/* ============================================================
   subject-generator.css
   Tách từ 5-modals.css — tất cả styles liên quan:
     sgp-*  SubjectGeneratorPanel
     bg-*   BatchGeneratePage  
     bpp-*  BookPreviewPanel
   Load trong App.razor hoặc AdminLayout.
   ============================================================ */

/* ── Backdrop ────────────────────────────────────────────────────────────── */
.sgp-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

/* ── Panel ───────────────────────────────────────────────────────────────── */
.sgp-panel {
    background: var(--bg-primary, #fff);
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 12px;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.sgp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sgp-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

    .sgp-header-left .ti {
        font-size: 16px;
        color: var(--color-text-info, #4f8ef7);
    }

.sgp-close {
    padding: 4px 6px;
    border-radius: 6px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    transition: background 0.12s;
}

    .sgp-close:hover {
        background: var(--bg-secondary);
    }

/* ── Body ────────────────────────────────────────────────────────────────── */
.sgp-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* ── Left: Controls ──────────────────────────────────────────────────────── */
.sgp-left {
    width: 300px;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

    .sgp-left::-webkit-scrollbar {
        width: 4px;
    }

    .sgp-left::-webkit-scrollbar-track {
        background: transparent;
    }

    .sgp-left::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: 2px;
    }

.sgp-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sgp-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.sgp-textarea {
    width: 100%;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 12px;
    line-height: 1.5;
    resize: none;
    font-family: inherit;
    transition: border-color 0.12s;
}

    .sgp-textarea:focus {
        outline: none;
        border-color: var(--color-border-info, #4f8ef7);
    }

.sgp-hint {
    font-size: 10px;
    color: var(--text-tertiary);
    line-height: 1.5;
}

    .sgp-hint code {
        background: var(--bg-secondary);
        padding: 1px 4px;
        border-radius: 3px;
        font-size: 10px;
        color: var(--color-text-info, #4f8ef7);
    }

/* ── Chips ───────────────────────────────────────────────────────────────── */
.sgp-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.sgp-chip {
    padding: 5px 9px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.12s;
    display: flex;
    align-items: center;
    gap: 4px;
}

    .sgp-chip:hover {
        border-color: var(--color-border-info, #4f8ef7);
        color: var(--text-primary);
    }

    .sgp-chip.active {
        background: rgba(79, 142, 247, 0.1);
        border-color: var(--color-border-info, #4f8ef7);
        color: var(--color-text-info, #4f8ef7);
        font-weight: 600;
    }

/* ── Range slider ────────────────────────────────────────────────────────── */
.sgp-range {
    width: 100%;
    accent-color: var(--color-text-info, #4f8ef7);
}

.sgp-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-tertiary);
    margin-top: -2px;
}

/* ── Generate button ─────────────────────────────────────────────────────── */
.sgp-gen-btn {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: none;
    background: var(--color-text-info, #4f8ef7);
    color: #fff;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: opacity 0.12s, transform 0.12s;
    margin-top: auto;
}

    .sgp-gen-btn:hover:not(:disabled) {
        opacity: 0.9;
        transform: translateY(-1px);
    }

    .sgp-gen-btn:disabled {
        opacity: 0.45;
        cursor: not-allowed;
        transform: none;
    }

.sgp-error {
    padding: 8px 10px;
    border-radius: 6px;
    background: var(--color-background-danger);
    border: 1px solid var(--color-border-danger);
    color: var(--color-text-danger);
    font-size: 11px;
    display: flex;
    align-items: flex-start;
    gap: 6px;
    line-height: 1.5;
}

/* ── Right: Subject list ─────────────────────────────────────────────────── */
.sgp-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.sgp-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 12px;
    text-align: center;
    padding: 20px;
}

/* ── List header ─────────────────────────────────────────────────────────── */
.sgp-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sgp-select-all {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
}

    .sgp-select-all input {
        accent-color: var(--color-text-info, #4f8ef7);
    }

