/* Shared brand patterns: section bar, date lockup, bands, marquee,
   lot cards, buttons, countdown, forms */

/* Red section-header bar — [■] FATHER JEROME TUPA AUCTION · SECTION NAME */
.section-bar {
  background: var(--tupa-red);
  color: #fff;
  padding-block: 0.9rem;
}
.section-bar__inner {
  width: min(100% - 2 * var(--gutter), var(--max-w));
  margin-inline: auto;
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.section-bar__brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.section-bar__label {
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.section-bar--blue { background: var(--tupa-blue); }
.section-bar--teal { background: var(--tupa-teal); }
.section-bar--ink  { background: var(--ink); }

/* Date lockup — 10 | 22 | 26 */
.date-lockup {
  display: inline-flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  font-family: var(--font-display);
  font-weight: 500;
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 48, "wght" 500;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 1;
  -webkit-font-smoothing: subpixel-antialiased;
  text-rendering: geometricPrecision;
}
.date-lockup > span { display: block; }
.date-lockup .rule {
  align-self: stretch;
  width: 2px;
  background: currentColor;
  opacity: 0.85;
}
.date-lockup--s { font-size: clamp(2rem, 4vw, 3rem); }
.date-lockup--s .rule { width: 1px; }

/* Translucent overlay bands (the signature treatment) */
.band {
  padding: clamp(1rem, 3vw, 2.5rem) var(--gutter);
  color: #fff;
}
.band--teal { background: var(--band-teal); }
.band--blue { background: var(--band-blue); }
.band--red  { background: var(--band-red); }

/* Quote marquee — red band, yellow letterspaced caps, CSS-only motion */
.marquee {
  background: var(--tupa-red);
  color: var(--tupa-yellow);
  overflow: hidden;
  padding-block: 1.1rem;
  white-space: nowrap;
}
.marquee__track {
  display: inline-flex;
  gap: 4rem;
  padding-right: 4rem;
  animation: marquee-scroll 72s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}
.marquee__item .sep { margin-inline: 2rem; }
@keyframes marquee-scroll {
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ------------------------------------------------------------ Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 0.9em 2em;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s var(--ease-out-expo);
}
.btn--red { background: var(--tupa-red); color: #fff; }
.btn--red:hover { background: #d42230; transform: translateY(-2px); }
.btn[aria-disabled="true"] {
  cursor: default;
  pointer-events: none;
  transform: none;
}
.btn--ink { background: var(--ink); color: var(--gallery); }
.btn--ink:hover { background: #000; transform: translateY(-2px); }
.btn--ghost {
  background: transparent;
  color: currentColor;
  box-shadow: inset 0 0 0 1.5px currentColor;
}
.btn--ghost:hover { background: var(--ink); color: var(--gallery); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn--block { display: flex; width: 100%; }

/* ----------------------------------------------------------- Lot card */

.lot-card {
  display: block;
  text-decoration: none;
  color: inherit;
}
.lot-card__frame {
  overflow: hidden;
  background: var(--linen);
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
}
.lot-card__frame img {
  width: 100%; height: 100%;
  /* Show the whole work — never crop a painting to fit the frame */
  object-fit: contain;
  transition: transform 0.6s var(--ease-out-expo);
}
.lot-card:hover .lot-card__frame img { transform: scale(1.03); }

/* Missing-image fallback: flat brand block with the title in display face */
.lot-card__placeholder, .lot-placeholder {
  width: 100%; height: 100%;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: var(--ink);
  color: var(--gallery);
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3.25rem);
  line-height: 0.95;
}

.lot-card__meta { padding-top: 1rem; }
.lot-card__number {
  font-size: var(--type-caption);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--tupa-red);
}
.lot-card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 28, "wght" 500;
  font-size: 1.75rem;
  line-height: 1.05;
  margin-top: 0.35rem;
  display: inline;
  -webkit-font-smoothing: subpixel-antialiased;
  text-rendering: geometricPrecision;
  background-image: linear-gradient(var(--tupa-yellow), var(--tupa-yellow));
  background-repeat: no-repeat;
  background-size: 0% 3px;
  background-position: 0 100%;
  transition: background-size 0.4s var(--ease-out-expo);
}
.lot-card:hover .lot-card__title { background-size: 100% 3px; }
.lot-card__caption { margin-top: 0.4rem; }

