/* Khal & Silvie · Black or White · theme (PIEL) · BL-02
   Una plancha de esgrafiado que se vuelve estampa revelada: raspar, barrer, revelar.
   Pliegos: negativo (tinta) = gate, hero, counter, historia, itinerario, regalos, captura, footer;
            positivo (papel) = dedicatoria, familia, ubicaciones, vestimenta, rsvp, secreto.
   La tinta vive en <main> (textura continua); los pliegos negativos son transparentes.
   url() siempre directo en la regla, nunca dentro de custom properties. */

/* ── Materia: tinta y papel con textura real ───────────── */
html, body { background: #0A0A0B url('../../assets/page/bl-ink.webp'); }
body { font-optical-sizing: auto; font-kerning: normal; }
#invitation-content,
#gate,
#kc-footer { background: #0A0A0B url('../../assets/page/bl-ink.webp'); }

#dedicatoria, #familia, #ubicaciones, #vestimenta, #rsvp, #secreto {
  --kc-canvas: var(--bl-paper);
  --kc-surface: var(--bl-paper-2);
  --kc-ink: var(--bl-ink);
  --kc-ink-muted: var(--bl-graphite-on-paper);
  --kc-accent: var(--bl-ink);
  --kc-on-accent: var(--bl-paper);
  --kc-line: var(--bl-rule-on-paper);
  --kc-field-line: var(--bl-graphite-on-paper);
  --kc-focus: var(--bl-ink);
  --kc-error: var(--bl-ink);
  --bl-thread-from: var(--bl-paper);
  --bl-thread-to: var(--bl-ink);
  background: #F3F3F0 url('../../assets/page/bl-paper.webp');
}
#counter, #historia, #itinerario, #regalos, #captura, #kc-footer {
  --bl-thread-from: var(--bl-ink);
  --bl-thread-to: var(--bl-paper);
}

.kc-section,
.kc-hero,
.kc-footer { position: relative; color: var(--kc-ink); text-align: center; }

/* ── Voz tipográfica ───────────────────────────────────── */
h1, h2, h3 {
  font-family: var(--kc-font-display);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.012em;
  color: var(--kc-ink);
}
.kc-eyebrow {
  font-family: var(--bl-font-ui);
  font-size: var(--kc-text-eyebrow);
  font-weight: 500;
  letter-spacing: var(--kc-tracking-eyebrow);
  text-transform: uppercase;
  color: var(--kc-ink-muted);
  margin-bottom: var(--kc-space-4);
}
.kc-title { font-size: var(--kc-text-title); margin-bottom: var(--kc-space-6); }
.kc-body { color: var(--kc-ink); max-width: 34ch; margin-inline: auto; text-wrap: pretty; }

/* ── Botones: placas rectas que se invierten al presionar ── */
.kc-gate__open,
.kc-captura__cta,
.kc-rsvp-submit,
.kc-map-link,
.kc-registry a,
.kc-photo-stack__next,
.bl-garden__nav,
.kc-bank button[data-kc-copy] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 var(--kc-space-5);
  border: 1px solid currentColor;
  border-radius: 0;
  background: transparent;
  color: var(--kc-ink);
  font-family: var(--bl-font-ui);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color 220ms var(--kc-ease), color 220ms var(--kc-ease), opacity 220ms var(--kc-ease);
  -webkit-tap-highlight-color: transparent;
}
@media (hover: hover) {
  .kc-gate__open:hover,
  .kc-map-link:hover,
  .kc-rsvp-submit:hover,
  .bl-garden__nav:hover:not(:disabled),
  .kc-registry a:hover { background: var(--kc-ink); color: var(--kc-canvas); }
}
.kc-gate__open:active,
.kc-map-link:active,
.kc-rsvp-submit:active,
.bl-garden__nav:active:not(:disabled),
.kc-registry a:active { background: var(--kc-ink); color: var(--kc-canvas); }
:focus-visible { outline: 2px solid var(--kc-focus); outline-offset: 4px; }

