:root {
    --bg-main: #09090b;
    --bg-card: rgba(24, 24, 27, 0.6);
    --border-light: rgba(255, 255, 255, 0.08);
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --accent-red: #ef4444;
    --accent-glow: rgba(239, 68, 68, 0.2);
    --gradient-primary: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Background Glow Effects */
.glow-bg {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-glow);
    top: -100px;
    left: -100px;
}

.glow-2 {
    width: 300px;
    height: 300px;
    background: rgba(249, 115, 22, 0.1);
    top: 20%;
    right: -50px;
}

/* Hero Section (Split Layout) */
.hero {
    padding: 120px 0 100px;
    position: relative;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
    max-width: 550px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(239, 68, 68, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Hero Visual Animation */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.visual-wrapper {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.mockup-placeholder {
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent; /* Membuatnya tembus pandang */
}

.logo-large {
    font-size: 5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-image {
    max-width: 60%;
    max-height: 60%;
    object-fit: contain;
    filter: drop-shadow(0 10px 15px rgba(239, 68, 68, 0.3));
}

/* Features Section */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    line-height: 1.3;
}

.section-title span {
    color: var(--text-muted);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(12px);
    padding: 32px 24px;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(239, 68, 68, 0.3);
    background-color: rgba(39, 39, 42, 0.8);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 20px;
    background: rgba(255,255,255,0.05);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: #fff;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* How to Use Section */
.how-to-use {
    padding: 80px 0;
}

.how-to-card {
    background: linear-gradient(145deg, rgba(24, 24, 27, 0.8), rgba(9, 9, 11, 0.9));
    border: 1px solid var(--border-light);
    border-radius: 30px;
    padding: 60px;
}

.how-to-card h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.step-item {
    position: relative;
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    position: absolute;
    top: -30px;
    left: -10px;
    z-index: 0;
}

.step-text {
    position: relative;
    z-index: 1;
}

.step-text h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--accent-red);
}

.step-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer / CTA */
footer {
    padding: 100px 0 40px;
}

.cta-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(9, 9, 11, 0) 100%);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 30px;
    padding: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 80px;
}

.cta-content h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.cta-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.cta-action {
    text-align: right;
}

.btn-download {
    background: var(--text-main);
    color: var(--bg-main);
    padding: 18px 36px;
    font-size: 1.1rem;
    border-radius: 14px;
}

.btn-download:hover {
    background: white;
    transform: scale(1.05);
}

.version-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 12px;
}

.footer-bottom {
    text-align: center;
    color: #52525b;
    border-top: 1px solid var(--border-light);
    padding-top: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 3rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .cta-box {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
    }
    
    .cta-action {
        text-align: center;
    }
}

/* --- Konfigurasi Ruang Iklan (Ads) --- */
.ad-container {
    margin: 20px auto;
    text-align: center;
    width: 100%;
    max-width: 728px;
}

.ad-placeholder {
    background: rgba(255, 255, 255, 0.03);
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px 20px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 250px; /* Tinggi minimum agar layout web tidak lompat saat iklan loading */
    transition: all 0.3s ease;
}

.ad-placeholder:hover {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}