.biaya-section {
    padding: 40px 20px;
    background: #f9fafb;
}

.biaya-section h1 {
    text-align: center;
    color: #1e3a8a;
    margin-bottom: 10px;
    font-size: 2.5em;
}

.biaya-section .intro-text {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 1.1em;
}

.biaya-container {
    max-width: 1100px;
    margin: 0 auto;
}

.biaya-section h2 {
    color: #1e3a8a;
    margin-bottom: 25px;
    font-size: 1.8em;
    text-align: center;
}

/* Program Info */
.program-info {
    background: white;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.info-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.info-item h3 {
    color: #2d5a8c;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.info-item ul {
    list-style: none;
    padding: 0;
}

.info-item ul li {
    color: #555;
    padding: 8px 0;
    line-height: 1.5;
}

/* Biaya Detail */
.biaya-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.biaya-detail > h2 {
    grid-column: 1 / -1;
}

.biaya-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    position: relative;
}

.biaya-card:hover {
    transform: translateY(-5px);
}

.biaya-card h3 {
    color: #1e3a8a;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.biaya-card .price {
    font-size: 2em;
    font-weight: bold;
    color: #2d5a8c;
    margin: 10px 0;
}

.biaya-card .description {
    color: #666;
    font-size: 0.9em;
    margin-top: 10px;
}

.highlight-yellow {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #fcd34d;
}

.highlight-green {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border: 2px solid #6ee7b7;
}

.badge-free {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #ef4444;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.85em;
}

/* SPP Section */
.biaya-spp {
    margin-bottom: 40px;
}

.spp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.spp-card {
    background: white;
    border-radius: 15px;
    padding: 35px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #3b82f6;
    transition: all 0.3s ease;
}

.spp-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.spp-card h3 {
    color: #1e3a8a;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.spp-card .price {
    font-size: 2.2em;
    font-weight: bold;
    color: #2d5a8c;
    margin: 15px 0;
}

.spp-card .period {
    color: #888;
    font-size: 0.95em;
}

.spp-card .description {
    color: #666;
    margin-top: 12px;
    font-size: 0.9em;
}

/* Promo Section */
.promo-section {
    margin-bottom: 40px;
}

.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.promo-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 3px solid #e5e7eb;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.promo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
    pointer-events: none;
}

.promo-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.promo-card.red {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-color: #f87171;
    border-width: 4px;
}

.promo-card.red::after {
    content: '🎁';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 2em;
    opacity: 0.3;
}

.promo-card.yellow {
    background: linear-gradient(135deg, #fef08a 0%, #fde047 100%);
    border-color: #facc15;
    border-width: 4px;
}

.promo-card.yellow::after {
    content: '🎉';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 2em;
    opacity: 0.3;
}

.promo-card:not(.red):not(.yellow) {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-color: #60a5fa;
    border-width: 4px;
}

.promo-card:not(.red):not(.yellow)::after {
    content: '⭐';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 2em;
    opacity: 0.3;
}

.promo-card h3 {
    position: relative;
    z-index: 1;
    color: #1e3a8a;
    font-size: 1.8em;
    font-weight: 900;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.promo-card p {
    position: relative;
    z-index: 1;
    color: #1e3a8a;
    font-size: 1.1em;
    font-weight: 600;
}

.promo-card .desc-small {
    font-size: 0.85em;
    margin-top: 10px;
    opacity: 0.9;
}

/* Contact Info */
.contact-info {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    color: white;
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 30px;
}

.contact-info h2 {
    color: white;
    text-align: center;
}

.contact-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 25px;
}

.contact-item h3 {
    margin-bottom: 10px;
    font-size: 1.1em;
}

.contact-item p {
    font-size: 1em;
    line-height: 1.6;
}

.contact-item a {
    color: #fbbf24;
    text-decoration: none;
    font-weight: bold;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item .note {
    font-size: 0.9em;
    opacity: 0.9;
    margin-top: 5px;
}

@media (max-width: 768px) {
    .biaya-section h1 {
        font-size: 2em;
    }

    .biaya-detail {
        grid-template-columns: 1fr;
    }

    .biaya-card .price {
        font-size: 1.8em;
    }

    .spp-card .price {
        font-size: 1.8em;
    }

    .promo-grid {
        grid-template-columns: 1fr;
    }
}