/* Medical AI Assistant - ChatGPT-like UI with Medical Theme */

:root {
    /* Medical Theme Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #059669;
    --accent-color: #dc2626;
    --success-color: #16a34a;
    --warning-color: #d97706;

    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;

    /* Dark Theme Colors */
    --dark-bg-primary: #0f172a;
    --dark-bg-secondary: #1e293b;
    --dark-bg-tertiary: #334155;
    --dark-text-primary: #f8fafc;
    --dark-text-secondary: #cbd5e1;
    --dark-text-muted: #94a3b8;
    --dark-border-color: #475569;
    --dark-border-hover: #64748b;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Dark theme */
[data-theme="dark"] {
    --bg-primary: var(--dark-bg-primary);
    --bg-secondary: var(--dark-bg-secondary);
    --bg-tertiary: var(--dark-bg-tertiary);
    --text-primary: var(--dark-text-primary);
    --text-secondary: var(--dark-text-secondary);
    --text-muted: var(--dark-text-muted);
    --border-color: var(--dark-border-color);
    --border-hover: var(--dark-border-hover);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* App Container */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}
.app-overlay { position: fixed; inset:0; background: rgba(0,0,0,0.2); display:none; z-index: 1000; }
.app-overlay.show { display:block; }

/* Sidebar */
.sidebar {
    width: 300px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal);
    z-index: 1001;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.new-chat-btn {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.new-chat-btn:hover {
    background-color: var(--primary-hover);
}

.user-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.user-profile:hover {
    background-color: var(--bg-tertiary);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.user-info {
    flex: 1;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.user-status {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.user-menu-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background-color var(--transition-fast);
}

.user-menu-btn:hover {
    background-color: var(--bg-tertiary);
}

.chat-sessions {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.chat-session {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    border: 1px solid transparent;
}

.chat-session:hover {
    background-color: var(--bg-tertiary);
}

.chat-session.active {
    background-color: var(--primary-color);
    color: white;
}

.chat-session-title {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.chat-session-time {
    font-size: 0.75rem;
    opacity: 0.7;
}

.chat-session-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.chat-session-meta {
    min-width: 0;
}

.chat-session-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: var(--spacing-xs);
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.chat-session:hover .chat-session-delete {
    opacity: 1;
}

.chat-session-delete:hover {
    color: var(--accent-color);
    background-color: var(--bg-tertiary);
}

.chat-session-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.chat-session-menu {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: var(--spacing-xs);
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.chat-session:hover .chat-session-menu {
    opacity: 1;
}

.chat-session-menu:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.chat-session-menu-popover {
    position: absolute;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs);
    display: none;
    z-index: 4000;
}

.chat-session-menu-popover.show {
    display: block;
}

.chat-session-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-radius: 6px;
    color: var(--text-secondary);
}

.chat-session-menu-item:hover {
    background-color: var(--bg-tertiary);
}

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.settings-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.settings-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
}

.chat-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    gap: var(--spacing-md);
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 6px;
    transition: background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: var(--bg-tertiary);
}

.sidebar-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 6px;
    transition: background-color var(--transition-fast);
    margin-left: auto;
}
.sidebar-close:hover { background-color: var(--bg-tertiary); }

.chat-title {
    flex: 1;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.message {
    display: flex;
    gap: var(--spacing-md);
    max-width: 100%;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.875rem;
}

.user-message .message-avatar {
    background-color: var(--primary-color);
    color: white;
}

.assistant-message .message-avatar {
    background-color: var(--secondary-color);
    color: white;
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-text {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    line-height: 1.6;
}

.user-message .message-text {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Tagged Title Styling */
.tagged-title {
    display: flex;
    align-items: center;
    margin: var(--spacing-lg) 0;
    position: relative;
    width: 100%;
}

.tagged-title-bar {
    width: 4px;
    height: 100%;
    background-color: #20b2aa; /* Teal/green color */
    border-radius: 2px;
    margin-right: 0;
    flex-shrink: 0;
    min-height: 40px;
}

.tagged-title-content {
    flex: 1;
    background-color: #f5f5f5; /* Light gray background */
    border-radius: 0 8px 8px 0;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-left: 0;
    display: flex;
    align-items: center;
    min-height: 40px;
}

