:root {
    --cpai-primary: #2563eb;
    --cpai-slate: #f4f6fb;
    --cpai-text: #0f172a;
    --cpai-border: #dfe7f3;
    --cpai-shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.08);
    --cpai-font-ur: 'Noto Nastaliq Urdu', 'Noto Naskh Arabic', Georgia, serif;
    --cpai-font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.cpai-tsb-wrapper {
    font-family: var(--cpai-font-en);
    background: var(--cpai-slate);
    color: var(--cpai-text);
    width: 100%;
}

.cpai-tsb-wrapper * { box-sizing: border-box; }

.cpai-tsb-main-title {
    text-align: center;
    padding: 1.25rem 1rem;
    font-size: 1.15rem;
    font-weight: 800;
    line-height: 1.35;
    background: #fff;
    border-bottom: 1px solid var(--cpai-border);
}

.cpai-tsb-sticky-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--cpai-border);
}

.cpai-tsb-platforms-nav {
    display: flex;
    gap: 0.55rem;
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
}

.cpai-platform-tab {
    border: 1px solid var(--cpai-border);
    background: #fff;
    color: #334155;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.45rem 0.7rem;
    white-space: nowrap;
    cursor: pointer;
}

.cpai-platform-tab.active {
    background: var(--cpai-primary);
    border-color: var(--cpai-primary);
    color: #fff;
}

.cpai-tsb-language-selector {
    display: flex;
    background: #eef2ff;
    border-radius: 999px;
    padding: 3px;
    flex-shrink: 0;
}

.cpai-lang-btn {
    border: none;
    background: transparent;
    color: #334155;
    font-weight: 700;
    border-radius: 999px;
    padding: 0.35rem 0.65rem;
    cursor: pointer;
}

.cpai-lang-btn.active {
    background: #fff;
    color: var(--cpai-primary);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.18);
}

.cpai-tsb-content {
    max-width: 860px;
    margin: 0 auto;
    padding: 1rem 0.75rem 3rem;
    min-height: 60vh;
}

.cpai-platform-container {
    display: none;
    --cpai-platform-accent: var(--cpai-primary);
    --cpai-platform-soft: #eff6ff;
    --cpai-platform-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
}

.cpai-platform-container.active { display: block; }

.cpai-progress-shell {
    margin-bottom: 1rem;
    border: 1px solid rgba(37, 99, 235, 0.18);
    background: var(--cpai-platform-soft);
    border-radius: 16px;
    padding: 0.85rem;
    box-shadow: var(--cpai-shadow-soft);
}

.cpai-progress-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}

.cpai-progress-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 800;
}

.cpai-progress-text {
    font-size: 0.8rem;
    font-weight: 700;
    color: #334155;
}

.cpai-progress-track {
    background: #fff;
    border-radius: 999px;
    overflow: hidden;
    height: 0.65rem;
}

.cpai-progress-bar {
    height: 100%;
    width: 0;
    background: var(--cpai-platform-gradient);
    transition: width 0.35s ease;
}

.cpai-question-card {
    background: #fff;
    border-radius: 18px;
    border: 1px solid var(--cpai-border);
    box-shadow: var(--cpai-shadow-soft);
    padding: 1rem;
    margin-bottom: 1rem;
}

.cpai-question-card.is-complete {
    border-color: rgba(37, 99, 235, 0.35);
}

.cpai-question-text {
    font-size: 1rem;
    line-height: 1.4;
    font-weight: 800;
    margin: 0 0 0.9rem;
}

.cpai-question-image-wrap {
    margin: 0 0 0.9rem;
}

.cpai-question-image {
    display: block;
    width: 100%;
    max-height: 260px;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid #e2e8f0;
}

.cpai-compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 0.9rem;
}

.cpai-compare-panel {
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 0.65rem;
    background: #f8fafc;
}

.cpai-compare-panel.right {
    border-color: rgba(37, 99, 235, 0.35);
    background: rgba(37, 99, 235, 0.06);
}

.cpai-compare-visual {
    min-height: 92px;
    border-radius: 10px;
    background: linear-gradient(145deg, #e2e8f0 0%, #f8fafc 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.cpai-compare-panel.right .cpai-compare-visual {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.14) 0%, #ffffff 100%);
}

.cpai-compare-visual i {
    font-size: 1.4rem;
    color: #64748b;
}

.cpai-compare-image {
    width: 100%;
    height: 92px;
    object-fit: cover;
    border-radius: 8px;
}

.cpai-compare-panel.right .cpai-compare-visual i {
    color: var(--cpai-platform-accent);
}

.cpai-compare-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 800;
    margin-bottom: 0.2rem;
}

.cpai-compare-label {
    font-size: 0.78rem;
    color: #475569;
    font-weight: 600;
}

