*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img { max-width: 100%; }

:root {
  --bg: #F4F2F5;
  --surface: #FFFFFF;
  --surface-2: #EEEAF0;
  --ink: #221B28;
  --muted: #675D6E;
  --line: #DFD8E3;
  --accent: #B03E44;
  --accent-ink: #FFFFFF;
  --accent-soft: #FBE8E6;
  --ok: #2F6B45;
  --ok-soft: #E4F1E8;
  --stage-bg: #2A2230;
  --stage-hi: #3D3046;
  --stage-ink: #EFE3EA;
  --stage-muted: #B9A6B6;

  --display: "Marcellus", "Trajan Pro", Georgia, serif;
  --ui: "Figtree", "Segoe UI", system-ui, -apple-system, sans-serif;
  --script: "Pinyon Script", "Snell Roundhand", "Apple Chancery", cursive;
  --card: "Crimson Pro", Georgia, "Times New Roman", serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #141116;
    --surface: #1E1A21;
    --surface-2: #28222C;
    --ink: #F1EBF3;
    --muted: #B0A6B5;
    --line: #372F3C;
    --accent: #F29A93;
    --accent-ink: #1A1219;
    --accent-soft: #3B2224;
    --ok: #86CDA0;
    --ok-soft: #1E3326;
    --stage-bg: #231C28;
    --stage-hi: #372B3F;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #141116;
  --surface: #1E1A21;
  --surface-2: #28222C;
  --ink: #F1EBF3;
  --muted: #B0A6B5;
  --line: #372F3C;
  --accent: #F29A93;
  --accent-ink: #1A1219;
  --accent-soft: #3B2224;
  --ok: #86CDA0;
  --ok-soft: #1E3326;
  --stage-bg: #231C28;
  --stage-hi: #372B3F;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ui);
  font-size: 16px;
  line-height: 1.5;
}

/* ---------- Chrome ---------- */
.proto-bar {
  padding: 8px 16px;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 13px;
  text-align: center;
}
.site-head {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.wordmark {
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.wordmark img { width: 44px; height: 44px; border-radius: 12px; background: #fff; border: 1px solid var(--line); display: block; }
.foot-logo { width: 56px; height: 56px; border-radius: 12px; background: #fff; border: 1px solid var(--line); display: block; margin-bottom: 10px; }
.site-nav { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: 600 15px/1.2 var(--ui);
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-sm { min-height: 38px; padding: 8px 14px; font-size: 14px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.link-btn { border: 0; background: none; color: var(--accent); font: 600 14px var(--ui); cursor: pointer; padding: 4px 0; }

main { max-width: 1120px; margin: 0 auto; padding-inline: 16px; padding-block: 8px 64px; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(32px, 5vw, 48px); line-height: 1.1; }
h2 { font-size: clamp(24px, 3.4vw, 32px); line-height: 1.2; }
h3 { font-size: 20px; }
.eyebrow { margin: 0 0 10px; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.muted { color: var(--muted); }
.lede { font-size: 18px; color: var(--muted); max-width: 34em; margin: 16px 0 0; }

/* ---------- Home ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  padding-block: 24px 40px;
}
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.facts { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.facts li { padding: 6px 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: 14px; color: var(--muted); }

.stage-panel {
  background: radial-gradient(ellipse 90% 70% at 50% 20%, var(--stage-hi) 0%, var(--stage-bg) 72%) var(--stage-bg);
  border-radius: 18px;
  padding: 20px 8px 16px;
}
.section { padding-block: 40px; border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.section-head p { margin: 6px 0 0; color: var(--muted); max-width: 40em; }

.set-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.set-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.set-card h3 { font-size: 19px; }
.set-card p { margin: 2px 0 0; font-size: 14px; }
.set-foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.price { font-weight: 600; font-variant-numeric: tabular-nums; }

