:root {
  color-scheme: light;
  --color-bg: #ffffff;
  --color-surface: #f5f6f8;
  --color-text: #1f2328;
  --color-muted: #4a4f55;
  --color-accent: #2f5f8f;
  --color-border: #d7dce2;
  --max-width: 1120px;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(15, 20, 30, 0.08);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

main {
  padding: 0 20px 80px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 140px;
  height: auto;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--color-text);
}

.header-cta .btn {
  white-space: nowrap;
}

.hero {
  padding: 72px 0 48px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.subheadline {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 820px;
}

.intro p {
  margin: 10px 0;
  color: var(--color-muted);
}

.entry-cards {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 40px 0 80px;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--color-surface);
  box-shadow: var(--shadow);
}

.card h2 {
  margin-top: 0;
}

.content-block {
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  background: #fff;
}

.content-block h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.content-block ul {
  padding-left: 20px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text);
  background: transparent;
}

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

.btn-secondary {
  background: #e7edf5;
  color: var(--color-accent);
  border-color: transparent;
}

.language-toggle {
  display: inline-flex;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.9rem;
}

.language-toggle a {
  color: var(--color-accent);
}

.section-divider {
  height: 1px;
  background: var(--color-border);
  margin: 60px 0;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 20px;
  background: #fff;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 16px;
}

.section-anchor {
  scroll-margin-top: 120px;
}

@media (min-width: 900px) {
  .site-header .container {
    gap: 32px;
  }

  .hero {
    padding: 96px 0 56px;
  }

  .site-footer .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}


/* --- Mobile layout hardening (v1): ensures readable padding and scale on small screens without affecting desktop --- */
@media (max-width: 768px){
  .container{
    padding-left: 16px;
    padding-right: 16px;
  }
  header.hero h1{
    font-size: clamp(28px, 7vw, 40px);
    line-height: 1.12;
  }
  header.hero p,
  header.hero .lead,
  .hero p,
  .hero .lead{
    font-size: 1rem;
    line-height: 1.55;
  }
}