/* Ultimate Premium Duplicate Badge (Table) */
.btn-duplicate {
    position: relative;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    color: var(--accent-hover);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 800;
    margin-left: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    box-shadow: 
        2px 2px 0px 0px rgba(99, 102, 241, 0.2), 
        4px 4px 0px 0px rgba(99, 102, 241, 0.1);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-duplicate:hover {
    background: var(--accent-hover);
    color: #ffffff;
    border-color: var(--accent-hover);
    transform: translate(-2px, -2px);
    box-shadow: 
        4px 4px 0px 0px rgba(99, 102, 241, 0.3), 
        8px 8px 0px 0px rgba(99, 102, 241, 0.1);
}

.btn-duplicate i {
    font-size: 9px;
    transition: transform 0.3s ease;
}

.btn-duplicate:hover i {
    transform: rotate(-12deg) scale(1.15);
}

/* Premium Duplicate Card Button (Grid Card) */
.btn-duplicate-card {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    color: var(--accent-hover);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: calc(100% - 6px);
    margin-right: 6px;
    box-shadow: 
        2px 2px 0px 0px rgba(99, 102, 241, 0.15), 
        4px 4px 0px 0px rgba(99, 102, 241, 0.08);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-duplicate-card:hover {
    background: var(--accent-hover);
    color: #ffffff;
    border-color: var(--accent-hover);
    transform: translate(-2px, -2px);
    box-shadow: 
        4px 4px 0px 0px rgba(99, 102, 241, 0.25), 
        8px 8px 0px 0px rgba(99, 102, 241, 0.12);
}

.btn-duplicate-card i {
    transition: transform 0.3s ease;
}

.btn-duplicate-card:hover i {
    transform: rotate(-12deg) scale(1.15);
}

/* "Manually added" badge and remove action in the Duplicate Cluster modal */
.manual-dup-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}

.manual-dup-remove {
    background: transparent;
    border: 1px solid #fca5a5;
    color: #b91c1c;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.manual-dup-remove:hover {
    background: #fef2f2;
}

/* "Mark as Duplicate" button beside Select All */
.btn-mark-duplicates {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 42px;
    padding: 0 16px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    color: var(--accent-hover);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-mark-duplicates:hover {
    background: var(--accent-hover);
    color: #ffffff;
}

.btn-mark-duplicates[hidden] {
    display: none;
}

/* Mark as Duplicate modal */
.mark-dup-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mark-dup-overlay[hidden] {
    display: none;
}

.mark-dup-dialog {
    background: #ffffff;
    width: 100%;
    max-width: 760px;
    max-height: 90vh;
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
}

.mark-dup-header {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    color: #ffffff;
    padding: 18px 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.mark-dup-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}

.mark-dup-header p {
    margin: 6px 0 0;
    font-size: 13px;
    color: #cbd5e1;
    line-height: 1.4;
}

.mark-dup-close {
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #ffffff;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
}

.mark-dup-close:hover {
    background: rgba(255, 255, 255, 0.25);
}

.mark-dup-body {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
    background: #f8fafc;
}

.mark-dup-body h3 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--secondary-color);
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mark-dup-body h3:not(:first-child) {
    margin-top: 22px;
}

.mark-dup-body h3 span {
    background: var(--accent-color);
    color: #ffffff;
    border-radius: 10px;
    padding: 1px 8px;
    font-size: 11px;
}

.mark-dup-body small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 12px;
}

.mark-dup-search {
    display: flex;
    gap: 10px;
}

.mark-dup-search input {
    flex: 1;
    min-width: 0;
}

.mark-dup-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#mark-dup-results {
    margin-top: 12px;
}

.mark-dup-row {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.mark-dup-row-main {
    min-width: 0;
}

.mark-dup-row-title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 14px;
    color: var(--text-primary);
}

.mark-dup-row-meta {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.mark-dup-row-grouped {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-hover);
}

.mark-dup-row-btn {
    flex-shrink: 0;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
}

