/* Private preview of a draft (2.6): room.html?id=…&preview=… (js/preview.js).
   Only applies when js/preview.js adds .kts-preview to <html>; the public page is untouched.
   Phone first: owners open it from WhatsApp or LINE. */

.kts-preview {
  --preview-banner-h: 44px;
  --preview-bar-h: 150px;
}

.kts-preview body {
  padding-bottom: var(--preview-bar-h);
}

/* The strip stays on top instead of the header */
.kts-preview .site-header {
  position: static;
}

.kts-preview .room-contact {
  top: calc(var(--preview-banner-h) + 16px);
}

.preview-banner,
.preview-bar,
.preview-expired,
.preview-contact-note {
  font-family: var(--font-body), 'Noto Sans Thai', sans-serif;
}

/* ---------- Top strip ---------- */
.preview-banner {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-sizing: border-box;
  width: 100%;
  padding: 10px var(--gutter);
  background: var(--color-teal);
  color: var(--color-surface);
  box-shadow: var(--shadow-raised);
}

.preview-banner__text {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.preview-lang {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--color-white-14);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.preview-lang__sep {
  color: var(--color-white-40);
  font-size: 12px;
}

.preview-lang__option {
  border: 0;
  cursor: pointer;
  min-width: 40px;
  min-height: 32px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-surface);
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
}

.preview-lang__option--active {
  background: var(--color-surface);
  color: var(--color-teal-dark);
}

/* ---------- Contact buttons: shown, but off ---------- */
.room-contact__button--off,
.room-contact__button--off:hover,
.room-contact__button--off:disabled {
  background: var(--color-sand);
  color: var(--color-dot-neutral);
  cursor: not-allowed;
  opacity: 1;
  pointer-events: none;
}

.room-contact__button--off .icon {
  color: var(--color-dot-neutral);
}

.preview-contact-note {
  margin: -6px 0 0;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
}

/* ---------- Answer bar (fixed at the bottom) ---------- */
.preview-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 24px rgba(10, 76, 75, 0.12);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
}

.preview-bar__inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-bar__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
  text-align: center;
}

.preview-bar__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.preview-bar__button {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 50px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.preview-bar__button--publish {
  background: var(--color-teal);
  color: var(--color-surface);
  font-size: 16px;
  min-height: 54px;
}

.preview-bar__button--publish:hover { background: var(--color-teal-dark); }

.preview-bar__button--change {
  background: var(--color-teal-tint);
  color: var(--color-teal-dark);
}

.preview-bar__button--decline {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
}

.preview-bar__line {
  border: 0;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-teal);
  text-decoration: underline;
  padding: 2px;
}

.preview-bar__line--on { color: var(--color-green-dark); }

/* ---------- Expired link ---------- */
.preview-expired {
  box-sizing: border-box;
  max-width: 520px;
  margin: 48px auto 72px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.preview-expired__icon { font-size: 36px; }

.preview-expired__title {
  font-family: var(--font-heading), 'Noto Sans Thai', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.preview-expired__text {
  font-size: 15px;
  color: var(--color-muted);
}

.preview-expired__button {
  width: 100%;
  margin-top: 8px;
}

/* No answer bar on the expired page */
.kts-preview body:not(:has(.preview-bar)) { padding-bottom: 0; }

/* ---------- Phones ---------- */
@media (max-width: 600px) {
  .preview-banner {
    padding: 8px 16px;
    align-items: flex-start;
  }
  .preview-banner__text { font-size: 12.5px; }
  .preview-expired { margin: 24px 16px 48px; }
}