.swatch {
  position: relative;
  width: 100%;
  aspect-ratio: 1.47;
  border-radius: 6px;
  background: var(--sw-env);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
}
.swatch::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 58%;
  background: var(--sw-flap);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.15));
}
.swatch::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 58%;
  width: 15%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--sw-seal);
  transform: translate(-50%, -62%);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}
.swatch-liner { position: absolute; left: 0; right: 0; bottom: 0; height: 12%; background: var(--sw-liner); opacity: 0.9; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; counter-reset: step; }
.steps li { padding: 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); counter-increment: step; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 600; margin-bottom: 10px; }
.steps strong { display: block; font-size: 17px; }
.steps span { color: var(--muted); font-size: 15px; }

.privacy-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; padding: 24px; border-radius: 16px; background: var(--ok-soft); }
.privacy-card p { margin: 10px 0 0; }
.flow { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.flow li { padding: 10px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line); font-size: 15px; }
.flow li b { color: var(--ok); }

.site-foot { max-width: 1120px; margin: 0 auto; padding: 24px 16px 40px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }

/* ---------- Builder ---------- */
.stepper { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 20px; }
.stepper button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px 8px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font: 500 14px var(--ui);
  cursor: pointer;
}
.stepper button b { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--surface-2); font-size: 13px; }
.stepper button[aria-current="step"] { border-color: var(--accent); color: var(--ink); }
.stepper button[aria-current="step"] b { background: var(--accent); color: var(--accent-ink); }

.build-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  grid-template-areas: "panel preview";
  gap: 24px;
  align-items: start;
}
.build-grid > .panel { grid-area: panel; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.panel > h2 { font-size: 26px; }
.panel-intro { margin: 6px 0 18px; color: var(--muted); }
.build-grid > .preview { grid-area: preview; }
.preview { position: sticky; top: 12px; display: grid; gap: 10px; }
.price-line { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); }
.price-line strong { font-size: 22px; font-variant-numeric: tabular-nums; }
.panel-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); flex-wrap: wrap; }

.env-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.env-option {
  display: grid; gap: 8px; padding: 10px;
  border-radius: 12px; border: 2px solid var(--line);
  background: var(--surface); color: var(--ink);
  text-align: left; font: 500 14px var(--ui); cursor: pointer;
}
.env-option[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }

.lib { display: grid; gap: 8px; }
.lib-item {
  display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; align-items: start;
  padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); text-align: left; font: 15px var(--ui); cursor: pointer;
}
.lib-item .box { width: 22px; height: 22px; border-radius: 6px; border: 2px solid var(--muted); display: grid; place-items: center; font-size: 14px; color: var(--accent-ink); margin-top: 1px; }
.lib-item[aria-pressed="true"] { border-color: var(--accent); }
.lib-item[aria-pressed="true"] .box { background: var(--accent); border-color: var(--accent); }
.lib-item small { display: block; color: var(--muted); font-size: 13px; }
.lib-item:disabled { opacity: 0.45; cursor: not-allowed; }
.count-note { margin: 0 0 10px; font-size: 14px; color: var(--muted); }

.order-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 6px; }
.order-list li { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 10px; background: var(--surface-2); font-size: 15px; }
.order-list .pos { width: 22px; color: var(--muted); font-variant-numeric: tabular-nums; }
.order-list .grow { flex: 1; min-width: 0; }
.icon-btn { width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; font-size: 15px; }
.icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.field { display: grid; gap: 5px; margin-top: 12px; }
.field label, .field .label { font-size: 13px; font-weight: 600; color: var(--muted); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.4 var(--ui);
}
.field textarea { min-height: 92px; resize: vertical; }
.field-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
.hint { font-size: 13px; color: var(--muted); margin: 4px 0 0; }

details.card-edit { border: 1px solid var(--line); border-radius: 12px; padding: 0 14px; margin-top: 10px; background: var(--surface); }
details.card-edit summary { cursor: pointer; padding: 12px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 8px; }
details.card-edit summary span { color: var(--muted); font-weight: 400; font-size: 14px; }
details.card-edit[open] { padding-bottom: 14px; }
.group-title { margin: 22px 0 0; font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }

.toggle { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; padding: 12px; border-radius: 12px; background: var(--surface-2); cursor: pointer; }
.toggle input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); }
.toggle small { display: block; color: var(--muted); }