.sgp-selected-count {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* ── Scrollable list ─────────────────────────────────────────────────────── */
.sgp-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

    .sgp-list::-webkit-scrollbar {
        width: 4px;
    }

    .sgp-list::-webkit-scrollbar-track {
        background: transparent;
    }

    .sgp-list::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: 2px;
    }

/* ── Subject item ────────────────────────────────────────────────────────── */
.sgp-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.12s;
    background: var(--bg-primary);
}

    .sgp-item:hover {
        border-color: var(--color-border-secondary);
        background: var(--bg-secondary);
    }

    .sgp-item.selected {
        border-color: var(--color-border-info, #4f8ef7);
        background: rgba(79, 142, 247, 0.06);
    }

.sgp-item-cb {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1.5px solid var(--border);
    background: transparent;
    flex-shrink: 0;
    margin-top: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.12s;
    color: #fff;
}

.sgp-item.selected .sgp-item-cb {
    background: var(--color-text-info, #4f8ef7);
    border-color: var(--color-text-info, #4f8ef7);
}

.sgp-item-body {
    flex: 1;
    min-width: 0;
}

.sgp-item-num {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: 2px;
}

.sgp-item.selected .sgp-item-num {
    color: var(--color-text-info, #4f8ef7);
}

.sgp-item-text {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.4;
}

.sgp-item-preview {
    font-size: 10px;
    color: var(--text-tertiary);
    font-style: italic;
    margin-top: 3px;
    line-height: 1.4;
}

.sgp-regen-btn {
    padding: 4px 5px;
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 12px;
    flex-shrink: 0;
    transition: all 0.12s;
}

    .sgp-regen-btn:hover:not(:disabled) {
        border-color: var(--border);
        color: var(--text-secondary);
        background: var(--bg-secondary);
    }

    .sgp-regen-btn:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.sgp-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    gap: 12px;
}

.sgp-footer-info {
    font-size: 12px;
    color: var(--text-secondary);
    flex: 1;
}

    .sgp-footer-info strong {
        color: var(--text-primary);
    }

.sgp-footer-actions {
    display: flex;
    gap: 8px;
}

.sgp-btn-cancel {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.12s;
}

    .sgp-btn-cancel:hover {
        background: var(--bg-secondary);
    }

.sgp-btn-inject {
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    background: var(--color-text-success, #3ecf6e);
    color: #0a2010;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.12s;
}

    .sgp-btn-inject:hover:not(:disabled) {
        filter: brightness(1.08);
        transform: translateY(-1px);
    }

    .sgp-btn-inject:disabled {
        opacity: 0.4;
        cursor: not-allowed;
        transform: none;
    }

/* ── Spinner ─────────────────────────────────────────────────────────────── */
.sgp-spin {
    animation: sgp-spin-anim 0.7s linear infinite;
}

@keyframes sgp-spin-anim {
    to {
        transform: rotate(360deg);
    }
}

/* ── Batch generate subjects button ──────────────────────────────────────── */
.bg-btn-gen-subjects {
    background: rgba(79, 142, 247, 0.1);
    border-color: var(--color-border-info);
    color: var(--color-text-info);
    font-size: 11px;
    padding: 4px 10px;
}

    .bg-btn-gen-subjects:hover {
        background: rgba(79, 142, 247, 0.18);
    }

    .bg-btn-gen-subjects .ti {
        font-size: 12px;
    }

/* ── Provider tabs (text model selector) ────────────────────────────────── */
.sgp-provider-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
}

.sgp-provider-tab {
    flex: 1;
    padding: 5px 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.12s;
    font-family: inherit;
}

    .sgp-provider-tab:hover {
        border-color: var(--color-border-info);
        color: var(--text-primary);
    }

    .sgp-provider-tab.active {
        background: rgba(79, 142, 247, 0.12);
        border-color: var(--color-border-info);
        color: var(--color-text-info);
        font-weight: 600;
    }