/* Horizontal snap rail (featured lots, "more from this sale") */
.rail {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-inline: var(--gutter);
  padding-bottom: 1.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--stone) transparent;
  cursor: grab;
}
.rail.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.rail > * {
  flex: 0 0 min(85%, 22rem);
  scroll-snap-align: start;
}
.rail .lot-card__frame { aspect-ratio: 3 / 4; }
.rail-cta {
  background: var(--tupa-red);
  color: #fff;
  display: grid;
  place-items: center;
  text-align: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1.1;
  padding: 2rem;
  transition: background-color 0.25s ease;
}
.rail-cta:hover { background: #d42230; }

/* ---------------------------------------------------- Countdown digits */

.countdown {
  display: flex;
  gap: clamp(0.6rem, 1.6vw, 1.25rem);
  align-items: flex-start;
}
.countdown__group { text-align: center; }
.countdown__digits { display: flex; }
.countdown__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.8;
}
.countdown__sep {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1;
  opacity: 0.6;
}
/* Odometer: each digit is a masked column of 0–9 */
.odo {
  display: block;
  overflow: hidden;
  height: 1em;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1;
  /* Avoid iOS text inflation shifting the 1em mask vs the column */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
.odo__col {
  display: block;
  transition: transform 0.55s var(--ease-out-expo);
  will-change: transform;
}
.odo__col span {
  display: block;
  height: 1em;
  line-height: 1;
}
@media (prefers-reduced-motion: reduce) {
  .odo__col { transition: none; }
}
/* Hide seconds on narrow viewports for the large (non-band) countdown */
.countdown__group--sec { display: none; }
@media (min-width: 48em) {
  .countdown__group--sec { display: block; }
}

/* Band variant: smaller digits so the timer fits a colour band inline.
   Always show seconds here — on iPhone the minute-only view looked frozen. */
.countdown--band {
  align-items: center;
  gap: clamp(0.35rem, 1.1vw, 0.9rem);
}
.countdown--band .countdown__group--sec { display: block; }
.countdown--band .odo,
.countdown--band .countdown__sep { font-size: clamp(1.25rem, 2.6vw, 2.125rem); }
.countdown--band .countdown__label {
  margin-top: 0.1rem;
  font-size: 0.5625rem;
  letter-spacing: 0.18em;
  opacity: 0.9;
}

/* --------------------------------------------- Black direction (R3/R4) */

/* Dark surface — content sections sit on near-black per the mockups */
.on-dark {
  background: var(--ink);
  color: var(--gallery);
}
.on-dark .caption { color: #A9A8A2; }
.on-dark .lot-card__number { color: var(--tupa-yellow); }
/* Transparent frame on dark pages: letterboxed images melt into the black */
.on-dark .lot-card__frame { background: transparent; }
.on-dark .lot-card__placeholder, .on-dark .lot-placeholder {
  box-shadow: inset 0 0 0 1px rgba(250, 250, 247, 0.18);
}
.on-dark .btn--ghost:hover {
  background: var(--gallery);
  color: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--gallery);
}
.on-dark .rail { scrollbar-color: rgba(250, 250, 247, 0.4) transparent; }

/* Full-width colour band that titles a dark section */
.head-band {
  background: var(--tupa-blue);
  color: #fff;
  padding: clamp(2rem, 4.5vw, 3.25rem) 0;
}
.head-band--red  { background: var(--tupa-red); }
.head-band--teal { background: var(--tupa-teal); }

