:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #f472b6;
    --accent-color: #10b981;
    --text-primary: #1e1b4b;
    --text-secondary: #6366f1;
    --text-muted: #64748b;
    --bg-dark: #0f172a;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
}

.navbar { 
    background: rgba(255, 255, 255, 0.95); 
    backdrop-filter: blur(12px); 
    box-shadow: 0 2px 10px rgba(0,0,0,0.06); 
    position: fixed; 
    width: 100%; 
    top: 0; 
    z-index: 1000; 
    transition: all 0.4s ease; 
}

.nav-container { 
    max-width: 1400px; 
    margin: 0 auto; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 0 30px; 
    height: 72px; 
}

.logo { 
    font-size: 22px; 
    font-weight: 800; 
    color: var(--text-primary); 
    text-decoration: none; 
    display: flex; 
    align-items: center; 
    gap: 10px; 
    transition: all 0.3s;
}

.logo:hover { 
    transform: scale(1.02); 
}

.nav-links { 
    display: flex; 
    gap: 35px; 
    list-style: none; 
}

.nav-links a { 
    text-decoration: none; 
    color: var(--text-muted); 
    transition: all 0.3s; 
    font-weight: 500; 
    font-size: 15px; 
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active { 
    color: var(--primary-color); 
}

.nav-links a.active::after {
    width: 100%;
}

.nav-buttons { 
    display: flex; 
    gap: 12px; 
    align-items: center;
}

.nav-buttons .el-button {
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s;
}

.nav-buttons .el-button:hover {
    transform: translateY(-2px);
}

.navbar.scrolled {
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.12);
    background: rgba(255, 255, 255, 0.98);
}

.footer { background: #020617; color: #94a3b8; padding: 80px 20px 40px; }
.footer-content { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 50px; margin-bottom: 60px; }
.footer-brand h3 { font-size: 28px; font-weight: 900; color: #fff; margin-bottom: 20px; }
.footer-brand h3 span { background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #64748b; }
.footer-links h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: #94a3b8; text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom { padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.05); text-align: center; }
.footer-bottom p { font-size: 14px; }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-menu {
    display: none;
    background: #fff;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    padding: 20px;
    border-top: 1px solid var(--border-color);
}
.mobile-menu.active {
    display: block;
}
.mobile-nav-links {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}
.mobile-nav-links li {
    margin-bottom: 12px;
}
.mobile-nav-links a {
    display: block;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}
.mobile-buttons {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .nav-links { 
        display: none; 
    }
    .nav-buttons {
        display: none;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .nav-container {
        padding: 0 15px;
    }
    .logo {
        font-size: 18px;
    }
    .footer-top { grid-template-columns: 1fr; text-align: center; }
}