/* =====================================================================
   Booking form (s7-book): the real enquiry card. Cream paper, wine ink,
   champagne gold underlines, a gold "Send" pill. Every rule is scoped
   under .bk so it drops into the V4 page next to site.css. The site
   tokens (--wine, --ff-serif ...) are used when present, with the same
   values as fallbacks so the card also stands alone (demo.html).
   ===================================================================== */
.bk {
  --bk-paper: #efe8da;
  --bk-paper-lo: #e6dcc8;
  --bk-wine: var(--wine, #580e11);
  --bk-wine-deep: var(--wine-deep, #3e0a0c);
  --bk-ink: var(--ink, #2b211a);
  --bk-ink-soft: rgba(43, 33, 26, 0.76);
  --bk-gold: var(--champagne, #d3c181);
  --bk-gold-hi: var(--gold-hi, #efe2b0);
  --bk-gold-lo: var(--gold-lo, #a88c45);
  --bk-gold-text: #6e5822;
  --bk-error: #9b1c1c;
  --bk-display: var(--ff-display, "Italiana", "Cormorant Garamond", serif);
  --bk-script: var(--ff-script, "Pinyon Script", cursive);
  --bk-serif: var(--ff-serif, "Cormorant Garamond", Georgia, serif);
  --bk-sans: var(--ff-sans, "Jost", system-ui, sans-serif);
  --bk-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --bk-pad-x: clamp(22px, 6vw, 68px);

  position: relative;
  box-sizing: border-box;
  width: min(100%, 680px);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 60px) var(--bk-pad-x) clamp(32px, 5vw, 52px);
  color: var(--bk-ink);
  color-scheme: light;
  text-align: left;
  border-radius: 4px;
  /* CSS paper; booking.js swaps in TEX.paper() (the s7 scene's paper) when textures.js is on the page */
  background:
    radial-gradient(130% 100% at 28% 18%, rgba(255, 251, 242, 0.45) 0%, rgba(255, 251, 242, 0) 55%, rgba(120, 92, 52, 0.14) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.42 0 0 0 0 0.32 0 0 0 0 0.2 0 0 0 0.1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
    linear-gradient(180deg, var(--bk-paper), var(--bk-paper-lo));
  box-shadow:
    0 28px 60px rgba(20, 2, 4, 0.55),
    0 3px 8px rgba(20, 2, 4, 0.35);
}

.bk *,
.bk *::before,
.bk *::after {
  box-sizing: border-box;
}

.bk :where(h2, h3, p) {
  margin: 0;
  padding: 0;
}

.bk [hidden] {
  display: none !important;
}

/* thin gold frame inside the paper, as on the s7 card */
.bk::before {
  content: "";
  position: absolute;
  inset: clamp(10px, 1.8vw, 18px);
  border: 1px solid rgba(168, 140, 69, 0.55);
  pointer-events: none;
}

/* dry run marker (localhost or ?formtest): nothing is sent */
.bk[data-dry-run="true"]::after {
  content: "Test mode \00B7  nothing is sent";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bk-wine-deep);
  color: var(--bk-gold-hi);
  font: 500 10px/1 var(--bk-sans);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---- head ------------------------------------------------------------ */
.bk-head {
  position: relative;
  text-align: center;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.bk-kicker {
  font: 500 12px/1 var(--bk-sans);
  letter-spacing: 0.5em;
  padding-left: 0.5em;
  text-transform: uppercase;
  color: var(--bk-ink-soft);
}

.bk-title {
  margin: 18px 0 2px;
  font: 400 clamp(38px, 6.4vw, 60px) / 1 var(--bk-display);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--bk-wine);
  text-shadow: 0 1px 0 rgba(255, 252, 242, 0.8);
}

.bk-sig {
  font: 400 clamp(34px, 5.4vw, 50px) / 1.15 var(--bk-script);
  color: var(--bk-wine);
}

.bk-lede {
  max-width: 30em;
  margin: 10px auto 0;
  font: italic 400 clamp(18px, 2.2vw, 20px) / 1.45 var(--bk-serif);
  color: var(--bk-ink-soft);
}

.bk[data-state="sent"] .bk-lede {
  display: none;
}

/* ---- fields ----------------------------------------------------------- */
.bk-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: 6px clamp(24px, 4vw, 40px);
}

/* bottom-aligned, so underlines in one row line up when a label wraps */
.bk-field {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
}

.bk-field--wide {
  grid-column: 1 / -1;
}

/* label, input, line and error share rows across the two columns, so
   the underlines stay level whatever wraps above or below them */
@supports (grid-template-rows: subgrid) {
  .bk-grid {
    row-gap: 0;
  }

