:root {
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: #1e293b;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

/* Header */
header {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding-top: 80px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 40%),
        radial-gradient(circle at bottom left, rgba(139, 92, 246, 0.15), transparent 40%);
}

.hero-content {
    max-width: 800px;
    z-index: 10;
}

.hero h1 {
    margin-bottom: 1.5rem;
    font-size: 4rem;
    letter-spacing: -0.02em;
}

.hero h1 span {
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-desc {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 3rem;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #111827;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header p {
    color: #94a3b8;
    margin-top: 10px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
}

.feature-card p {
    color: #94a3b8;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-color) 0%, #1e1b4b 100%);
}

.qr-container {
    background: white;
    padding: 20px;
    border-radius: 20px;
    display: inline-block;
    margin-top: 40px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.qr-container img {
    max-width: 250px;
    display: block;
}

.contact-text {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.2rem;
    color: #cbd5e1;
}

/* Footer */
footer {
    padding: 40px 0;
    background: #020617;
    text-align: center;
    color: #64748b;
    border-top: 1px solid var(--glass-border);
}

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

    .hero h1 {
        font-size: 2.8rem;
    }

    .nav-links {
        display: none;
    }

    .logo {
        font-size: 1.5rem;
    }
}