/* =========================================
   1. VARIABEL & PENGATURAN DASAR
   ========================================= */
:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-bun: #fbdca8; 
    --accent-zig: #f7a41d; 
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* =========================================
   2. UTILITAS TEKS
   ========================================= */
.section-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.center-text {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

/* =========================================
   3. VERSI DESKTOP (TATA LETAK UTAMA)
   ========================================= */

/* Navigasi */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-bun);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--text-main);
}

/* Tombol */
.btn-primary, .btn-secondary, .btn-outline {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-zig), #ea580c);
    color: #fff;
    box-shadow: 0 4px 15px rgba(247, 164, 29, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(247, 164, 29, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-outline {
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6rem 5%;
    min-height: 80vh;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(247, 164, 29, 0.1);
    color: var(--accent-zig);
    border: 1px solid rgba(247, 164, 29, 0.2);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.highlight {
    background: -webkit-linear-gradient(0deg, var(--accent-bun), var(--accent-zig));
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.cta-group {
    display: flex;
    gap: 1rem;
}

/* Visual Terminal */
.hero-visual {
    flex: 1;
    perspective: 1000px;
    width: 100%;
}

.code-window {
    background: #000;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.code-window:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.window-header {
    background: #1e293b;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.red { background: #ef4444; }
.yellow { background: #eab308; }
.green { background: #22c55e; }

.title {
    color: var(--text-muted);
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    margin-left: 1rem;
}

.code-window pre {
    padding: 1.5rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    overflow-x: auto;
}

.comment { color: #64748b; }
.keyword { color: #38bdf8; }
.string { color: #a3e635; }
.success { color: #34d399; }

/* Fitur Umum */
.features {
    padding: 5rem 5%;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

.section-title span {
    color: var(--accent-zig);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    text-align: left;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-bun);
}

.icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

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

/* Arsitektur */
.architecture {
    padding: 5rem 5%;
    background: linear-gradient(to bottom, transparent, rgba(30, 41, 59, 0.5));
}

.arch-content {
    max-width: 800px;
    margin: 0 auto;
}

.arch-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.steps {
    list-style-position: inside;
    color: var(--text-muted);
}

.steps li {
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 8px;
    border-left: 4px solid var(--accent-zig);
}

.steps strong {
    color: var(--text-main);
}

/* Zero Dependency */
.benchmark {
    padding: 6rem 5%;
    background-color: rgba(15, 23, 42, 0.4);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.zero-dep-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.zero-dep-card {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.6), rgba(15, 23, 42, 0.9));
    padding: 3rem 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05); 
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
}

.zero-dep-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: -webkit-linear-gradient(0deg, var(--accent-bun), var(--accent-zig));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.zero-dep-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    border-color: rgba(247, 164, 29, 0.3);
}

.zero-dep-card:hover::before {
    opacity: 1;
}

.zero-dep-card .icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.zero-dep-card h3 {
    color: var(--text-main);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.zero-dep-card h3 code {
    background: rgba(0,0,0,0.5);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 1.1rem;
    color: var(--accent-bun);
}

.zero-dep-card p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

/* FAQ */
.faq-section {
    padding: 5rem 5%;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateX(10px);
    border-color: var(--accent-bun);
}

.faq-item h4 {
    color: var(--text-main);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.faq-item h4::before {
    content: "Q.";
    color: var(--accent-zig);
    font-weight: 800;
    font-size: 1.4rem;
}

.faq-item p {
    color: var(--text-muted);
    line-height: 1.7;
    padding-left: 2.15rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 5%;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.sub-footer {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Animasi */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   4. VERSI MOBILE (MEDIA QUERIES)
   Mendeteksi layar di bawah 768px (Smartphone/Tablet Kecil)
   ========================================= */
@media screen and (max-width: 768px) {
    /* Menyesuaikan Navigasi agar menumpuk ke bawah */
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 5%;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    /* Merubah tata letak Hero menjadi kolom dan rata tengah */
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 4rem 5%;
        gap: 3rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.5rem; /* Mengecilkan ukuran font utama */
    }

    .hero p {
        margin-left: auto;
        margin-right: auto;
    }

    .cta-group {
        justify-content: center;
        flex-direction: column; /* Tombol menumpuk di layar kecil */
    }

    /* Mematikan efek 3D pada terminal visual untuk menghemat ruang layar ponsel */
    .code-window {
        transform: none !important;
    }

    .code-window pre {
        font-size: 0.8rem; /* Font terminal lebih kecil */
        padding: 1rem;
    }

    /* Mengurangi ukuran judul bagian */
    .section-title {
        font-size: 2rem;
    }

    /* Menyesuaikan padding pada bagian dalam agar tidak terlalu renggang */
    .features, .architecture, .benchmark, .faq-section {
        padding: 4rem 5%;
    }

    /* Memastikan tata letak grid menjadi 1 kolom penuh */
    .feature-grid, .zero-dep-container {
        grid-template-columns: 1fr;
    }

    /* Menyesuaikan jarak padding pada kotak FAQ */
    .faq-item {
        padding: 1.5rem;
    }

    .faq-item h4 {
        font-size: 1.1rem;
    }
}