.preview-main { padding: 1.2rem 0 2.2rem; }
.preview-shell {
  border: 1px solid rgba(29, 59, 144, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 28px rgba(15, 29, 58, 0.08);
  padding: 1.1rem;
}
.preview-head { margin-bottom: 1rem; }
.preview-head {
  border-radius: 14px;
  padding: 0.8rem;
}
.preview-cover-wrap {
  margin: 0.6rem 0 0.7rem;
  border-radius: 12px;
  overflow: hidden;
  background: #eef3fb;
}
.preview-cover-image {
  display: block;
  width: 100%;
  height: auto;
}
.back-link { color: #1d3b90; text-decoration: none; font-weight: 700; }
.preview-title { margin: 0.35rem 0 0.25rem; color: #1d3b90; }
.preview-subtitle { margin: 0; color: #56678d; }
.preview-form { display: grid; gap: 0.8rem; }
.form-page { display: none; gap: 0.6rem; }
.form-page.is-active { display: grid; grid-template-columns: repeat(100, minmax(0, 1fr)); align-content: flex-start; }
.preview-field { min-width: 0; }
.preview-field.is-hidden-cond { display: none !important; }
.preview-field.is-invalid label,
.preview-field.is-invalid fieldset {
  border-color: #d24a43;
  box-shadow: 0 0 0 2px rgba(210, 74, 67, 0.12);
}
.form-page label, .form-page fieldset {
  border: 1px solid #d8e3f4;
  border-radius: 12px;
  background: #fff;
  padding: 0.65rem;
  display: grid;
  gap: 0.45rem;
  color: #142654;
  font-weight: 600;
}
.form-page input, .form-page textarea, .form-page select {
  width: 100%;
  min-height: 40px;
  border: 1px solid #c9d8ef;
  border-radius: 10px;
  padding: 0.5rem 0.65rem;
  font: inherit;
}
.form-page textarea { min-height: 108px; resize: vertical; }
.field-warning {
  margin-top: 0.15rem;
  color: #b42318;
  font-size: 0.82rem;
  font-weight: 600;
}
.choice { display: inline-flex !important; align-items: center; gap: 0.5rem; border: 0 !important; padding: 0.2rem 0 !important; background: transparent !important; }
.choice input { width: auto; min-height: auto; }
.preview-divider { border-top: 2px dashed #9cb4df; margin: 0.35rem 0; }
.preview-custom-html { border: 1px dashed #b6c7e4; border-radius: 10px; background: #f8fbff; padding: 0.55rem; color: #314a79; }
.preview-custom-html pre { margin: 0; white-space: pre-wrap; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.84rem; }
.preview-actions {
  margin-top: 0.2rem;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  flex-wrap: wrap;
}
.page-indicator { font-weight: 700; color: #23428f; min-width: 72px; text-align: center; }
.page-empty { margin: 0; color: #65789f; }
.validation-toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 9999;
  width: min(420px, calc(100vw - 24px));
  border: 1px solid rgba(180, 35, 24, 0.35);
  border-radius: 12px;
  background: #fff6f5;
  color: #7a1f1a;
  box-shadow: 0 10px 26px rgba(32, 17, 17, 0.18);
  padding: 0.75rem 0.8rem;
  display: none;
}
.validation-toast.is-visible { display: block; }
.validation-toast-title { margin: 0 0 0.35rem; font-size: 0.9rem; font-weight: 800; }
.validation-toast-list { margin: 0; padding-left: 1.1rem; font-size: 0.84rem; }

@media (max-width: 900px) {
  .preview-main {
    padding: 0.9rem 0 1.4rem;
  }

  .container {
    width: min(1120px, calc(100% - 1rem));
  }

  .preview-shell {
    border-radius: 14px;
    padding: 0.8rem;
  }

  .preview-title {
    font-size: 1.25rem;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .form-page.is-active {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.55rem;
  }

  .preview-field {
    grid-column: 1 / -1 !important;
  }

  .preview-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .page-indicator {
    grid-column: 1 / -1;
    order: -1;
    text-align: left;
    min-width: 0;
  }

.preview-actions .btn {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 520px) {
  .preview-shell {
    padding: 0.7rem;
  }

  .form-page label,
  .form-page fieldset {
    padding: 0.55rem;
  }

  .form-page input,
  .form-page textarea,
  .form-page select {
    font-size: 16px;
  }

  .choice {
    align-items: flex-start;
  }
}

#preview-submit.btn {
  border-color: #0e7a3b;
  background: linear-gradient(180deg, #22a45a 0%, #0e7a3b 100%);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(14, 122, 59, 0.28);
}

#preview-submit.btn:hover {
  background: linear-gradient(180deg, #2ab562 0%, #117f40 100%);
}

#preview-submit.btn:focus-visible {
  outline: 3px solid rgba(34, 164, 90, 0.35);
  outline-offset: 2px;
}

.submit-success {
  display: none;
  border: 1px solid rgba(14, 122, 59, 0.24);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(236, 252, 243, 0.92), rgba(247, 255, 250, 0.96));
  padding: 1rem;
  box-shadow: 0 10px 24px rgba(14, 122, 59, 0.12);
  gap: 0.7rem;
}

.submit-success.is-visible {
  display: grid;
}

.submit-success-title {
  margin: 0;
  color: #0f6a35;
  font-size: 1.05rem;
  font-weight: 800;
}

.submit-success-text {
  margin: 0;
  color: #284c35;
}

.submit-success-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.submission-data {
  display: none;
  margin-top: 0.2rem;
  border: 1px solid #d8e3f4;
  border-radius: 12px;
  background: #fff;
  padding: 0.75rem;
}

.submission-data.is-visible {
  display: block;
}

.submission-data-title {
  margin: 0 0 0.6rem;
  color: #17397f;
  font-size: 0.96rem;
}

.submission-data-list {
  margin: 0;
  display: grid;
  gap: 0.45rem;
}

.submission-data-row {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(110px, 34%) minmax(0, 1fr);
  gap: 0.5rem;
}

.submission-data-key {
  color: #1d3b90;
  font-weight: 700;
}

.submission-data-value {
  color: #183056;
  word-break: break-word;
}

@media (max-width: 520px) {
  .submit-success-actions .btn {
    width: 100%;
  }

  .submission-data-row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}