:root {
    --color-bg: #ffffff;
    --color-bg-light: #f8f8f8;
    --color-text: #000000;
    --color-text-muted: #333333;
    --color-primary: #000000;
    --color-border: #e2e8f0;
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
}

body {
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

.text-center { text-align: center; }
.icon-small { width: 18px; height: 18px; vertical-align: middle; }
.icon-tiny { width: 14px; height: 14px; vertical-align: middle; margin: 0 4px; color: var(--color-text-muted); }

/* Buttons */
.btn-primary, .btn-secondary, .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition-slow);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border: 1px solid var(--color-primary);
}

.btn-primary:hover {
    background: #fff;
    color: var(--color-primary);
}

.btn-outline {
    padding: 10px 24px;
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    transition: var(--transition-fast);
}

.btn-outline:hover {
    background: var(--color-bg-light);
    border-color: var(--color-primary);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: #fff;
    color: var(--color-primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-slow);
}

.navbar.scrolled {
    padding: 16px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 40px;
}

.nav-links.left-links {
    flex: 1;
    justify-content: flex-start;
}

.nav-links.right-links {
    flex: 1;
    justify-content: flex-end;
}

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

.logo img {
    height: 32px;
    width: 32px;
    object-fit: contain;
}

.logo span {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-links a:not(.btn-primary):not(.btn-outline) {
    color: var(--color-text);
    font-weight: 500;
    font-size: 15px;
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a:not(.btn-primary):not(.btn-outline):hover {
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 120px; /* Space for navbar */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background-color: var(--color-bg);
    overflow: hidden;
}

.hero-top-content {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 60px 40px 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 60px;
    z-index: 10;
}

.hero-left {
    flex: 1.2;
}

.hero-right {
    flex: 1;
    padding-top: 60px; /* Offset from the heading */
}

.hero h1 {
    font-size: clamp(3rem, 5.5vw, 5.5rem);
    color: var(--color-primary);
    margin-bottom: 24px;
    letter-spacing: -1.5px;
    line-height: 1.05;
    font-weight: 600;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--color-text);
    font-weight: 400;
    line-height: 1.5;
    max-width: 400px;
}

.hero-skyline {
    width: 100%;
    margin-top: 40px;
    z-index: 1;
    display: flex;
    align-items: flex-end;
}

.hero-skyline img {
    width: 100%;
    height: auto;
    display: block;
}

/* Container & Sections */
.section {
    padding: 100px 24px;
}

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

.bg-light {
    background-color: var(--color-bg-light);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 60px;
    max-width: 600px;
    margin-inline: auto;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 24px;
}

.about-text p:not(.lead) {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.glass-card {
    background: var(--color-bg-light);
    border-radius: 12px;
    padding: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.04);
}

.floating-logo {
    width: 200px;
    height: 200px;
    object-fit: contain;
    animation: float 6s ease-in-out infinite;
}

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

/* Features (Solution) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--color-bg);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: var(--transition-slow);
}

.feature-card:hover {
    box-shadow: 0 15px 30px rgba(0,0,0,0.06);
    transform: translateY(-5px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--color-bg-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    color: var(--color-text-muted);
}

.feature-list li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.feature-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.process-flow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.process-flow span {
    background: var(--color-bg-light);
    padding: 6px 12px;
    border-radius: 4px;
    color: var(--color-primary);
}

/* Benefits (Why Indonesia) */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.benefit-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    border-radius: 8px;
    transition: var(--transition-slow);
}

.benefit-item:hover {
    background: var(--color-bg-light);
}

.benefit-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.benefit-item h4 {
    font-size: 1.15rem;
    margin-bottom: 12px;
}

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

/* Image Divider */
.image-divider {
    width: 100%;
    position: relative;
    /* Optional: pull image slightly into padding area for tighter spacing */
    margin: 20px 0; 
}

.image-divider img {
    width: 100%;
    height: auto;
    display: block;
}

#expertise {
    padding-bottom: 40px;
}

#why-indonesia {
    padding-top: 40px;
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: #fff;
    padding: 80px 24px 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo span {
    color: #fff;
}

.footer-info p {
    margin-top: 16px;
    color: rgba(255,255,255,0.7);
}

.footer-contact h4 {
    color: #fff;
    margin-bottom: 24px;
    font-size: 1.25rem;
}

.footer-contact p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 32px;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUpAnim 1s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes fadeUpAnim {
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left, .slide-in-right, .hover-up, .reveal {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.slide-in-left { transform: translateX(-50px); }
.slide-in-right { transform: translateX(50px); }
.hover-up { transform: translateY(40px); }
.reveal { transform: translateY(30px); }

.slide-in-left.active, .slide-in-right.active, .hover-up.active, .reveal.active {
    opacity: 1;
    transform: translate(0);
}

/* Responsive */
@media (max-width: 992px) {
    .about-grid, .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile behavior */
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 60px 24px;
    }
    
    .glass-card {
        padding: 40px;
    }
}