/* ── El hilo: una sola línea que cose los pliegos ──────── */
.kc-section::before,
.kc-footer::before {
  content: "";
  position: absolute;
  z-index: 2;
  top: calc(-1 * var(--bl-thread-reach, 2.75rem));
  left: 50%;
  width: 1px;
  height: calc(2 * var(--bl-thread-reach, 2.75rem));
  margin-left: -0.5px;
  background: linear-gradient(to bottom, var(--bl-thread-from) 50%, var(--bl-thread-to) 50%);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--bl-thread-duration) var(--kc-ease);
  pointer-events: none;
}
.kc-section:has(.is-revealed)::before,
.kc-footer:has(.appeared)::before { transform: none; }

/* ── Estampa: foto B/N con huella de lámina ────────────── */
.bl-print,
.kc-story__photo {
  position: relative;
  margin: 0;
  padding: 11px;
  background: #F3F3F0 url('../../assets/page/bl-paper.webp');
  box-shadow: 0 1px 0 rgba(10, 10, 11, 0.06), 0 22px 36px -26px rgba(0, 0, 0, 0.75);
}
.bl-print::after,
.kc-story__photo::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid var(--bl-plate-mark);
  box-shadow: 1px 1px 0 rgba(255, 255, 255, 0.7);
  pointer-events: none;
}
.kc-story__photo { aspect-ratio: auto; overflow: visible; }
.bl-print img,
.kc-story__photo img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; }
.bl-print:empty { display: none; }
.bl-print img[src$="bl-historia-6.webp"] { object-position: 36% 50%; }
.bl-print img[src$="bl-historia-4.webp"] { object-position: 82% 50%; }
.bl-print img[src$="bl-secreto.webp"] { object-position: 50% 62%; }
/* las estampas no suben: se tiran de la prensa */
.bl-print[data-reveal] {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1100ms var(--kc-ease);
}
.bl-print[data-reveal].is-revealed { clip-path: inset(-40px -40px -60px -40px); }

/* ── Gate · plancha de esgrafiado ──────────────────────── */
#gate { padding: 0; place-items: stretch; color: var(--bl-paper); }
.kc-gate__scene canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.kc-gate__scene::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 10, 11, 0.92) 0%, rgba(10, 10, 11, 0) 24%, rgba(10, 10, 11, 0) 72%, rgba(10, 10, 11, 0.94) 86%);
}
.kc-gate__body {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-rows: auto auto 1fr auto auto;
  justify-items: center;
  gap: 0;
  padding:
    calc(env(safe-area-inset-top) + clamp(2.4rem, 8svh, 4.5rem)) 16px
    calc(env(safe-area-inset-bottom) + clamp(1.5rem, 4.5svh, 2.6rem));
  transition: opacity 250ms var(--kc-ease);
}
.kc-gate__body > .kc-eyebrow { grid-row: 1; color: var(--bl-graphite-on-ink); margin-bottom: var(--kc-space-3); }
.kc-gate__name {
  grid-row: 2;
  font-family: var(--kc-font-display);
  font-style: italic;
  font-size: clamp(2.9rem, 1.4rem + 8vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
}
.kc-gate__date {
  grid-row: 4;
  margin-bottom: var(--kc-space-4);
  font-family: var(--bl-font-ui);
  font-size: 0.74rem;
  letter-spacing: 0.32em;
}
.kc-gate__open {
  grid-row: 5;
  min-width: 15rem;
  min-height: 52px;
  background: #0A0A0B;
  color: var(--bl-paper);
  font-family: var(--kc-font-display);
  font-style: italic;
  font-size: 1.12rem;
  letter-spacing: 0.02em;
  text-transform: none;
}
.kc-gate[data-gate-state="opening"] { opacity: 1; transition: none; }
.kc-gate[data-gate-state="opening"] .kc-gate__body { opacity: 0; }