/* ── Model select ────────────────────────────────────────────────────────── */
.sgp-select {
    width: 100%;
    padding: 7px 10px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: border-color 0.12s;
}

    .sgp-select:focus {
        border-color: var(--color-border-info);
    }

/* ── Gen + Preview button row ────────────────────────────────────────────── */
.sgp-btn-row {
    display: flex;
    gap: 6px;
    margin-top: auto;
}

    .sgp-btn-row .sgp-gen-btn {
        flex: 1;
        margin-top: 0;
        width: auto;
    }

.sgp-preview-btn {
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    transition: all 0.12s;
    flex-shrink: 0;
}

    .sgp-preview-btn:hover:not(:disabled) {
        border-color: var(--color-border-info);
        color: var(--color-text-info);
    }

    .sgp-preview-btn:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

/* ── Prompt Preview Modal ────────────────────────────────────────────────── */
.sgp-preview-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.sgp-preview-modal {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 100%;
    max-width: 720px;
    max-height: 80vh;
    height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sgp-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    flex-shrink: 0;
}

.sgp-preview-tabs {
    display: flex;
    gap: 4px;
    padding: 10px 16px 0;
    flex-shrink: 0;
}

.sgp-preview-tab {
    padding: 5px 12px;
    border-radius: 6px 6px 0 0;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.12s;
}

    .sgp-preview-tab.active {
        background: var(--bg-secondary);
        border-color: var(--border);
        border-bottom-color: var(--bg-secondary);
        color: var(--text-primary);
        font-weight: 600;
    }

.sgp-preview-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 16px;
    background: var(--bg-secondary);
    margin: 0 16px;
    border-radius: 0 6px 6px 6px;
    border: 1px solid var(--border);
}

.sgp-preview-code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 11px;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.sgp-preview-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.sgp-btn-copy {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--color-text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

    .sgp-btn-copy:hover {
        background: var(--bg-hover);
    }

    .sgp-btn-copy.copied {
        border-color: var(--color-success, #22c55e);
        color: var(--color-success, #22c55e);
    }

/* ── aireq provider tabs (AIRequestAdmin) ────────────────────────────────── */
.aireq-provider-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
}

.aireq-provider-tab {
    flex: 1;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: all 0.12s;
    font-family: inherit;
}

    .aireq-provider-tab:hover {
        border-color: var(--color-border-info);
        color: var(--text-primary);
    }

    .aireq-provider-tab.active {
        background: var(--color-background-info);
        border-color: var(--color-border-info);
        color: var(--color-text-info);
    }

/* ── bsp provider dot (BookSettingsPanel) ───────────────────────────────── */
.bsp-provider-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

    .bsp-provider-dot.gemini {
        background: #4285f4;
    }

    .bsp-provider-dot.openai {
        background: #10a37f;
    }

    .bsp-provider-dot.stability {
        background: #7c3aed;
    }

    .bsp-provider-dot.flux {
        background: #f59e0b;
    }

/* ══════════════════════════════════════════════════════════════════════════
   LOCK / STYLE SETTINGS ADDITIONS
   ══════════════════════════════════════════════════════════════════════════ */

/* ── BatchGeneratePage — info banner + lock badge ───────────────────────── */
.bg-info-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-text-warning, #f59e0b);
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 8px;
}

    .bg-info-banner strong {
        color: inherit;
    }

.bg-lock-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 7px;
    border-radius: 4px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-text-warning, #f59e0b);
    font-size: 10px;
    font-weight: 600;
    margin-left: 4px;
}

.bg-hint-warn {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text-warning, #f59e0b);
    font-size: 11px;
    margin-top: 6px;
}

/* ── BookSettingsPanel — lock banner ────────────────────────────────────── */
.bsp-lock-banner {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-text-warning, #f59e0b);
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 4px;
}

