:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --dark-bg: #0f172a;
  --dark-card: #1e293b;
  --dark-border: #334155;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
  --card-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
  --glow-shadow: 0 0 50px -10px rgba(37, 99, 235, 0.35);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  background-color: #f8fafc;
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Header & Navbar */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background-color: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all 0.3s ease;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-main);
}

.brand-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-main);
  border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.btn-dark {
  background: #0f172a;
  color: #ffffff;
}

.btn-dark:hover {
  background: #1e293b;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: 14px;
}

/* Hero Section */
.hero-section {
  padding: 90px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #eff6ff;
  border: 1px solid #bfdbfe;
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #0f172a;
  margin-bottom: 20px;
}

.hero-title span {
  background: linear-gradient(135deg, #2563eb 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: #64748b;
}

.hero-trust span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* App Showcase & Device Mockups */
.showcase-wrapper {
  margin-top: 50px;
  display: flex;
  justify-content: center;
  position: relative;
}

.showcase-card {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.4), var(--glow-shadow);
  max-width: 960px;
  width: 100%;
  color: white;
}

.showcase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #334155;
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background-color: #ef4444; }
.dot-yellow { background-color: #f59e0b; }
.dot-green { background-color: #10b981; }

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.mockup-item {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 18px;
  padding: 16px;
}

.mockup-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 6px;
  font-weight: 600;
}

.tag-orange { background: rgba(251, 146, 60, 0.15); color: #fb923c; border: 1px solid #c2410c; }
.tag-teal { background: rgba(45, 212, 191, 0.15); color: #2dd4bf; border: 1px solid #0d9488; }
.tag-green { background: rgba(74, 222, 128, 0.15); color: #4ade80; border: 1px solid #166534; }
.tag-blue { background: rgba(96, 165, 250, 0.15); color: #60a5fa; border: 1px solid #1e40af; }

/* Features Section */
.section {
  padding: 90px 0;
}

.section-title-wrap {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-badge {
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s ease;
  box-shadow: var(--card-shadow);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: #cbd5e1;
  box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.08);
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  background-color: var(--primary-light);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #0f172a;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Steps / How it works */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.step-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 30px;
  position: relative;
}

.step-num {
  font-size: 3rem;
  font-weight: 900;
  color: #e2e8f0;
  line-height: 1;
  margin-bottom: 12px;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

/* Download Section */
.download-section {
  background: var(--bg-gradient);
  border-radius: 32px;
  padding: 70px 40px;
  color: white;
  text-align: center;
  margin: 60px 0;
  box-shadow: var(--glow-shadow);
}

.download-title {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.download-desc {
  font-size: 1.15rem;
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto 36px;
}

.download-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.store-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 24px 30px;
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: white;
  transition: all 0.25s ease;
  min-width: 260px;
}

.store-card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.3);
}

.store-icon {
  font-size: 2.4rem;
}

.store-text {
  text-align: left;
}

.store-small {
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.store-name {
  font-size: 1.1rem;
  font-weight: 700;
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

.faq-item {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px;
}

.faq-q {
  font-weight: 700;
  font-size: 1.05rem;
  color: #0f172a;
  margin-bottom: 8px;
}

.faq-a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Footer */
footer {
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 50px 0 30px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #f1f5f9;
  padding-top: 24px;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.4rem;
  }
  .nav-links {
    display: none;
  }
  .download-title {
    font-size: 2rem;
  }
  .download-section {
    padding: 50px 20px;
  }
}