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

:root {
    --black: #000000;
    --dark-gray: #111111;
    --gray: #333333;
    --light-gray: #666666;
    --white: #ffffff;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated background gradient */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right, 
        transparent 0%, 
        rgba(255, 255, 255, 0.4) 15%, 
        rgba(255, 255, 255, 0.8) 50%, 
        rgba(255, 255, 255, 0.4) 85%, 
        transparent 100%);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.6),
                0 0 60px rgba(255, 255, 255, 0.4),
                0 0 90px rgba(255, 255, 255, 0.2),
                0 2px 4px rgba(255, 255, 255, 0.3);
    filter: blur(1px);
    pointer-events: none;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--white) 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 120px 40px 80px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, rgba(255, 255, 255, 0.6) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

.hero p {
    font-size: clamp(18px, 2.5vw, 24px);
    color: rgba(255, 255, 255, 0.6);
    max-width: 600px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Features Section */
.features {
    padding: 120px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 64px;
    letter-spacing: -1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: visible;
}

.feature-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
                0 0 0 1px rgba(255, 255, 255, 0.3),
                0 0 30px rgba(255, 255, 255, 0.5),
                0 0 60px rgba(255, 255, 255, 0.3),
                0 0 90px rgba(255, 255, 255, 0.15),
                inset 0 0 30px rgba(255, 255, 255, 0.05);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--white);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    opacity: 0.9;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.6;
}

/* Footer */
footer {
    padding: 60px 40px 40px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right, 
        transparent 0%, 
        rgba(255, 255, 255, 0.4) 15%, 
        rgba(255, 255, 255, 0.8) 50%, 
        rgba(255, 255, 255, 0.4) 85%, 
        transparent 100%);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.6),
                0 0 60px rgba(255, 255, 255, 0.4),
                0 0 90px rgba(255, 255, 255, 0.2),
                0 -2px 4px rgba(255, 255, 255, 0.3);
    filter: blur(1px);
    pointer-events: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 16px 20px;
    }

    .nav-links {
        gap: 20px;
    }

    .nav-links a {
        font-size: 13px;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .features {
        padding: 80px 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}