:root {
  --primary: #0B3D91;
  --primary-hover: #072B6B;
  --primary-light: #EBF3FF;
  --secondary: #10B981;
  --accent: #F59E0B;
  --dark: #0F172A;
  --dark-surface: #1E293B;
  --text-main: #1E293B;
  --text-muted: #64748B;
  --bg: #F8FAFC;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

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

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Nav */
header.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.app-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}

nav.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav.nav-links a {
  color: var(--text-main);
  font-weight: 500;
  font-size: 0.95rem;
}

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

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-weight: 600 !important;
  transition: background 0.2s ease;
}

.nav-cta:hover {
  background: var(--primary-hover);
}

/* Hero Section */
.hero {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, #FFFFFF 0%, #EFF6FF 100%);
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--secondary);
  border-radius: 50%;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.18;
  color: var(--dark);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

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

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.play-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000000;
  color: #FFFFFF;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--shadow-md);
}

.play-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: #FFFFFF;
}

.play-button svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.btn-subtext {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  text-transform: uppercase;
  opacity: 0.8;
  line-height: 1;
}

.btn-maintext {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

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

.phone-mockup {
  width: 100%;
  max-width: 380px;
  background: var(--white);
  border-radius: 36px;
  border: 8px solid #0F172A;
  box-shadow: 0 25px 50px -12px rgba(11, 61, 145, 0.25);
  overflow: hidden;
  position: relative;
}

.phone-mockup img {
  width: 100%;
  height: auto;
  display: block;
}

/* Feature cards */
.section {
  padding: 80px 0;
}

.section-alt {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
}

.section-subtitle {
  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: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

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

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.6rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

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

/* Highlights / Spec summary */
.spec-box {
  background: linear-gradient(135deg, #0B3D91 0%, #1E293B 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin: 40px 0;
  box-shadow: var(--shadow-lg);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  text-align: center;
}

.spec-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: #38BDF8;
  margin-bottom: 6px;
}

.spec-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

/* Privacy Callout */
.privacy-banner {
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
}

.privacy-icon {
  font-size: 3rem;
  line-height: 1;
}

.privacy-banner h3 {
  font-size: 1.4rem;
  color: #166534;
  margin-bottom: 8px;
}

.privacy-banner p {
  color: #14532D;
  font-size: 0.98rem;
}

/* FAQ section */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.faq-answer {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

/* CTA strip */
.cta-strip {
  background: linear-gradient(135deg, var(--primary) 0%, #1D4ED8 100%);
  color: var(--white);
  padding: 70px 0;
  text-align: center;
}

.cta-strip h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-strip p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* Legal & Documentation Pages */
.doc-page {
  padding: 60px 0 90px;
}

.doc-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 50px 60px;
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
}

.doc-title {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}

.doc-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.doc-body h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--dark);
  margin-top: 36px;
  margin-bottom: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.doc-body h2:first-of-type {
  border-top: none;
  margin-top: 10px;
  padding-top: 0;
}

.doc-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--dark);
  margin-top: 20px;
  margin-bottom: 10px;
}

.doc-body p {
  margin-bottom: 16px;
  color: #334155;
  font-size: 1rem;
}

.doc-body ul, .doc-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.doc-body li {
  margin-bottom: 8px;
  color: #334155;
}

.doc-callout {
  background: #F1F5F9;
  border-left: 4px solid var(--primary);
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

.doc-callout-warning {
  background: #FEF3C7;
  border-left-color: var(--accent);
  color: #92400E;
}

.doc-callout-success {
  background: #DCFCE7;
  border-left-color: var(--secondary);
  color: #14532D;
}

/* Footer */
footer.site-footer {
  margin-top: auto;
  background: var(--dark);
  color: #94A3B8;
  padding: 60px 0 30px;
  font-size: 0.92rem;
  border-top: 1px solid #334155;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h4 {
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-brand p {
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h5 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

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

.footer-col a {
  color: #CBD5E1;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid #334155;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .privacy-banner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .doc-card {
    padding: 30px 20px;
  }
  nav.nav-links {
    gap: 12px;
  }
}