/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f9fafb;
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header */
.header {
  background: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}
.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: #2563eb;
}
.nav-menu {
  display: flex;
  gap: 25px;
}
.nav-menu a {
  text-decoration: none;
  color: #444;
  font-weight: 500;
  transition: color 0.3s;
}
.nav-menu a:hover {
  color: #2563eb;
}
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}
.hamburger span {
  width: 25px;
  height: 3px;
  background: #333;
  border-radius: 2px;
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  line-height: 1.2;
}
.highlight {
  color: #2563eb;
}
.subtitle {
  font-size: 1.1rem;
  color: #555;
  max-width: 700px;
  margin: 0 auto 30px;
}
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}
.btn-primary {
  background: #2563eb;
  color: white;
}
.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}
.btn-outline {
  border: 2px solid #2563eb;
  color: #2563eb;
}
.btn-outline:hover {
  background: #eff6ff;
}
.hero-img {
  margin-top: 40px;
}
.mockup {
  display: inline-block;
  background: #e0f2fe;
  padding: 20px;
  border-radius: 16px;
  font-weight: 600;
  color: #1e40af;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Section */
.section {
  padding: 70px 0;
}
.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 20px;
  color: #1e293b;
}
.subtitle.center {
  text-align: center;
  margin-bottom: 40px;
}

/* Demo Grid - Thumbnail Kecil */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 30px;
  justify-items: center;
}
.demo-grid img {
  width: 100%;
  max-width: 180px;
  height: auto;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.25s, box-shadow 0.25s;
}
.demo-grid img:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.15);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
}
.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 90%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #fff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 2001;
}
.close:hover {
  color: #ccc;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
  margin-top: 30px;
}
.feature-card {
  background: white;
  padding: 25px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  text-align: center;
}
.feature-card .icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 56px;
  height: 56px;
  background: #eff6ff;
  border-radius: 12px;
  margin: 0 auto 16px;
  color: #2563eb;
}
.feature-card .icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}
.feature-card h3 {
  margin-bottom: 12px;
  color: #1e293b;
}

/* Pricing */
.bg-light {
  background: #f8fafc;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}
.pricing-card {
  background: white;
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  position: relative;
  text-align: center;
}
.pricing-card.popular {
  border: 2px solid #2563eb;
  transform: scale(1.03);
}
.popular-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #2563eb;
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}
.pricing-card h3 {
  margin-bottom: 15px;
  font-size: 1.4rem;
}
.price {
  font-size: 2rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 20px;
}
.pricing-card ul {
  list-style: none;
  margin: 25px 0;
  text-align: left;
}
.pricing-card ul li {
  padding: 6px 0;
  color: #555;
}
.pricing-card ul li::before {
  content: "✓";
  color: #2563eb;
  margin-right: 8px;
  font-weight: bold;
}

/* FAQ */
.faq-item {
  margin: 25px 0;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.faq-item h3 {
  margin-bottom: 10px;
  color: #1e293b;
}

/* Kontak */
.bg-dark {
  background: #1e293b;
  color: white;
}
.section-title.light,
.subtitle.light {
  color: white;
}
.btn-whatsapp {
  background: #25d366;
  color: white;
  margin-top: 20px;
  display: inline-block;
}
.btn-whatsapp:hover {
  background: #1faa53;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  text-align: center;
  padding: 20px 0;
}

/* Mobile Menu */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    display: none;
  }
  .nav-menu.active {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .pricing-card.popular {
    transform: scale(1);
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .demo-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}