:root {
    --primary-orange: #FFA726;
    --primary-purple: #6B7FF2;
    --text-color: #4A4A4A;
    --bg-color: #FFFFFF;
    --bg-light: #F8F9FA;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --border-radius: 6px;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.contact-link {
    background-color: var(--primary-orange);
    color: white;
    text-decoration: none;
    padding: 0.5rem 1.2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.contact-link:hover {
    background-color: var(--primary-purple);
}

.main-content {
    max-width: 1200px;
    margin: 100px auto 0;
    padding: 0 var(--spacing-md);
}

section {
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 1.8rem;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.intro-text {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    font-size: 1.1rem;
    text-align: justify;
}

.portal-grid,
.package-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.portal-card,
.package-card {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.portal-card:hover,
.package-card:hover {
    transform: translateY(-5px);
}

@media screen and (max-width: 768px) {
    .main-content {
        margin-top: 80px;
        padding: 0 var(--spacing-sm);
    }

    .nav-container {
        padding: var(--spacing-sm);
    }

    .logo {
        height: 40px;
    }

    h2 {
        font-size: 1.6rem;
    }

    .intro-text {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }

    .portal-grid,
    .package-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

@media screen and (max-width: 480px) {
    .logo {
        height: 35px;
    }

    .contact-link {
        padding: 0.4rem 1rem;
        font-size: 0.9rem;
    }

    .portal-card,
    .package-card {
        padding: var(--spacing-sm);
    }
}