.tagged-title-content h1,
.tagged-title-content h2,
.tagged-title-content h3,
.tagged-title-content h4,
.tagged-title-content h5,
.tagged-title-content h6 {
    margin: 0;
    color: #8b4513; /* Dark brown/maroon color */
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Blue Bubble Styling */
.blue-bubble {
    display: inline-block;
    background-color: #4a90e2; /* Medium blue */
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0 2px;
    white-space: nowrap;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.2;
    vertical-align: baseline;
}

/* Dark theme adjustments */
[data-theme="dark"] .tagged-title-content {
    background-color: #2a2a2a; /* Darker gray for dark theme */
}

[data-theme="dark"] .tagged-title-content h1,
[data-theme="dark"] .tagged-title-content h2,
[data-theme="dark"] .tagged-title-content h3,
[data-theme="dark"] .tagged-title-content h4,
[data-theme="dark"] .tagged-title-content h5,
[data-theme="dark"] .tagged-title-content h6 {
    color: #d4a574; /* Lighter brown for dark theme */
}

[data-theme="dark"] .blue-bubble {
    background-color: #5ba0f2; /* Slightly lighter blue for dark theme */
}

/* Ensure proper spacing and layout within message content */
.message-text .tagged-title {
    margin: var(--spacing-md) 0;
}

.message-text .tagged-title:first-child {
    margin-top: 0;
}

.message-text .tagged-title:last-child {
    margin-bottom: 0;
}

/* Ensure blue bubbles work well within paragraphs */
.message-text p .blue-bubble {
    margin: 0 4px;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 768px) {
    .tagged-title-content {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 36px;
    }
    
    .tagged-title-content h1,
    .tagged-title-content h2,
    .tagged-title-content h3,
    .tagged-title-content h4,
    .tagged-title-content h5,
    .tagged-title-content h6 {
        font-size: 0.8rem;
    }
    
    .blue-bubble {
        font-size: 0.8rem;
        padding: 3px 6px;
    }
}

.message-text p {
    margin-bottom: var(--spacing-md);
}

.message-text ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.message-text li {
    margin-bottom: var(--spacing-sm);
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-sm);
    text-align: right;
}

/* EMR Button Styles */
.message-actions {
    display: flex;
    align-items: center;
    margin-left: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.message:hover .message-actions {
    opacity: 1;
}

.emr-extract-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 6px;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.emr-extract-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    transform: scale(1.1);
}

.emr-extract-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.notification-success {
    border-left: 4px solid var(--success-color);
}

.notification-error {
    border-left: 4px solid var(--accent-color);
}

.notification-info {
    border-left: 4px solid var(--primary-color);
}

.notification-content i {
    font-size: 1.125rem;
}

.notification-success .notification-content i {
    color: var(--success-color);
}

.notification-error .notification-content i {
    color: var(--accent-color);
}

.notification-info .notification-content i {
    color: var(--primary-color);
}

/* Chat Input */
.chat-input-container {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: border-color var(--transition-fast);
    position: relative;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.chat-input {
    flex: 1;
    border: none;
    background: none;
    resize: none;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 3;
    color: var(--text-primary);
    outline: none;
    min-height: 20px;
    max-height: 120px;
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    flex-shrink: 0;
}

.send-btn:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.send-btn:disabled {
    background-color: var(--text-muted);
    cursor: not-allowed;
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.input-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.microphone-btn,
.attachment-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: var(--spacing-sm);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.microphone-btn:hover,
.attachment-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Audio recording states */
.microphone-btn.recording-ready {
    color: var(--text-primary);
}

.microphone-btn.recording-active {
    background-color: var(--error-color);
    color: white;
    animation: pulse 1s infinite;
}

.microphone-btn.recording-processing {
    background-color: var(--warning-color);
    color: white;
    animation: spin 1s linear infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Recording indicator */
.recording-indicator {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--error-color);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: none;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.recording-indicator i {
    margin-right: 6px;
    animation: pulse 1s infinite;
}

/* Audio messages */
.audio-error-message,
.audio-success-message {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: none;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.audio-error-message {
    background-color: var(--error-color);
    color: white;
}

.audio-success-message {
    background-color: var(--success-color);
    color: white;
}

/* Audio Recording Modal */
.audio-recording-modal {
    max-width: 400px;
    text-align: center;
}

.recording-container {
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.microphone-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.wave-animation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 60px;
    margin: 1rem 0;
}

.wave-bar {
    width: 4px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 2px;
    animation: wave 1.2s ease-in-out infinite;
}

