:root {
  --color-bg: #FBFAF7;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F1EFE6;
  --color-primary: #0F6E5C;
  --color-primary-dark: #0B5347;
  --color-text: #22302C;
  --color-text-muted: #51605A;
  --color-border: #E2DFD3;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
  --max-width: 880px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 18px;
}

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

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

img {
  max-width: 100%;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

/* Header */

.site-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}

.brand img {
  width: 36px;
  height: 36px;
}

.brand span {
  font-weight: 700;
  font-size: 1.1rem;
}

.header-cta {
  display: inline-block;
  padding: 10px 18px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}

.header-cta:hover,
.header-cta:focus {
  background: var(--color-primary-dark);
  color: #fff;
}

/* Hero */

.hero {
  padding: 72px 0 56px;
  text-align: center;
}

.hero h1 {
  font-size: 2.2rem;
  line-height: 1.25;
  margin: 0 0 20px;
  color: var(--color-primary-dark);
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
}

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

/* Sections */

section {
  padding: 56px 0;
}

section:nth-child(even) {
  background: var(--color-surface);
}

.section-title {
  font-size: 1.7rem;
  margin: 0 0 12px;
  color: var(--color-primary-dark);
  text-align: center;
}

.section-intro {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 700px;
  display: grid;
  gap: 16px;
}

.feature-list li {
  background: var(--color-surface-alt);
  border-radius: var(--radius);
  padding: 18px 22px;
  border: 1px solid var(--color-border);
}

.note-box {
  max-width: 700px;
  margin: 28px auto 0;
  padding: 16px 20px;
  background: var(--color-surface-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
  font-size: 0.98rem;
  color: var(--color-text-muted);
}

.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 0 auto;
  max-width: 700px;
  display: grid;
  gap: 20px;
}

.steps li {
  counter-increment: step;
  padding-left: 54px;
  position: relative;
  min-height: 36px;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: -2px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  max-width: 820px;
  margin: 0 auto;
}

.benefits-grid .card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.benefits-grid .card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
}

.benefits-grid .card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

.security-list {
  max-width: 700px;
  margin: 0 auto;
  padding-left: 1.2em;
}

.security-list li {
  margin-bottom: 10px;
}

.faq-item {
  max-width: 700px;
  margin: 0 auto 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface-alt);
}

.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--color-primary);
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item p {
  margin: 0;
  padding: 0 20px 18px;
  color: var(--color-text-muted);
}

.contact-section {
  text-align: center;
}

/* Footer */

.site-footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--color-border);
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer p {
  margin: 4px 0;
}

/* Privacy page */

.legal-content h2 {
  color: var(--color-primary-dark);
  margin-top: 40px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content ul {
  padding-left: 1.3em;
}

.legal-content .highlight-box {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 20px 0;
}

.legal-content .quote-limited-use {
  font-style: italic;
  border-left: 4px solid var(--color-primary);
  padding-left: 16px;
  margin: 16px 0;
}

.back-home {
  display: inline-block;
  margin-bottom: 24px;
}

/* Responsive */

@media (max-width: 640px) {
  body {
    font-size: 17px;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  section {
    padding: 40px 0;
  }

  .site-header .container {
    flex-wrap: wrap;
    gap: 12px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #12201B;
    --color-surface: #16271F;
    --color-surface-alt: #1C2E25;
    --color-text: #EDEFE9;
    --color-text-muted: #B7C2BA;
    --color-border: #2B3C33;
    --color-primary: #3FAE92;
    --color-primary-dark: #63C6AC;
  }
}