:root {
    --primary: #0052FF; /* Professional Tech Blue */
    --dark: #111827;
    --light: #F9FAFB;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background: white;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -1px;
}

.logo span { color: var(--primary); font-weight: 300; }

ul { list-style: none; display: flex; gap: 30px; }
a { text-decoration: none; color: var(--dark); font-weight: 500; }

.hero {
    text-align: center;
    padding: 100px 5%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 50px 5%;
}

.card {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-top: 4px solid var(--primary);
}

footer { text-align: center; padding: 40px; font-size: 14px; color: #666; }