  .bk-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: subgrid;
    grid-row: span 4;
    justify-content: normal;
  }

  .bk-label {
    align-self: end;
  }
}

.bk-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  font: 500 11px/1.4 var(--bk-sans);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--bk-ink-soft);
  transition: color 0.25s;
}

.bk-hint {
  font: italic 400 15px/1.2 var(--bk-serif);
  letter-spacing: 0;
  text-transform: none;
  color: var(--bk-ink-soft);
}

.bk-input {
  display: block;
  width: 100%;
  min-height: 48px;
  margin: 2px 0 0;
  padding: 8px 4px 6px;
  border: 0;
  border-radius: 2px 2px 0 0;
  background: transparent;
  color: var(--bk-ink);
  font: 500 22px/1.25 var(--bk-serif);
  -webkit-appearance: none;
  appearance: none;
  /* transparent outline keeps a focus ring in forced-colors mode */
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: background-color 0.25s;
}

.bk-input:focus {
  background: rgba(211, 193, 129, 0.2);
}

.bk-field:focus-within .bk-label {
  color: var(--bk-wine);
}

.bk-input::placeholder {
  color: rgba(43, 33, 26, 0.45);
  font-style: italic;
  font-weight: 400;
}

.bk-input[type="date"] {
  min-width: 0;
  cursor: text;
}

.bk-input::-webkit-date-and-time-value {
  text-align: left;
}

.bk-input::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0.75;
  /* black glyph to wine */
  filter: invert(9%) sepia(55%) saturate(5200%) hue-rotate(345deg) brightness(80%);
}

.bk-input[type="number"] {
  -moz-appearance: textfield;
}

.bk-input[type="number"]::-webkit-inner-spin-button,
.bk-input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.bk-input--area {
  min-height: 104px;
  resize: vertical;
  font-size: 20px;
  line-height: 1.4;
}

/* underline: hairline, gold when filled, wine while focused, red when wrong */
.bk-line {
  position: relative;
  display: block;
  height: 1px;
  background: rgba(43, 33, 26, 0.26);
}

.bk-line::before,
.bk-line::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.6s var(--bk-ease);
}

.bk-line::before {
  top: -1px;
  height: 2.5px;
  background: linear-gradient(90deg, #a88c45, #efe2b0 45%, #d3c181 70%, #a88c45);
}

.bk-line::after {
  top: -1px;
  height: 2px;
  background: var(--bk-wine);
  transition-duration: 0.35s;
}

.bk-field.is-filled .bk-line::before,
.bk-field:focus-within .bk-line::after,
.bk-field.is-invalid .bk-line::after {
  transform: scaleX(1);
}

.bk-field.is-invalid .bk-line::after {
  background: var(--bk-error);
}

.bk-field.is-invalid .bk-label {
  color: var(--bk-error);
}

.bk-error {
  min-height: 1.45em;
  margin: 7px 0 10px;
  font: 400 13.5px/1.45 var(--bk-sans);
  color: var(--bk-error);
}

.bk-error:not(:empty)::before {
  content: "!";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--bk-error);
  color: #fff;
  font: 600 11px/1 var(--bk-sans);
  vertical-align: 1px;
}

/* spam trap: off screen, out of the tab order, ignored by screen readers */
.bk-trap {
  position: absolute !important;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.bk-sr {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---- send ------------------------------------------------------------- */
.bk-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: clamp(14px, 2.4vw, 22px);
  text-align: center;
}

.bk-send {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 214px;
  min-height: 54px;
  padding: 0 34px 0 calc(34px + 0.5em);
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: linear-gradient(180deg, #e6d79f 0%, #d3c181 55%, #bfa964 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 250, 228, 0.8),
    inset 0 -1px 0 rgba(120, 92, 40, 0.35),
    0 4px 10px rgba(88, 14, 17, 0.25);
  color: var(--bk-wine);
  font: 500 14px/1 var(--bk-sans);
  letter-spacing: 0.5em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s var(--bk-ease), box-shadow 0.2s var(--bk-ease);
}

/* the glint that sweeps the pill in the s7 scene */
.bk-send::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -45%;
  width: 40%;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0) 0%, rgba(255, 252, 238, 0.6) 50%, rgba(255, 255, 255, 0) 100%);
  transition: left 0.7s var(--bk-ease);
  pointer-events: none;
}

.bk-send:hover {
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 250, 228, 0.8),
    inset 0 -1px 0 rgba(120, 92, 40, 0.35),
    0 8px 18px rgba(88, 14, 17, 0.3);
}

