:root {
  --bg: #f7fbfc;
  --surface: #ffffff;
  --surface-alt: #eef7f8;
  --border: #d5e5e8;
  --text: #142139;
  --text-muted: #3b4a63;
  --accent: #0b8996;
  --accent-dark: #086874;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body.landing {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top right, #dff1f4 0%, var(--bg) 45%);
  line-height: 1.55;
}

a {
  color: var(--accent);
}

.landing-header {
  width: min(1160px, 92vw);
  margin: 0 auto;
  padding: 1.1rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.brand {
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.app-link {
  text-decoration: none;
  color: var(--surface);
  background: var(--accent);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-weight: 600;
}

.app-link:hover {
  background: var(--accent-dark);
}

.header-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
}

.lang-switch a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.82rem;
  padding: 0.38rem 0.6rem;
}

.lang-switch a.active {
  background: var(--surface-alt);
  color: var(--text);
}

main {
  width: min(1160px, 92vw);
  margin: 0 auto 2.5rem;
}

.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: clamp(1.2rem, 2.5vw, 2rem);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.8rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3.8vw, 2.8rem);
  line-height: 1.15;
}

.lead {
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: clamp(1rem, 2.2vw, 1.18rem);
}

.cta-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.cta-primary,
.cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.6rem 1.1rem;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

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

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

.cta-secondary {
  border-color: var(--border);
  color: var(--text);
  background: var(--surface-alt);
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-alt);
}

.section {
  margin-top: 1.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: clamp(1rem, 2.4vw, 1.8rem);
}

h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
}

.feature-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.feature-grid li {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: #fbfdfd;
}

.feature-grid h3 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
}

.feature-grid p {
  margin: 0;
  color: var(--text-muted);
}

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.8rem;
  background: #fbfdfd;
}

.faq details + details {
  margin-top: 0.6rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.faq p {
  margin: 0.6rem 0 0;
  color: var(--text-muted);
}

.landing-footer {
  width: min(1160px, 92vw);
  margin: 0 auto 2rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.landing-footer nav {
  display: flex;
  gap: 1rem;
}

.landing-footer a {
  text-decoration: none;
}

.landing-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

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