:root {
  --bg: #0a0a1a;
  --bg-card: #12122a;
  --bg-nav: rgba(10, 10, 26, 0.95);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: var(--accent);
  --accent-hover: #4f46e5;
  --accent-bg: rgba(99, 102, 241, 0.1);
  --border: rgba(255,255,255,0.08);
  --card-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-card: #f8fafc;
  --bg-nav: rgba(255,255,255,0.95);
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: var(--accent);
  --accent-hover: #4f46e5;
  --accent-bg: rgba(99,102,241,0.08);
  --border: rgba(0,0,0,0.08);
  --card-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

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

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #818cf8;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #e2e8f0;
  border: 1px solid #334155;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  text-decoration: none;
}

.navbar-links {
  display: flex;
  gap: 32px;
}

.navbar-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.navbar-links a:hover {
  color: #f1f5f9;
}

.navbar-actions {
  display: flex;
  gap: 12px;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: #e2e8f0;
  font-size: 20px;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1040 50%, #0a0a1a 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 18px;
  color: #94a3b8;
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-mockup {
  display: flex;
  width: 420px;
  height: 320px;
  background: #1e293b;
  border-radius: 16px;
  border: 1px solid #334155;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.mockup-sidebar {
  width: 60px;
  background: #0f172a;
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.mockup-logo {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
}

.mockup-item {
  width: 36px;
  height: 36px;
  background: #1e293b;
  border-radius: 8px;
}

.mockup-item.active {
  background: var(--accent);
}

.mockup-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.mockup-header {
  height: 48px;
  border-bottom: 1px solid #334155;
}

.mockup-chat {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-end;
}

.mockup-msg {
  padding: 8px 14px;
  border-radius: 12px;
  font-size: 12px;
  max-width: 70%;
  opacity: 0;
  animation: fadeInMsg 0.4s forwards;
}

.mockup-msg:nth-child(1) { animation-delay: 0.5s; }
.mockup-msg:nth-child(2) { animation-delay: 1s; }
.mockup-msg:nth-child(3) { animation-delay: 1.5s; }
.mockup-msg:nth-child(4) { animation-delay: 2s; }

.mockup-msg.left {
  background: #334155;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.mockup-msg.right {
  background: var(--accent);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mockup-input {
  height: 40px;
  border-top: 1px solid #334155;
}

/* Section headers */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 18px;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto;
}

/* Channels */
.channels {
  padding: 100px 0;
}

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

.channel-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}

.channel-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.channel-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px;
}

.channel-icon.whatsapp {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.channel-icon.instagram {
  background: rgba(168, 85, 247, 0.1);
  color: #a855f7;
}

.channel-icon.hotline {
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent);
}

.channel-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.channel-card p {
  font-size: 14px;
  color: #94a3b8;
}

/* How It Works */
.how-it-works {
  padding: 100px 0;
  background: #0f172a;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  text-align: center;
  padding: 24px;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: #94a3b8;
}

/* Features */
.features {
  padding: 100px 0;
}

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

.feature-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 32px;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.feature-card i {
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: #94a3b8;
}

/* Pricing */
.pricing {
  padding: 100px 0;
  background: #0f172a;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 16px;
  padding: 32px;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--accent);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.price {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 24px;
}

.price span {
  font-size: 16px;
  font-weight: 400;
  color: #94a3b8;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 24px;
}

.pricing-card li {
  padding: 8px 0;
  font-size: 14px;
  color: #94a3b8;
  border-bottom: 1px solid #334155;
}

.pricing-card li:last-child {
  border-bottom: none;
}

.pricing-card li::before {
  content: "✓ ";
  color: #22c55e;
  font-weight: 600;
}

/* FAQ */
.faq {
  padding: 100px 0;
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid #334155;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  color: #f1f5f9;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.faq-question i {
  transition: transform 0.2s;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-bottom: 20px;
}

.faq-answer p {
  font-size: 14px;
  color: #94a3b8;
}

/* CTA */
.cta {
  padding: 100px 0;
  text-align: center;
  background: linear-gradient(135deg, #1a1040 0%, #0a0a1a 100%);
}

.cta h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta p {
  font-size: 18px;
  color: #94a3b8;
  margin-bottom: 32px;
}

/* Footer */
.footer {
  padding: 60px 0 24px;
  border-top: 1px solid #334155;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  color: #94a3b8;
  margin-top: 8px;
  max-width: 300px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: #94a3b8;
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #f1f5f9;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid #334155;
  font-size: 13px;
  color: #64748b;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  color: #64748b;
  font-size: 18px;
  transition: color 0.2s;
}

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

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s, transform 0.6s;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-links, .navbar-actions { display: none; }
  .navbar-toggle { display: block; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content h1 { font-size: 32px; }
  .hero-content p { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }
  .channels-grid, .steps-grid, .features-grid, .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.popular { transform: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}