:root {
  --bg-primary: #07070f;
  --bg-secondary: #0e0e1c;
  --bg-card: #141428;
  --bg-card-hover: #1c1c38;
  --accent: #a855f7;
  --accent-secondary: #ec4899;
  --accent-gradient: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
  --accent-glow: rgba(168, 85, 247, 0.35);
  --success: #10b981;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(168, 85, 247, 0.4);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #1f1235 0%, var(--bg-primary) 70%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 15px;
}

/* Topbar WhatsApp Announcement */
.topbar {
  background: linear-gradient(90deg, #180d2b 0%, #25d36622 50%, #180d2b 100%);
  border-bottom: 1px solid rgba(37, 211, 102, 0.25);
  padding: 8px 0;
  font-size: 0.88rem;
  color: #e2e8f0;
}

.topbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.topbar-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-badge {
  background: #25d366;
  color: #04240f;
  font-weight: 800;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.topbar-wa-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #25d366;
  font-weight: 700;
  transition: all 0.2s;
}

.topbar-wa-link:hover {
  color: #10b981;
  text-decoration: underline;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-badge {
  font-size: 0.65rem;
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  padding: 3px 8px;
  border-radius: 20px;
  border: 1px solid rgba(168, 85, 247, 0.3);
  text-transform: uppercase;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 25px;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(168, 85, 247, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

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

.btn-wa {
  background: #25d366;
  color: #fff;
  font-weight: 700;
}

.btn-wa:hover {
  background: #1ebe5d;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.3);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  color: #c084fc;
  font-weight: 600;
  margin-bottom: 24px;
}

.live-dot {
  width: 8px;
  height: 8px;
  background: #ec4899;
  border-radius: 50%;
  animation: pulse-pink 1.5s infinite;
}

@keyframes pulse-pink {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(236, 72, 153, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(236, 72, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(236, 72, 153, 0); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 35px;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 25px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-badge-item svg {
  color: var(--accent);
}

/* Sections & Grids */
.section {
  padding: 70px 0;
}

.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 50px;
  font-size: 1.05rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 30px;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, #24143a 0%, var(--bg-card) 100%);
  transform: scale(1.04);
  box-shadow: 0 15px 40px rgba(168, 85, 247, 0.2);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

.pricing-header {
  text-align: center;
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.pricing-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pricing-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--text-main);
  margin: 15px 0 5px;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-features {
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.pricing-features li svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* FAQ Accordion */
.faq-list {
  max-width: 850px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-main);
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-question:hover {
  color: var(--accent);
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--accent);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding-bottom: 20px;
}

/* AI Summary Box */
.ai-summary-box {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.1) 0%, rgba(14, 14, 28, 0.9) 100%);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 30px auto;
  max-width: 900px;
}

.ai-summary-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  color: #c084fc;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ai-summary-content {
  color: #cbd5e1;
  font-size: 0.98rem;
  line-height: 1.7;
}

/* Blog Cards */
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.blog-thumb {
  height: 180px;
  background: linear-gradient(135deg, #2b1147 0%, #110d24 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  position: relative;
}

.blog-thumb-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: rgba(0, 0, 0, 0.7);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  color: #c084fc;
  font-weight: 600;
}

.blog-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: flex;
  gap: 15px;
}

.blog-title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-main);
}

.blog-excerpt {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.blog-read-more {
  color: #c084fc;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Article Detail */
.article-header {
  text-align: center;
  padding: 60px 0 30px;
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #cbd5e1;
}

.article-content h2 {
  font-size: 1.7rem;
  color: var(--text-main);
  margin: 40px 0 16px;
}

.article-content h3 {
  font-size: 1.35rem;
  color: #c084fc;
  margin: 30px 0 12px;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 20px 0 25px 25px;
}

.article-content li {
  margin-bottom: 10px;
  list-style: disc;
}

.article-content ol li {
  list-style: decimal;
}

/* Table of Contents */
.toc-box {
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 30px 0 40px;
}

.toc-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #c084fc;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.toc-list li {
  list-style: none;
  margin-bottom: 8px;
  font-size: 0.96rem;
}

.toc-list a {
  color: #cbd5e1;
  transition: color 0.2s;
}

.toc-list a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Article Callout */
.article-callout {
  background: linear-gradient(135deg, rgba(37, 211, 102, 0.1) 0%, rgba(168, 85, 247, 0.08) 100%);
  border-left: 4px solid #25d366;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px;
  margin: 30px 0;
}

.article-callout strong {
  color: #25d366;
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  margin-top: 30px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: rgba(0, 0, 0, 0.25);
  color: #c084fc;
  font-weight: 700;
}

.comparison-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #231238 0%, #0d0a1c 100%);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  text-align: center;
  position: relative;
  box-shadow: 0 10px 40px rgba(168, 85, 247, 0.15);
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 15px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 650px;
  margin: 0 auto 30px;
}

/* Floating WhatsApp */
.floating-wa {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 999;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
  transition: transform 0.25s ease;
}

.floating-wa:hover {
  transform: scale(1.1);
}

/* Footer */
.footer {
  background: #040409;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 25px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 15px 0 20px;
  max-width: 340px;
}

.footer-heading {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-main);
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #c084fc;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 25px;
  color: #64748b;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-menu.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .header-actions .btn-secondary {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }
}