/* ── Hero · n5 a sangre, revelado desde el papel ───────── */
#hero {
  overflow: hidden;
  align-content: end;
  padding: 0 0 calc(env(safe-area-inset-bottom) + clamp(2.6rem, 7svh, 4.8rem));
}
.kc-hero__photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  aspect-ratio: auto;
}
.kc-hero__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 46% 28%; }
#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to bottom, rgba(10, 10, 11, 0.35) 0%, rgba(10, 10, 11, 0) 18%, rgba(10, 10, 11, 0) 46%, rgba(10, 10, 11, 0.78) 70%, #0A0A0B 90%);
  pointer-events: none;
}
#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  background: #F3F3F0 url('../../assets/page/bl-paper.webp');
  pointer-events: none;
}
.kc-hero .kc-container { gap: 0; }
.kc-hero .kc-container > :not(.kc-hero__photo) { position: relative; z-index: 2; }
.kc-hero__title:focus { outline: none; } /* foco programático del core al abrir: encabezado, no control */
.kc-hero .kc-eyebrow { margin-bottom: var(--kc-space-2); }
.kc-hero__title {
  font-style: italic;
  font-size: var(--kc-text-hero);
  line-height: 0.95;
  margin-bottom: var(--kc-space-3);
}
.kc-hero .kc-body { max-width: 30ch; font-size: 0.98rem; color: var(--kc-ink-muted); margin-bottom: var(--kc-space-4); }
.kc-hero__date { font-family: var(--bl-font-ui); font-size: 0.76rem; letter-spacing: 0.32em; }
.kc-hero__place:empty { display: none; }
/* La transición de entrada se conduce desde la piel del proyecto. */
.is-gate-open .kc-hero__photo img { animation: bl-develop 2200ms var(--kc-ease) both; }
.is-gate-open .kc-hero .kc-container > * { animation: bl-rise 900ms var(--kc-ease) both; }
.is-gate-open .kc-hero .kc-container > :nth-child(2) { animation-delay: 900ms; }
.is-gate-open .kc-hero .kc-container > :nth-child(3) { animation-delay: 1000ms; }
.is-gate-open .kc-hero .kc-container > :nth-child(4) { animation-delay: 1120ms; }
.is-gate-open .kc-hero .kc-container > :nth-child(5) { animation-delay: 1220ms; }
@keyframes bl-develop {
  from { filter: contrast(0.5) brightness(1.4); }
  to { filter: contrast(1) brightness(1); }
}
@keyframes bl-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@media (min-width: 64rem) {
  .kc-hero .kc-container { max-width: 72rem; justify-items: start; text-align: left; }
  .kc-hero .kc-body { margin-inline: 0; }
  .kc-hero__photo img { object-position: 50% 30%; }
}

/* ── Dedicatoria · arco de papel, compacta ─────────────── */
#dedicatoria {
  border-radius: var(--bl-arch);
  padding-top: calc(var(--kc-section-pad) * 0.8 + clamp(1rem, 5vw, 2.5rem));
}
.bl-signature {
  margin-top: var(--kc-space-5);
  font-family: var(--kc-font-display);
  font-style: italic;
  font-size: clamp(1.35rem, 1.1rem + 1.2vw, 1.75rem);
  letter-spacing: 0.01em;
}
.bl-signature::before { content: ""; display: block; width: 2.5rem; height: 1px; margin: 0 auto var(--kc-space-4); background: var(--kc-ink); opacity: 0.5; }
.kc-dedication {
  max-width: 32ch;
  margin-inline: auto;
  font-size: clamp(1.12rem, 1rem + 0.5vw, 1.3rem);
  line-height: 1.6;
  text-wrap: pretty;
}

/* ── Counter · dígitos grabados en tinta ───────────────── */
.bl-counter-date {
  margin: calc(-1 * var(--kc-space-4)) 0 var(--kc-space-6);
  font-family: var(--bl-font-ui);
  font-size: 0.74rem;
  letter-spacing: 0.32em;
  color: var(--kc-ink-muted);
}
#counter-pending { font-style: italic; }
.kc-countdown { gap: 0; max-width: 30rem; margin-inline: auto; }
.kc-countdown__unit { gap: var(--kc-space-2); padding-block: var(--kc-space-1); }
.kc-countdown__unit + .kc-countdown__unit { border-left: 1px solid var(--kc-line); }
.kc-countdown__value {
  font-family: var(--kc-font-display);
  font-size: clamp(2.7rem, 1.7rem + 5.4vw, 4.8rem);
  font-variant-numeric: lining-nums tabular-nums;
  line-height: 1;
}
.kc-countdown__label {
  font-family: var(--bl-font-ui);
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--kc-ink-muted);
}
.kc-countdown__status { margin-top: var(--kc-space-5); font-style: italic; color: var(--kc-ink-muted); }
.kc-countdown__status:empty { display: none; }

