/* Enhanced Chat Interface Styles */

/* Message timestamp styles */
.message-header {
    display: flex;
    justify-content: space-between;
    padding: 0 1rem 0.5rem 1rem;
    font-size: 0.8rem;
    color: #64748b;
}

.sender-label {
    font-weight: 500;
}

.message-timestamp {
    font-size: 0.75rem;
    color: #94a3b8;
}

.message-user .message-header {
    text-align: right;
}

.message-assistant .message-header {
    text-align: left;
}

/* Accessibility Improvements */
.message:focus {
    outline: 2px solid #667eea;
    border-radius: 8px;
}

.side-panel:focus {
    outline: 2px solid #667eea;
}

button:focus-visible,
textarea:focus-visible,
input:focus-visible,
.clickable:focus-visible {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Mobile Experience Optimization */
@media (max-width: 768px) {
    /* Adjustments for smaller screens */
    .message-header {
        padding: 0 0.5rem 0.25rem 0.5rem;
        font-size: 0.75rem;
    }

    /* Mobile swipe gestures */
    .chat-container {
        position: relative;
        touch-action: pan-y;
    }

    /* Improved touch targets for mobile */
    .feedback-btn, .icon-button, .primary-button {
        min-height: 44px;
        min-width: 44px;
    }
}

/* Mobile swipe indicator */
.swipe-indicator {
    position: absolute;
    top: 50%;
    right: -5px;
    width: 30px;
    height: 50px;
    background: rgba(102, 126, 234, 0.2);
    border-top-left-radius: 25px;
    border-bottom-left-radius: 25px;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 90;
    opacity: 0.7;
    box-shadow: -1px 0 3px rgba(0, 0, 0, 0.1);
    animation: pulse 2s infinite;
}

/* Only show swipe indicator on smaller screens */
@media (max-width: 768px) {
    .swipe-indicator {
        display: flex;
    }
}

.swipe-indicator svg {
    width: 16px;
    height: 16px;
    stroke: #667eea;
}

/* Conversation export/import */
.export-import-buttons {
    display: flex;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.search-conversations {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.search-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.875rem;
}

.search-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

/* Improved error handling */
.retry-button {
    background: #f8fafc;
    border: 1px solid #ef4444;
    color: #ef4444;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.retry-button:hover {
    background: #fef2f2;
}

.error-details {
    background: #fef2f2;
    padding: 0.5rem;
    border-radius: 6px;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #b91c1c;
    max-height: 100px;
    overflow-y: auto;
}

/* File upload for import */
.file-upload {
    display: none;
}

.file-upload-label {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: #1e293b;
    transition: all 0.2s;
}

.file-upload-label:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
}

/* Auto-retry status */
.auto-retry-status {
    font-size: 0.8rem;
    color: #f59e0b;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.retry-countdown {
    font-weight: 600;
}