/* --- Base Variables & Reset --- */
:root {
    --primary-blue: #0056D2;
    --dark-text: #1A1A1A;
    --light-text: #666666;
    --bg-color: #F8F9FA;
    --card-bg: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--dark-text);
    line-height: 1.6;
}

/* --- Typography & Buttons --- */
h1, h2, h3 { color: var(--dark-text); }

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-primary:hover { background-color: #0043A8; }

.btn-secondary {
    background-color: white;
    color: var(--primary-blue);
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--primary-blue);
}

/* --- Navigation --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 24px;
    font-weight: 800;
}

.logo span { color: var(--primary-blue); }

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

.nav-links a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 600;
}

/* --- Hero Section --- */
.hero {
    padding: 100px 5%;
    display: flex;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #ffffff 0%, #e6f0ff 100%);
}

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

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    color: var(--light-text);
    margin-bottom: 40px;
}

.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* --- Products Section --- */
.products-section {
    padding: 80px 5%;
    text-align: center;
}

.section-title {
    font-size: 36px;
    margin-bottom: 10px;
}

.section-subtitle {
    color: var(--light-text);
    margin-bottom: 50px;
    font-size: 18px;
}

.product-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.product-card {
    background: var(--card-bg);
    width: 300px;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: left;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 86, 210, 0.15); 
    border-bottom: 3px solid var(--primary-blue);
}

.card-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.product-card p {
    color: var(--light-text);
    font-size: 15px;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 36px; }
    .hero p { font-size: 18px; }
    .button-group { flex-direction: column; }
}