/* === PDF Watermark — Tool Styles === */

.pw-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

/* Hero */
.pw-hero {
  padding-top: 2.5rem;
  margin-bottom: 1.5rem;
}
.pw-hero h1 {
  font-size: clamp(1.75rem, 1rem + 3vw, 2.5rem);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-primary);
}
.pw-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Card */
.pw-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.pw-card--success {
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.05);
}
.pw-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 12px;
}

/* Drop zone */
.pw-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 2.25rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  user-select: none;
}
.pw-dropzone:hover,
.pw-dropzone:focus,
.pw-dropzone.pw-dragover {
  border-color: var(--accent);
  background: var(--accent-light);
  outline: none;
}
.pw-dropzone__inner {
  pointer-events: none;
}
.pw-dropzone__icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
}
.pw-dropzone__text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 12px;
}
.pw-dropzone__inner .pw-btn {
  pointer-events: auto;
}

/* File info */
.pw-file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-top: 12px;
}
.pw-file-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}
.pw-file-meta {
  flex: 1;
  min-width: 0;
}
.pw-file-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}
.pw-file-pages {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Tabs */
.pw-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}
.pw-tab {
  padding: 8px 16px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -1px;
}
.pw-tab:hover {
  color: var(--text-primary);
}
.pw-tab.pw-tab--active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Panels */
.pw-panel {
  margin-bottom: 14px;
}

/* Fields */
.pw-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 0;
}
.pw-field__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  gap: 8px;
}
.pw-field__hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
}
.pw-field input[type="text"],
.pw-field input[type="number"],
.pw-field input[type="file"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.875rem;
  box-sizing: border-box;
}
.pw-field input[type="color"] {
  width: 100%;
  height: 36px;
  padding: 2px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-card);
  cursor: pointer;
}
.pw-field input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.pw-range-value {
  font-size: 0.75rem;
  color: var(--text-primary);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* Rows */
.pw-row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

/* Fieldsets */
.pw-fieldset {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 0 0 14px;
}
.pw-fieldset legend {
  padding: 0 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.pw-position-grid,
.pw-pages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 12px;
}
.pw-radio {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
}
.pw-radio input[type="radio"] {
  accent-color: var(--accent);
}
.pw-page-range {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-top: 8px;
  box-sizing: border-box;
}
.pw-page-range:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Error */
.pw-error {
  padding: 10px 14px;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  font-size: 0.875rem;
  margin-bottom: 12px;
}

/* Actions */
.pw-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Buttons */
.pw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 22px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
}
.pw-btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.pw-btn--primary:hover:not(:disabled) {
  background: var(--accent-hover, #1d4ed8);
  border-color: var(--accent-hover, #1d4ed8);
}
.pw-btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.pw-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.pw-btn--ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* FAQ */
.pw-faq {
  margin-top: 2rem;
}
.pw-faq h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 14px;
}
.pw-faq__item {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 8px;
  overflow: hidden;
}
.pw-faq__item summary {
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.pw-faq__item summary::-webkit-details-marker { display: none; }
.pw-faq__item summary::after {
  content: '+';
  font-size: 1.1rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-left: 8px;
  transition: transform var(--transition);
}
.pw-faq__item[open] summary::after {
  transform: rotate(45deg);
}
.pw-faq__item p {
  padding: 0 16px 14px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Responsive */
@media (max-width: 600px) {
  .pw-row {
    flex-direction: column;
  }
  .pw-position-grid,
  .pw-pages-grid {
    grid-template-columns: 1fr;
  }
  .pw-actions {
    flex-direction: column;
  }
  .pw-btn {
    width: 100%;
  }
}