.summary { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 0; }
.summary li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.summary li span:last-child { font-variant-numeric: tabular-nums; white-space: nowrap; }
.summary li.total { font-weight: 600; font-size: 17px; border-bottom: 0; }
.pack-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.note { margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: var(--surface-2); font-size: 14px; color: var(--muted); }

/* ---------- Checkout & send ---------- */
.narrow { max-width: 760px; margin: 0 auto; }
.stack { display: grid; gap: 16px; }
.ok-banner { display: flex; gap: 12px; align-items: center; padding: 14px 16px; border-radius: 12px; background: var(--ok-soft); color: var(--ink); }
.ok-banner b { color: var(--ok); }
.copy-row { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.copy-row input { flex: 1 1 240px; min-width: 0; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: 15px var(--ui); }
.guest-links { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 6px; }
.guest-links li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 8px 10px; border-radius: 10px; background: var(--surface-2); font-size: 14px; }
.guest-links code { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 12px; }
.steps-small { margin: 10px 0 0; padding-left: 1.2em; display: grid; gap: 4px; font-size: 15px; }
.status-ok { color: var(--ok); font-weight: 600; font-size: 14px; margin: 8px 0 0; }
.status-err { color: #B3261E; font-weight: 600; font-size: 14px; margin: 8px 0 0; }
:root[data-theme="dark"] .status-err { color: #F2B8B5; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .status-err { color: #F2B8B5; } }

/* ---------- Envelope engine ---------- */
.stage-host { container-type: inline-size; width: 100%; }
.stage {
  --w: min(calc(100vw - 72px), 420px);
  --h: calc(var(--w) * 0.68);
  width: var(--w);
  margin-inline: auto;
  padding-top: calc(var(--h) * 0.18);
  transition: padding-top 0.6s ease 1.25s;
}
@supports (width: 1cqw) {
  .stage { --w: min(calc(100cqw - 24px), 420px); }
}
.stage.is-open { padding-top: calc(var(--h) * 0.66 + 34px); transition: padding-top 0.6s ease 0s; }
.stage.no-anim, .stage.no-anim * { transition: none !important; animation: none !important; }

.envelope { position: relative; width: var(--w); height: var(--h); }
.env-back {
  position: absolute; inset: 0; z-index: 0;
  background: var(--env-in); border-radius: 4px;
  box-shadow: 0 22px 44px rgba(10, 4, 14, 0.5), 0 4px 10px rgba(10, 4, 14, 0.3);
}
.env-back::after { content: ""; position: absolute; inset: 5% 5% 35% 5%; background: var(--liner); border-radius: 2px; }

.insert {
  position: absolute; left: 6%; bottom: 5%; width: 88%; height: 86%;
  z-index: var(--z);
  padding: 0; border: 0; border-radius: 3px;
  background: var(--paper); color: var(--card-ink);
  font: inherit; text-align: left; cursor: pointer; pointer-events: none;
  transform-origin: 50% 100%;
  transform: translateY(0) rotate(0deg);
  box-shadow: 0 -3px 10px rgba(40, 20, 35, 0.18);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.6, 1) 0s, opacity 0.3s ease;
}
.is-open .insert { transform: translateY(var(--rise)) rotate(var(--tilt)); transition: transform 0.85s cubic-bezier(0.2, 0.9, 0.25, 1) calc(1s + var(--i) * 0.12s); }
.is-settled .insert { pointer-events: auto; transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease; }
.is-settled .insert:hover, .is-settled .insert:focus-visible { transform: translateY(calc(var(--rise) - 5%)) rotate(var(--tilt)); }
.is-settled .insert.is-pulled { transform: translateY(-165%) rotate(var(--tilt)); opacity: 0; transition: transform 0.4s cubic-bezier(0.5, 0, 0.8, 0.4), opacity 0.25s ease 0.15s; }
.insert:focus-visible { outline: 2px solid #F3D3E0; outline-offset: 3px; }