    .bsp-lock-banner strong {
        color: inherit;
    }

.bsp-theme-btn.disabled,
.bsp-seg-btn.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

/* ── BookPreviewPanel — Settings tab ────────────────────────────────────── */
.bpp-settings-tab {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.bpp-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.bpp-settings-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.bpp-lock-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-text-warning, #f59e0b);
    font-size: 11px;
    font-weight: 600;
}

.bpp-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.bpp-settings-item {
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.bpp-settings-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.bpp-settings-value {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.bpp-settings-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 400;
    margin-left: 4px;
}

.bpp-settings-mono {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 11px;
}

.bpp-settings-template {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.bpp-settings-prompt-text {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 11px;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.bpp-settings-lock-note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: var(--color-text-warning, #f59e0b);
    font-size: 12px;
    line-height: 1.5;
}

/* ── SubjectGeneratorPanel — lock styles ─────────────────────────────────── */
.sgp-lock-icon {
    display: inline-flex;
    align-items: center;
    margin-left: 5px;
    color: var(--color-text-warning, #f59e0b);
    font-size: 11px;
    opacity: 0.8;
}

.sgp-chip-locked {
    opacity: 0.75;
    cursor: default;
    pointer-events: none;
    border-color: rgba(245, 158, 11, 0.4);
    background: rgba(245, 158, 11, 0.08);
    color: var(--color-text-warning, #f59e0b);
}

/* ── BookPreviewPanel — editable settings form ───────────────────────────── */
.bpp-settings-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bpp-settings-form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.bpp-settings-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.bpp-settings-chip {
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.12s;
    display: flex;
    align-items: center;
    gap: 4px;
}

    .bpp-settings-chip:hover {
        border-color: var(--color-border-info);
        color: var(--text-primary);
    }

    .bpp-settings-chip.active {
        background: rgba(79, 142, 247, 0.1);
        border-color: var(--color-border-info);
        color: var(--color-text-info);
        font-weight: 600;
    }

.bpp-settings-seg {
    display: flex;
    gap: 4px;
}

.bpp-settings-seg-btn {
    flex: 1;
    padding: 7px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.12s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

    .bpp-settings-seg-btn:hover {
        border-color: var(--color-border-info);
        color: var(--text-primary);
    }

    .bpp-settings-seg-btn.active {
        background: rgba(79, 142, 247, 0.1);
        border-color: var(--color-border-info);
        color: var(--color-text-info);
        font-weight: 600;
    }

.bpp-settings-select {
    width: 100%;
    padding: 7px 10px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: border-color 0.12s;
}

    .bpp-settings-select:focus {
        border-color: var(--color-border-info);
    }

.bpp-settings-textarea {
    width: 100%;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 12px;
    line-height: 1.5;
    resize: none;
    font-family: inherit;
    transition: border-color 0.12s;
}

    .bpp-settings-textarea:focus {
        outline: none;
        border-color: var(--color-border-info);
    }

.bpp-settings-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: 4px;
    border-top: 1px solid var(--border);
}

.bpp-btn-save {
    padding: 8px 18px;
    border-radius: 8px;
    border: none;
    background: var(--color-text-info, #4f8ef7);
    color: #fff;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.12s;
}

    .bpp-btn-save:hover:not(:disabled) {
        opacity: 0.9;
        transform: translateY(-1px);
    }

    .bpp-btn-save:disabled {
        opacity: 0.45;
        cursor: not-allowed;
        transform: none;
    }

.bpp-spin {
    animation: sgp-spin-anim 0.7s linear infinite;
}

/* ── BookPreviewPanel Settings — text input ──────────────────────────────── */
.bpp-settings-input {
    width: 100%;
    padding: 8px 10px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.12s;
}

    .bpp-settings-input:focus {
        border-color: var(--color-border-info);
    }

/* ── SubjectGeneratorPanel — language toggle ─────────────────────────────── */
.sgp-lang-toggle {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.sgp-lang-btn {
    padding: 4px 10px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.12s;
}

