:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --dark: #0f172a;
    --gray: #64748b;
    --light: #f8fafc;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--light);
    color: var(--dark);
}

header {
    background: white;
    padding: 20px 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
}

header img { height: 34px; }

nav a {
    text-decoration: none;
    margin-left: 30px;
    color: var(--gray);
    font-size: 14px;
    font-weight: 500;
}

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

.hero {
    padding: 140px 20px;
    text-align: center;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: white;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    max-width: 750px;
    margin: 0 auto 30px;
    color: #cbd5e1;
    font-size: 18px;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 14px 34px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn:hover { background: var(--primary-dark); }

.section {
    padding: 90px 80px;
    max-width: 1200px;
    margin: auto;
}

.section h2 {
    font-size: 32px;
    margin-bottom: 40px;
    text-align: center;
}

.grid {
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: white;
    padding: 35px;
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-6px);
}

footer {
    background: #0f172a;
    color: #94a3b8;
    text-align: center;
    padding: 40px;
    margin-top: 60px;
}

.page-header {
    padding: 100px 20px 60px;
    text-align: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    color: white;
}

.page-header h1 { font-size: 40px; }

.content-text {
    max-width: 900px;
    margin: 40px auto;
    line-height: 1.7;
    font-size: 17px;
}