/* ── Familia · silencio ────────────────────────────────── */
#familia .kc-body {
  max-width: 24ch;
  font-style: italic;
  font-size: clamp(1.35rem, 1.15rem + 1vw, 1.8rem);
  line-height: 1.38;
}

/* ── Historia · carril horizontal + jardín esgrafiado ──── */
#historia { padding-bottom: 0; }
.bl-garden { position: relative; margin-top: var(--kc-space-2); --bl-card: min(76vw, 19rem); --bl-garden-h: clamp(11rem, 32svh, 16rem); }
.bl-garden__rail {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.bl-garden__rail::-webkit-scrollbar { display: none; }
.bl-garden__rail:focus-visible { outline: 2px solid var(--kc-focus); outline-offset: -4px; }
.bl-garden__track {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: clamp(1.5rem, 6vw, 3rem);
  width: max-content;
  padding: var(--kc-space-2) max(16px, calc((100vw - var(--bl-card)) / 2)) var(--bl-garden-h);
}
.bl-garden__ink { position: absolute; left: 0; bottom: 0; z-index: 0; height: var(--bl-garden-h); pointer-events: none; } /* el jardín vive solo bajo las tarjetas */
.bl-garden__track > .kc-story,
.bl-garden__track > .bl-print { position: relative; z-index: 1; flex: 0 0 auto; width: var(--bl-card); scroll-snap-align: center; }
.bl-garden__track > .kc-story { margin: 0; gap: 0; }
.kc-story__item { justify-items: center; gap: var(--kc-space-3); }
.kc-story__year:empty { display: none; }
.kc-story__item h3 { font-style: italic; font-size: clamp(1.6rem, 1.35rem + 1.2vw, 2.1rem); margin-top: var(--kc-space-4); }
.kc-story__item p { max-width: 26ch; color: var(--kc-ink-muted); }
.bl-garden__track > .bl-print:nth-of-type(odd) { margin-top: clamp(1.5rem, 8vw, 3rem); }
.bl-garden__nav {
  position: absolute;
  z-index: 3;
  top: calc(var(--bl-card) * 0.62);
  width: 48px;
  min-width: 48px;
  padding: 0;
  background: #0A0A0B;
  color: var(--bl-paper);
  font-family: var(--kc-font-display);
  font-size: 1.6rem;
  letter-spacing: 0;
  transform: translateY(-50%);
}
.bl-garden__nav[data-dir="-1"] { left: max(8px, env(safe-area-inset-left)); }
.bl-garden__nav[data-dir="1"] { right: max(8px, env(safe-area-inset-right)); }
.bl-garden__nav:disabled { opacity: 0; pointer-events: none; }

/* ── Ubicaciones · placas de tinta bajo otro arco ──────── */
#ubicaciones {
  border-radius: var(--bl-arch);
  padding-top: calc(var(--kc-section-pad) * 0.8 + clamp(1rem, 5vw, 2.5rem));
}
#ubicaciones .kc-container { max-width: 52rem; }
.kc-locations { gap: var(--kc-space-5); }
.kc-location {
  --kc-canvas: var(--bl-ink);
  --kc-ink: var(--bl-paper);
  --kc-ink-muted: var(--bl-graphite-on-ink);
  --kc-focus: var(--bl-paper);
  position: relative;
  justify-items: center;
  align-content: start;
  gap: var(--kc-space-2);
  padding: var(--kc-space-7) var(--kc-space-5) var(--kc-space-6);
  background: #0A0A0B url('../../assets/page/bl-ink.webp');
  color: var(--bl-paper);
}
.kc-location::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--bl-rule-on-ink);
  pointer-events: none;
}
.kc-location h3 { color: var(--bl-paper); font-size: clamp(1.8rem, 1.5rem + 1.2vw, 2.3rem); margin-block: var(--kc-space-1) var(--kc-space-2); }
.kc-location__photo:empty,
.kc-location__address:empty,
.kc-location__time:empty { display: none; }
.kc-location__title {
  font-family: var(--bl-font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bl-graphite-on-ink);
}
.kc-location__address { max-width: 26ch; font-size: 0.95rem; color: var(--bl-graphite-on-ink); }
.kc-location__time { font-style: italic; font-size: 1.5rem; margin-bottom: var(--kc-space-3); }
.kc-location .kc-map-link {
  position: relative;
  z-index: 1;
  justify-self: stretch;
  width: 100%;
  max-width: 17rem;
  margin-inline: auto;
  margin-top: var(--kc-space-2);
  background: var(--bl-paper);
  color: var(--bl-ink);
}
.kc-location .kc-map-link + .kc-map-link { background: transparent; color: var(--bl-paper); }

