/* HouseLog landing page – minimal layout and typography */
:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #525252;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-border: #e5e5e5;
  --font-sans: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --max-width: 48rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

header .wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

header .lang-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

header .lang-current {
  color: var(--color-text-muted);
}

header .lang-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

header .lang-link:hover {
  text-decoration: underline;
}

header svg {
  width: 2rem;
  height: 2rem;
  color: var(--color-text-muted);
}

header .logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

main {
  flex: 1;
  padding: var(--space-12) var(--space-4);
}

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  margin: 0 0 var(--space-6);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

.hero p {
  margin: 0 0 var(--space-8);
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background-color: var(--color-primary);
  border: none;
  border-radius: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s;
}

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

.cta:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

footer {
  padding: var(--space-6) var(--space-4);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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