/* PDF Lock/Unlock Tool */
.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); }

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

/* Canvas */
.plu-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); }
.plu-page-info { margin-top: 8px; font-size: 13px; color: var(--text-secondary); }

/* Status Grid */
.plu-status-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.plu-status-item { flex: 1; min-width: 80px; padding: 8px 12px; background: var(--bg-tertiary); border-radius: var(--radius-md); border: 1px solid var(--gray-100); }
.plu-status-item--full { flex-basis: 100%; }
.plu-status-label { font-size: 10px; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 2px; }
.plu-status-value { font-size: 14px; font-weight: 600; color: var(--text-primary); }

/* Mode Badge */
.plu-mode-badge {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-radius: var(--radius-lg);
    font-size: 14px; font-weight: 600;
    margin-bottom: 4px;
}
.plu-mode-badge.hidden { display: none; }
.plu-mode-badge--lock {
    background: linear-gradient(135deg, rgba(34,197,94,0.08), rgba(34,197,94,0.04));
    border: 1px solid rgba(34,197,94,0.2);
    color: #16a34a;
}
.plu-mode-badge--unlock {
    background: linear-gradient(135deg, rgba(239,68,68,0.08), rgba(239,68,68,0.04));
    border: 1px solid rgba(239,68,68,0.2);
    color: #dc2626;
}
.plu-mode-badge--restrictions {
    background: linear-gradient(135deg, rgba(245,158,11,0.08), rgba(245,158,11,0.04));
    border: 1px solid rgba(245,158,11,0.2);
    color: #d97706;
}
.plu-mode-badge__icon { font-size: 20px; flex-shrink: 0; }

/* Password */
.plu-password-wrap { position: relative; }
.plu-password-input { width: 100%; padding-right: 44px; -webkit-text-security: disc; font-family: monospace; letter-spacing: 2px; box-sizing: border-box; }
.plu-password-toggle { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; padding: 4px; color: var(--text-tertiary); display: flex; align-items: center; }
.plu-password-toggle:hover { color: var(--text-primary); }
.plu-password-hint { font-size: 11px; margin-top: 6px; min-height: 16px; }
.plu-password-hint--error { color: var(--error, #ef4444); }
.plu-password-hint--match { color: var(--success, #22c55e); }

/* Overlay */
.plu-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15,23,42,0.8); backdrop-filter: blur(4px); display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: var(--radius-lg); z-index: 10; gap: 12px; }
.plu-overlay.hidden { display: none; }
.plu-overlay__text { color: #fff; font-size: var(--text-sm); font-weight: 500; }
.plu-spinner { width: 44px; height: 44px; border: 4px solid rgba(255,255,255,0.25); border-top-color: #fff; border-radius: 50%; animation: plu-spin 0.8s linear infinite; }
@keyframes plu-spin { to { transform: rotate(360deg); } }

/* Action button mode styling */
#btn-action { display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: background 0.2s; }
#btn-action svg { flex-shrink: 0; }
#btn-action.btn--lock { background: linear-gradient(135deg, #16a34a, #15803d); }
#btn-action.btn--lock:hover { background: linear-gradient(135deg, #15803d, #166534); }
#btn-action.btn--unlock { background: linear-gradient(135deg, #dc2626, #b91c1c); }
#btn-action.btn--unlock:hover { background: linear-gradient(135deg, #b91c1c, #991b1b); }

/* Shared tc- classes */
.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; }
.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; }
}