:root {
    --bg-color: #0a0a0f;
    --surface-color: #1a1a24;
    --accent-blue: #00f2ff;
    --accent-violet: #8a2be2;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --gradient-primary: linear-gradient(135deg, #00f2ff 0%, #8a2be2 100%);
    --card-bg: rgba(26, 26, 36, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
    border: none;
    display: inline-block;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
}

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

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
    line-height: 1.1;
}

.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-bg {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-blob {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 242, 255, 0.1) 0%, rgba(138, 43, 226, 0.1) 100%);
    filter: blur(100px);
    border-radius: 50%;
}

/* Features Cards */
.features {
    padding: 80px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 24px;
    transition: transform 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 242, 255, 0.3);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--surface-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent-blue);
    font-size: 24px;
}

.card h3 {
    margin-bottom: 16px;
    font-size: 22px;
}

.card p {
    color: var(--text-secondary);
}

/* How it Works */
.how-it-works {
    padding: 100px 0;
    text-align: center;
}

.how-it-works h2 {
    font-size: 40px;
    margin-bottom: 60px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.step {
    position: relative;
}

.step-number {
    font-size: 48px;
    font-weight: 800;
    opacity: 0.1;
    margin-bottom: -20px;
    display: block;
}

.step h4 {
    font-size: 24px;
    margin-bottom: 12px;
}

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    margin-top: 100px;
    text-align: center;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
}

.footer-links a:hover {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 40px;
    }
    .nav-links {
        display: none;
    }
}