/* ==========
   PDF TOOL WRAPPER
   ========== */

.container-img-pdf {
  max-width: 700px;
  margin: 20px auto;
  padding: 20px;
  background-color: var(--st-surface, #ffffff);
  border-radius: 10px;
  border: 1px solid var(--st-border, #e5e7eb);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.08);
}

/* Form area */
.form {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
  text-align: center;
}

/* Label */
.form label {
  font-size: 18px;
  margin-top: 10px;
  margin-bottom: 5px;
  font-weight: 700;
  color: var(--st-text-main, #111827);
}

/* File input */
.form input[type="file"] {
  display: block;
  margin-bottom: 20px;
  width: 100%;
  max-width: 320px;
  border-radius: 10px;
  border: 1px solid var(--st-border, #555);
  font-size: 16px;
  padding: 6px;
  background: var(--st-surface, #ffffff);
  color: var(--st-text-main, #111827);
}

/* File input button */
.form input[type="file"]::file-selector-button {
  margin-right: 20px;
  border: none;
  background: var(--st-accent, #38b6ff);
  padding: 10px 20px;
  border-radius: 10px;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease-in-out, transform 0.08s ease;
}

.form input[type="file"]::file-selector-button:hover {
  background: var(--st-accent-strong, #258862);
  transform: translateY(-1px);
}

/* Submit button */
.form .button {
  width: 100%;
  max-width: 320px;
  font-size: 18px;
  padding: 10px 20px;
  background-color: var(--st-accent, #38b6ff);
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.25s ease, transform 0.08s ease, box-shadow 0.25s;
}

.form .button:hover {
  background-color: var(--st-accent-strong, #258862);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.35);
}

/* ==========
   PREVIEW AREA
   ========== */

#preview-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

/* Thumbnails */
#preview-container img {
  max-width: 180px;
  max-height: 180px;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.10);
}

/* ==========
   RESPONSIVE
   ========== */

@media (max-width: 600px) {
  .container-img-pdf {
    margin: 10px;
    padding: 16px;
  }

  .form .button {
    font-size: 16px;
  }

  #preview-container img {
    max-width: 140px;
    max-height: 140px;
  }
}