:root {
    --primary-color: #0D47A1;
    --accent-color: #2E7D32; /* Hijau Kesehatan */
    --light-bg: #F8F9FA;
    --dark-text: #212121;
    --transition-speed: 0.3s;
}

/* Dark Mode Variables */
[data-theme='dark'] {
    --light-bg: #121212;
    --dark-text: #f1f1f1;
    background-color: #121212;
    color: #f1f1f1;
}

[data-theme='dark'] .bg-white, [data-theme='dark'] .card {
    background-color: #1e1e1e !important;
    color: #fff !important;
}

[data-theme='dark'] .text-muted {
    color: #bbb !important;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark-text);
    overflow-x: hidden;
}

.logo-box {
    background: var(--primary-color);
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: bold;
}

/* Navigation */
header {
    transition: var(--transition-speed);
}

.nav-link {
    color: var(--dark-text);
    margin: 0 10px;
}

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

/* Hero Section */
.hero-section {
    min-height: 100vh;
    padding-top: 100px;
    background: linear-gradient(135deg, #fff 50%, #e3f2fd 100%);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
}

.btn-success {
    background-color: var(--accent-color);
    border: none;
}

/* Prodi Card */
.prodi-card {
    transition: transform var(--transition-speed);
}

.prodi-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1) !important;
}

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    z-index: 1000;
    text-decoration: none;
}

/* Responsive Fixes */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding-bottom: 50px;
    }
}