:root {
  --paper: oklch(0.97 0.012 88);
  --paper-2: oklch(0.94 0.02 85);
  --ink: oklch(0.27 0.075 255);
  --ink-soft: oklch(0.42 0.05 255);
  --gold: oklch(0.7 0.09 78);
  --gold-deep: oklch(0.5 0.08 75);
  --sea: oklch(0.62 0.07 250);
  --err: oklch(0.5 0.17 27);
  --field: oklch(0.99 0.006 88);
  --serif: "Bodoni Moda", "Didot", "Bodoni 72", Georgia, serif;
  --sans: "Jost", "Futura", "Century Gothic", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------- Hero (el save the date) ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding: clamp(18px, 4vw, 40px);
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  background: var(--paper);
}
.hero::before {
  content: "";
  position: absolute;
  inset: clamp(12px, 2.4vw, 28px);
  border: 1px solid var(--gold);
  pointer-events: none;
  z-index: 2;
}
.wave { position: absolute; width: clamp(250px, 72vw, 780px); height: auto; z-index: 0; pointer-events: none; }
.wave--top { top: 0; left: 0; }
.wave--bottom { bottom: 0; right: 0; }

.hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(60px, 11vh, 110px) 0 calc(clamp(250px, 72vw, 780px) * 0.34 + 24px);
  width: 100%;
  max-width: 640px;
}
.brand { margin: 0; line-height: 0; }
.brand img { width: clamp(240px, 70vw, 400px); height: auto; display: block; }

.occasion {
  margin: clamp(18px, 3vh, 28px) 0 0;
  font-size: clamp(.9rem, 3.6vw, 1.25rem);
  letter-spacing: .3em; text-transform: uppercase; font-weight: 400;
}
.rule { width: clamp(150px, 46vw, 300px); border: 0; height: 1px; background: var(--gold); margin: clamp(16px, 3vh, 26px) 0; }
.day { margin: 0; letter-spacing: .4em; text-indent: .4em; text-transform: uppercase; font-size: .95rem; font-weight: 400; }
.date {
  margin: 4px 0 0;
  font: 500 clamp(3.6rem, 15vw, 6rem)/1 var(--serif);
  font-variant-numeric: lining-nums;
  letter-spacing: -.01em;
}
.venue { margin: 0; font: 500 clamp(1.4rem, 5.6vw, 2rem)/1.1 var(--serif); letter-spacing: .1em; text-transform: uppercase; }
.venue-sub { margin: 6px 0 0; letter-spacing: .2em; text-transform: uppercase; font-size: clamp(.78rem, 3vw, .95rem); font-weight: 300; }

.cta {
  margin-top: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 30px;
  border: 1px solid var(--ink); color: var(--ink); text-decoration: none;
  font-size: .85rem; letter-spacing: .24em; text-transform: uppercase; font-weight: 500;
  transition: background-color .25s var(--ease), color .25s var(--ease);
}
.cta:hover { background: var(--ink); color: var(--paper); }
.map { margin-top: 22px; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; color: var(--ink); font-size: .85rem; letter-spacing: .2em; text-transform: uppercase; font-weight: 500; text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 6px; text-decoration-thickness: 1px; }
.map:hover { text-decoration-color: var(--ink); }
.map:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Formulario ---------- */
.rsvp { max-width: 720px; margin: 0 auto; padding: clamp(56px, 10vw, 110px) 20px clamp(40px, 8vw, 80px); }
.rsvp__head { text-align: center; margin-bottom: clamp(32px, 6vw, 56px); }
.rsvp__head h2 { margin: 0; font: 500 clamp(2rem, 7vw, 3.1rem)/1.05 var(--serif); letter-spacing: -.01em; }
.rsvp__head p { margin: 14px auto 0; max-width: 38ch; color: var(--ink-soft); }

.person { padding: 28px 0 8px; border-top: 1px solid var(--gold); }
.person h3 { margin: 0 0 18px; font: 500 1.35rem/1.2 var(--serif); }
.person h3 .num { font-style: italic; color: var(--gold-deep); margin-right: 6px; }
.person__bar { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.person--companion { animation: enter .45s var(--ease) both; }
@keyframes enter { from { opacity: 0; transform: translateY(10px); } }

