/* ============================================
   SHIELD AI — Conversational Interface Styles
   ============================================ */

/* --- Messages Container --- */
#panel-ai .ai-messages {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 16px;
}

/* --- Message Row --- */
.sai-msg {
    display: flex;
    gap: 8px;
    max-width: 100%;
    animation: sai-fade-in 0.2s ease;
}

.sai-msg-user {
    flex-direction: row-reverse;
}

.sai-msg-system {
    justify-content: center;
}

/* --- Avatar --- */
.sai-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 2px;
}

.sai-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.sai-avatar-ai {
    background: rgba(74, 108, 247, 0.15);
    color: var(--accent-blue);
}

.sai-avatar-operator {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
}

/* --- Bubble --- */
.sai-bubble {
    padding: 8px 12px;
    border-radius: 12px;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    max-width: 85%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.sai-msg-user .sai-bubble {
    background: rgba(74, 108, 247, 0.15);
    color: var(--text-primary);
    border-bottom-right-radius: 4px;
}

.sai-msg-ai .sai-bubble,
.sai-msg-welcome .sai-bubble {
    background: var(--bg-card);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.sai-msg-welcome .sai-bubble {
    background: transparent;
}

.sai-msg-operator .sai-bubble {
    background: var(--bg-card);
    color: var(--text-primary);
    border-left: 2px solid var(--accent-cyan);
    border-bottom-left-radius: 4px;
}

.sai-msg-escalation .sai-bubble {
    background: var(--bg-card);
    color: var(--text-secondary);
    font-style: italic;
    border-bottom-left-radius: 4px;
}

.sai-msg-system .sai-bubble {
    background: transparent;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    text-align: center;
    padding: 4px 8px;
}

/* --- Timestamp --- */
.sai-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    padding: 0 4px;
}

.sai-msg-user .sai-time {
    text-align: right;
}

/* --- Date Separator --- */
.sai-date-sep {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 8px 0;
    color: var(--text-muted);
    font-size: 10px;
}

.sai-date-sep::before,
.sai-date-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
}

/* --- File Preview --- */
.sai-file-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-top: 4px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    max-width: 220px;
}

.sai-file-preview img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.sai-file-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.sai-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.sai-file-size {
    font-size: 10px;
    color: var(--text-muted);
}

/* --- Typing Indicator --- */
.sai-typing {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 0 16px 8px;
}

.sai-typing.visible {
    display: flex;
}

.sai-typing-dots {
    display: flex;
    gap: 3px;
    padding: 8px 12px;
    background: var(--bg-card);
    border-radius: 12px;
    border-bottom-left-radius: 4px;
}

.sai-typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: sai-dot-bounce 1.4s infinite ease-in-out both;
}

.sai-typing-dots span:nth-child(1) { animation-delay: 0s; }
.sai-typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.sai-typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes sai-dot-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* --- File Upload Button --- */
.sai-file-btn {
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.sai-file-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* --- Disclaimer --- */
.sai-disclaimer {
    padding: 6px 16px 8px;
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* --- Unread Badge on btn-ai --- */
.sai-unread-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    background: var(--accent-red);
    color: white;
    font-size: 10px;
    font-weight: 700;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    line-height: 1;
}

/* --- Escalation Prompt Buttons --- */
.sai-prompt-btns {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding: 8px 0;
    animation: sai-fade-in 0.2s ease;
}

.sai-btn {
    padding: 7px 14px;
    border-radius: 8px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
}

.sai-btn-primary {
    background: var(--accent-blue);
    color: #fff;
}

.sai-btn-primary:hover {
    background: var(--accent-blue-dark, #2563eb);
    transform: translateY(-1px);
}

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

.sai-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

/* --- New Conversation Button (panel header — matches .panel-close style) --- */
.sai-header-btn {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    transition: all 0.2s ease;
}

.sai-header-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

/* --- Context Bar — blue tint instead of green --- */
#panel-ai .ai-context {
    background: rgba(74, 108, 247, 0.08);
    border-bottom-color: rgba(74, 108, 247, 0.15);
}

/* --- Fade-in Animation --- */
@keyframes sai-fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- Featured Article Quick Links --- */
.sai-featured-links {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 4px 0 8px;
    animation: sai-fade-in 0.3s ease;
}

.sai-featured-btn {
    padding: 6px 12px;
    background: rgba(74, 108, 247, 0.08);
    border: 1px solid rgba(74, 108, 247, 0.2);
    border-radius: 16px;
    color: var(--accent-blue);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.sai-featured-btn:hover {
    background: rgba(74, 108, 247, 0.15);
    border-color: rgba(74, 108, 247, 0.35);
    transform: translateY(-1px);
}

/* --- Read More / Expandable Content --- */
.sai-expand-wrap {
    padding: 0 0 4px 36px;
    animation: sai-fade-in 0.2s ease;
}

.sai-expand-btn {
    background: none;
    border: none;
    color: var(--accent-blue);
    font-size: var(--font-size-xs);
    cursor: pointer;
    padding: 2px 0;
    font-weight: 500;
}

.sai-expand-btn:hover {
    text-decoration: underline;
}

.sai-expand-content {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px;
    margin-top: 6px;
    font-size: var(--font-size-xs);
    line-height: 1.6;
    color: var(--text-secondary);
    border-left: 2px solid rgba(74, 108, 247, 0.3);
}

