:root {
  --primary: #8B5CF6;
  --primary-light: #A78BFA;
  --primary-dark: #7C3AED;
  --secondary: #A855F7;
  --accent: #F472B6;
  --accent-light: #FBCFE8;
  --background: #F5F3FF;
  --background-dark: #EDE9FE;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --white: #FFFFFF;
  --success: #10B981;
  --warning: #F59E0B;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 40px rgba(139, 92, 246, 0.15);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--white);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Utilities */
.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--background);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  overflow: hidden;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-cta {
  display: none;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  padding: 140px 0 100px;
  background: linear-gradient(180deg, var(--background) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-badge span {
  color: var(--primary);
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
}

.hero-stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-frame {
  position: relative;
  width: 280px;
  height: 580px;
  background: linear-gradient(145deg, #1a1a2e, #16213e);
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--shadow-xl);
}

.phone-frame::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: #0a0a0a;
  border-radius: 20px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--background);
  border-radius: 36px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-screen-placeholder {
  text-align: center;
  padding: 20px;
}

.phone-screen-placeholder .logo-large {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 20px;
}

.phone-screen-placeholder p {
  color: var(--text-muted);
  font-size: 14px;
}

.floating-card {
  position: absolute;
  background: var(--white);
  padding: 16px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 3s ease-in-out infinite;
}

.floating-card.card-1 {
  top: 60px;
  right: -20px;
  animation-delay: 0s;
}

.floating-card.card-2 {
  bottom: 80px;
  left: -30px;
  animation-delay: 1.5s;
}

.floating-card-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.floating-card-text {
  font-size: 14px;
}

.floating-card-text strong {
  display: block;
  color: var(--text-primary);
}

.floating-card-text span {
  color: var(--text-muted);
  font-size: 12px;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Download Buttons */
.download-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--text-primary);
  color: var(--white);
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.download-btn svg {
  width: 28px;
  height: 28px;
}

.download-btn .btn-text {
  text-align: left;
}

.download-btn .btn-text small {
  font-size: 11px;
  opacity: 0.8;
  display: block;
}

.download-btn .btn-text span {
  font-size: 17px;
  font-weight: 600;
}

/* Section Styles */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-block;
  padding: 8px 16px;
  background: var(--background);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Features Section */
.features {
  background: var(--white);
}

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

.feature-card {
  background: var(--background);
  padding: 36px;
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
  background: var(--white);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 28px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
  background: var(--background);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 0;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  font-size: 24px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.step-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.step-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  max-width: 280px;
  margin: 0 auto;
}

/* Testimonials Section */
.testimonials {
  background: var(--white);
}

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

.testimonial-card {
  background: var(--background);
  padding: 32px;
  border-radius: var(--radius-lg);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 28px;
  font-size: 60px;
  color: var(--primary);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 18px;
}

.testimonial-info strong {
  display: block;
  color: var(--text-primary);
  font-size: 15px;
}

.testimonial-info span {
  color: var(--text-muted);
  font-size: 13px;
}

.testimonial-rating {
  display: flex;
  gap: 2px;
  margin-top: 4px;
}

.testimonial-rating svg {
  width: 14px;
  height: 14px;
  fill: var(--warning);
}

/* FAQ Section */
.faq {
  background: var(--background);
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s;
}

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

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform 0.3s;
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

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

.faq-item.open .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -25%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -15%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta .container {
  position: relative;
  z-index: 1;
}

.cta h2 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta .download-buttons {
  justify-content: center;
}

.cta .download-btn {
  background: var(--white);
  color: var(--text-primary);
}

.cta .download-btn:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
  padding: 60px 0 30px;
  background: var(--text-primary);
  color: var(--white);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand .logo-text {
  color: var(--white);
  -webkit-text-fill-color: var(--white);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background 0.2s;
}

.footer-social a:hover {
  background: var(--primary);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

.footer-column h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--white);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 12px;
}

.footer-column a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-column a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-bottom-links a:hover {
  color: var(--white);
}

/* Invite Page Styles */
.invite-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  text-align: center;
  background: var(--background);
}

.invite-card {
  background: var(--white);
  padding: 48px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: 420px;
  width: 100%;
}

.invite-icon {
  width: 88px;
  height: 88px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-size: 44px;
}

.invite-card h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.invite-card > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 16px;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--background-dark);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 24px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.invite-status {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.invite-fallback {
  display: none;
}

.invite-fallback.show {
  display: block;
}

.open-app-btn {
  display: inline-block;
  padding: 16px 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}

.open-app-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.5);
}

/* Legal Pages */
.legal-page {
  padding-top: 120px;
  padding-bottom: 80px;
  background: var(--background);
  min-height: 100vh;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 60px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.legal-content h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.legal-content .last-updated {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 40px;
}

.legal-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.legal-content ul {
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-left: 24px;
  line-height: 1.8;
}

.legal-content li {
  margin-bottom: 8px;
}

.legal-content a {
  color: var(--primary);
  text-decoration: none;
}

.legal-content a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .features-grid,
  .steps-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid::before {
    display: none;
  }

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

@media (max-width: 768px) {
  section {
    padding: 70px 0;
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 120px 0 70px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero p {
    font-size: 17px;
  }

  .section-header h2 {
    font-size: 32px;
  }

  .features-grid,
  .steps-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .download-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .cta h2 {
    font-size: 32px;
  }

  .legal-content {
    padding: 40px 24px;
  }
}