/* =============================================================
   Byzantská komunita — chat na webe (assets/js/chat.js)
   Diskrétne tlačidlo vpravo dole; okno s atramentovou hlavičkou
   so znakom a krémovým telom, hranaté vlasové linky ako na webe.
   Do 559 px okno na celú obrazovku. Premenné sú zo site.css.
   ============================================================= */

.bkc {
  --bkc-edge: clamp(0.75rem, 0.35rem + 1.6vw, 1.75rem);
  --bkc-launcher-h: 3rem;
  --bkc-pad: 1.15rem;
  font-family: var(--font-text);
}
.bkc [hidden] { display: none !important; }
/* site.css na telefóne delí slová v odsekoch – v krátkych správach a adresách by rušilo */
.bkc p {
  -webkit-hyphens: manual;
  hyphens: manual;
}

.bkc-icon {
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* posledný riadok päty nesmie ostať natrvalo pod plávajúcim tlačidlom */
.site-footer { padding-bottom: 5.5rem; }

/* ---------- tlačidlo „Napíšte nám“ ---------- */
.bkc-launcher {
  position: fixed;
  right: var(--bkc-edge);
  bottom: calc(var(--bkc-edge) + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  height: var(--bkc-launcher-h);
  padding: 0 1.15rem 0 0.95rem;
  border: 1px solid rgba(196, 162, 102, 0.55);
  border-radius: 0;
  background: var(--ink);
  color: var(--on-ink);
  font: 500 0.72rem/1 var(--font-text);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 18px 36px -20px rgba(20, 17, 13, 0.75);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.bkc-launcher:hover { border-color: var(--gold); }
/* domovská stránka: kým je viditeľná úvodná fotografia, tlačidlo sa stiahne (neprekrýva jej odkazy);
   neprečítaná odpoveď alebo otvorený chat ho vždy ukážu */
.bkc--tucked:not(.has-unread):not(.is-open) .bkc-launcher {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s linear 0.3s;
}
.bkc-launcher .bkc-icon { color: var(--gold); }
/* zlatý prstenec + atramentový lem: viditeľné na tmavom aj svetlom podklade */
.bkc-launcher:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--gold), 0 0 0 4px var(--ink);
}
.bkc-launcher__badge {
  position: absolute;
  top: -0.6rem;
  right: -0.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35rem;
  height: 1.35rem;
  padding: 0 0.3rem;
  background: var(--gold);
  color: var(--ink);
  font: 600 0.7rem/1 var(--font-text);
  letter-spacing: 0;
  box-shadow: 0 0 0 2px var(--ink);
}

/* ---------- okno ---------- */
.bkc-panel {
  position: fixed;
  right: var(--bkc-edge);
  bottom: calc(var(--bkc-edge) + var(--bkc-launcher-h) + 0.75rem + env(safe-area-inset-bottom, 0px));
  z-index: 95;
  display: flex;
  flex-direction: column;
  width: min(25rem, calc(100vw - 2 * var(--bkc-edge)));
  height: min(38rem, calc(100vh - var(--header-h, 5rem) - var(--bkc-launcher-h) - 2 * var(--bkc-edge) - 1.75rem));
  height: min(38rem, calc(100dvh - var(--header-h, 5rem) - var(--bkc-launcher-h) - 2 * var(--bkc-edge) - 1.75rem));
  min-height: 18rem;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--cream);
  color: var(--on-cream);
  box-shadow: 0 40px 80px -40px rgba(20, 17, 13, 0.65), 0 2px 10px -4px rgba(20, 17, 13, 0.25);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
}
.bkc-panel.is-entering {
  opacity: 0;
  transform: translateY(0.75rem);
}
.bkc-panel :focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 2px;
}

/* hlavička: atrament, znak v zlate, zlatá vlasová linka */
.bkc-head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.95rem 0.6rem 0.95rem var(--bkc-pad);
  border-bottom: 1px solid var(--gold);
  background: var(--ink);
  color: var(--on-ink);
}
.bkc-head :focus-visible { outline-color: var(--gold); }
.bkc-head__emblem {
  width: 2.1rem;
  height: 2.1rem;
  color: var(--gold);
}
.bkc-head__text {
  flex: 1 1 auto;
  min-width: 0;
}
.bkc-head__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.15;
  color: var(--on-ink);
}
.bkc-head__status {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--on-ink-muted);
}
.bkc-dot {
  flex: none;
  width: 0.45rem;
  height: 0.45rem;
  border: 1px solid var(--on-ink-muted);
  border-radius: 50%;
}
.bkc.is-online .bkc-dot {
  border-color: var(--gold);
  background: var(--gold);
}
.bkc-close {
  position: relative;
  flex: none;
  align-self: flex-start;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: none;
  color: var(--on-ink-muted);
  cursor: pointer;
}
.bkc-close::before,
.bkc-close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 28%;
  width: 44%;
  height: 1px;
  background: currentColor;
  transform: rotate(45deg);
}
.bkc-close::after { transform: rotate(-45deg); }
.bkc-close:hover { color: var(--on-ink); }

