:root {
    /* Colors */
    --bg-color: #0a0a0a;
    --card-bg: #141414;
    --text-primary: #ffffff;
    --text-secondary: #a1a1a1;
    --accent: #ffffff;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(20, 20, 20, 0.7);

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing */
    --section-padding: 180px 40px;
    --container-max-width: 1200px;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography Utilities */
.text-secondary {
    color: var(--text-secondary);
}

.uppercase {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
}

/* Section Layout */
section {
    padding: var(--section-padding);
}

/* Premium Components */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
}

.button {
    display: inline-block;
    padding: 12px 32px;
    border: 1px solid var(--text-primary);
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.button:hover {
    background: var(--text-primary);
    color: var(--bg-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Grid System */
.grid {
    display: grid;
    gap: 30px;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Bottom Navigation (Floating) */
.bottom-nav {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 30px;
    border-radius: 40px;
    z-index: 1000;
    display: flex;
    gap: 20px;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 0.65rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

.nav-item.active,
.nav-item:hover {
    color: var(--text-primary);
    opacity: 1;
}

.nav-icon {
    width: 20px;
    height: 20px;
}