.tab {
  position: absolute; bottom: calc(100% - 1px); left: var(--tab-x); width: var(--tab-w); height: 22px;
  display: grid; place-items: center; padding: 0 4px;
  background: var(--paper); border-radius: 7px 7px 0 0;
  font: 400 10.5px/1 var(--display); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--card-soft);
  box-shadow: 0 -3px 6px rgba(40, 20, 35, 0.12);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  opacity: 0; transition: opacity 0.2s ease 0.4s;
}
.is-open .tab { opacity: 1; transition: opacity 0.2s ease 0.9s; }
.insert-face { position: absolute; inset: 0; padding: 12px 16px; display: flex; flex-direction: column; gap: 1px; overflow: hidden; }
.insert-face::before { content: ""; position: absolute; inset: 6px; border: 1px solid var(--card-rule); border-radius: 2px; pointer-events: none; }
.insert-kicker { font: 400 9.5px/1.4 var(--display); letter-spacing: 0.18em; text-transform: uppercase; color: var(--card-accent); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.insert-line { font: 400 14px/1.3 var(--display); color: var(--card-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.insert-line.is-script { font: 400 23px/1.15 var(--script); color: var(--card-accent); }

.pocket { position: absolute; inset: 0; z-index: 10; pointer-events: none; }
.fold, .fold > i, .flap-shadow, .flap-shadow > i { position: absolute; inset: 0; display: block; }
.fold--left { filter: drop-shadow(1.5px 0 1.5px rgba(40, 20, 35, 0.3)); }
.fold--right { filter: drop-shadow(-1.5px 0 1.5px rgba(40, 20, 35, 0.3)); }
.fold--bottom { filter: drop-shadow(0 -2px 2px rgba(40, 20, 35, 0.26)); }
.fold--left > i { background: var(--env-side); clip-path: polygon(0 0, 53% 54%, 0 100%); border-radius: 0 0 0 4px; }
.fold--right > i { background: var(--env-side); clip-path: polygon(100% 0, 47% 54%, 100% 100%); border-radius: 0 0 4px 0; }
.fold--bottom > i { background: linear-gradient(to top, var(--env-bottom), var(--env)); clip-path: polygon(0 100%, 50% 42%, 100% 100%); border-radius: 0 0 4px 4px; }
.flap-shadow { filter: blur(3px); opacity: 1; transition: opacity 0.3s ease 1.1s; }
.flap-shadow > i { background: rgba(30, 15, 25, 0.3); clip-path: polygon(0 0, 100% 0, 50% 62%); }
.is-open .flap-shadow { opacity: 0; transition: opacity 0.25s ease 0.3s; }
.addressee {
  position: absolute; left: 6%; right: 6%; bottom: 10%; margin: 0;
  text-align: center; font: 400 calc(var(--w) * 0.075)/1.1 var(--script); color: var(--addr);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.addressee small { display: block; margin-top: 3px; font: 400 10px/1.2 var(--display); letter-spacing: 0.2em; text-transform: uppercase; color: var(--addr-sub); overflow: hidden; text-overflow: ellipsis; }

.flap {
  position: absolute; left: 0; top: 0; width: 100%; height: 58%; z-index: 11;
  transform-origin: 50% 0; transform-style: preserve-3d;
  transform: perspective(1100px) rotateX(0deg);
  transition: transform 0.7s cubic-bezier(0.45, 0, 0.2, 1) 0.45s, z-index 0s linear 0.8s;
  pointer-events: none;
}
.is-open .flap { transform: perspective(1100px) rotateX(180deg); z-index: 1; transition: transform 0.75s cubic-bezier(0.45, 0, 0.2, 1) 0.3s, z-index 0s linear 0.68s; }
.flap-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.flap-out { background: linear-gradient(to bottom, var(--flap-a), var(--flap-b)); clip-path: polygon(0 0, 100% 0, 50% 100%); }
.flap-in { transform: rotateX(180deg); background: var(--env-in); clip-path: polygon(0 100%, 100% 100%, 50% 0); }
.flap-in::after { content: ""; position: absolute; inset: 0; background: var(--liner); clip-path: polygon(8% 100%, 92% 100%, 50% 13%); }