.sai-expand-content p {
    margin: 0 0 8px;
}

.sai-expand-content p:last-child {
    margin-bottom: 0;
}

/* --- FAQ within expanded content --- */
.sai-faq-header {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    margin: 12px 0 6px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sai-faq-item {
    margin-bottom: 8px;
}

.sai-faq-q {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.sai-faq-a {
    color: var(--text-secondary);
}

/* --- Feedback Buttons --- */
.sai-feedback-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0 4px 36px;
    animation: sai-fade-in 0.2s ease;
}

.sai-feedback-label {
    font-size: 11px;
    color: var(--text-muted);
}

.sai-feedback-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
    line-height: 1;
}

.sai-feedback-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-hover);
    transform: scale(1.1);
}

.sai-feedback-thanks {
    font-size: 11px;
    color: var(--text-muted);
    font-style: italic;
}

/* --- Related Article Links --- */
.sai-related-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    padding: 2px 0 6px 36px;
    animation: sai-fade-in 0.2s ease;
}

.sai-related-label {
    font-size: 11px;
    color: var(--text-muted);
}

.sai-related-btn {
    background: none;
    border: none;
    color: var(--accent-blue);
    font-size: 11px;
    cursor: pointer;
    padding: 2px 4px;
    text-decoration: underline;
    text-decoration-color: rgba(74, 108, 247, 0.3);
}

.sai-related-btn:hover {
    text-decoration-color: var(--accent-blue);
}

/* --- Disambiguation Options --- */
.sai-disambig-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 4px 0 8px 36px;
    animation: sai-fade-in 0.2s ease;
}

.sai-disambig-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 12px;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-base);
}

.sai-disambig-btn:hover {
    border-color: var(--accent-blue);
    background: rgba(74, 108, 247, 0.06);
    transform: translateY(-1px);
}

.sai-disambig-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.sai-disambig-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

/* --- Upgrade CTA Banner (tier-gated articles) --- */
.sai-upgrade-cta {
    margin: 4px 0;
    padding: 10px 12px;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(74, 108, 247, 0.08) 0%, rgba(74, 108, 247, 0.03) 100%);
    border: 1px solid rgba(74, 108, 247, 0.2);
}

.sai-upgrade-cta-header {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.sai-upgrade-cta-link {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(74, 108, 247, 0.1);
    transition: background 0.15s, color 0.15s;
}

.sai-upgrade-cta-link:hover {
    background: rgba(74, 108, 247, 0.18);
    color: var(--accent);
}

/* --- Upgrade Glimpse Message (Pro insight preview) --- */
.sai-glimpse-message {
    margin: 8px 0;
    padding: 12px 14px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.06) 0%, rgba(74, 108, 247, 0.04) 100%);
    border: 1px solid rgba(34, 197, 94, 0.25);
    animation: sai-fade-in 0.3s ease;
}

.sai-glimpse-header {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.01em;
}

.sai-glimpse-body {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 8px;
}

.sai-glimpse-footer {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: 8px;
    font-style: italic;
}

.sai-glimpse-cta {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 6px;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.85) 0%, rgba(74, 108, 247, 0.85) 100%);
    transition: opacity 0.15s;
}

.sai-glimpse-cta:hover {
    opacity: 0.88;
    color: #fff;
}

/* --- Hero Response Card --- */
.sai-hero-card {
    margin: 6px 0;
    padding: 14px 16px;
    border-radius: 10px;
    background: var(--bg-card);
    border-left: 3px solid var(--accent-blue);
    animation: sai-fade-in 0.3s ease;
}

.sai-hero-green  { border-left-color: var(--accent-green, #22c55e); }
.sai-hero-amber  { border-left-color: var(--accent-amber, #f59e0b); }
.sai-hero-blue   { border-left-color: var(--accent-blue, #4a6cf7); }

.sai-hero-header {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    letter-spacing: 0.01em;
}

.sai-hero-headline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sai-hero-body {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
    font-family: var(--font-mono, monospace);
    white-space: pre-wrap;
}

.sai-hero-insights {
    margin: 8px 0;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sai-hero-insight {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 4px;
}

.sai-hero-warning {
    font-size: var(--font-size-xs);
    color: var(--accent-amber, #f59e0b);
    line-height: 1.5;
    margin-bottom: 4px;
    font-weight: 500;
}

.sai-hero-upgrade-hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    font-style: italic;
    margin: 6px 0;
    padding: 6px 8px;
    background: rgba(74, 108, 247, 0.05);
    border-radius: 6px;
}

.sai-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sai-hero-action-btn {
    padding: 5px 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(74, 108, 247, 0.08);
    border: 1px solid rgba(74, 108, 247, 0.2);
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
}

.sai-hero-action-btn:hover {
    background: rgba(74, 108, 247, 0.15);
    border-color: rgba(74, 108, 247, 0.35);
    color: var(--accent-blue);
    transform: translateY(-1px);
}

.sai-hero-meta {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: right;
}

/* --- Mobile: Full-Screen Panel --- */
@media (max-width: 768px) {
    #panel-ai.open {
        width: 100vw;
        height: 100dvh;
        top: 0;
        right: 0;
        border: none;
        border-radius: 0;
    }

    #panel-ai .panel-close {
        width: 44px;
        height: 44px;
        font-size: 22px;
    }

    #panel-ai .ai-input-area {
        position: sticky;
        bottom: 0;
    }

    .sai-bubble {
        max-width: 90%;
    }
}