:root {
  --electric-blue: #1769ff;
  --deep-navy: #0b1f4d;
  --navy-muted: #1a3a6e;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-on-dark: #f8fafc;
  --bg-light: #f1f5f9;
  --bg-white: #ffffff;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(11, 31, 77, 0.08);
  --radius: 12px;
  --max-width: 1080px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-white);
}

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

a {
  color: var(--electric-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--deep-navy);
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--electric-blue);
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--electric-blue);
  color: var(--text-on-dark);
  box-shadow: 0 4px 14px rgba(23, 105, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(23, 105, 255, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--text-on-dark);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  border-color: var(--text-on-dark);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--deep-navy) 0%, var(--navy-muted) 55%, #0d4a9e 100%);
  color: var(--text-on-dark);
  padding: 4rem 0 5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  font-weight: 800;
}

.hero-tagline {
  font-size: 1.25rem;
  color: rgba(248, 250, 252, 0.85);
  margin: 0 0 1rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.0625rem;
  color: rgba(248, 250, 252, 0.75);
  margin: 0 0 2rem;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.hero-icon {
  width: min(220px, 60vw);
  border-radius: 28px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
}

/* Sections */
section {
  padding: 4rem 0;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--deep-navy);
  margin: 0 0 0.5rem;
  font-weight: 700;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin: 0 auto 2.5rem;
  max-width: 36rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  color: var(--deep-navy);
}

.feature-card ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-secondary);
}

.feature-card li {
  margin-bottom: 0.35rem;
}

.feature-card li:last-child {
  margin-bottom: 0;
}

.bg-light {
  background: var(--bg-light);
}

/* Privacy callout */
.privacy-callout {
  background: linear-gradient(135deg, var(--electric-blue), #0d5ae0);
  color: var(--text-on-dark);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.privacy-callout h2 {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
}

.privacy-callout p {
  margin: 0;
  opacity: 0.9;
  max-width: 32rem;
  margin-inline: auto;
}

/* Pro section */
.pro-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 48rem;
  margin-inline: auto;
}

.pro-list li {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  text-align: center;
  font-weight: 500;
  color: var(--deep-navy);
}

/* Legal pages */
.legal-page {
  padding: 3rem 0 4rem;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--deep-navy);
  margin: 0 0 0.5rem;
}

.legal-meta {
  color: var(--text-secondary);
  margin: 0 0 2rem;
  font-size: 0.9375rem;
}

.legal-page h2 {
  font-size: 1.25rem;
  color: var(--deep-navy);
  margin: 2rem 0 0.75rem;
}

.legal-page p,
.legal-page ul {
  color: var(--text-secondary);
  margin: 0 0 1rem;
}

.legal-page ul {
  padding-left: 1.5rem;
}

.legal-page li {
  margin-bottom: 0.35rem;
}

/* Footer */
.site-footer {
  background: var(--deep-navy);
  color: rgba(248, 250, 252, 0.75);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: rgba(248, 250, 252, 0.85);
  font-size: 0.9375rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text-on-dark);
  text-decoration: underline;
}

.footer-copy {
  font-size: 0.875rem;
  margin: 0;
}

/* Responsive */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .hero-visual {
    justify-content: flex-end;
  }
}

@media (max-width: 600px) {
  .nav-links .nav-legal {
    display: none;
  }

  .header-inner .btn {
    padding: 0.6rem 1rem;
    font-size: 0.875rem;
  }
}