/* ─── Remove Duplicate Lines — Brand-Consistent Stylesheet ──────────────────
   Scoped entirely to #fu-remove-duplicate-lines.
   Uses only standard design system variables (--fu-*).
   ─────────────────────────────────────────────────────────────────────────── */

#fu-remove-duplicate-lines {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

/* 2-Column Responsive Workspace Grid */
#fu-remove-duplicate-lines .fu-rdl-workspace {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    align-items: stretch;
    width: 100%;
}

#fu-remove-duplicate-lines .fu-rdl-main-panel,
#fu-remove-duplicate-lines .fu-rdl-output-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0; /* Prevents textareas from breaking grid width */
    height: 100%; /* Force grid items to stretch height */
}

/* Premium Textarea Overrides */
#fu-remove-duplicate-lines .fu-textarea {
    background: var(--fu-input-bg);
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius);
    padding: 0.875rem;
    font-family: var(--fu-font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--fu-text);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: border-color var(--fu-transition), box-shadow var(--fu-transition);
    box-sizing: border-box;
    min-height: 220px;
    flex-grow: 1; /* Stretch textarea to fill card height */
    resize: none; /* No manual resizing */
}

#fu-remove-duplicate-lines .fu-textarea:focus {
    outline: none;
    border-color: var(--fu-accent);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04), 0 0 0 3px var(--fu-accent-light);
}

/* Custom Scrollbars */
#fu-remove-duplicate-lines .fu-textarea::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

#fu-remove-duplicate-lines .fu-textarea::-webkit-scrollbar-track {
    background: transparent;
}

#fu-remove-duplicate-lines .fu-textarea::-webkit-scrollbar-thumb {
    background: var(--fu-border);
    border-radius: var(--fu-radius-sm);
}

#fu-remove-duplicate-lines .fu-textarea::-webkit-scrollbar-thumb:hover {
    background: var(--fu-border-focus);
}

/* Options Area */
#fu-remove-duplicate-lines .fu-rdl-controls-panel {
    padding: 1rem 1.25rem;
}

#fu-remove-duplicate-lines .fu-rdl-options-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2.5rem;
    align-items: center;
}

#fu-remove-duplicate-lines .fu-rdl-mode-col {
    flex: 0 1 auto;
}

#fu-remove-duplicate-lines .fu-rdl-setting-col {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

/* Pills Selection */
#fu-remove-duplicate-lines .fu-rdl-pills {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.375rem;
    overflow-x: auto;
    padding-bottom: 2px;
}

/* Hide scrollbar for pills container but allow swiping on mobile */
#fu-remove-duplicate-lines .fu-rdl-pills::-webkit-scrollbar {
    display: none;
}
#fu-remove-duplicate-lines .fu-rdl-pills {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

#fu-remove-duplicate-lines .fu-rdl-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.875rem;
    border-radius: 9999px;
    border: 1.5px solid var(--fu-border);
    background: transparent;
    font-family: var(--fu-font-family);
    font-size: 0.775rem;
    font-weight: 500;
    color: var(--fu-text-muted);
    cursor: pointer;
    transition: border-color var(--fu-transition), color var(--fu-transition),
                background var(--fu-transition);
    line-height: 1;
    white-space: nowrap;
}

#fu-remove-duplicate-lines .fu-rdl-pill:hover {
    border-color: var(--fu-accent);
    color: var(--fu-accent);
    background: var(--fu-accent-light);
}

#fu-remove-duplicate-lines .fu-rdl-pill.active {
    background: var(--fu-accent);
    border-color: var(--fu-accent);
    color: var(--fu-btn-primary-text);
    font-weight: 600;
}

/* Formatting Toggles (Pill Checkboxes arranged horizontally) */
#fu-remove-duplicate-lines .fu-rdl-toggles {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
}

#fu-remove-duplicate-lines .fu-toggle-label {
    display: inline-flex;
    align-items: center;
    position: relative;
    cursor: pointer;
    user-select: none;
    transition: opacity var(--fu-transition);
}

#fu-remove-duplicate-lines .fu-toggle-checkbox {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

#fu-remove-duplicate-lines .fu-toggle-pills-text {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.875rem;
    border-radius: 9999px;
    border: 1.5px solid var(--fu-border);
    background: transparent;
    font-family: var(--fu-font-family);
    font-size: 0.775rem;
    font-weight: 500;
    color: var(--fu-text-muted);
    transition: border-color var(--fu-transition), color var(--fu-transition),
                background var(--fu-transition);
    line-height: 1;
    white-space: nowrap;
}

#fu-remove-duplicate-lines .fu-toggle-label:hover .fu-toggle-pills-text {
    border-color: var(--fu-accent);
    color: var(--fu-accent);
    background: var(--fu-accent-light);
}

#fu-remove-duplicate-lines .fu-toggle-checkbox:checked + .fu-toggle-pills-text {
    background: var(--fu-accent);
    border-color: var(--fu-accent);
    color: var(--fu-btn-primary-text);
    font-weight: 600;
}

#fu-remove-duplicate-lines .fu-toggle-checkbox:focus-visible + .fu-toggle-pills-text {
    outline: 2px solid var(--fu-accent);
    outline-offset: 2px;
}

/* Centered Footer Stats */
#fu-remove-duplicate-lines .fu-rdl-stats-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--fu-text-muted);
    line-height: 1;
}

/* Disabled Copy Button Override */
#fu-remove-duplicate-lines .fu-btn:disabled {
    opacity: 0.4 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    box-shadow: none !important;
}

/* Responsive Rules */
@media (max-width: 800px) {
    #fu-remove-duplicate-lines .fu-rdl-workspace {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    #fu-remove-duplicate-lines .fu-rdl-options-row {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    #fu-remove-duplicate-lines .fu-rdl-pills {
        flex-wrap: wrap;
    }
}