:root {
  --ink: #201a2b;
  --paper: #ffffff;
  --accent: #ff5d8f;
  --accent-2: #6ec6ff;
  --border: 4px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
}

/* ---- depth field: parallax + linked blur ---- */
.depth-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.depth-layer {
  position: absolute;
  inset: 0;
  will-change: transform;
}

/* Balloons from the front band in DEPTH_BANDS (script.js) land here — z-index
   must stay above .stage's (1) so they render in front of the text. */
.depth-field-front {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.depth-item {
  position: absolute;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: auto;
  touch-action: none;
  cursor: grab;
}

.depth-item.is-dragging {
  cursor: grabbing;
  transition: none;
}

/* Each balloon fades in independently once its own (possibly large) image
   file finishes loading — see buildDepthField in script.js. */
.depth-item.is-loaded {
  opacity: 1;
}

.depth-item img {
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

.depth-balloon img {
  height: auto;
}

@media (prefers-reduced-motion: reduce) {
  .depth-layer {
    transform: none !important;
    filter: none !important;
  }

  .depth-item {
    transition: none !important;
  }
}

/* ---- language toggle ---- */
.lang-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 10;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border: var(--border) solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

/* ---- stage: centered column, left-aligned text, sits above the depth field ---- */
/* pointer-events: none here (and re-enabled on the actual controls below) lets
   clicks/drags fall through to a back-band balloon behind the text, the same
   pattern .depth-field/.depth-field-front already use for their own containers. */
.stage {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  width: 80vw;
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
  text-align: left;
  pointer-events: none;
}

.stage button,
.stage input,
.stage textarea,
.stage a {
  pointer-events: auto;
}

.content {
  margin-top: 10rem;
}

.content p,
#headcount,
.guestbook-message {
  font-family: 'Momo Signature', cursive;
  font-size: clamp(1.75rem, 8vw, 90px);
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 10rem;
}

#headcount {
  margin: 0;
}

.details {
  margin-bottom: 3rem;
}

p {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 3.5rem;
}

.headcount-section {
  margin-bottom: 3rem;
}

.search-section {
  margin-bottom: 3rem;
}

.search-section h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 0 1rem;
}

.search-input {
  width: 100%;
  font: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 0.85rem 1rem;
  border: var(--border) solid var(--ink);
  border-radius: 0.75rem;
  background: #fff;
}

.search-result {
  font-weight: 600;
  margin-top: 0.75rem;
  min-height: 1.5em;
}

/* ---- form: as bold as the narrative ---- */
.form-section {
  margin-bottom: 3rem;
}

#showFormBtn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 10;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.is-hidden {
  display: none;
}

#signupDialog {
  position: fixed;
  inset: 0;
  margin: auto;
  border: none;
  padding: 0;
  background: transparent;
  max-width: min(90vw, 560px);
  max-height: 85vh;
  overflow: visible;
  pointer-events: auto;
}

#signupDialog::backdrop {
  background: rgba(32, 26, 43, 0.6);
  pointer-events: auto;
}

.dialog-close {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1;
  border: var(--border) solid var(--ink);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  z-index: 1;
}

#signupForm {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-height: 85vh;
  overflow-y: auto;
  border: var(--border) solid var(--ink);
  border-radius: 1.25rem;
  padding: 1.75rem;
  background: #fff;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.field input,
.field textarea {
  font: inherit;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.85rem 1rem;
  border: var(--border) solid var(--ink);
  border-radius: 0.75rem;
  background: var(--paper);
  resize: vertical;
}

.guests-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.guests-label {
  font-weight: 700;
  font-size: 1.05rem;
}

.guest-rows {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.guest-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.guest-name {
  flex: 1 1 140px;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.65rem 0.85rem;
  border: var(--border) solid var(--ink);
  border-radius: 0.6rem;
  background: var(--paper);
}

.type-toggle {
  display: flex;
  border: var(--border) solid var(--ink);
  border-radius: 0.6rem;
  overflow: hidden;
}

.type-btn {
  font: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.6rem 0.85rem;
  border: none;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.type-btn.is-active {
  background: var(--accent-2);
}

.remove-guest {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1;
  width: 2.25rem;
  height: 2.25rem;
  border: var(--border) solid var(--ink);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
}

.btn-add {
  align-self: flex-start;
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.6rem 1rem;
  border: var(--border) solid var(--ink);
  border-radius: 0.6rem;
  background: var(--paper);
  cursor: pointer;
}

.btn-submit {
  font: inherit;
  font-weight: 800;
  font-size: 1.35rem;
  padding: 1rem;
  border: var(--border) solid var(--ink);
  border-radius: 0.85rem;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.form-status {
  font-weight: 700;
  min-height: 1.5em;
  margin: 0;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- guestbook ---- */
.guestbook {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.guestbook-message {
  margin: 0 0 0.5rem;
}

.guestbook-author {
  font-family: 'Momo Signature', cursive;
  font-weight: 800;
  color: var(--accent);
  margin: 0;
}

.guestbook-empty {
  font-weight: 600;
}

@media (max-width: 480px) {
  .stage { padding: 4rem 1.1rem 5rem; }
  #signupForm { padding: 1.25rem; }
}