/* telo: správy a úvodný formulár */
.bkc-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--bkc-pad) var(--bkc-pad) 0.75rem;
}
.bkc-log {
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.bkc-msg { max-width: 88%; }
.bkc-msg--admin { justify-self: start; }
.bkc-msg--visitor { justify-self: end; }
.bkc-msg__meta {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 0.3rem;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--on-cream-muted);
}
.bkc-msg--visitor .bkc-msg__meta { justify-content: flex-end; }
.bkc-msg__meta time { letter-spacing: 0.06em; }
.bkc-msg__text {
  padding: 0.65rem 0.85rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.bkc-msg--admin .bkc-msg__text {
  border-left: 1px solid var(--gold-line);
  background: var(--paper);
}
.bkc-msg--visitor .bkc-msg__text {
  background: var(--ink);
  color: var(--on-ink);
}
.bkc-msg--greeting .bkc-msg__text {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-style: italic;
  line-height: 1.45;
}
.bkc-msg__text a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.bkc-notice {
  margin-top: 1rem;
  padding-block: 0.7rem;
  border-block: 1px solid var(--rule-on-cream);
  font-family: var(--font-display);
  font-size: 1rem;
  font-style: italic;
  line-height: 1.45;
  color: var(--on-cream-muted);
}

.bkc-start {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--rule-on-cream);
}
.bkc-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}
.bkc-field {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  min-width: 0;
}
.bkc-label {
  font-family: var(--font-caps);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--on-cream);
}
.bkc-optional {
  margin-left: 0.35em;
  font-family: var(--font-text);
  font-size: 0.75rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--on-cream-muted);
}
.bkc-input {
  display: block;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--field-on-cream);
  border-radius: 0;
  background: var(--paper);
  color: var(--on-cream);
  font: 400 1rem/1.45 var(--font-text);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.bkc-input:hover { border-color: var(--on-cream-muted); }
.bkc .bkc-input:focus,
.bkc .bkc-input:focus-visible {
  outline: none;
  border-color: var(--gold-deep);
  box-shadow: 0 0 0 1px var(--gold-deep);
}
.bkc-input[aria-invalid="true"] { border-color: var(--danger-on-cream); }
.bkc-input--area {
  min-height: 6.5rem;
  resize: vertical;
}
.bkc-input::placeholder {
  color: var(--on-cream-muted);
  opacity: 0.85;
}
.bkc-hint,
.bkc-consent {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--on-cream-muted);
}
.bkc-hint:empty { display: none; }
.bkc-consent a {
  color: var(--on-cream);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
.bkc-error,
.bkc-field__error {
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--danger-on-cream);
}
.bkc-error:empty { display: none; }
.bkc-trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.bkc-submit {
  justify-self: start;
  min-height: 2.9rem;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--on-cream);
  border-radius: 0;
  background: var(--on-cream);
  color: var(--cream);
  font: 500 0.72rem/1.2 var(--font-text);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}
.bkc-submit:hover {
  background: transparent;
  color: var(--on-cream);
}
.bkc-submit:disabled,
.bkc-send:disabled {
  opacity: 0.55;
  cursor: progress;
}

/* odpoveď v rozhovore: pole a tlačidlo so šípkou */
.bkc-reply {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 0.35rem 0.5rem;
  padding: 0.75rem var(--bkc-pad);
  border-top: 1px solid var(--rule-on-cream);
}
.bkc-reply__input {
  max-height: 10rem;
  resize: none;
}
.bkc-send {
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--on-cream);
  border-radius: 0;
  background: var(--on-cream);
  color: var(--cream);
  cursor: pointer;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}
.bkc-send:hover {
  background: transparent;
  color: var(--on-cream);
}
.bkc-reply__error { grid-column: 1 / -1; }

.bkc-foot {
  display: flex;
  justify-content: flex-end;
  padding: 0 var(--bkc-pad) 0.7rem;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--on-cream-muted);
}
.bkc-foot__confirm {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: flex-end;
  gap: 0.3rem 0.85rem;
}
.bkc-link {
  padding: 0.3rem 0;
  border: 0;
  background: none;
  color: var(--on-cream-muted);
  font: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  cursor: pointer;
}
.bkc-link:hover { color: var(--on-cream); }

/* ---------- telefón: okno na celú obrazovku ---------- */
@media (max-width: 559px) {
  .bkc {
    --bkc-launcher-h: 2.75rem;
    --bkc-pad: 1rem;
  }
  .bkc-launcher {
    gap: 0.55rem;
    padding: 0 0.95rem 0 0.8rem;
    font-size: 0.68rem;
  }
  .bkc-panel {
    inset: 0;
    z-index: 160;
    width: 100%;
    height: 100%;
    min-height: 0;
    border: 0;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: none;
  }
  .bkc-panel.is-entering { transform: translateY(1.25rem); }
  .bkc-head { padding-top: calc(0.95rem + env(safe-area-inset-top, 0px)); }
  .bkc.is-open .bkc-launcher { display: none; }
}
@media (max-width: 379px) {
  .bkc-row { grid-template-columns: minmax(0, 1fr); }
}
html.bkc-locked,
html.bkc-locked body { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .bkc-launcher,
  .bkc-panel,
  .bkc-input,
  .bkc-submit,
  .bkc-send { transition: none; }
  .bkc-panel.is-entering { transform: none; }
}

@media print {
  .bkc { display: none !important; }
}