg:rgba(255,255,255,0.75);--text:#1a1a2e;--text2:#4a4a6a;--accent:#f5c518;--accent2:#e0a800;--nav-bg:rgba(255,255,255,0.85);--gradient:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);--glass:rgba(255,255,255,0.2);--shadow:0 8px 32px rgba(0,0,0,0.08);--radius:20px;--transition:0.4s cubic-bezier(0.25,0.46,0.45,0.94)}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}.dark{--bg:#0d0d1a;--card-bg:rgba(30,30,60,0.7);--text:#e8e8f0;--text2:#a0a0c0;--nav-bg:rgba(13,13,26,0.9);--shadow:0 8px 32px rgba(0,0,0,0.4)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:16px;border:none;cursor:pointer;transition:all 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.close-btn{background:none;border:none;color:var(--text);font-size:28px;cursor:pointer;float:right}.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;padding:16px 0;font-size:14px;color:var(--text2)}.breadcrumb a{color:var(--accent);text-decoration:none}.breadcrumb span{color:var(--text2)}.scroll-reveal{opacity:0;transform:translateY(30px);transition:opacity 0.7s ease,transform 0.7s ease}.scroll-reveal.revealed{opacity:1;transform:translateY(0)}@media(max-width:768px){.nav-links{display:none}.nav-toggle{display:flex}.mobile-menu.active{display:flex}.hero h1{font-size:28px}.about-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.section{padding:48px 0}.footer-grid{grid-template-columns:1fr 1fr}.howto-step{flex-direction:column}.back-to-top{bottom:20px;right:20px;width:40px;height:40px;font-size:20px}}@media(max-width:480px){.stats-grid{grid-template-columns:1fr 1fr}.hero-btns{flex-direction:column;align-items:center}.footer-grid{grid-template-columns:1fr}}