/* -------------------------------------------------------------- Forms */

.field { display: grid; gap: 0.4rem; }
.field label { font-weight: 700; font-size: 0.875rem; letter-spacing: 0.04em; }
.field input[type="text"], .field input[type="email"], .field input[type="tel"],
.field input[type="number"], .field select, .field textarea {
  border: 1.5px solid rgba(20, 20, 20, 0.35);
  background: #fff;
  padding: 0.8em 1em;
  border-radius: 0;
  width: 100%;
}
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: 2px solid var(--tupa-blue);
  outline-offset: 0;
  border-color: var(--tupa-blue);
}
.field.has-error input { border-color: var(--tupa-red); }
.field__error {
  color: var(--tupa-red);
  font-size: 0.8125rem;
  font-weight: 500;
  min-height: 1.2em;
}
.checkbox {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.9375rem;
}
.checkbox input { width: 1.25rem; height: 1.25rem; margin-top: 0.15rem; accent-color: var(--tupa-red); }

/* ------------------------------------------------------ Sponsor wall */

.sponsor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem 4rem;
  align-items: center;
  justify-content: center;
}
.sponsor-row img {
  height: clamp(2.5rem, 5vw, 3.5rem);
  width: auto;
  filter: grayscale(1);
  opacity: 0.7;
  transition: filter 0.35s ease, opacity 0.35s ease;
}
.sponsor-row a:hover img, .sponsor-row a:focus-visible img { filter: none; opacity: 1; }

/* Sponsor wall row — large logos with red rules (Cause page, black direction) */
.sponsor-row--wall {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.75rem, 4vw, 3rem) 0;
}
.sponsor-row--wall a {
  display: grid;
  place-items: center;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}
.sponsor-row--wall img {
  height: clamp(2.5rem, 6vw, 4rem);
  max-width: 100%;
  object-fit: contain;
  opacity: 0.85;
}
@media (max-width: 59.999em) {
  .sponsor-row--wall a:nth-child(2n) { border-left: 3px solid var(--tupa-red); }
  /* An odd logo out centres across the pair rather than hanging left */
  .sponsor-row--wall a:last-child:nth-child(odd) { grid-column: 1 / -1; }
}
@media (min-width: 60em) {
  .sponsor-row--wall { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .sponsor-row--wall a + a { border-left: 3px solid var(--tupa-red); }
}

/* Partner wordmark set inline in a line of copy (e.g. "Dinner by [Bacio]") */
.inline-logo {
  display: inline-block;
  vertical-align: middle;
  line-height: 0;
  background-image: none;
}
.inline-logo img {
  height: 1.9em;
  width: auto;
  vertical-align: middle;
  transition: opacity 0.3s ease;
}
.inline-logo:hover img, .inline-logo:focus-visible img { opacity: 0.7; }
/* Knock the mark back to white where it sits on a saturated brand band */
.inline-logo--invert img { filter: brightness(0) invert(1); }

/* ------------------------------------------- Films about the work */

.films { margin-top: 1.75rem; }
.films[hidden] { display: none; }
.films__head {
  margin: 0 0 0.75rem;
  font-size: var(--type-caption);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tupa-yellow);
}
.films__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1rem;
}
.film-card {
  display: grid;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  background-image: none;
}
.film-card__frame {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #232320;
}
.film-card__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo), opacity 0.3s ease;
}
/* Play cue: a red disc with a white triangle punched out of it */
.film-card__play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2.75rem;
  height: 2.75rem;
  margin: -1.375rem 0 0 -1.375rem;
  border-radius: 50%;
  background: var(--tupa-red);
  transition: transform 0.4s var(--ease-out-expo), background-color 0.3s ease;
}
.film-card__play::after {
  content: "";
  position: absolute;
  left: 55%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 0.5rem 0 0.5rem 0.8rem;
  border-color: transparent transparent transparent #fff;
}
.film-card__text {
  display: grid;
  gap: 0.15rem;
  line-height: 1.35;
}
.film-card__source {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(250, 250, 247, 0.55);
}
.film-card__title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
}
.film-card:hover .film-card__frame img,
.film-card:focus-visible .film-card__frame img { transform: scale(1.05); }
.film-card:hover .film-card__play,
.film-card:focus-visible .film-card__play { transform: scale(1.12); }
.film-card:hover .film-card__title,
.film-card:focus-visible .film-card__title { color: var(--tupa-yellow); }

