:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --primary-color: #00aaff;
    --secondary-color: #1a1a1a;
    --border-color: #2a2a2a;
    --accent-success: #00ff88;
    --accent-warning: #ffaa00;
    --accent-danger: #ff4444;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;700&family=Orbitron:wght@700&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 30px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

p {
    margin-bottom: 15px;
}

em {
    font-style: italic;
}

strong {
    font-weight: 600;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #00ddff;
}

/* Buttons */
.btn, .cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 40px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-size: 1rem;
}

.btn:hover, .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 170, 255, 0.3);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 170, 255, 0.2);
}

/* Sections */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-family: 'Orbitron', sans-serif;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #a0a0a0;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Cards */
.card {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 30px;
    transition: border-color 0.3s ease;
}

.card:hover {
    border-color: var(--primary-color);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* Utilities */
.text-center {
    text-align: center;
}

.text-muted {
    color: #a0a0a0;
}

.mt-40 {
    margin-top: 40px;
}

.mb-40 {
    margin-bottom: 40px;
}

.py-100 {
    padding: 100px 0;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    section {
        padding: 60px 0;
    }

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

    .grid-2 {
        grid-template-columns: 1fr;
    }
}