/* ============================================================
   Deep Analysis — Premium Unified UI Stylesheet
   Inherits design system variables from design_tokens.css
   ============================================================ */

/* ── Deep Analyse Button (Header inline) ── */
.btn-deep-analyse {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full, 9999px);
    cursor: pointer;
    background: var(--accent-gradient, linear-gradient(135deg, #6366f1, #4f46e5));
    color: #ffffff;
    transition: all 0.2s var(--ease-out);
    box-shadow: var(--shadow-sm);
}
.btn-deep-analyse:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.15);
}
.btn-deep-analyse:active {
    transform: translateY(0);
}

/* ── Fullscreen Modal Overlay ── */
.deep-analysis-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal, 1000);
    display: none;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: daFadeIn 0.3s var(--ease-out);
    font-family: var(--font-sans);
}
.deep-analysis-overlay.active {
    display: flex;
}

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

/* ── Modal Container ── */
.deep-analysis-modal {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-base);
    overflow: hidden;
    animation: daSlideUp 0.35s var(--ease-out);
    color: var(--ink-900);
}

@keyframes daSlideUp {
    from { transform: translateY(30px); opacity: 0.5; }
    to { transform: translateY(0); opacity: 1; }
}

/* ── Header ── */
.da-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.da-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.da-header-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #ffffff;
}
.da-header-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--ink-900);
    margin: 0;
}
.da-header-subtitle {
    font-size: 11px;
    color: var(--ink-500);
    margin: 2px 0 0;
}
.da-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ── Buttons ── */
.da-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--ink-700);
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
}
.da-btn:hover {
    background: var(--bg-hover);
    color: var(--ink-900);
}
.da-btn.primary {
    background: var(--accent);
    color: #ffffff;
    border: none;
}
.da-btn.primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}
.da-btn.danger {
    border-color: var(--red);
    color: var(--red);
    background: var(--red-muted);
}
.da-btn.danger:hover {
    background: var(--red);
    color: #ffffff;
}
.da-close-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--ink-500);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--ease-out);
}
.da-close-btn:hover {
    background: var(--red-muted);
    color: var(--red);
    border-color: var(--red);
}

/* ── Progress Bar ── */
.da-progress-container {
    padding: 0 24px;
    background: var(--bg-surface);
    flex-shrink: 0;
    display: none;
    border-bottom: 1px solid var(--border);
}
.da-progress-container.active {
    display: block;
    padding-top: 12px;
    padding-bottom: 12px;
}
.da-progress-bar {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-elevated);
    overflow: hidden;
}
.da-progress-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, #6366f1, #a855f7, #ec4899);
    transition: width 0.3s ease;
    background-size: 200% 100%;
    animation: daProgressShimmer 2s ease infinite;
}
@keyframes daProgressShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.da-progress-text {
    font-size: 11px;
    color: var(--ink-500);
    margin-top: 6px;
    text-align: center;
}

/* ── Body / Scroll Area ── */
.da-body {
    flex: 1;
    display: flex;
    overflow: hidden;
    background: var(--bg-base);
}

/* ── Category Sections ── */
.da-category {
    margin-bottom: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-surface);
}
.da-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s var(--ease-out);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
}
.da-category-header:hover {
    background: var(--bg-hover);
}
.da-category-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}
.da-category-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}
.da-cat-1 .da-category-icon { background: linear-gradient(135deg, #22c55e, #16a34a); }
.da-cat-2 .da-category-icon { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.da-cat-3 .da-category-icon { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.da-cat-4 .da-category-icon { background: linear-gradient(135deg, #f59e0b, #d97706); }
.da-cat-5 .da-category-icon { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.da-cat-6 .da-category-icon { background: linear-gradient(135deg, #ef4444, #dc2626); }
.da-cat-7 .da-category-icon { background: linear-gradient(135deg, #ec4899, #db2777); }
.da-cat-8 .da-category-icon { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.da-cat-9 .da-category-icon { background: linear-gradient(135deg, #f97316, #ea580c); }
.da-cat-custom .da-category-icon { background: var(--accent-gradient); }

