:root {
    /* Color Palette */
    --primary-bg: #0a0e14;
    --secondary-bg: #151b23;
    --accent-blue: #007aff;
    --accent-electric: #00d2ff;
    --accent-navy: #1a237e;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Base Layout Utility */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.grid { display: grid; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-electric));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 122, 255, 0.3);
}

.btn-outline {
    border: 2px solid var(--accent-blue);
    background: transparent;
    color: var(--accent-blue);
}

.btn-outline:hover {
    background: var(--accent-blue);
    color: white;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Responsive Navigation Placeholder */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) 0;
    background: rgba(10, 14, 20, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

.logo img {
    height: 40px;
}

/* Navigation & Dropdowns */
.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--secondary-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    box-shadow: var(--card-shadow);
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    transition: var(--transition-smooth);
    color: var(--text-secondary);
}

.dropdown-item:hover {
    background: var(--glass-bg);
    color: var(--accent-electric);
}

.dropdown-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.dropdown-item-content h5 {
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.dropdown-item-content p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Icons */
.icon {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

/* Mobile Adjustments for Dropdown */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding-left: 1.5rem;
        display: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
}

/* Footer Section */
footer {
    background: var(--secondary-bg);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    margin-bottom: var(--spacing-md);
    color: var(--accent-electric);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Mobile Navigation toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-bg);
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-cta {
        display: none;
    }

    .section { padding: var(--spacing-lg) 0; }
}