/* ── Itinerario · una marca sobre el hilo ──────────────── */
.kc-schedule { justify-items: center; }
.kc-stop { grid-template-columns: 1fr; justify-items: center; gap: var(--kc-space-2); }
.kc-stop::before {
  content: "";
  width: 11px;
  height: 11px;
  border: 1px solid var(--kc-ink);
  border-radius: 50%;
  margin-bottom: var(--kc-space-3);
}
.kc-stop__time { font-family: var(--kc-font-display); font-style: italic; font-size: clamp(2.4rem, 1.9rem + 2.4vw, 3.4rem); line-height: 1; }
.kc-stop__label { font-family: var(--bl-font-ui); font-size: 0.74rem; letter-spacing: 0.3em; text-transform: uppercase; }

/* ── Vestimenta · atelier (BL-03c: lámina estática SVG) ── */
#vestimenta .kc-title { font-style: italic; font-size: clamp(3rem, 2rem + 5vw, 4.8rem); margin-bottom: var(--kc-space-4); }
.bl-atelier {
  display: block;
  width: 100%;
  max-width: 30rem;
  aspect-ratio: 6 / 5;
  margin: 0 auto var(--kc-space-5);
}
.bl-banned { display: flex; justify-content: center; gap: clamp(1.5rem, 6vw, 2.75rem); margin-top: var(--kc-space-6); }
.bl-banned__chip {
  display: grid;
  justify-items: center;
  gap: var(--kc-space-2);
  font-family: var(--bl-font-ui);
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--kc-ink-muted);
}
.bl-banned__chip i {
  position: relative;
  width: 2.9rem;
  height: 2.9rem;
  border-radius: 50%;
  background: var(--chip);
  box-shadow: 0 0 0 1px var(--bl-graphite-on-paper);
}
.bl-banned__chip i::after {
  content: "";
  position: absolute;
  left: -0.45rem;
  right: -0.45rem;
  top: 50%;
  height: 1.5px;
  background: var(--bl-ink);
  box-shadow: 0 0 0 1px var(--bl-paper);
  transform: rotate(-45deg);
}

/* ── Regalos · silencio ────────────────────────────────── */
#regalos .kc-body { max-width: 28ch; font-style: italic; font-size: clamp(1.3rem, 1.1rem + 1vw, 1.65rem); line-height: 1.42; }

