/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
body {
    color: #1f2937;
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #ffffff;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* WebGL Background Canvas */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at center, #111827 0%, #030712 100%);
}

/* Navigation Header */
header {
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}
.logo {
    font-weight: bold;
    font-size: 24px;
    color: #3b82f6;
    letter-spacing: 1px;
}
.nav-links {
    display: flex;
    list-style: none;
}
.nav-links li {
    margin-left: 30px;
}
.nav-links a {
    text-decoration: none;
    color: #9ca3af;
    font-weight: 500;
    transition: color 0.3s;
}
.nav-links a:hover {
    color: #3b82f6;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    padding-top: 70px;
}
.hero-content h1 {
    font-size: 56px;
    margin-bottom: 20px;
    font-weight: 800;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-content p {
    font-size: 20px;
    margin-bottom: 35px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    color: #d1d5db;
}
.btn {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 14px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-size: 16px;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: white;
}
.section-title {
    text-align: center;
    font-size: 38px;
    margin-bottom: 60px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.cards {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}
.card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px 30px;
    border-radius: 16px;
    flex: 1;
    text-align: center;
    transition: transform 0.3s, background 0.3s;
}
.card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(59, 130, 246, 0.5);
}
.card h3 {
    margin-bottom: 15px;
    color: #3b82f6;
    font-size: 22px;
}
.card p {
    color: #9ca3af;
}

/* Contact Form Section */
.contact {
    padding: 100px 0;
    color: white;
}
.contact-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: rgba(17, 24, 39, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.contact-form input {
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    font-size: 16px;
    color: white;
    transition: border-color 0.3s, background 0.3s;
}
.contact-form input:focus {
    outline: none;
    border-color: #3b82f6;
    background: rgba(255, 255, 255, 0.08);
}
.contact-form input::placeholder {
    color: #6b7280;
}

/* Footer */
footer {
    background: #030712;
    color: #6b7280;
    text-align: center;
    padding: 40px 0;
    font-size: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-content h1 {
        font-size: 38px;
    }
    .cards {
        flex-direction: column;
    }
    .contact-form {
        padding: 30px 20px;
    }
}