.cpai-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
}

.cpai-btn {
    border-radius: 10px;
    border: 1px solid #cbd5e1;
    background: #fff;
    padding: 0.65rem 0.5rem;
    font-weight: 800;
    cursor: pointer;
}

.cpai-btn.btn-no { color: #b91c1c; }
.cpai-btn.btn-yes { color: #047857; }
.cpai-btn.selected-no {
    background: #fee2e2;
    border-color: #fca5a5;
}
.cpai-btn.selected-yes {
    background: #d1fae5;
    border-color: #6ee7b7;
}

.cpai-optimization-panel {
    margin-top: 0.85rem;
    border-radius: 14px;
    border: 1px solid rgba(37, 99, 235, 0.24);
    background: linear-gradient(180deg, #ffffff 0%, var(--cpai-platform-soft) 100%);
    padding: 0.8rem;
    display: none;
}

.cpai-optimization-title {
    font-size: 0.9rem;
    font-weight: 800;
    margin-bottom: 0.65rem;
    color: #0f172a;
}

.cpai-suggestion-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.cpai-suggestion-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.5rem;
    font-size: 0.8rem;
}

.cpai-suggestion-icon {
    color: var(--cpai-platform-accent);
    margin-top: 2px;
}

.cpai-tips-card,
.cpai-tool-card,
.cpai-prompt-card {
    margin-top: 0.65rem;
    border: 1px solid #dbeafe;
    border-radius: 10px;
    background: #fff;
    padding: 0.6rem;
}

.cpai-tips-title,
.cpai-tool-title,
.cpai-prompt-title {
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 0.35rem;
}

.cpai-tips-copy,
.cpai-tool-slot,
.cpai-prompt-slot {
    margin: 0;
    color: #334155;
    font-size: 0.8rem;
}

.cpai-tool-slot {
    min-height: 2.1rem;
    border: 1px dashed #93c5fd;
    border-radius: 8px;
    padding: 0.45rem;
    background: #f8fbff;
}


.cpai-prompt-slot {
    min-height: 3rem;
    white-space: pre-wrap;
    border: 1px dashed #93c5fd;
    border-radius: 8px;
    padding: 0.65rem;
    background: #f8fbff;
    font-family: inherit;
}

.cpai-tool-slot a {
    color: #1d4ed8;
    font-weight: 700;
    text-decoration: underline;
}

.cpai-tool-slot p,
.cpai-tool-slot ul,
.cpai-tool-slot ol {
    margin: 0 0 0.45rem;
}

.cpai-tool-slot p:last-child,
.cpai-tool-slot ul:last-child,
.cpai-tool-slot ol:last-child {
    margin-bottom: 0;
}

.cpai-success-msg {
    margin-top: 0.65rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: #0f766e;
    display: none;
}

.cpai-next-phase-btn {
    width: 100%;
    margin-top: 1.2rem;
    border: none;
    border-radius: 12px;
    background: var(--cpai-platform-gradient);
    color: #fff;
    padding: 0.85rem;
    font-weight: 800;
    cursor: pointer;
}

.cpai-empty-state {
    border: 1px dashed #cbd5e1;
    border-radius: 14px;
    background: #fff;
    text-align: center;
    padding: 1rem;
    color: #475569;
    font-weight: 600;
}

.cpai-compare-images {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    justify-content: center;
    align-items: flex-end;
}

.cpai-compare-img-wrap {
    flex: 1;
    text-align: center;
    position: relative;
    max-width: 220px;
}

.cpai-compare-img-wrap img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

.cpai-compare-img-wrap.cpai-needs-improvement img {
    border: 2px solid #e74c3c;
}

.cpai-compare-img-wrap.cpai-recommended img {
    border: 2px solid #27ae60;
}

.cpai-img-badge {
    position: absolute;
    bottom: 8px;
    right: 8px;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #fff;
}

.cpai-badge-bad {
    background: #e74c3c;
}

.cpai-badge-good {
    background: #27ae60;
}

.cpai-focus-pulse {
    animation: cpaiPulse 1.1s ease;
}

@keyframes cpaiPulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.28); }
    100% { box-shadow: 0 0 0 16px transparent; }
}

.cpai-tsb-loading {
    text-align: center;
    color: #64748b;
    padding: 2rem;
}

.cpai-tsb-wrapper[dir="rtl"] {
    font-family: var(--cpai-font-ur);
}

@media (min-width: 768px) {
    .cpai-tsb-main-title {
        padding: 1.6rem 1rem;
        font-size: 1.45rem;
    }

    .cpai-tsb-sticky-header {
        padding: 0.75rem 1rem;
    }

    .cpai-tsb-content {
        padding: 1.5rem 1rem 3.5rem;
    }

    .cpai-question-card {
        padding: 1.2rem;
    }

    .cpai-compare-visual {
        min-height: 130px;
    }

    .cpai-question-text {
        font-size: 1.1rem;
    }
}