/* ── KC-RSVP · sala de papel (slot listo para Diamond) ─── */
#rsvp .kc-container { max-width: 34rem; }
.kc-rsvp-deadline:has(#kc-rsvp-deadline:empty) { display: none; }
.kc-rsvp-form { text-align: left; }
.kc-rsvp-attendance legend {
  width: 100%;
  margin-bottom: var(--kc-space-3);
  font-family: var(--kc-font-display);
  font-style: italic;
  font-size: 1.4rem;
  text-align: center;
}
.kc-rsvp-attendance-face {
  padding: var(--kc-space-3) var(--kc-space-4);
  border: 1px solid var(--kc-field-line);
  font-family: var(--kc-font-display);
  font-size: 1.05rem;
  transition: background-color 220ms var(--kc-ease), color 220ms var(--kc-ease), border-color 220ms var(--kc-ease);
}
.kc-rsvp-attendance-option:has(input:checked) .kc-rsvp-attendance-face { background: var(--kc-ink); color: var(--kc-canvas); border-color: var(--kc-ink); }
.kc-rsvp-attendance-hint,
.kc-rsvp-decline-note,
.kc-rsvp-allocation-note { margin-top: var(--kc-space-3); font-size: 0.92rem; text-align: center; color: var(--kc-ink-muted); }
.kc-field label {
  font-family: var(--bl-font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--kc-ink-muted);
}
.kc-field input,
.kc-field select {
  padding: 0 var(--kc-space-1);
  border: 0;
  border-bottom: 1px solid var(--kc-field-line);
  border-radius: 0;
  background: transparent;
  font-family: var(--bl-font-ui);
}
.kc-field input::placeholder { color: var(--kc-ink-muted); opacity: 0.8; }
.kc-rsvp-submit { background: var(--kc-ink); color: var(--kc-canvas); }
.kc-rsvp-form :disabled { cursor: not-allowed; }
.kc-rsvp-form[inert] .kc-rsvp-fields { opacity: 0.42; }
.kc-rsvp-error:not([hidden]) {
  padding: var(--kc-space-3) var(--kc-space-4);
  border-left: 2px solid var(--kc-ink);
  font-family: var(--bl-font-ui);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.kc-rsvp-status:empty { display: none; }
.kc-rsvp-offline { margin-top: var(--kc-space-6); font-style: italic; font-size: 1.15rem; text-align: center; }

/* ── Captura · estado honesto ──────────────────────────── */
#captura .kc-body { color: var(--kc-ink-muted); margin-bottom: var(--kc-space-5); }
.kc-captura__cta { color: var(--kc-ink-muted); border-color: var(--kc-line); }
/* KC-Echoes: cámara de tinta y papel que levita */
.kc-echoes-cam { display: block; width: 170px; height: auto; margin: 0 auto var(--kc-space-5); overflow: visible; animation: kc-echoes-levita 4.6s ease-in-out infinite; }
@keyframes kc-echoes-levita { 0%, 100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-6px) rotate(1deg); } }
@media (prefers-reduced-motion: reduce) { .kc-echoes-cam { animation: none; } }

/* ── Secreto · el sello KS ─────────────────────────────── */
.kc-secret > summary { gap: var(--kc-space-4); }
.kc-secret__seal {
  position: relative;
  display: grid;
  place-items: center;
  width: 6.5rem;
  height: 6.5rem;
  border: 1px solid var(--kc-ink);
  border-radius: 50%;
  box-shadow: inset 0 0 0 6px var(--kc-canvas), inset 0 0 0 7px var(--kc-line);
  transition: background-color 260ms var(--kc-ease), color 260ms var(--kc-ease);
}
.kc-secret__seal::before {
  content: "B\2009L";
  font-family: var(--kc-font-display);
  font-style: italic;
  font-size: 1.9rem;
  line-height: 1;
}
.kc-secret > summary:active .kc-secret__seal,
.kc-secret[open] .kc-secret__seal { background: var(--kc-ink); color: var(--kc-canvas); }
.kc-secret__hint { font-family: var(--bl-font-ui); font-size: 0.7rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--kc-ink-muted); }
.kc-secret__card { margin-top: var(--kc-space-6); }
.kc-secret[open] .kc-secret__card { animation: bl-secret-in 900ms var(--kc-ease) both; }
.kc-secret__card .bl-print { max-width: 16rem; margin-bottom: var(--kc-space-6); }
.kc-secret__card .kc-title { font-style: italic; margin-bottom: var(--kc-space-4); }
.kc-secret__message { max-width: 28ch; margin-inline: auto; font-size: 1.2rem; line-height: 1.5; }
.kc-secret__signature { margin-top: var(--kc-space-4); font-style: italic; color: var(--kc-ink-muted); }
@keyframes bl-secret-in {
  from { opacity: 0; clip-path: inset(0 0 100% 0); }
  to { opacity: 1; clip-path: inset(0 0 -60px 0); }
}