    .sgp-lang-btn.active {
        background: var(--color-text-info, #4f8ef7);
        color: #fff;
    }

.sgp-preview-vi-note {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(245, 158, 11, 0.08);
    border-bottom: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--color-text-warning, #f59e0b);
    font-size: 11px;
}

/* ── SubjectGeneratorPanel — Creative/Structured mode toggle ─────────────── */
.sgp-mode-toggle {
    display: flex;
    gap: 4px;
}

.sgp-mode-btn {
    flex: 1;
    padding: 7px 10px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: all 0.12s;
}

    .sgp-mode-btn:hover {
        border-color: var(--color-border-info);
        color: var(--text-primary);
    }

    .sgp-mode-btn.active {
        background: rgba(79, 142, 247, 0.1);
        border-color: var(--color-border-info);
        color: var(--color-text-info);
        font-weight: 600;
    }

        .sgp-mode-btn.active.creative {
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.4);
            color: var(--color-text-warning, #f59e0b);
        }

/* ── BatchGeneratePage — label row with action button ───────────────────── */
.bg-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.bg-btn-sm {
    padding: 4px 10px;
    font-size: 11px;
    height: auto;
}

.bg-btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

    .bg-btn-outline:hover:not(:disabled) {
        border-color: var(--color-border-info);
        color: var(--color-text-info);
        background: rgba(79,142,247,0.06);
    }

/* ── Required textarea indicator ─────────────────────────────────────────── */
.sgp-textarea-required {
    border-color: rgba(245, 158, 11, 0.5) !important;
}

    .sgp-textarea-required:focus {
        border-color: var(--color-text-warning, #f59e0b) !important;
    }

/* ── BatchGeneratePage — book info multi-row ─────────────────────────────── */
.bg-book-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px 10px;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    margin-top: 6px;
    font-size: 12px;
}

.bg-book-info-row {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

    .bg-book-info-row .ti {
        font-size: 13px;
        opacity: 0.7;
        flex-shrink: 0;
    }

.bg-info-dot {
    opacity: 0.4;
}

.bg-book-template {
    font-size: 11px;
    color: var(--text-tertiary);
    font-style: italic;
    padding-top: 4px;
    border-top: 1px solid var(--border);
}

/* ── BatchGeneratePage — settings read-only grid ─────────────────────────── */
.bg-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    margin-bottom: 4px;
}

.bg-settings-item {
    padding: 8px 12px;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.bg-settings-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.bg-settings-value {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
}

.bg-settings-mono {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 11px;
    color: var(--text-secondary);
}

/* ── BatchGeneratePage — book select row with icon buttons ───────────────── */
.bg-book-select-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.bg-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    transition: all 0.12s;
}

    .bg-icon-btn:hover {
        border-color: var(--color-border-info);
        color: var(--color-text-info);
    }

.bg-icon-btn-primary {
    border-color: var(--color-border-info);
    color: var(--color-text-info);
    background: rgba(79,142,247,0.08);
}

    .bg-icon-btn-primary:hover {
        background: rgba(79,142,247,0.16);
    }

/* settings sub label */
.bg-settings-sub {
    font-size: 10px;
    color: var(--text-tertiary);
    font-weight: 400;
    margin-left: 4px;
}


/* ============================================================
   BUCKET & AVOID REPEATS — additions (bucket feature)
   ============================================================ */

/* ── Bucket locked label badge ── */
.sgp-label-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 10px;
    font-weight: 500;
    padding: 1px 6px;
    border-radius: 8px;
    margin-left: 6px;
    vertical-align: middle;
}

.sgp-label-badge--locked {
    background: var(--bg-secondary, #f3f4f6);
    color: var(--text-secondary, #6b7280);
    border: 1px solid var(--border, #e5e7eb);
}

