:root {
    --bs-primary-rgb: 74, 144, 226; /* for Bootstrap components */
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --bg-color: #F4F7F9;
    --surface-color: #FFFFFF;
    --text-color: #333333;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.navbar {
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
}

.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
    transition: transform .2s ease-in-out, box-shadow .2s ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,.12);
}

.card-img-top {
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
}

.footer {
    background-color: var(--surface-color);
}

.hero {
    background: linear-gradient(135deg, #4A90E2 0%, #81C784 100%);
    padding: 4rem 0;
    color: white;
}