/* --- RESET & BASIC STYLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

:root {
    --bg-dark: #0a0f18;       /* Hitam Elegan */
    --bg-light: #ffffff;      /* Putih */
    --accent-blue: #0088ff;    /* Biru Cerah */
    --text-dark: #1e293b;
    --text-light: #f8fafc;
    --card-bg: #111827;       /* Hitam Abu untuk Card */
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent-blue);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* --- HEADER & NAVBAR --- */
header {
    background-color: rgba(10, 15, 24, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 45px;
    width: 45px;
    object-fit: contain;
}

.brand-name {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-light);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

/* --- HERO SECTION --- */
.hero-section {
    height: 100vh;
    background: linear-gradient(135px, rgba(10,15,24,0.95) 40%, rgba(0,136,255,0.15)), 
                url('https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-light);
}

.hero-content p {
    font-size: 1.2rem;
    color: #94a3b8;
    margin-bottom: 35px;
    line-height: 1.6;
}

.btn-cta {
    display: inline-block;
    background-color: var(--accent-blue);
    color: white;
    padding: 15px 35px;
    font-weight: 600;
    border-radius: 5px;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 136, 255, 0.4);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 136, 255, 0.6);
}

/* --- SERVICES SECTION --- */
.services-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

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

.service-card {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    padding: 40px 30px;
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

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

.icon-box {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.service-card p {
    color: #64748b;
    line-height: 1.6;
}

/* --- WHY CHOOSE US --- */
.why-section {
    padding: 5rem 0;
    background-color: var(--bg-dark);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.why-item {
    text-align: center;
    padding: 20px;
}

.why-item i {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.why-item h3 {
    margin-bottom: 10px;
}

.why-item p {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* --- PROCESS SECTION --- */
.process-section {
    padding: 5rem 0;
    background-color: #0f172a;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--accent-blue);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step h3 {
    margin-bottom: 10px;
}

.step p {
    color: #94a3b8;
    font-size: 0.9rem;
}

/* --- CONTACT SECTION --- */
.contact-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.info-details {
    margin-top: 30px;
}

.info-details p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.info-details i {
    color: var(--accent-blue);
    margin-right: 15px;
    width: 20px;
}

.contact-form {
    background-color: #f8fafc;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.btn-submit {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
}

.btn-submit:hover {
    background-color: #0066cc;
}

/* --- FOOTER --- */
footer {
    background-color: var(--bg-dark);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.footer-logo {
    height: 50px;
    width: 50px;
    object-fit: contain;
    margin-bottom: 10px;
}

.footer-socials a {
    color: white;
    font-size: 1.5rem;
    margin-left: 20px;
    transition: color 0.3s ease;
}

.footer-socials a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    color: #64748b;
    font-size: 0.9rem;
}

/* --- RESPONSIVE HAMBURGER MENU --- */
.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: white;
}

@media (max-width: 768px) {
    .menu-toggle { display: block; }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 75px;
        flex-direction: column;
        background-color: var(--bg-dark);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

    .nav-links.active { left: 0; }
    .contact-container { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 2.3rem; }
}