/* Tina's signature color pattern — full-bleed painting strip (splash + event) */
.color-pattern {
  line-height: 0;
  overflow: hidden;
  background: var(--ink);
}
.color-pattern img {
  width: 100%;
  height: clamp(4.5rem, 11vw, 8.5rem);
  object-fit: cover;
  object-position: center;
  display: block;
}

/* -------------------------------------------------------- Scroll cue */

.scroll-cue {
  width: 1px;
  height: 4.5rem;
  background: rgba(255, 255, 255, 0.35);
  position: relative;
  overflow: hidden;
}
.scroll-cue::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #fff;
  transform-origin: top;
  animation: cue-draw 2.2s var(--ease-out-expo) infinite;
}
@keyframes cue-draw {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-cue::after { animation: none; transform: none; }
}

/* Painting-crop full-bleed divider */
.divider-crop {
  height: clamp(10rem, 28vw, 18rem);
  background-size: cover;
  background-position: center;
}

/* --------------------------------------------- The printed invitation */

/* Homepage teaser: a linen envelope with the red card peeking out. */
.invite-opener {
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  padding-bottom: 0.5rem;
}
.invite-opener__mail {
  position: relative;
  flex: none;
  width: clamp(10.5rem, 22vw, 16.5rem);
  aspect-ratio: 1.12 / 1;
  perspective: 900px;
  filter: drop-shadow(0 14px 28px rgba(20, 20, 20, 0.22));
}
.invite-opener__flap {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 46%;
  background: linear-gradient(180deg, #f6f1e6 0%, #e6dece 100%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  transform: rotateX(-18deg);
  z-index: 3;
  transition: transform 0.5s var(--ease-out-expo);
}
.invite-opener__card {
  position: absolute;
  left: 16%;
  width: 68%;
  aspect-ratio: 1;
  bottom: 22%;
  z-index: 1;
  transform: rotate(-2.5deg) translateY(0);
  box-shadow: 0 8px 20px rgba(20, 20, 20, 0.22);
  transition: transform 0.5s var(--ease-out-expo);
}
.invite-opener__card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.invite-opener__pocket {
  position: absolute;
  inset: 32% 0 0;
  z-index: 2;
  background: linear-gradient(180deg, #efe8d8 0%, #e4dcc9 55%, #d9d0bb 100%);
  border: 1px solid rgba(20, 20, 20, 0.08);
  box-shadow: inset 0 12px 18px rgba(20, 20, 20, 0.06);
}
.invite-opener__badge {
  position: absolute;
  right: -0.45rem;
  bottom: -0.45rem;
  z-index: 4;
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  box-shadow: 0 6px 16px rgba(20, 20, 20, 0.3);
  transition: background-color 0.3s ease, transform 0.5s var(--ease-out-expo);
}
.invite-opener:hover .invite-opener__flap,
.invite-opener:focus-visible .invite-opener__flap {
  transform: rotateX(-52deg);
}
.invite-opener:hover .invite-opener__card,
.invite-opener:focus-visible .invite-opener__card {
  transform: rotate(-1deg) translateY(-10px);
}
.invite-opener:hover .invite-opener__badge,
.invite-opener:focus-visible .invite-opener__badge {
  background: var(--tupa-red);
  transform: scale(1.08);
}
.invite-opener__text { display: grid; gap: 0.4rem; }
.invite-opener__label {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.15;
  background-image: linear-gradient(var(--tupa-red), var(--tupa-red));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: 0 100%;
  padding-bottom: 0.14em;
  transition: background-size 0.3s var(--ease-out-expo);
}
.invite-opener:hover .invite-opener__label,
.invite-opener:focus-visible .invite-opener__label { background-size: 100% 2px; }
.invite-opener__hint {
  font-size: var(--type-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
}
.on-dark .invite-opener__hint { color: rgba(255, 255, 255, 0.65); }