.grid { display: grid; gap: 18px 20px; grid-template-columns: 1fr; margin-top: 4px; }
@media (min-width: 620px) { .grid { grid-template-columns: 1fr 1fr; } .field--wide { grid-column: 1 / -1; } }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
label, .check span { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 500; color: var(--ink-soft); }
.opt { text-transform: none; letter-spacing: 0; font-weight: 300; }
input[type="text"], input:not([type]), input[inputmode], select {
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--field);
  border: 1px solid oklch(0.82 0.03 85);
  border-radius: 2px;
  min-height: 48px; padding: 0 14px; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 20px) 21px, calc(100% - 15px) 21px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 36px; }
input:hover, select:hover { border-color: var(--gold); }
input:focus-visible, select:focus-visible { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px oklch(0.7 0.09 78 / .35); }
.rest-otra { margin-top: 10px; }
.field.invalid input, .field.invalid select { border-color: var(--err); }
.field .msg { color: var(--err); font-size: .875rem; margin: 0; }
.hint { margin: 0; font-size: .875rem; color: var(--ink-soft); font-weight: 300; }

fieldset.field { border: 0; padding: 0; margin: 0; }
legend { padding: 0; margin-bottom: 6px; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 500; color: var(--ink-soft); }
.choice { display: flex; gap: 12px; }
.radio { flex: 1; max-width: 160px; position: relative; text-transform: none; letter-spacing: 0; }
.radio input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.radio span { display: flex; align-items: center; justify-content: center; min-height: 48px; border: 1px solid oklch(0.82 0.03 85); background: var(--field); border-radius: 2px; font-size: 1rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink); transition: background-color .2s, color .2s, border-color .2s; }
.radio:hover span { border-color: var(--gold); }
.radio input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.radio input:focus-visible + span { outline: 2px solid var(--gold-deep); outline-offset: 3px; }
.field.invalid .radio span { border-color: var(--err); }
.check { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; margin: 0 0 14px; cursor: pointer; }
.check input { appearance: none; width: 22px; height: 22px; border: 1px solid var(--ink); border-radius: 2px; background: var(--field); display: grid; place-content: center; margin: 0; cursor: pointer; flex: none; }
.check input::after { content: ""; width: 11px; height: 6px; border-left: 2px solid var(--paper); border-bottom: 2px solid var(--paper); transform: rotate(-45deg) translate(1px, -1px) scale(0); transition: transform .18s var(--ease); }
.check input:checked { background: var(--ink); }
.check input:checked::after { transform: rotate(-45deg) translate(1px, -1px) scale(1); }
.check input:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 3px; }

.link { background: none; border: 0; color: var(--ink-soft); font: inherit; font-size: .9rem; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; min-height: 44px; padding: 0 4px; }
.link:hover { color: var(--err); }

.actions { border-top: 1px solid var(--gold); padding-top: 24px; margin-top: 8px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.btn { font: 500 .85rem var(--sans); letter-spacing: .22em; text-transform: uppercase; min-height: 52px; padding: 0 28px; border: 1px solid var(--ink); border-radius: 2px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 10px; transition: background-color .25s var(--ease), color .25s var(--ease), opacity .2s; }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover:not(:disabled) { background: var(--paper-2); }
.btn--primary { background: var(--ink); color: var(--paper); width: 100%; margin-top: 30px; min-height: 58px; }
.btn--primary:hover:not(:disabled) { background: oklch(0.34 0.08 255); }
.btn:focus-visible, .cta:focus-visible, .link:focus-visible { outline: 2px solid var(--gold-deep); outline-offset: 3px; }
.btn:disabled { opacity: .55; cursor: progress; }

.form-error { margin: 22px 0 0; padding: 14px 16px; border: 1px solid var(--err); color: var(--err); background: oklch(0.97 0.02 27); border-radius: 2px; }

.done { text-align: center; padding: 28px 0 10px; animation: enter .6s var(--ease) both; }
.done:focus { outline: none; }
.done img { display: block; width: clamp(150px, 46vw, 210px); height: auto; margin: 0 auto 28px; }
.done h2 { margin: 6px 0 12px; font: 500 clamp(2.2rem, 8vw, 3.4rem)/1.05 var(--serif); }
.done p { margin: 0 auto; max-width: 40ch; }
.done__meta { margin-top: 26px !important; padding-top: 22px; border-top: 1px solid var(--gold); letter-spacing: .14em; text-transform: uppercase; font-size: .85rem; line-height: 1.9; color: var(--ink-soft); }

.foot { text-align: center; padding: 30px 20px 50px; font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); font-weight: 300; }
.foot p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}