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768px){.footer{padding:var(--space-12) 0 var(--space-6)}.footer-content{gap:var(--space-8)}.footer-brand{flex-direction:column;text-align:center}.footer-name{font-size:var(--text-xl)}.footer-social{gap:var(--space-3)}.social-link{width:40px;height:40px}.social-icon{width:18px;height:18px}}.header{position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky);transition:all var(--transition-base)}.header:before{content:"";position:absolute;top:0;left:0;right:0;height:100%;background:linear-gradient(180deg,rgba(15,23,42,.95) 0%,rgba(15,23,42,.8) 70%,transparent 100%);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:0;transition:opacity var(--transition-base)}.header.scrolled:before{opacity:1}.header-container{position:relative;max-width:1400px;margin:0 auto;padding:var(--space-4) var(--space-6);display:flex;justify-content:space-between;align-items:center;z-index:2}.logo{display:flex;align-items:center;gap:var(--space-3);cursor:pointer;transition:transform var(--transition-base)}.logo:hover{transform:scale(1.05)}.logo-cube{width:45px;height:45px;position:relative}.cube-svg{width:100%;height:100%;filter:drop-shadow(0 0 10px rgba(var(--color-primary-rgb),.4))}.cube-lines{fill:none;stroke:var(--color-primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;animation:drawLine 2s ease-out forwards}.cube-svg:hover .cube-lines{stroke:var(--color-primary-light);filter:drop-shadow(0 0 15px rgba(var(--color-primary-rgb),.6))}.logo-text{display:flex;flex-direction:column;gap:2px}.logo-brand{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--color-white);letter-spacing:.5px;line-height:1}.logo-tagline{font-size:var(--text-xs);font-weight:var(--font-normal);color:var(--color-gray-3);letter-spacing:1px;line-height:1}.header-actions{display:flex;align-items:center;gap:var(--space-3)}.action-btn{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);background:rgba(var(--color-primary-rgb),.1);border:1px solid rgba(var(--color-primary-rgb),.3);border-radius:var(--radius-full);color:var(--color-primary-light);text-decoration:none;font-size:var(--text-sm);font-weight:var(--font-medium);transition:all var(--transition-base);position:relative;overflow:hidden}.action-btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;background:rgba(var(--color-primary-rgb),.2);border-radius:50%;transform:translate(-50%,-50%);transition:all var(--transition-base)}.action-btn:hover:before{width:200%;height:200%}.action-btn:hover{background:rgba(var(--color-primary-rgb),.2);border-color:var(--color-primary);transform:translateY(-2px);box-shadow:0 10px 25px rgba(var(--color-primary-rgb),.3)}.btn-icon{width:18px;height:18px;position:relative;z-index:1}.btn-label{position:relative;z-index:1}.menu-toggle{display:flex;flex-direction:column;justify-content:space-around;width:40px;height:40px;padding:var(--space-2);background:rgba(var(--color-primary-rgb),.1);border:1px solid rgba(var(--color-primary-rgb),.3);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base)}.menu-toggle:hover{background:rgba(var(--color-primary-rgb),.2);border-color:var(--color-primary);box-shadow:0 0 20px rgba(var(--color-primary-rgb),.3)}.menu-icon{width:100%;height:2px;background:var(--color-primary-light);border-radius:var(--radius-full);transition:all var(--transition-base)}.nav-menu{position:fixed;top:0;left:0;width:100%;height:100vh;z-index:var(--z-modal);opacity:0;visibility:hidden;transition:all var(--transition-smooth)}.nav-menu.open{opacity:1;visibility:visible}.nav-overlay{position:absolute;width:100%;height:100%;background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.nav-content{position:relative;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-8);z-index:2}.nav-close{position:absolute;top:var(--space-6);right:var(--space-6);width:50px;height:50px;background:transparent;border:2px solid rgba(var(--color-primary-rgb),.3);border-radius:50%;color:var(--color-primary-light);cursor:pointer;transition:all var(--transition-base);display:flex;align-items:center;justify-content:center}.nav-close svg{width:24px;height:24px}.nav-close:hover{background:rgba(var(--color-primary-rgb),.1);border-color:var(--color-primary);transform:rotate(90deg);box-shadow:0 0 25px rgba(var(--color-primary-rgb),.4)}.nav-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6);max-width:1200px;width:100%;animation:fadeInUp var(--transition-smooth) ease-out forwards}.nav-card{background:#1e293b66;border:1px solid rgba(var(--color-primary-rgb),.2);border-radius:var(--radius-2xl);padding:var(--space-8);cursor:pointer;transition:all var(--transition-base);text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent,rgba(var(--color-primary-rgb),.1),transparent);border-radius:var(--radius-2xl);opacity:0;transition:opacity var(--transition-base)}.nav-card:hover:before{opacity:1}.nav-card:hover{background:#1e293b99;border-color:var(--color-primary);transform:translateY(-10px);box-shadow:0 20px 40px rgba(var(--color-primary-rgb),.3)}.nav-card.active{background:rgba(var(--color-primary-rgb),.15);border-color:var(--color-primary);box-shadow:0 0 30px rgba(var(--color-primary-rgb),.4)}.nav-icon{font-size:var(--text-5xl);display:block;margin-bottom:var(--space-4);animation:float 3s ease-in-out infinite}.nav-title{font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--color-white);margin-bottom:var(--space-2);letter-spacing:1px}.nav-description{font-size:var(--text-sm);color:var(--color-gray-3);line-height:1.5}@media (max-width: 768px){.header-container{padding:var(--space-3) var(--space-4)}.logo-brand{font-size:var(--text-lg)}.btn-label{display:none}.action-btn{padding:var(--space-3)}.nav-grid{grid-template-columns:1fr;max-width:400px;gap:var(--space-4)}.nav-card{padding:var(--space-6)}.nav-icon{font-size:var(--text-4xl)}}