.bk-send:hover::before {
  left: 105%;
}

.bk-send:active {
  transform: translateY(1px);
}

.bk-send:focus-visible,
.bk-copy:focus-visible,
.bk-fine a:focus-visible {
  outline: 2px solid var(--bk-wine);
  outline-offset: 4px;
}

.bk[data-state="sending"] .bk-send {
  cursor: progress;
  transform: none;
}

.bk-spin {
  display: none;
  width: 15px;
  height: 15px;
  border: 2px solid rgba(88, 14, 17, 0.25);
  border-top-color: var(--bk-wine);
  border-radius: 50%;
  animation: bk-spin 0.8s linear infinite;
}

.bk[data-state="sending"] .bk-spin {
  display: inline-block;
}

@keyframes bk-spin {
  to {
    transform: rotate(360deg);
  }
}

.bk-fine,
.bk-note {
  max-width: 34em;
  font: 400 13px/1.55 var(--bk-sans);
  color: var(--bk-ink-soft);
}

.bk-fine a {
  color: var(--bk-wine);
  text-underline-offset: 3px;
}

.bk-note {
  margin: 18px auto 0;
  padding-top: 14px;
  border-top: 1px solid rgba(168, 140, 69, 0.45);
  text-align: center;
}

/* ---- error: say so, keep the data, give the address ------------------- */
.bk-fail {
  margin-top: 22px;
  padding: 16px 18px 18px;
  border: 1px solid rgba(155, 28, 28, 0.3);
  border-left: 3px solid var(--bk-error);
  background: rgba(255, 251, 243, 0.6);
  font: 400 15px/1.55 var(--bk-sans);
  color: var(--bk-ink);
}

.bk-fail-title {
  margin-bottom: 4px;
  font: 600 20px/1.3 var(--bk-serif);
  color: var(--bk-error);
}

.bk-mailrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 12px;
}

.bk-mail {
  font: 600 20px/1.3 var(--bk-serif);
  color: var(--bk-wine);
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
  cursor: text;
}

.bk-copy {
  min-height: 40px;
  padding: 0 16px 0 calc(16px + 0.3em);
  border: 1px solid var(--bk-gold-lo);
  border-radius: 999px;
  background: rgba(239, 226, 176, 0.35);
  color: var(--bk-wine);
  font: 500 11px/1 var(--bk-sans);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.2s;
}

.bk-copy:hover {
  background: rgba(239, 226, 176, 0.75);
}

/* ---- thank you (mirrors the s7 finale) -------------------------------- */
.bk-thanks {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 0 10px;
  text-align: center;
  animation: bk-rise 0.8s var(--bk-ease) both;
}

.bk-seal {
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, #8a222a, #580e11 60%, #3e0a0c);
  box-shadow:
    inset 0 0 0 5px rgba(62, 10, 12, 0.55),
    inset 0 0 0 7px rgba(239, 226, 176, 0.28),
    0 4px 8px rgba(20, 0, 2, 0.45);
  color: var(--bk-gold-hi);
  font: 400 40px/1 var(--bk-script);
  animation: bk-stamp 0.55s var(--bk-ease) 0.1s both;
}

.bk-thanks-title {
  margin: 6px 0 12px;
  padding: 0 0.2em;
  font: 400 clamp(60px, 11vw, 92px) / 1.2 var(--bk-script);
  color: var(--bk-wine);
  outline: none;
  animation: bk-write 1.3s var(--bk-ease) 0.35s both;
}

.bk-reply {
  font: 400 clamp(20px, 3.4vw, 28px) / 1.1 var(--bk-display);
  letter-spacing: 0.3em;
  padding-left: 0.3em;
  text-transform: uppercase;
  color: var(--bk-ink);
}

.bk-rule {
  display: block;
  width: 150px;
  height: 1px;
  margin: 22px 0 16px;
  background: linear-gradient(90deg, rgba(168, 140, 69, 0), #a88c45 50%, rgba(168, 140, 69, 0));
}

.bk-thanks-mail {
  font: 500 14px/1.4 var(--bk-sans);
  letter-spacing: 0.24em;
  color: var(--bk-gold-text);
  overflow-wrap: anywhere;
}

@keyframes bk-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

@keyframes bk-stamp {
  from {
    opacity: 0;
    transform: scale(1.6) rotate(-14deg);
  }
}

@keyframes bk-write {
  from {
    clip-path: inset(-30% 100% -30% -5%);
  }
  to {
    clip-path: inset(-30% -5% -30% -5%);
  }
}

/* ---- phone ------------------------------------------------------------ */
@media (max-width: 600px) {
  .bk-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .bk-input {
    font-size: 21px;
  }

  .bk-send {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bk *,
  .bk *::before,
  .bk *::after {
    animation: none !important;
    transition: none !important;
  }
}