:root {
    --bg-dark: #0d0c1d;
    --bg-card: rgba(23, 22, 48, 0.7);
    --primary-text: #e0e0e0;
    --secondary-text: #b0b0c0; /* Sedikit lebih terang untuk kontras */
    --neon-cyan: #00f6ff;
    --neon-green: #2fff00;
    --neon-red: #ff3c00;
    --border-glow: rgba(0, 246, 255, 0.5);
    --font-display: 'Orbitron', sans-serif;
    --font-main: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--primary-text);
    padding: 2rem;
    min-height: 100vh;
}

.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image:
        linear-gradient(var(--neon-cyan, transparent) 1px, transparent 1px),
        linear-gradient(90deg, var(--neon-cyan, transparent) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.05;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

.cyber-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--neon-cyan);
    text-shadow: 0 0 15px var(--neon-cyan);
    margin-bottom: 0.5rem;
}

.cyber-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-text);
}

.order-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    align-items: flex-start;
}

/* --- Progress Bar --- */
.progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-glow);
    padding-bottom: 1rem;
}
.progress-step {
    color: var(--secondary-text);
    position: relative;
    font-size: 0.9rem;
    text-align: center;
    flex: 1;
}
.progress-step.completed,
.progress-step.active {
    color: var(--neon-cyan);
    font-weight: bold;
}
.progress-step::before {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 15px;
    height: 15px;
    border-radius: 50%;
    border: 2px solid var(--secondary-text);
    background: var(--bg-dark);
}
.progress-step.completed::before,
.progress-step.active::before {
    border-color: var(--neon-cyan);
}
.progress-step.completed::before {
    background: var(--neon-cyan);
}


.selection-panel h2 {
    font-family: var(--font-display);
    color: var(--neon-cyan);
    margin-bottom: 0.5rem; /* Mengurangi margin untuk deskripsi */
    border-bottom: 1px solid var(--border-glow);
    padding-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.section-description {
    font-size: 0.95rem;
    color: var(--secondary-text);
    margin-bottom: 1.5rem;
}

.step-num {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--neon-cyan);
    border-radius: 50%;
    margin-right: 1rem;
    font-size: 1rem;
    flex-shrink: 0;
}

.tier-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.tier-card {
    background: var(--bg-card);
    border: 2px solid var(--border-glow);
    padding: 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.tier-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}
.tier-card ul {
    list-style: none;
    padding: 0;
    margin-top: auto;
    text-align: left;
    font-size: 0.9rem;
}
.tier-card ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}
.tier-card ul li::before {
    content: '✓'; /* Mengganti jadi centang */
    color: var(--neon-green);
    position: absolute;
    left: 0;
}
.tier-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px var(--border-glow);
}
.tier-card.active {
    background: rgba(0, 246, 255, 0.15);
    transform: scale(1.05);
}
#tier-gold.active { border-color: #ffd700; box-shadow: 0 0 25px #ffd70099; }
#tier-diamond.active { border-color: #b9f2ff; box-shadow: 0 0 25px #b9f2ff99; }
#tier-vvip.active { border-color: #e040fb; box-shadow: 0 0 25px #e040fb99; }

.duration-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 0;
}

.radio-label {
    flex-grow: 1;
    text-align: center;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-glow);
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    user-select: none;
}
.duration-options input[type="radio"] { display: none; }
.duration-options input[type="radio"]:checked + .radio-label {
    background-color: var(--neon-cyan);
    color: var(--bg-dark);
    font-weight: bold;
}
.duration-price {
    display: block;
    font-size: 0.8em;
    opacity: 0.8;
    margin-top: 4px;
}
input[type="radio"]:checked + .radio-label .duration-price {
    opacity: 1;
}

.custom-options { padding: 1rem 0; }

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
#custom-key-input {
    width: 100%;
    padding: 0.8rem;
    margin-top: 1rem;
    background-color: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--neon-cyan);
    color: var(--primary-text);
    font-family: var(--font-main);
    font-size: 1rem;
}