/* ── Hint variants ── */
.sgp-hint--warning {
    color: var(--color-text-warning, #b45309);
    background: var(--color-bg-warning, #fffbeb);
    border: 1px solid var(--color-border-warning, #fde68a);
    border-radius: 4px;
    padding: 4px 8px;
}

.sgp-hint--info {
    color: var(--color-text-info, #1d4ed8);
    background: var(--color-background-info, #eff6ff);
    border: 1px solid var(--color-border-info, #bfdbfe);
    border-radius: 4px;
    padding: 4px 8px;
}

/* ── Avoid Repeats row ── */
.sgp-avoid-repeats-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.sgp-avoid-repeats-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

/* Header khối rejected — tách khỏi list sạch bằng đường kẻ + màu warning */
.sgp-rejected-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px dashed var(--color-border, #3a3a3a);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-warning, #e6a23c);
}

/* List rejected: nén nhẹ hơn list chính */
.sgp-list--rejected {
    margin-top: 6px;
    gap: 4px;
}

/* Item rejected: mờ, viền warning trái, không có cursor chọn */
.sgp-item--rejected {
    opacity: 0.6;
    border-left: 3px solid var(--color-text-warning, #e6a23c);
    cursor: default;
    background: color-mix(in srgb, var(--color-text-warning, #e6a23c) 5%, transparent);
}

    .sgp-item--rejected:hover {
        opacity: 0.85; /* hover rõ hơn để đọc nội dung + reason */
    }

/* Badge lý do reject — thay vị trí PROMPT NN của item thường */
.sgp-reject-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-text-warning, #e6a23c);
}

    .sgp-reject-badge i {
        font-size: 12px;
    }

/* Nút regen trên item rejected luôn hiện rõ (item mờ nhưng nút không mờ) */
.sgp-item--rejected .sgp-regen-btn {
    opacity: 1;
}

/* Header khối rejected — tách khỏi list sạch bằng đường kẻ + màu warning */
.sgp-rejected-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px dashed var(--color-border, #3a3a3a);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-warning, #e6a23c);
}

/* List rejected: nén nhẹ hơn list chính */
.sgp-list--rejected {
    margin-top: 6px;
    gap: 4px;
}

/* Item rejected: mờ, viền warning trái, không có cursor chọn */
.sgp-item--rejected {
    opacity: 0.6;
    border-left: 3px solid var(--color-text-warning, #e6a23c);
    cursor: default;
    background: color-mix(in srgb, var(--color-text-warning, #e6a23c) 5%, transparent);
}

    .sgp-item--rejected:hover {
        opacity: 0.85; /* hover rõ hơn để đọc nội dung + reason */
    }

/* Badge lý do reject — thay vị trí PROMPT NN của item thường */
.sgp-reject-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-text-warning, #e6a23c);
}

    .sgp-reject-badge i {
        font-size: 12px;
    }

/* Nút regen trên item rejected luôn hiện rõ (item mờ nhưng nút không mờ) */
.sgp-item--rejected .sgp-regen-btn {
    opacity: 1;
}

/* ═══ History panel (shp-*) — rejected display ═══ */

/* Badge đếm rejected trên list item history */
.shp-badge--rejected {
    color: var(--color-text-warning, #e6a23c);
    border-color: var(--color-text-warning, #e6a23c);
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

/* Tab Rejected — nhấn màu warning để phân biệt */
.shp-tab--warning {
    color: var(--color-text-warning, #e6a23c);
}

    .shp-tab--warning.active {
        color: var(--color-text-warning, #e6a23c);
        border-bottom-color: var(--color-text-warning, #e6a23c);
    }

/* Item rejected trong tab: mờ + viền warning, badge thay số thứ tự */
.shp-subject-item--rejected {
    opacity: 0.75;
    border-left: 3px solid var(--color-text-warning, #e6a23c);
    background: color-mix(in srgb, var(--color-text-warning, #e6a23c) 5%, transparent);
}

.shp-reject-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-warning, #e6a23c);
    white-space: nowrap;
}