:root {
  color-scheme: light;
  --ink: #162f3b;
  --muted: #526b73;
  --surface: #ffffff;
  --soft: #eef8f5;
  --line: #cfe1de;
  --brand: #087f77;
  --brand-dark: #075b58;
  --accent: #f0b35e;
  --focus: #0b5fff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #f7fbfa; color: var(--ink); font-size: 1rem; line-height: 1.6; }
a { color: var(--brand-dark); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip-link { position: absolute; left: 1rem; top: -4rem; padding: .7rem 1rem; background: var(--ink); color: white; z-index: 10; }
.skip-link:focus { top: 1rem; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; overflow-wrap: anywhere; }
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(247,251,250,.95); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { font-weight: 800; font-size: 1.2rem; text-decoration: none; color: var(--ink); }
.brand span { color: var(--brand); }
.nav-links { display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; }
.nav-links a { text-decoration: none; font-weight: 650; }
.lang { border: 1px solid var(--line); border-radius: 999px; padding: .4rem .75rem; background: var(--surface); font-weight: 700; }
.hero { padding: clamp(4rem, 10vw, 8rem) 0 5rem; background: radial-gradient(circle at 80% 10%, #d8f1e8 0, transparent 42%), linear-gradient(135deg, #f7fbfa, #eaf7f3); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; }
.hero-grid > *, .guestbook > *, .grid > * { min-width: 0; overflow-wrap: anywhere; }
.eyebrow { color: var(--brand-dark); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: .8rem; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; }
h1 { font-size: clamp(2.3rem, 6vw, 4.8rem); margin: .6rem 0 1.2rem; max-width: 13ch; }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); margin: 0 0 .8rem; }
.lede { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 62ch; }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.button { min-height: 2.9rem; display: inline-flex; align-items: center; justify-content: center; border-radius: .75rem; padding: .7rem 1.1rem; border: 2px solid transparent; font: inherit; font-weight: 750; text-decoration: none; cursor: pointer; }
.button.primary { background: var(--brand); color: white; }
.button.primary:hover { background: var(--brand-dark); }
.button.secondary { background: var(--surface); color: var(--brand-dark); border-color: var(--brand); }
.hero-card { background: var(--surface); border: 1px solid var(--line); border-radius: 1.5rem; padding: 1.5rem; box-shadow: 0 1rem 3rem rgba(22,47,59,.09); }
.pulse { display: flex; gap: .8rem; align-items: center; padding: 1rem; border-radius: 1rem; background: var(--soft); }
.dot { width: .8rem; height: .8rem; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }
section { padding: 5rem 0; }
.section-intro { max-width: 62ch; margin-bottom: 2rem; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 1rem; padding: 1.4rem; }
.card h3 { margin-top: .2rem; }
.card p { color: var(--muted); margin-bottom: 0; }
.audience { background: #173b43; color: white; }
.audience .section-intro, .audience .card p { color: #dcecea; }
.audience .card { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); }
.guestbook { display: grid; grid-template-columns: .8fr 1.2fr; gap: 2rem; align-items: start; }
form { display: grid; gap: .8rem; }
input:disabled, textarea:disabled { background: #edf3f2; border-color: #9ebbb7; color: var(--ink); cursor: not-allowed; }
button:disabled { cursor: not-allowed; }
.button:disabled, .button.primary:disabled { background: #e8f0ee; border-color: #9ebbb7; color: var(--brand-dark); }
label { font-weight: 700; }
input, textarea { width: 100%; border: 1px solid #9ebbb7; border-radius: .65rem; padding: .75rem; font: inherit; background: white; color: var(--ink); }
textarea { min-height: 8rem; resize: vertical; }
.form-message { min-height: 1.6rem; color: var(--brand-dark); }
.guestbook-list { display: grid; gap: .8rem; }
.entry { border-left: 4px solid var(--accent); padding: .8rem 1rem; background: var(--surface); border-radius: .4rem; }
.entry strong { display: block; }
footer { border-top: 1px solid var(--line); padding: 2rem 0 3rem; color: var(--muted); }
@media (max-width: 760px) {
  .nav { align-items: flex-start; padding: .8rem 0; flex-direction: column; }
  .nav-links { gap: .7rem; }
  .hero-grid, .guestbook { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  section { padding: 3.5rem 0; }
  h1 { max-width: 18ch; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}