/* --- Info Ikon & Tooltip --- */
.info-icon {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1px solid var(--secondary-text);
    color: var(--secondary-text);
    font-size: 0.8rem;
    cursor: help;
}
.info-icon .tooltip {
    visibility: hidden;
    width: 220px;
    background-color: #111;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 10px;
    position: absolute;
    z-index: 1;
    bottom: 150%;
    left: 50%;
    margin-left: -110px;
    opacity: 0;
    transition: opacity 0.3s;
    border: 1px solid var(--border-glow);
    font-size: 0.85rem;
}
.info-icon:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.summary-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    padding: 1.5rem;
    border-radius: 8px;
    position: sticky;
    top: 2rem;
}
.summary-panel h2 {
    font-family: var(--font-display);
    text-align: center;
    margin-bottom: 2rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 1rem;
}
.summary-item span:first-child { color: var(--secondary-text); }
.discount-item span:first-child { color: var(--neon-green); }
.bonus-item strong { color: var(--neon-green); }

.voucher-input-group {
    display: flex;
    gap: 0.5rem;
}
#voucher-input {
    flex-grow: 1;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-glow);
    color: var(--primary-text);
    padding: 0.5rem;
    border-radius: 3px;
}
#apply-voucher-btn {
    background: transparent;
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 0 1rem;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s ease;
}
#apply-voucher-btn:hover { background: rgba(0, 246, 255, 0.1); }
#apply-voucher-btn.applied {
    background: var(--neon-green);
    border-color: var(--neon-green);
    color: var(--bg-dark);
}

.summary-panel hr {
    border: none;
    height: 1px;
    background-color: var(--border-glow);
    margin: 1.5rem 0;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem; /* Mengurangi margin bawah */
}
.summary-total strong {
    color: var(--neon-green);
}

.cyber-button {
    font-family: var(--font-display);
    font-weight: bold;
    color: var(--bg-dark);
    background: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
    padding: 1rem 1.5rem; /* Padding lebih besar */
    margin-top: 1rem; /* Memberi jarak dari total */
    cursor: pointer;
    width: 100%;
    text-align: center;
    transition: all 0.2s ease;
    text-decoration: none;
    display: block;
    font-size: 1.1rem; /* Font lebih besar */
}
.cyber-button:hover:not(:disabled) {
    box-shadow: 0 0 15px var(--neon-cyan);
    transform: translateY(-2px);
}
.cyber-button:disabled {
    background: var(--secondary-text);
    border-color: var(--secondary-text);
    cursor: not-allowed;
    opacity: 0.6;
}

/* --- Tombol Batal & Link Bantuan --- */
.cyber-button-cancel {
    font-family: var(--font-main);
    font-weight: 600;
    color: var(--neon-red);
    background: transparent;
    border: 1px solid var(--neon-red);
    padding: 0.6rem 1.5rem;
    margin-top: 0.75rem;
    cursor: pointer;
    width: 100%;
    text-align: center;
    transition: all 0.2s ease;
    border-radius: 5px;
}
.cyber-button-cancel:hover {
    background: rgba(255, 60, 0, 0.1);
    box-shadow: 0 0 10px var(--neon-red);
}

.help-text {
    text-align: center;
    margin-top: 1.5rem;
}
.help-text a {
    color: var(--secondary-text);
    font-size: 0.9rem;
    text-decoration: none;
}
.help-text a:hover {
    color: var(--neon-cyan);
    text-decoration: underline;
}


.hidden { display: none !important; }

@media (max-width: 992px) {
    .order-layout {
        grid-template-columns: 1fr;
    }
    .summary-panel {
        position: static;
        top: auto;
    }
}

@media (max-width: 768px) {
    .tier-selection {
        grid-template-columns: 1fr;
    }
    .duration-options {
        flex-direction: column;
    }
}