.seal { position: absolute; z-index: 12; left: 50%; top: 58%; width: calc(var(--w) * 0.16); aspect-ratio: 1; transform: translate(-50%, -62%); pointer-events: none; }
.seal-inner { position: absolute; inset: 0; }
.seal-inner.stamp { animation: stamp 0.5s cubic-bezier(0.3, 0.7, 0.3, 1); }
@keyframes stamp { 0% { transform: scale(1.45); } 60% { transform: scale(0.93); } 100% { transform: scale(1); } }
.seal-half { position: absolute; inset: 0; transition: transform 0.45s cubic-bezier(0.3, 0.7, 0.3, 1) 1.25s, opacity 0.35s ease 1.25s; }
.seal-half--left { clip-path: polygon(-30% -30%, 54% -30%, 54% 0, 46% 40%, 55% 62%, 47% 100%, 47% 130%, -30% 130%); }
.seal-half--right { clip-path: polygon(54% -30%, 130% -30%, 130% 130%, 47% 130%, 47% 100%, 55% 62%, 46% 40%, 54% 0); }
.is-open .seal-half--left { transform: translate(-14px, 12px) rotate(-22deg); opacity: 0; transition: transform 0.5s cubic-bezier(0.3, 0.7, 0.3, 1) 0s, opacity 0.4s ease 0.12s; }
.is-open .seal-half--right { transform: translate(14px, 12px) rotate(22deg); opacity: 0; transition: transform 0.5s cubic-bezier(0.3, 0.7, 0.3, 1) 0s, opacity 0.4s ease 0.12s; }
.seal-disc {
  position: absolute; inset: 0; display: grid; place-items: center;
  border-radius: 47% 53% 51% 49% / 52% 46% 54% 48%;
  background: radial-gradient(circle at 36% 30%, color-mix(in srgb, var(--seal) 62%, white) 0%, var(--seal) 48%, color-mix(in srgb, var(--seal) 68%, black) 100%);
  box-shadow: inset 0 0 0 calc(var(--w) * 0.012) rgba(0, 0, 0, 0.14), inset 0 0 0 calc(var(--w) * 0.02) rgba(255, 255, 255, 0.07), 0 3px 7px rgba(20, 5, 12, 0.45);
  font-family: var(--script); line-height: 1; color: var(--seal-ink);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.22), 0 -1px 0 rgba(0, 0, 0, 0.25);
  white-space: nowrap;
}
.open-hit { position: absolute; inset: -8px; z-index: 20; border: 0; border-radius: 10px; background: transparent; cursor: pointer; }
.open-hit:focus-visible { outline: 2px solid #F3D3E0; outline-offset: 2px; }
.is-open .open-hit { display: none; }

.stage-bar { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-top: 16px; }
.stage-hint { margin: 0; font: 400 12px/1.4 var(--display); letter-spacing: 0.16em; text-transform: uppercase; color: var(--stage-muted); text-align: center; }
.stage-reseal { font: 400 11px var(--display); letter-spacing: 0.14em; text-transform: uppercase; color: var(--stage-ink); background: transparent; border: 1px solid rgba(239, 227, 234, 0.35); border-radius: 999px; padding: 7px 14px; cursor: pointer; }