.wave-bar:nth-child(1) { animation-delay: 0s; }
.wave-bar:nth-child(2) { animation-delay: 0.1s; }
.wave-bar:nth-child(3) { animation-delay: 0.2s; }
.wave-bar:nth-child(4) { animation-delay: 0.3s; }
.wave-bar:nth-child(5) { animation-delay: 0.4s; }
.wave-bar:nth-child(6) { animation-delay: 0.5s; }
.wave-bar:nth-child(7) { animation-delay: 0.6s; }
.wave-bar:nth-child(8) { animation-delay: 0.7s; }

@keyframes wave {
    0%, 100% {
        height: 20px;
        background-color: var(--primary-color);
    }
    50% {
        height: 40px;
        background-color: var(--accent-color);
    }
}

.recording-status {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.recording-timer {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

/* Voice detection states */
.recording-container.listening .wave-bar {
    animation-play-state: running;
}

.recording-container.silent .wave-bar {
    animation-play-state: paused;
    height: 10px;
    background-color: var(--text-muted);
}

.recording-container.processing .wave-bar {
    animation: pulse 1s ease-in-out infinite;
}

.recording-container.processing .microphone-icon {
    animation: spin 1s linear infinite;
}

/* Modal animations */
.modal.show .audio-recording-modal {
    animation: slideInUp 0.3s ease-out;
}

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

/* Transcribed text highlighting */
.chat-input.transcribed {
    border-color: var(--success-color);
    background-color: rgba(34, 197, 94, 0.05);
}

.chat-input.transcribed::placeholder {
    color: var(--success-color);
}

/* Audio recording button enhancements */
.microphone-btn.recording-enabled {
    position: relative;
}

.microphone-btn.recording-enabled::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background-color var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.875rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: var(--spacing-sm);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

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

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Hidden system access styling */
.system-access {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    opacity: 0.05;
}

.system-access:hover {
    opacity: 0.4;
}

.system-access-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0;
    font-size: 0.8rem;
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.loading-spinner i {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--accent-color);
}

.loading-text {
    font-size: 1.125rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 300px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1001;
    }

    .sidebar.show {
        transform: translateX(0);
        z-index: 1002;
    }

    .sidebar-toggle {
        display: block;
    }

    .chat-title {
        font-size: 1rem;
    }

    .app-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .app-overlay.show {
        display: block;
        opacity: 1;
    }

    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .chat-header {
        padding: var(--spacing-md);
    }

    .chat-messages {
        padding: var(--spacing-md);
    }

    .chat-input-container {
        padding: var(--spacing-md);
    }

    .input-footer {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-in-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Medical-specific styling */
.medical-warning {
    background-color: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.3);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.medical-warning .warning-icon {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
}

.medical-info {
    background-color: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.medical-info .info-icon {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.patient-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.patient-header {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.patient-input-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}
.patient-typeahead { position: relative; }
.patient-suggestions { position:absolute; top: 100%; left:0; right:0; background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 6px; box-shadow: var(--shadow-lg); z-index: 3500; max-height: 220px; overflow-y: auto; }
.patient-suggestion { padding: 8px 10px; cursor:pointer; color: var(--text-primary); }
.patient-suggestion:hover { background: var(--bg-tertiary); }

.patient-input {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.patient-load-btn {
    padding: 8px 10px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}
.patient-load-btn:hover {
    background: var(--primary-hover);
}
.patient-create-link {
    display:inline-flex; align-items:center;
    justify-content:center; padding:8px 10px;
    border: 1px solid var(--border-color);
    border-radius:6px; color: var(--text-secondary);
    text-decoration:none;
}
.patient-create-link:hover { background: var(--bg-tertiary); }

.patient-status {
    margin-top: var(--spacing-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.patient-actions {
    margin-top: var(--spacing-sm);
    text-align: center;
}

.emr-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.emr-link:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-1px);
    color: white;
}

/* Sidebar mobile behavior */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        transform: translateX(-100%);
        width: 85vw;
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .main-content {
        position: relative;
        z-index: 1;
    }
    .sidebar-toggle {
        display: inline-flex;
    }
}

/* Loading overlay default hidden */
.loading-overlay { display: none; align-items: center; justify-content: center; position: fixed; inset: 0; background: rgba(0,0,0,0.35); z-index: 3000; pointer-events: none; }
.loading-overlay.show { display: flex; pointer-events: all; }
.loading-spinner { display: grid; gap: 8px; color: #fff; text-align: center; }