:root {
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --bg-light: #F8FAFC;
  --bg-dark: #0F172A;
  --text-light: #0F172A;
  --text-dark: #F8FAFC;
  --card-light: #FFFFFF;
  --card-dark: #111827;
  --border-light: #E5E7EB;
  --border-dark: #1F2937;
}

/* ================= BASE ================= */

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-light);
  color: var(--text-light);
  transition: all 0.3s ease;
  line-height: 1.7;
}

body.dark {
  background: var(--bg-dark);
  color: var(--text-dark);
}

/* ================= NAVBAR ================= */

.navbar {
  position: sticky;
  top: 0;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
}

body.dark .navbar {
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-dark);
}

.nav-content {
  max-width: 1100px;
  margin: auto;
  padding: 0.9rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.3px;
  color: inherit;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo img {
  height: 32px;
  width: auto;
  display: block;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-light);
}

body.dark .logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-dark);
}

.logo-build {
  color: var(--primary);
}

.nav-links a {
  text-decoration: none;
  color: inherit;
  font-weight: 500;
  font-size: 0.9rem;
}

.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 6px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: 0.3s ease;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
}

.nav-links a:hover {
  opacity: 0.7;
}

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

/* ================= LAYOUT ================= */

.container {
  max-width: 1100px;
  margin: auto;
}

/* ================= HERO ================= */

.hero {
  text-align: center;
  max-width: 700px;
  margin: auto;
  padding: 3rem 1.2rem 2rem;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.05rem;
  opacity: 0.65;
  max-width: 500px;
  margin: auto;
}

.cta {
  margin-top: 2rem;
  display: inline-block;
  padding: 12px 24px;
  font-size: 0.95rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  transition: 0.3s ease;
}

.cta:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

/* ================= FEATURE GRID ================= */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1.2rem;
}

.card {
  padding: 1.6rem;
  border-radius: 16px;
  background: var(--card-light);
  border: 1px solid var(--border-light);
  transition: 0.25s ease;
}

body.dark .card {
  background: #0f172a;
  border: 1px solid var(--border-dark);
}

.card h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

.card p {
  font-size: 0.95rem;
  opacity: 0.75;
}

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

/* ================= PRIVACY PAGE ================= */

.privacy-wrapper {
  max-width: 750px;
  margin: auto;
  padding: 3rem 1.2rem;
}

.privacy-card {
  padding: 2rem;
  border-radius: 18px;
  background: var(--card-light);
  border: 1px solid var(--border-light);
}

body.dark .privacy-card {
  background: #0f172a;
  border: 1px solid var(--border-dark);
}

.privacy-card h1 {
  font-size: 2rem;
}

.privacy-card h2 {
  margin-top: 2rem;
  font-size: 1.1rem;
}


.privacy-card h3 {
  margin-top: 1.5rem;
  font-size: 1rem;
}

.privacy-card ul {
  padding-left: 20px;
}

footer {
  text-align: center;
  padding: 4rem 0 3rem;
  font-size: 0.9rem;
}

footer > a{
  text-decoration: none;
}

/* ================= RESPONSIVE ================= */

@media (max-width: 768px) {

  .nav-content {
    padding: 0.8rem 1rem;
  }

  .nav-links {
    gap: 14px;
  }

  .nav-cta {
    display: none;
  }

  .hero h1 {
    font-size: 1.9rem;
    line-height: 1.3;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .privacy-card {
    padding: 1.6rem;
  }

  footer {
    padding: 2.5rem 1rem;
  }
}