/* Viewer overlay */
.invite-viewer {
  position: fixed;
  inset: 0;
  z-index: 180;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
}
.invite-viewer[hidden] { display: none; }
.invite-viewer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.5s ease;
}
.invite-viewer.is-open .invite-viewer__backdrop { opacity: 1; }
.invite-viewer__inner {
  position: relative;
  width: min(100%, 42rem);
  display: grid;
  justify-items: center;
  gap: clamp(1rem, 2.5vw, 1.75rem);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.6s var(--ease-out-expo);
}
.invite-viewer[data-stage="booklet"] .invite-viewer__inner { width: min(100%, 36rem); }
.invite-viewer.is-open .invite-viewer__inner { opacity: 1; transform: none; }
.invite-viewer__title { color: var(--tupa-yellow); margin: 0; }
.invite-viewer__hint {
  margin: 0.75rem 0 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--type-caption);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.invite-stage { width: 100%; min-width: 0; max-width: 100%; }
.invite-stage[hidden] { display: none; }

/* Envelope inside the overlay — click (or wait) to draw the card */
.mail {
  appearance: none;
  display: block;
  width: min(100%, 22rem);
  aspect-ratio: 1.12 / 1;
  margin-inline: auto;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  position: relative;
  perspective: 1100px;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.45));
}
.mail__flap {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 48%;
  background: linear-gradient(180deg, #f6f1e6 0%, #e6dece 100%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  z-index: 3;
  transition: transform 1s var(--ease-out-expo);
}
.mail__card {
  position: absolute;
  left: 18%;
  width: 64%;
  aspect-ratio: 1;
  bottom: 20%;
  z-index: 1;
  transition: transform 0.9s var(--ease-out-expo);
}
.mail__card img { display: block; width: 100%; height: 100%; object-fit: cover; }
.mail__pocket {
  position: absolute;
  inset: 34% 0 0;
  z-index: 2;
  background: linear-gradient(180deg, #efe8d8 0%, #e4dcc9 55%, #d9d0bb 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.invite-viewer.is-unsealing .mail__flap { transform: rotateX(-168deg); }
.invite-viewer.is-unsealing .mail__card { transform: translateY(-18%); }

/* The card swings open on its left edge, then turns over on click */
.invite-viewer__stage {
  width: 100%;
  max-width: calc(100vh - 14rem);
  max-width: calc(100svh - 14rem);
  margin-inline: auto;
  perspective: 1800px;
}
.invite-viewer__hinge { transform-style: preserve-3d; transform-origin: left center; }
.invite-viewer[data-stage="card"].is-open .invite-viewer__hinge {
  animation: invite-swing 1.1s var(--ease-out-expo) both;
}
@keyframes invite-swing {
  from { transform: rotateY(-102deg); }
  to   { transform: rotateY(0deg); }
}
.invite-viewer__card {
  position: relative;
  aspect-ratio: 1;
  transform-style: preserve-3d;
  transition: transform 0.9s var(--ease-out-expo);
}
.invite-viewer.is-flipped .invite-viewer__card { transform: rotateY(180deg); }
.invite-viewer__face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  backface-visibility: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}
.invite-viewer__face--back { transform: rotateY(180deg); }

/* Zig-zag booklet — one fold at a time, like opening the accordion */
.zigzag { width: 100%; min-width: 0; overflow: hidden; }
.zigzag__viewport {
  --panel: min(100%, calc(100svh - 18rem), 28rem);
  width: var(--panel);
  max-width: 100%;
  min-width: 0;
  margin-inline: auto;
  overflow: hidden;
  touch-action: pan-y;
}
.zigzag__strip {
  display: flex;
  width: max-content;
  transform: translateX(calc(var(--i, 0) * -1 * var(--panel)));
  transition: transform 0.7s var(--ease-out-expo);
}
.zigzag__strip[hidden] { display: none; }
.zigzag__panel {
  flex: none;
  width: var(--panel);
  margin: 0;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.zigzag__panel img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  /* contain, not cover: the folds are now cropped to the artwork itself and
     no longer share one aspect ratio, so nothing may be trimmed again */
  object-fit: contain;
  background: #111;
}
.zigzag__nav {
  display: flex;
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.1rem;
  max-width: 100%;
}
.zigzag__count {
  margin: 0;
  min-width: 4.5ch;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.08em;
}

