:root {
  --bg: #faf7f2;
  --fg: #2b2a28;
  --muted: #6f6a62;
  --accent: #8a6f4d;
  --line: #e4ddd2;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--sans);
}

.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; gap: 1.25rem; justify-content: center; flex-wrap: wrap;
  padding: .75rem 1rem;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav a { color: var(--fg); text-decoration: none; font-size: .9rem; }
.nav a:hover { color: var(--accent); }

.hero {
  min-height: 80vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 3rem 1rem;
}
.eyebrow { letter-spacing: .2em; text-transform: uppercase; font-size: .8rem; color: var(--muted); }
h1, h2 { font-family: var(--serif); font-weight: 400; }
h1 { font-size: clamp(3rem, 10vw, 6rem); margin: .2em 0; line-height: 1; }
h1 span { color: var(--accent); }
h2 { font-size: 2.25rem; margin-top: 0; }
.date { font-size: 1.1rem; color: var(--muted); }

main { max-width: 42rem; margin: 0 auto; padding: 0 1rem; }
section { padding: 3.5rem 0; border-top: 1px solid var(--line); scroll-margin-top: 3rem; }
a { color: var(--accent); }

.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { display: flex; gap: 1.5rem; padding: .75rem 0; }
.timeline time { font-family: var(--serif); font-size: 1.4rem; min-width: 4rem; color: var(--accent); }
.timeline p { margin: 0; color: var(--muted); }

.button {
  display: inline-block; margin-top: 1.5rem; padding: .8rem 1.6rem;
  background: var(--accent); color: #fff; border: 0; border-radius: 999px;
  font: 500 1rem var(--sans); text-decoration: none; cursor: pointer;
}
.button:disabled { opacity: .6; cursor: wait; }

form { display: grid; gap: 1rem; }
label { display: grid; gap: .3rem; font-size: .9rem; color: var(--muted); }
label.inline { display: flex; align-items: center; gap: .5rem; color: var(--fg); }
input, textarea {
  font: inherit; color: var(--fg); padding: .6rem .75rem;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: .4rem; }
legend { font-size: .9rem; color: var(--muted); margin-bottom: .3rem; }
.hp { position: absolute; left: -9999px; }
.status { min-height: 1.5em; margin: 0; }
.status.ok { color: #3d7a4a; }
.status.err { color: #a53d3d; }

details { border-bottom: 1px solid var(--line); padding: .75rem 0; }
summary { cursor: pointer; font-weight: 500; }

footer { text-align: center; padding: 3rem 1rem; color: var(--muted); font-size: .85rem; }

h3 { font-family: var(--serif); font-weight: 600; font-size: 1.35rem; margin: 1.5rem 0 .25rem; }
.if-attending { display: grid; gap: 1rem; }
form:has(input[name="attending"][value="nei"]:checked) .if-attending { display: none; }
.if-plusone { display: none; }
form:has(input[name="plusone"]:checked) .if-plusone { display: grid; }

.hero-photo { display: block; width: 100%; max-width: 56rem; height: auto; margin-top: 3rem; border-radius: 12px; }
.photo { margin: 0 auto 3.5rem; max-width: 24rem; }
.photo img { display: block; width: 100%; height: auto; border-radius: 12px; }