.da-category-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink-900);
}
.da-category-count {
    font-size: 12px;
    color: var(--ink-500);
    margin-top: 1px;
}
.da-category-stats {
    display: flex;
    align-items: center;
    gap: 8px;
}
.da-stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 600;
}
.da-stat-badge.positive {
    background: var(--green-muted);
    color: var(--green);
}
.da-stat-badge.negative {
    background: var(--red-muted);
    color: var(--red);
}
.da-stat-badge.warning {
    background: var(--yellow-muted);
    color: var(--yellow);
}
.da-stat-badge.neutral {
    background: var(--bg-hover);
    color: var(--ink-500);
}
.da-category-chevron {
    font-size: 12px;
    color: var(--ink-500);
    transition: transform 0.3s var(--ease-out);
    margin-left: 12px;
}
.da-category.collapsed .da-category-chevron {
    transform: rotate(-90deg);
}
.da-category-body {
    padding: 8px 12px 12px;
    background: var(--bg-surface);
}
.da-category.collapsed .da-category-body {
    display: none;
}

/* ── Question Card ── */
.da-question-card {
    margin: 8px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    overflow: hidden;
    transition: border-color 0.2s var(--ease-out);
}
.da-question-card:hover {
    border-color: var(--accent);
}
.da-question-card.sentiment-positive { border-left: 3px solid var(--green); }
.da-question-card.sentiment-negative { border-left: 3px solid var(--red); }
.da-question-card.sentiment-warning { border-left: 3px solid var(--yellow); }
.da-question-card.sentiment-neutral { border-left: 3px solid var(--ink-500); }

.da-question-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 12px 16px;
    gap: 12px;
}
.da-question-number {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.da-question-text {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink-900);
    line-height: 1.6;
}
.da-question-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}
.da-icon-btn {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--bg-elevated);
    color: var(--ink-500);
    font-size: 11px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--ease-out);
}
.da-icon-btn:hover {
    background: var(--bg-hover);
    color: var(--accent);
}
.da-icon-btn.refreshing {
    animation: daSpin 1s linear infinite;
}
@keyframes daSpin {
    to { transform: rotate(360deg); }
}

/* ── Sentiment Badge ── */
.da-sentiment {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}
.da-sentiment.positive {
    background: var(--green-muted);
    color: var(--green);
}
.da-sentiment.negative {
    background: var(--red-muted);
    color: var(--red);
}
.da-sentiment.warning {
    background: var(--yellow-muted);
    color: var(--yellow);
}
.da-sentiment.neutral {
    background: var(--bg-elevated);
    color: var(--ink-500);
}

/* ── Answer Area ── */
.da-answer-body {
    padding: 0 16px 12px;
}
.da-answer-content {
    font-size: 15px;
    line-height: 1.6;
    color: var(--ink-700);
}
.da-answer-content p {
    margin: 10px 0;
    line-height: 1.6;
}
.da-answer-content h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink-900);
    margin: 12px 0 6px;
}
.da-answer-content strong {
    color: var(--ink-900);
}
.da-answer-content mark, .da-highlight {
    background: rgba(245, 158, 11, 0.25);
    border-bottom: 1.5px solid rgba(245, 158, 11, 0.6);
    border-radius: 2px;
    padding: 0 4px;
    color: var(--ink-900);
    font-weight: 600;
}
.da-answer-content u {
    text-decoration: underline var(--accent, #6366f1) 1.5px;
    text-underline-offset: 3px;
}
.da-answer-content blockquote {
    border-left: 3px solid var(--accent);
    margin: 6px 0;
    padding: 4px 10px;
    background: var(--bg-elevated);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--ink-500);
    font-size: 12px;
}
.da-answer-content ul, .da-answer-content ol {
    margin: 12px 0;
    padding-left: 20px;
}
.da-answer-content li {
    margin: 8px 0;
    line-height: 1.6;
}

/* ── Interpretation Box ── */
.da-interpretation {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.da-interpretation.positive {
    background: var(--green-muted);
    border: 1px solid var(--green);
    color: var(--green);
}
.da-interpretation.negative {
    background: var(--red-muted);
    border: 1px solid var(--red);
    color: var(--red);
}
.da-interpretation.warning {
    background: var(--yellow-muted);
    border: 1px solid var(--yellow);
    color: var(--yellow);
}
.da-interpretation.neutral {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--ink-700);
}
.da-interpretation-icon {
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ── Source Links ── */
.da-sources {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.da-source-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-muted);
    text-decoration: none;
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease-out);
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.da-source-link:hover {
    background: var(--bg-hover);
    color: var(--accent-hover);
}

/* ── Unanswered State ── */
.da-unanswered {
    padding: 12px 16px;
    text-align: center;
    color: var(--ink-500);
    font-size: 14px;
    font-style: italic;
}