.mark-dup-row-btn.add {
    background: var(--accent-color);
    border: 1px solid var(--accent-color);
    color: #ffffff;
}

.mark-dup-row-btn.remove {
    background: transparent;
    border: 1px solid #e2e8f0;
    color: var(--text-secondary);
}

.mark-dup-row-btn.remove:hover {
    border-color: #fca5a5;
    color: #b91c1c;
}

.mark-dup-row-added {
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 600;
    color: #059669;
}

.mark-dup-empty {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 8px 2px;
}

.mark-dup-empty.error {
    color: #b91c1c;
}

.mark-dup-footer {
    padding: 14px 24px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    background: #ffffff;
}

#mark-dup-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.mark-dup-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

@media (max-width: 600px) {
    .mark-dup-overlay {
        padding: 0;
    }

    .mark-dup-dialog {
        max-height: 100vh;
        height: 100%;
        border-radius: 0;
    }

    .mark-dup-row {
        flex-wrap: wrap;
    }
}

/* "Manual Duplicates" quick filter button beside Select All */
.btn-show-manual-duplicates {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 42px;
    padding: 0 16px;
    border-radius: var(--border-radius);
    border: 1px solid #fcd34d;
    background: #fffbeb;
    color: #92400e;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-show-manual-duplicates:hover {
    border-color: #f59e0b;
    background: #fef3c7;
}

.btn-show-manual-duplicates.active {
    background: #f59e0b;
    border-color: #d97706;
    color: #ffffff;
}

/* Styled confirmation dialog (replaces the browser's confirm()) */
.app-confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 100000; /* above the duplicate modals */
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.app-confirm-overlay[hidden] {
    display: none;
}

.app-confirm-dialog {
    background: #ffffff;
    width: 100%;
    max-width: 420px;
    border-radius: 16px;
    padding: 28px 28px 22px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    animation: appConfirmIn 0.18s ease-out;
}

@keyframes appConfirmIn {
    from { opacity: 0; transform: translateY(8px) scale(0.97); }
    to { opacity: 1; transform: none; }
}

.app-confirm-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    background: #eef2ff;
    color: var(--accent-hover);
}

.app-confirm-icon.danger {
    background: #fef2f2;
    color: #dc2626;
    box-shadow: 0 0 0 6px #fff5f5;
}

.app-confirm-dialog h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.app-confirm-dialog p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.app-confirm-detail {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    text-align: left;
}

.app-confirm-detail-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}

.app-confirm-detail-title i {
    color: #6366f1;
    margin-right: 4px;
}

.app-confirm-detail-meta {
    margin-top: 3px;
    font-size: 12px;
    color: var(--text-secondary);
}

.app-confirm-actions {
    display: flex;
    gap: 10px;
    margin-top: 22px;
}

.app-confirm-btn {
    flex: 1;
    height: 42px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.app-confirm-btn.cancel {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: var(--secondary-color);
}

.app-confirm-btn.cancel:hover {
    background: #f1f5f9;
}

.app-confirm-btn.danger {
    background: #dc2626;
    border: 1px solid #dc2626;
    color: #ffffff;
    box-shadow: 0 4px 10px rgba(220, 38, 38, 0.25);
}

.app-confirm-btn.danger:hover {
    background: #b91c1c;
    border-color: #b91c1c;
}

.app-confirm-btn:focus-visible {
    outline: 3px solid rgba(99, 102, 241, 0.45);
    outline-offset: 2px;
}

/* "Manual" badge on a listing that was linked by hand */
.btn-manual-link {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fcd34d;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 800;
    margin-left: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    transition: var(--transition-fast);
}

.btn-manual-link:hover {
    background: #f59e0b;
    border-color: #d97706;
    color: #ffffff;
}

.btn-manual-link.card {
    margin-left: 0;
    justify-content: center;
    width: calc(100% - 6px);
    margin-right: 6px;
    padding: 8px 12px;
    font-size: 12px;
}