/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-text: #1a1a2e;
  --color-text-muted: #5a5a72;
  --color-primary: #2b6cb0;
  --color-primary-hover: #1e4e8c;
  --color-accent: #38a169;
  --color-accent-hover: #2f855a;
  --color-border: #e2e8f0;
  --color-card-bg: #ffffff;
  --color-card-shadow: rgba(0, 0, 0, 0.06);
  --color-hero-gradient-start: #edf2f7;
  --color-hero-gradient-end: #e2e8f0;
  --color-tag-bg: #ebf4ff;
  --color-tag-text: #2b6cb0;
  --color-check: #38a169;
  --color-cross: #e53e3e;
  --radius: 8px;
  --max-width: 960px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f1117;
    --color-bg-alt: #181a24;
    --color-text: #e2e8f0;
    --color-text-muted: #a0aec0;
    --color-primary: #63b3ed;
    --color-primary-hover: #90cdf4;
    --color-accent: #68d391;
    --color-accent-hover: #9ae6b4;
    --color-border: #2d3748;
    --color-card-bg: #1a202c;
    --color-card-shadow: rgba(0, 0, 0, 0.3);
    --color-hero-gradient-start: #1a202c;
    --color-hero-gradient-end: #171923;
    --color-tag-bg: #1a365d;
    --color-tag-text: #90cdf4;
    --color-check: #68d391;
    --color-cross: #fc8181;
  }
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

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

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 4rem 0;
}

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

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

.nav-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.15s;
}

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

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 5rem 0 4rem;
  background: linear-gradient(180deg, var(--color-hero-gradient-start), var(--color-bg));
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero .subheadline {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s, transform 0.1s;
  cursor: pointer;
  border: none;
}

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

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

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

.btn-accent {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
}

/* ===== Section Headings ===== */
.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 1rem;
}

.step {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-card-shadow);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

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

/* ===== Comparison ===== */
.comparison-section {
  background-color: var(--color-bg-alt);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background: var(--color-card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px var(--color-card-shadow);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
  background-color: var(--color-bg-alt);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.comparison-table tbody td:first-child {
  font-weight: 600;
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.check {
  color: var(--color-check);
  font-weight: 700;
}

.cross {
  color: var(--color-cross);
  font-weight: 700;
}

/* ===== Pricing ===== */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 700px;
  margin: 0 auto;
}

.pricing-card {
  padding: 2.5rem 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card-bg);
  box-shadow: 0 2px 8px var(--color-card-shadow);
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  border-width: 2px;
  position: relative;
}

.pricing-card.featured::before {
  content: "Popular";
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.pricing-period {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.pricing-features li {
  padding: 0.4rem 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.pricing-features li::before {
  content: "\2713  ";
  color: var(--color-check);
  font-weight: 700;
}

/* ===== Privacy Highlights ===== */
.privacy-highlights {
  text-align: center;
  background-color: var(--color-bg-alt);
}

.privacy-badges {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.privacy-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
}

.privacy-badge .icon {
  font-size: 1.3rem;
}

/* ===== CTA ===== */
.cta-section {
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  list-style: none;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-text);
}

/* ===== Legal Pages ===== */
.legal-page {
  padding: 3rem 0 5rem;
}

.legal-page h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.legal-page .last-updated {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
}

.legal-page h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-page p,
.legal-page ul,
.legal-page ol {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

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

.legal-page li {
  margin-bottom: 0.4rem;
}

.legal-page strong {
  color: var(--color-text);
}

.legal-page a {
  color: var(--color-primary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .subheadline {
    font-size: 1.05rem;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .comparison-table {
    font-size: 0.85rem;
    min-width: 520px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.65rem 0.6rem;
  }

  .privacy-badges {
    flex-direction: column;
    align-items: center;
  }

  section {
    padding: 3rem 0;
  }

  .nav-links {
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.65rem;
  }

  .nav-links {
    gap: 0.75rem;
    font-size: 0.85rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}