/* ── Loading Skeleton ── */
.da-skeleton {
    padding: 12px 16px;
}
.da-skeleton-line {
    height: 12px;
    border-radius: var(--radius-sm);
    background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-hover) 50%, var(--bg-elevated) 75%);
    background-size: 200% 100%;
    animation: daSkeletonPulse 1.5s ease infinite;
    margin-bottom: 8px;
}
.da-skeleton-line:nth-child(1) { width: 90%; }
.da-skeleton-line:nth-child(2) { width: 75%; }
.da-skeleton-line:nth-child(3) { width: 60%; }

@keyframes daSkeletonPulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── Question Edit Inline ── */
.da-edit-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-base);
    color: var(--ink-900);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    min-height: 40px;
}
.da-edit-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-muted);
}
.da-edit-actions {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    justify-content: flex-end;
}

/* ── Custom Question Input ── */
.da-custom-input-row {
    display: flex;
    gap: 10px;
    padding: 12px;
    align-items: center;
}
.da-custom-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-base);
    color: var(--ink-900);
    font-size: 14px;
    font-family: inherit;
}
.da-custom-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-muted);
}
.da-custom-input::placeholder {
    color: var(--ink-400);
}

/* ── Empty State ── */
.da-empty-state {
    text-align: center;
    padding: 60px 24px;
}
.da-empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}
.da-empty-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink-900);
    margin-bottom: 8px;
}
.da-empty-text {
    font-size: 13px;
    color: var(--ink-500);
    max-width: 400px;
    margin: 0 auto 20px;
    line-height: 1.6;
}

/* ── Report Summary Bar ── */
.da-summary-bar {
    display: flex;
    gap: 16px;
    padding: 10px 24px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow-x: auto;
}
.da-summary-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 85px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.2s var(--ease-out);
}
.da-summary-stat.clickable {
    cursor: pointer;
}
.da-summary-stat.clickable:hover {
    background: var(--bg-hover);
}
.da-summary-stat.clickable.active-filter {
    background: var(--accent-muted);
    outline: 1.5px solid var(--accent);
}
.da-summary-value {
    font-size: 18px;
    font-weight: 800;
    color: var(--ink-900);
}
.da-summary-value.green { color: var(--green); }
.da-summary-value.red { color: var(--red); }
.da-summary-value.yellow { color: var(--yellow); }
.da-summary-value.gray { color: var(--ink-500); }
.da-summary-label {
    font-size: 10px;
    color: var(--ink-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-top: 2px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .da-header {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 8px;
    }
    .da-header-actions {
        width: 100%;
        justify-content: flex-end;
    }
    .da-body {
        flex-direction: column;
        overflow-y: auto;
    }
    .da-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        max-height: 180px;
    }
    .da-summary-bar {
        padding: 10px 12px;
        gap: 10px;
    }
    .da-question-header {
        padding: 10px 12px;
        flex-wrap: wrap;
    }
    .da-custom-input-row { flex-direction: column; }
    .da-category-header { padding: 12px 14px; }
    .btn-deep-analyse .btn-text { display: none; }
}

/* ── Split Screen Research Layout ── */
.da-sidebar {
    width: 260px;
    border-right: 1px solid var(--border);
    background: var(--bg-surface);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow-y: auto;
}
.da-sidebar-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px 20px 8px;
    border-bottom: 1px solid var(--border-subtle);
}
.da-sidebar-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-700);
    border-left: 3px solid transparent;
    transition: all 0.2s var(--ease-out);
    border-bottom: 1px solid var(--border-subtle);
    user-select: none;
}
.da-sidebar-item:hover {
    background: var(--bg-hover);
    color: var(--ink-900);
}
.da-sidebar-item.active {
    background: var(--accent-muted);
    color: var(--accent);
    border-left-color: var(--accent);
}
.da-sidebar-item-left {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.da-sidebar-item-icon {
    font-size: 13px;
    flex-shrink: 0;
}
.da-sidebar-item-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.da-sidebar-badge-container {
    display: flex;
    gap: 4px;
    align-items: center;
}
.da-sidebar-badge {
    font-size: 9px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: var(--radius-sm);
}
.da-sidebar-badge.red { background: var(--red-muted); color: var(--red); }
.da-sidebar-badge.yellow { background: var(--yellow-muted); color: var(--yellow); }
.da-sidebar-badge.green { background: var(--green-muted); color: var(--green); }