/* Reset & Variabel */
:root {
    --primary: #2563eb; /* Biru Intisari */
    --primary-hover: #1d4ed8;
    --secondary: #0f172a; /* Gelap */
    --accent: #10b981; /* Hijau Sukses */
    --text-main: #334155;
    --text-light: #64748b;
    --bg-main: #f8fafc;
    --white: #ffffff;
}

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

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

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

/* Tombol (Buttons) */
a { text-decoration: none; color: inherit; }
.btn-primary, .btn-secondary, .btn-outline {
    display: inline-block; padding: 12px 24px; border-radius: 8px; font-weight: 600; transition: all 0.3s ease;
}
.btn-primary { background: var(--primary); color: var(--white); box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
.btn-primary.large { font-size: 1.1rem; padding: 16px 32px; }
.btn-secondary { background: var(--white); color: var(--text-main); border: 1px solid #cbd5e1; }
.btn-secondary:hover { background: #f1f5f9; }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); padding: 8px 16px; }
.btn-outline:hover { background: var(--primary); color: var(--white); }

/* Navbar */
.navbar { background: var(--white); box-shadow: 0 1px 3px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.nav-content { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.brand-text { font-size: 1.5rem; color: var(--secondary); letter-spacing: -0.5px; }
.brand-text strong { color: var(--primary); }
.nav-links { display: flex; gap: 24px; align-items: center; font-weight: 600; }
.nav-links a:not(.btn-outline):hover { color: var(--primary); }

/* Hero Section */
.hero { padding: 100px 0; background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); overflow: hidden; }
.hero-content { display: flex; align-items: center; gap: 40px; }
.hero-text { flex: 1; }
.hero-text h1 { font-size: 3.5rem; line-height: 1.2; color: var(--secondary); margin-bottom: 24px; letter-spacing: -1px; }
.highlight { color: var(--primary); position: relative; }
.hero-text p { font-size: 1.25rem; color: var(--text-light); margin-bottom: 32px; max-width: 500px; }
.cta-group { display: flex; gap: 16px; }

.hero-image { flex: 1; perspective: 1000px; }
.mockup-browser { background: var(--secondary); border-radius: 12px; padding: 12px 12px 0 12px; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); transform: rotateY(-5deg) rotateX(5deg); transition: transform 0.5s ease; }
.mockup-browser:hover { transform: rotateY(0) rotateX(0); }
.browser-header { display: flex; gap: 8px; margin-bottom: 12px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }
.img-fluid { width: 100%; height: auto; border-radius: 4px 4px 0 0; display: block; }

/* Sections Umum */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; color: var(--secondary); margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--text-light); }

/* Fitur Grid */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.feature-card { background: var(--white); padding: 40px; border-radius: 16px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: transform 0.3s; border: 1px solid #f1f5f9; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 10px 15px rgba(0,0,0,0.1); border-color: #e2e8f0; }
.feature-card .icon { font-size: 3rem; margin-bottom: 24px; }
.feature-card h3 { font-size: 1.25rem; color: var(--secondary); margin-bottom: 12px; }

/* Cara Kerja */
.how-it-works { background: var(--white); }
.steps-container { display: flex; justify-content: space-between; position: relative; }
.step { flex: 1; text-align: center; padding: 0 20px; position: relative; z-index: 1; }
.step-number { width: 60px; height: 60px; background: var(--primary); color: var(--white); font-size: 1.5rem; font-weight: bold; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 24px auto; box-shadow: 0 4px 10px rgba(37,99,235,0.3); }
.step h3 { color: var(--secondary); margin-bottom: 12px; }

/* CTA Section */
.cta-section { background: var(--secondary); color: var(--white); text-align: center; }
.cta-box h2 { font-size: 2.5rem; margin-bottom: 16px; }
.cta-box p { font-size: 1.2rem; color: #94a3b8; margin-bottom: 40px; }
.req-text { font-size: 0.9rem !important; margin-top: 16px; margin-bottom: 0 !important; color: #64748b !important; }

/* Footer */
footer { background: var(--white); padding: 40px 0; border-top: 1px solid #e2e8f0; }
.footer-content { display: flex; justify-content: space-between; align-items: center; color: var(--text-light); }
.footer-links { display: flex; gap: 20px; }
.footer-links a:hover { color: var(--primary); }

/* Responsif */
@media (max-width: 992px) {
    .hero-content { flex-direction: column; text-align: center; }
    .hero-text h1 { font-size: 2.8rem; }
    .hero-text p { margin: 0 auto 32px auto; }
    .cta-group { justify-content: center; }
    .nav-links { display: none; /* Simplifikasi mobile */ }
    .steps-container { flex-direction: column; gap: 40px; }
}