/* ---------- Reader ---------- */
.reader { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px; padding-top: calc(16px + env(safe-area-inset-top, 0px)); padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
.reader-backdrop { position: absolute; inset: 0; background: rgba(22, 15, 26, 0.64); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); opacity: 0; transition: opacity 0.25s ease; }
.reader.is-visible .reader-backdrop { opacity: 1; }
.reader-card {
  color-scheme: light;
  position: relative; width: min(100%, 420px); min-height: min(540px, calc(100dvh - 32px)); max-height: calc(100dvh - 32px); overflow: auto;
  padding: 40px 28px 22px; border-radius: 4px;
  background: var(--paper); color: var(--card-ink);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
  opacity: 0; transform: translateY(-40px) scale(0.96);
  transition: transform 0.45s cubic-bezier(0.2, 0.9, 0.25, 1), opacity 0.3s ease;
  display: flex; flex-direction: column;
}
.reader.is-visible .reader-card { opacity: 1; transform: none; }
.reader-card::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--card-rule); border-radius: 2px; pointer-events: none; }
.reader-body { position: relative; flex: 1; font-family: var(--card); }
.close-x { position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; display: grid; place-items: center; border: 0; border-radius: 50%; background: transparent; color: var(--card-soft); font-size: 22px; line-height: 1; cursor: pointer; z-index: 1; }
.tuck { display: block; margin: 20px auto 0; padding: 8px 14px; border: 0; background: transparent; font: 400 12px var(--display); letter-spacing: 0.16em; text-transform: uppercase; color: var(--card-soft); cursor: pointer; }
.rc-center { text-align: center; }
.rc-kicker { margin: 0; font: 400 11px/1.5 var(--display); letter-spacing: 0.2em; text-transform: uppercase; color: var(--card-accent); }
.rc-title { margin: 6px 0 0; font: 400 24px/1.2 var(--display); letter-spacing: 0.03em; color: var(--card-ink); text-wrap: balance; }
.rc-name { margin: 8px 0 0; font: 400 52px/1.15 var(--script); color: var(--card-accent); overflow-wrap: anywhere; }
.rc-rule { width: 64px; height: 1px; background: var(--card-accent); opacity: 0.5; margin: 16px auto; }
.rc-msg { margin: 14px 0 0; font-size: 19px; line-height: 1.5; white-space: pre-line; overflow-wrap: anywhere; }
.rc-center .rc-msg { margin-top: 0; }
.rc-by { margin: 12px 0 0; font: 400 12px/1.4 var(--display); letter-spacing: 0.14em; text-transform: uppercase; color: var(--card-soft); }
.rsvp-form { display: grid; gap: 14px; margin-top: 18px; font-family: var(--card); }
.rsvp-form label, .rsvp-form legend { font: 400 11px var(--display); letter-spacing: 0.14em; text-transform: uppercase; color: var(--card-soft); padding: 0; }
.rsvp-form .f { display: grid; gap: 4px; }
.rsvp-form fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 8px; }
.rsvp-form input[type="text"], .rsvp-form select { width: 100%; padding: 6px 2px; border: 0; border-bottom: 1px solid color-mix(in srgb, var(--card-ink) 30%, transparent); border-radius: 0; background: transparent; color: var(--card-ink); font: 18px/1.3 var(--card); }
.rsvp-form textarea { width: 100%; min-height: 64px; padding: 8px 10px; border: 1px solid color-mix(in srgb, var(--card-ink) 25%, transparent); border-radius: 3px; background: rgba(255, 255, 255, 0.5); color: var(--card-ink); font: 17px/1.4 var(--card); resize: vertical; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; }
.choice input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.choice span { display: inline-block; padding: 7px 13px; border: 1px solid color-mix(in srgb, var(--card-ink) 28%, transparent); border-radius: 999px; font-size: 16px; cursor: pointer; background: rgba(255, 255, 255, 0.45); text-transform: none; letter-spacing: 0; font-family: var(--card); color: var(--card-ink); }
.choice input:checked + span { background: var(--card-accent); border-color: var(--card-accent); color: #FFFFFF; }
.choice input:focus-visible + span { outline: 2px solid var(--card-accent); outline-offset: 2px; }
.rsvp-send { width: 100%; padding: 11px 16px; border: 0; border-radius: 999px; background: var(--card-accent); color: #FFFFFF; font: 400 13px var(--display); letter-spacing: 0.14em; text-transform: uppercase; cursor: pointer; }
.rsvp-done { margin-top: 18px; text-align: center; font-size: 17px; }
.rsvp-done p:first-child { font: 400 34px/1.2 var(--script); color: var(--card-accent); margin: 0; }

@media (max-width: 880px) {
  .hero { grid-template-columns: minmax(0, 1fr); }
  .build-grid { grid-template-columns: minmax(0, 1fr); grid-template-areas: "preview" "panel"; }
  .builder.step-3 .build-grid { grid-template-areas: "panel" "preview"; }
  .preview { position: static; }
  .privacy-card { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) {
  .panel { padding: 16px; }
  .field-row { grid-template-columns: minmax(0, 1fr); }
  .stepper button { padding-right: 10px; font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  .stage, .stage *, .reader, .reader * { transition-duration: 0.01s !important; transition-delay: 0s !important; animation: none !important; }
}