:root {
    --bg-main: #0B0E14;          /* Background gelap Amba */
    --card-bg: #12161F;          /* Background kartu */
    --amba-purple: #4B41E5;      /* Warna utama Amba */
    --text-white: #FFFFFF;
    --text-gray: #94A3B8;
    --border: #2D333B;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-white);
    padding: 50px 20px;
    display: flex;
    justify-content: center;
}

.container {
    max-width: 1100px;
    width: 100%;
}

.main-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2rem;
    letter-spacing: 2px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* Card Style */
.card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(75, 65, 229, 0.2);
}

/* Bagian Atas Kartu (Banner) */
.card-banner {
    height: 100px;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 70%, 0% 100%);
}

.banner-blue { background: linear-gradient(135deg, #2563EB, #4B41E5); }
.banner-purple { background: linear-gradient(135deg, #4B41E5, #7C3AED); }
.banner-dark { background: linear-gradient(135deg, #1E293B, #4B41E5); }

/* Badge Populer */
.badge-populer {
    position: absolute;
    top: 20px;
    right: -35px;
    background: #FFFFFF;
    color: var(--amba-purple);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 5px 40px;
    transform: rotate(45deg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.card-content {
    padding: 30px;
    text-align: center;
    margin-top: -30px;
    background: var(--card-bg);
    border-radius: 20px 20px 0 0;
    position: relative;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.description {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 25px;
    min-height: 60px;
}

/* Harga */
.price-box {
    margin-bottom: 30px;
}

.currency { font-size: 1.2rem; font-weight: 600; vertical-align: top; }
.amount { font-size: 3rem; font-weight: 800; }
.period { color: var(--text-gray); font-size: 0.9rem; }

/* Spesifikasi */
.specs-list {
    list-style: none;
    text-align: left;
    margin-bottom: 35px;
}

.specs-list li {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
}

/* Icon Checkmark */
.specs-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--amba-purple);
    font-weight: bold;
}

/* Tombol */
.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--amba-purple);
    color: white;
    text-decoration: none;
    padding: 12px 40px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn-action:hover {
    background: #3b35b8;
    box-shadow: 0 8px 20px rgba(75, 65, 229, 0.4);
    transform: scale(1.05);
}

.btn-action span {
    font-size: 0.7rem;
}

/* Container Judul */
.header-wrapper {
    text-align: center;
    margin-bottom: 60px;
}

/* Ukuran Teks Utama dengan Animasi Warna */
.main-title {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 8px;
    text-transform: uppercase;
    
    /* Membuat Gradasi Warna */
    background: linear-gradient(
        to right, 
        #4B41E5, 
        #7C3AED, 
        #2563EB, 
        #4B41E5
    );
    background-size: 200% auto;
    
    /* Klip background ke dalam teks */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    
    /* Animasi Pergerakan Warna */
    animation: gradientFlow 3s linear infinite;
}

/* Keyframes untuk aliran warna */
@keyframes gradientFlow {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: 200% center;
    }
}

/* Subtitle tetap statis */
.sub-title {
    font-size: 1rem;
    color: var(--text-gray);
    letter-spacing: 5px;
    margin-top: -5px;
    opacity: 0.8;
}

/* Responsif HP */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.8rem;
        letter-spacing: 4px;
    }
}