:root {
  --bg: #f8fafc;
  --body: #0f172a;
  --muted: #475569;
  --primary: #1d4ed8;
  --primary-dark: #1e40af;
  --accent: #f97316;
  --surface: #ffffff;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  color: var(--body);
  background: var(--bg);
}

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

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--body);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-weight: 700;
  color: #fff;
  overflow: hidden;
}


.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.brand-text {
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.main-nav {
  position: relative;
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-weight: 500;
  color: var(--muted);
}

.main-nav .btn-sm {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.main-nav .btn-sm:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(29, 78, 216, 0.25);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
}

.hero {
  padding: 120px 0 80px;
}

.hero-content {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.6rem, 4vw + 1rem, 3.6rem);
  margin-bottom: 16px;
}

.hero-copy p {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 24px rgba(29, 78, 216, 0.22);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.link {
  font-weight: 600;
  color: var(--primary);
}

.stats {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.stats div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
}

.stat-label {
  color: var(--muted);
  font-size: 0.95rem;
}

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

.hero-illustration {
  width: min(100%, 460px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}











.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: clamp(2.1rem, 3vw + 1rem, 2.8rem);
  margin-bottom: 16px;
}

.section-header p {
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto;
}

.features .feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}

.features article {
  background: var(--surface);
  padding: 26px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
  transition: transform 0.2s ease;
}

.features article:hover {
  transform: translateY(-6px);
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.12), rgba(249, 115, 22, 0.18));
  color: var(--primary);
  margin-bottom: 18px;
}

.icon svg {
  width: 28px;
  height: 28px;
}
.features h3 {
  margin: 0 0 10px;
}

.features p {
  color: var(--muted);
  line-height: 1.6;
}

.community {
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(249, 115, 22, 0.12));
}

.community-card {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.community-copy p {
  color: var(--muted);
  line-height: 1.6;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  gap: 12px;
}

.checklist li::before {
  content: '✔';
  color: var(--primary);
  font-weight: 700;
  margin-right: 12px;
}

.community-metrics {
  display: grid;
  gap: 24px;
  padding: 34px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.metric-number {
  font-size: 2rem;
  font-weight: 700;
}

.metric-label {
  color: var(--muted);
}

.security .security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.security article {
  padding: 28px;
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  line-height: 1.6;
  color: var(--muted);
}

.security h3 {
  color: var(--body);
  margin-top: 0;
}

.cta {
  background: #0f172a;
  color: #f8fafc;
}

.cta-card {
  text-align: center;
  padding: 64px 32px;
  background: rgba(15, 23, 42, 0.7);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(248, 250, 252, 0.12);
  display: grid;
  gap: 22px;
}

.cta-card .btn {
  background: #f97316;
}

.cta-card .btn:hover {
  box-shadow: 0 20px 28px rgba(249, 115, 22, 0.3);
}

.cta-card .btn + .btn {
  margin-left: 0;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  font-size: 0.95rem;
  color: #cbd5f5;
}

.site-footer {
  background: #0b1220;
  color: #e2e8f0;
  padding: 60px 0 40px;
}

.site-footer .container {
  display: grid;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-weight: 700;
  color: #fff;
  overflow: hidden;
}

.footer-brand .brand-text {
  font-size: 1.4rem;
}

.subtext {
  margin: 4px 0 0;
  color: #94a3b8;
}

.footer-links {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.footer-links h4 {
  margin: 0 0 12px;
}

.footer-links a {
  display: block;
  color: #cbd5f5;
  margin-bottom: 8px;
}

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

.footer-copy {
  margin: 0;
  font-size: 0.9rem;
  color: #94a3b8;
}

.footnote {
  color: #94a3b8;
  margin-top: 6px;
}

@media (max-width: 900px) {
  .main-nav ul {
    position: absolute;
    top: 110%;
    right: 0;
    background: var(--surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 20px;
    flex-direction: column;
    gap: 18px;
    transform: scale(0.95);
    transform-origin: top right;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .main-nav ul.open {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
  }

  .main-nav .btn-sm {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 720px) {
  .hero {
    padding: 90px 0 60px;
  }

  .site-header .container {
    padding: 14px 0;
  }

  
  .community-metrics {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 540px) {
  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .stats {
    gap: 18px;
  }
}