/* ============================================================
   SOURCES — Document Context UI Styles
   Phase 9: Sources pill, upload zone, document list,
   context status banner, citation styling
   ============================================================ */

/* ─── Sources Pill in Stage Navigation ────────────────────── */

.stage-pill-sources {
    background: transparent;
    border: 1px dashed #d1d5db;
    color: #6b7280;
    font-size: 12px;
    padding: 6px 14px;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    margin-right: 12px;
    flex-shrink: 0;
}

.stage-pill-sources:hover {
    border-color: #6366f1;
    color: #6366f1;
    background: #eef2ff;
}

.stage-pill-sources.active {
    border-style: solid;
    border-color: #6366f1;
    color: #6366f1;
    background: #eef2ff;
    font-weight: 600;
}

.stage-pill-sources-icon {
    font-size: 14px;
}

.stage-pill-sources .pill-count {
    background: #6366f1;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
    line-height: 16px;
}


/* ─── Sources Tab Container ──────────────────────────────── */

.sources-tab-container {
    padding: 0;
}

.sources-tab-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.sources-tab-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.sources-tab-header .sources-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
}


/* ─── Sources Input Component ────────────────────────────── */

.sources-input-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

/* Upload Drop Zone */
.sources-drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 20px;
    position: relative;
}

.sources-drop-zone:hover,
.sources-drop-zone.drag-over {
    border-color: #6366f1;
    background: #f5f3ff;
}

.sources-drop-zone-icon {
    font-size: 28px;
    margin-bottom: 8px;
    opacity: 0.5;
}

.sources-drop-zone-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sources-drop-zone-text strong {
    color: #6366f1;
}

.sources-drop-zone-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.sources-drop-zone input[type="file"] {
    display: none;
}

/* Action Buttons Row */
.sources-action-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sources-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-primary);
    transition: all 0.15s;
}

.sources-action-btn:hover {
    border-color: #6366f1;
    color: #6366f1;
    background: #f5f3ff;
}

.sources-action-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.sources-action-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.sources-action-btn .coming-soon {
    font-size: 0.65rem;
    background: var(--gray-5);
    color: var(--text-muted);
    padding: 1px 5px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}


/* ─── Document List ──────────────────────────────────────── */

.sources-document-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sources-document-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color 0.15s;
}

.sources-document-item:hover {
    border-color: var(--gray-3);
}

.sources-doc-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.sources-doc-icon.upload { background: #eff6ff; }
.sources-doc-icon.web_fetch { background: #f0fdf4; }
.sources-doc-icon.deep_research { background: #faf5ff; }
.sources-doc-icon.copied_text { background: #fff7ed; }
.sources-doc-icon.coach_research { background: #fef2f2; }

.sources-doc-info {
    flex: 1;
    min-width: 0;
}

.sources-doc-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sources-doc-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    gap: 8px;
    align-items: center;
    margin-top: 2px;
}

.sources-doc-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    flex-shrink: 0;
}

.sources-doc-status.complete {
    background: var(--green-light);
    color: var(--green-dark);
}

.sources-doc-status.processing,
.sources-doc-status.pending {
    background: var(--amber-light);
    color: var(--amber-dark);
}

.sources-doc-status.failed {
    background: var(--red-light);
    color: var(--red-dark);
}

.sources-doc-retry {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
    font-size: 16px;
    line-height: 1;
}

.sources-doc-retry:hover {
    background: #eef2ff;
    color: #6366f1;
}

.sources-doc-delete {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
}

.sources-doc-delete:hover {
    background: var(--red-light);
    color: var(--red);
}

.sources-doc-sections {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 3px;
}


/* ─── Upload Progress ────────────────────────────────────── */

.sources-upload-progress {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
}

.sources-upload-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: #f9fafb;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.sources-upload-item .upload-file-name {
    flex: 1;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sources-upload-item .upload-status {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.sources-upload-item .upload-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

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


/* ─── Modals for URL / Text input ────────────────────────── */

.sources-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.sources-modal {
    background: var(--surface);
    border-radius: var(--radius-lg);
    width: min(520px, 92vw);
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.sources-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 0;
}

.sources-modal-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.sources-modal-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    line-height: 1;
}

.sources-modal-close:hover {
    color: var(--text-primary);
}

.sources-modal-body {
    padding: 16px 24px 24px;
}

.sources-modal-body textarea {
    width: 100%;
    min-height: 160px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    resize: vertical;
    line-height: 1.5;
}

.sources-modal-body textarea:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.sources-modal-body input[type="text"],
.sources-modal-body input[type="url"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
}

.sources-modal-body input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.sources-modal-body label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.sources-modal-body .field-group {
    margin-bottom: 16px;
}

.sources-url-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.sources-url-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.sources-url-row input {
    flex: 1;
}

.sources-url-remove {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sources-url-remove:hover {
    background: var(--red-light);
    color: var(--red);
}

.sources-url-add {
    font-size: 0.8rem;
    color: #6366f1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
    background: none;
    border: none;
    padding: 4px 0;
}

.sources-url-add:hover {
    text-decoration: underline;
}

.sources-modal-footer {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    padding: 0 24px 20px;
}


/* ─── Research Progress ──────────────────────────────────── */

.sources-research-progress {
    padding: 16px;
    background: #faf5ff;
    border: 1px solid #e9d5ff;
    border-radius: var(--radius-md);
    margin-top: 12px;
}

.sources-research-progress .progress-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #7c3aed;
    margin-bottom: 8px;
}

.sources-research-progress .progress-message {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.sources-research-progress .progress-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid #e9d5ff;
    border-top-color: #7c3aed;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 6px;
    vertical-align: middle;
}


/* ─── Context Status Banner ──────────────────────────────── */

.sources-context-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    margin-bottom: 16px;
}

.sources-context-banner.has-context {
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    color: #4338ca;
}

.sources-context-banner.processing {
    background: var(--amber-light);
    border: 1px solid #fde68a;
    color: var(--amber-dark);
}

.sources-context-banner.new-context {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.sources-context-banner .banner-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.sources-context-banner .banner-text {
    flex: 1;
}

.sources-context-banner .banner-action {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid currentColor;
    background: transparent;
    color: inherit;
    transition: all 0.15s;
    flex-shrink: 0;
}

.sources-context-banner .banner-action:hover {
    background: rgba(0,0,0,0.05);
}


/* ─── Citation Styling in Task Output ────────────────────── */

.source-citation {
    display: inline;
    font-size: 0.65rem;
    color: #9ca3af;
    font-weight: 500;
    opacity: 0.75;
    letter-spacing: 0.01em;
}

.source-citation::before {
    content: '';
}


/* ─── Empty State ────────────────────────────────────────── */

.sources-empty-state {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-muted);
}

.sources-empty-state-icon {
    font-size: 36px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.sources-empty-state h4 {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 6px;
}

.sources-empty-state p {
    font-size: 0.8rem;
    max-width: 420px;
    margin: 0 auto;
    line-height: 1.5;
}


/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 768px) {
    .sources-action-row {
        flex-direction: column;
    }

    .sources-action-btn {
        justify-content: center;
    }

    .sources-tab-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .sources-document-item {
        flex-wrap: wrap;
    }
}