.invite-viewer__controls {
  display: flex;
  /* Sit above the card/booklet drop shadow so lit buttons stay evenly lit */
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}
.invite-viewer__controls .btn--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}
.invite-viewer__controls .btn--ghost:hover,
.invite-viewer__controls .btn--ghost:focus-visible {
  background: #fff;
  color: var(--ink);
  border-color: #fff;
}
.invite-viewer__controls [hidden] { display: none; }
.invite-viewer__close {
  position: absolute;
  top: clamp(0.5rem, 2vw, 1.5rem);
  right: clamp(0.5rem, 2vw, 1.5rem);
  z-index: 1;
  appearance: none;
  background: none;
  border: 0;
  padding: 0.25rem 0.5rem;
  font-size: 2.25rem;
  line-height: 1;
  color: #fff;
  cursor: pointer;
  transition: color 0.3s ease, transform 0.3s var(--ease-out-expo);
}
.invite-viewer__close:hover, .invite-viewer__close:focus-visible {
  color: var(--tupa-red);
  transform: scale(1.1);
}

@media (max-width: 36em) {
  .invite-opener { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .invite-opener__flap, .invite-opener__card, .invite-opener__badge,
  .invite-viewer__backdrop, .invite-viewer__inner, .invite-viewer__card,
  .mail__flap, .mail__card, .zigzag__strip {
    transition: none;
  }
  .invite-viewer[data-stage="card"].is-open .invite-viewer__hinge { animation: none; }
  .invite-opener:hover .invite-opener__flap { transform: none; }
}

/* Lit buttons — always filled so guests can see they are clickable;
   hover only deepens the fill rather than being the first hint. */
.invite-viewer .btn--lit,
.zigzag__nav .btn {
  background: #fff;
  color: var(--ink);
  box-shadow: none;
}
.invite-viewer .btn--lit:hover, .invite-viewer .btn--lit:focus-visible,
.zigzag__nav .btn:hover, .zigzag__nav .btn:focus-visible {
  background: var(--tupa-yellow);
  color: var(--ink);
}
.zigzag__nav .btn { min-width: 9.5rem; }
.zigzag__nav .btn:disabled,
.zigzag__nav .btn:disabled:hover {
  background: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.65);
  cursor: default;
  transform: none;
}
.zigzag__arrow { font-size: 1.25em; line-height: 1; }

/* Floating step arrows — always lit, on every stage, so guests can see how
   to move through the invitation without hovering to discover it */
.invite-arrow {
  position: absolute;
  top: 50%;
  z-index: 1;
  width: 3.75rem;
  height: 3.75rem;
  margin-top: -1.875rem;
  border: 0;
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  font-size: 1.85rem;
  line-height: 1;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: background 0.3s ease, transform 0.3s var(--ease-out-expo);
}
.invite-arrow--prev { left: clamp(0.75rem, 3vw, 3rem); }
.invite-arrow--next { right: clamp(0.75rem, 3vw, 3rem); }
.invite-arrow:hover, .invite-arrow:focus-visible {
  background: var(--tupa-yellow);
  transform: scale(1.08);
}
.invite-arrow:disabled,
.invite-arrow:disabled:hover {
  background: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.65);
  cursor: default;
  transform: none;
  box-shadow: none;
}
@media (min-width: 48em) {
  .invite-arrow { display: inline-flex; }
}

/* Embedded video player (Vimeo / YouTube) - 16:9, fills its column */
.video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
  background: #232320;
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}