/* ── Footer KC-Universe · el hilo se cierra en anillo ──── */
.kc-footer { color: var(--kc-footer-ink); }
.kc-footer__mark { font-family: var(--bl-font-ui); font-size: 0.74rem; letter-spacing: 0.3em; text-transform: uppercase; }
.kc-footer__icon { width: 1.15rem; height: 1.15rem; border: 1px solid currentColor; border-radius: 50%; }
.kc-footer p { font-size: 0.95rem; color: var(--kc-footer-muted); }
.kc-footer p:empty { display: none; }
.kc-footer p span { font-style: italic; color: var(--kc-footer-ink); }
.kc-footer__link { color: var(--kc-footer-ink); font-family: var(--bl-font-ui); font-size: 0.72rem; letter-spacing: 0.18em; text-decoration: none; }

/* ── Ring musical · el del Black or White original, en plata-papel ─ */
.kc-ring { color: var(--bl-paper); }
.kc-ring::before,
.kc-ring::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.kc-ring::before {
  inset: 0;
  z-index: -1;
  background: rgba(20, 20, 20, 0.85);
  border: 1px solid rgba(243, 243, 240, 0.25);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: border-color 400ms ease, transform 150ms ease, background-color 400ms ease;
}
.kc-ring::after {
  inset: -10px;
  z-index: -2;
  background: radial-gradient(circle, rgba(243, 243, 240, 0.14) 0%, transparent 70%);
  animation: bl-breath 3s ease-in-out infinite alternate;
}
.kc-ring__orbit {
  inset: -6px;
  border: 1px solid rgba(243, 243, 240, 0.45);
  box-shadow: 0 0 0 1px rgba(10, 10, 11, 0.35), inset 0 0 0 1px rgba(10, 10, 11, 0.25); /* se lee en tinta y en papel */
  animation-duration: 25s;
  transition: border-color 400ms ease;
}
.kc-ring__orbit::before {
  top: -3px;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  background: var(--bl-paper);
  box-shadow: 0 0 0 1px rgba(10, 10, 11, 0.55), 0 0 8px rgba(243, 243, 240, 0.85);
}
.kc-ring__letter { z-index: 2; padding-bottom: 6px; font-family: var(--kc-font-display); font-style: italic; font-size: 0.95rem; letter-spacing: 1px; }
.kc-ring__bars { z-index: 3; bottom: 7px; gap: 1.5px; }
.kc-bar { width: 2px; border-radius: 1px; background: var(--bl-paper); opacity: 0.8; }
.kc-ring[data-kc-state="paused"] .kc-ring__orbit { border-color: rgba(243, 243, 240, 0.1); }
.kc-ring[data-kc-state="paused"] .kc-bar { opacity: 0.2; }
.kc-ring[data-kc-state="paused"]::after { opacity: 0.15; animation-play-state: paused; }
@media (hover: hover) { .kc-ring:hover::before { border-color: rgba(243, 243, 240, 0.45); background: rgba(10, 10, 10, 0.95); } }
.kc-ring:active::before { transform: scale(0.92); }
@keyframes bl-breath {
  from { opacity: 0.4; transform: scale(0.9); }
  to { opacity: 0.8; transform: scale(1.15); }
}
.kc-music-toast {
  padding: var(--kc-space-3) var(--kc-space-4);
  border: 1px solid rgba(243, 243, 240, 0.25);
  background: rgba(20, 20, 20, 0.92);
  color: var(--bl-paper);
  font-family: var(--bl-font-ui);
  font-size: 0.8rem;
}

/* ── Reduced motion: misma ceremonia, sin movimiento ───── */
@media (prefers-reduced-motion: reduce) {
  .kc-section::before,
  .kc-footer::before { transform: none; transition: none; }
  .bl-print[data-reveal] { clip-path: none !important; transition: none !important; }
  #hero::before { display: none; }
  .is-gate-open .kc-hero__photo img,
  .is-gate-open .kc-hero .kc-container > * { animation: none; }
  .kc-secret[open] .kc-secret__card { animation: none; }
  .kc-ring::after { animation: none; }
}