/* PDF Watermark Tool v1 */
.tool-page__content { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-6); align-items: start; }
.tool-right-col { display: flex; flex-direction: column; gap: var(--space-5); position: sticky; top: var(--space-4); }

.pw-ad { margin: var(--space-4) 0; text-align: center; overflow: hidden; }
.pw-ad__wrap { display: inline-block; max-width: 100%; overflow: hidden; }
.pw-ad--728 { display: block; } .pw-ad--300 { display: none; }
@media (max-width: 768px) { .pw-ad--728 { display: none; } .pw-ad--300 { display: block; } }
.pw-ad iframe { max-width: 100% !important; }
.pw-ad--sidebar { text-align: center; }
.pw-ad--result { margin: var(--space-4) 0; text-align: center; }

.pw-colors { display: flex; gap: 6px; }
.pw-color { flex: 1; padding: 8px; border: 2px solid transparent; border-radius: var(--radius-md); cursor: pointer; font-size: 12px; font-weight: 600; text-align: center; transition: all 0.15s; }
.pw-color:hover { opacity: 0.8; }
.pw-color.active { outline: 3px solid var(--primary-500); outline-offset: 2px; }

.pw-canvas { max-width: 100%; max-height: 400px; border: 1px solid var(--gray-200); border-radius: var(--radius-md); box-shadow: 0 2px 8px rgba(0,0,0,0.08); }

.pw-fulloverlay { position: fixed; inset: 0; z-index: 9999; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--space-4); }
.pw-fulloverlay.hidden { display: none; }
.pw-fulloverlay__content { background: var(--bg-primary); border-radius: var(--radius-xl); padding: var(--space-6) var(--space-5); text-align: center; max-width: 360px; width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,0.3); display: flex; flex-direction: column; align-items: center; gap: var(--space-3); }
.pw-fulloverlay__text { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.pw-fulloverlay__sub { font-size: 12px; color: var(--text-tertiary); }
.pw-ad--processing { margin-top: var(--space-4); }
.pw-spinner { width: 32px; height: 32px; border: 3px solid var(--gray-200); border-top-color: var(--primary-500); border-radius: 50%; animation: pw-spin 0.8s linear infinite; }
@keyframes pw-spin { to { transform: rotate(360deg); } }

.tc-breadcrumb { font-size: var(--text-xs); color: var(--text-tertiary); margin-bottom: var(--space-4); }
.tc-breadcrumb a { color: var(--text-tertiary); text-decoration: none; } .tc-breadcrumb a:hover { color: var(--primary-600); }
.tc-breadcrumb span { margin: 0 var(--space-1); } .tc-breadcrumb span:last-child { color: var(--text-primary); font-weight: 500; }
.tc-header { display: flex; align-items: flex-start; gap: var(--space-4); margin-bottom: var(--space-6); }
.tc-header__icon { flex-shrink: 0; margin-top: 2px; color: var(--primary-600); }
.tc-header__title { font-size: var(--text-2xl); font-weight: 700; margin: 0 0 var(--space-1); }
.tc-header__desc { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; line-height: 1.5; }
.tc-actions { padding: 12px; display: flex; gap: 8px; background: var(--bg-secondary); border-top: 1px solid var(--gray-100); }
.tc-actions .btn { flex: 1; font-size: 12px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.tc-actions .btn svg { flex-shrink: 0; }
.tc-note { margin-top: var(--space-4); padding: 10px 14px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 12px; color: var(--text-tertiary); line-height: 1.5; display: flex; align-items: flex-start; gap: 8px; }
.tc-note svg { flex-shrink: 0; margin-top: 1px; }
#btn-apply { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
#btn-apply svg { flex-shrink: 0; }
.tc-result { max-width: 480px; margin: 0 auto; padding: var(--space-6); }
.tc-result__header { text-align: center; margin-bottom: var(--space-6); }
.tc-result__icon { margin-bottom: var(--space-2); color: var(--success); }
.tc-result__title { font-size: var(--text-xl); font-weight: 700; color: var(--success); margin: 0 0 var(--space-2); }
.tc-result__meta { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; }
.tc-result__file { display: flex; align-items: center; gap: 12px; padding: var(--space-4); background: var(--bg-tertiary); border-radius: var(--radius-lg); margin-bottom: var(--space-4); border: 1px solid var(--gray-100); }
.tc-result__file-icon { flex-shrink: 0; color: var(--text-tertiary); }
.tc-result__filename { font-weight: 600; font-size: 14px; word-break: break-all; }
.tc-result__filesize { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.tc-result__rename { margin-bottom: var(--space-4); }
.tc-result__rename label { font-size: 12px; font-weight: 600; color: var(--text-secondary); display: block; margin-bottom: 6px; }
.tc-result__rename input { width: 100%; padding: 10px 12px; border: 1.5px solid var(--gray-200); border-radius: var(--radius-md); font-size: 14px; background: var(--bg-primary); box-sizing: border-box; }
.tc-result__rename input:focus { outline: none; border-color: var(--primary-400); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.tc-result__actions { display: flex; gap: 10px; margin-bottom: var(--space-4); }
.tc-result__actions .btn { flex: 1; text-align: center; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.tc-result__actions .btn svg { flex-shrink: 0; }
.tc-related { padding-top: var(--space-4); border-top: 1px solid var(--gray-100); }
.tc-related__title { font-size: 11px; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-3); }
.tc-related__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tc-related__grid a { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 10px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 13px; font-weight: 500; color: var(--text-secondary); text-decoration: none; border: 1px solid transparent; }
.tc-related__grid a svg { flex-shrink: 0; }
.tc-related__grid a:hover { background: var(--primary-50); color: var(--primary-700); border-color: var(--primary-200); }
.tc-faq { display: flex; flex-direction: column; gap: var(--space-3); }
.tc-faq details { background: var(--bg-secondary); border-radius: var(--radius-lg); border: 1px solid var(--gray-100); padding: var(--space-4); }
.tc-faq details[open] { border-color: var(--primary-200); }
.tc-faq summary { font-weight: 500; cursor: pointer; font-size: var(--text-sm); }
.tc-faq p { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.6; }

@media (max-width: 768px) {
    .tool-page__content { grid-template-columns: 1fr; }
    .tool-right-col { position: static; }
    .tc-header { gap: var(--space-3); } .tc-header__title { font-size: var(--text-xl); }
    .tc-result { padding: var(--space-4); }
    .tc-related__grid { grid-template-columns: 1fr; }
}