/* Quillfy AI - Advanced Cosmic Styling */
:root {
    /* Light Theme - Cosmic */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --accent-glow: rgba(6, 182, 212, 0.3);
    --background-color: #0f0f23;
    --surface-color: #1a1a2e;
    --card-color: #252547;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --border-glow: rgba(99, 102, 241, 0.2);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --cosmic-glow: 0 0 20px rgba(99, 102, 241, 0.5);
    
    /* Success/Error Colors */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
}

.dark-theme {
    /* Dark Theme - Deep Space */
    --background-color: #0a0a1a;
    --surface-color: #151528;
    --card-color: #1e1e3f;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #2d2d5a;
    --cosmic-glow: 0 0 30px rgba(139, 92, 246, 0.6);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Cosmic Animations */
@keyframes cosmicFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(180deg); }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: var(--cosmic-glow); }
    50% { box-shadow: 0 0 30px rgba(99, 102, 241, 0.8); }
}

@keyframes quantumShift {
    0% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.02); }
    100% { opacity: 0.8; transform: scale(1); }
}

@keyframes hologramAppear {
    0% { 
        opacity: 0; 
        transform: translateY(20px) scale(0.9);
        filter: blur(10px);
    }
    50% { 
        opacity: 1; 
        transform: translateY(-10px) scale(1.05);
        filter: blur(5px);
    }
    100% { 
        opacity: 1; 
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

@keyframes hologramGlow {
    0%, 100% { 
        opacity: 0.6;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.1);
    }
}

@keyframes hologramFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-5px) rotate(1deg); }
    50% { transform: translateY(-10px) rotate(0deg); }
    75% { transform: translateY(-5px) rotate(-1deg); }
}

/* App Layout */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
    border-bottom: 1px solid var(--border-glow);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: quantumShift 10s ease-in-out infinite;
}

.app-version {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border-glow);
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.current-agent-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--card-color);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    animation: cosmicFloat 6s ease-in-out infinite;
}

.agent-avatar-small img {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    box-shadow: var(--cosmic-glow);
}

.agent-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.agent-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    background: var(--success-color);
    color: white;
    font-weight: 500;
}

.agent-status.typing {
    background: var(--warning-color);
    animation: glowPulse 2s ease-in-out infinite;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Main Layout */
.main-layout {
    display: flex;
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 350px;
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: calc(100vh - 80px);
    position: sticky;
    top: 80px;
    border-right: 1px solid var(--border-glow);
}

.sidebar.collapsed {
    transform: translateX(-100%);
    width: 0;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--surface-color);
}

.sidebar-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-actions {
    display: flex;
    gap: 0.5rem;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.sidebar-section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.section-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.agent-count {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Agents List */
.agents-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.agent-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    background: var(--card-color);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.agent-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.agent-item:hover::before {
    left: 100%;
}

.agent-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.agent-item.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color)20%, var(--card-color) 20%);
    animation: glowPulse 3s ease-in-out infinite;
}

.agent-item.default {
    border-left: 4px solid var(--accent-color);
}

.agent-avatar {
    position: relative;
    flex-shrink: 0;
}

.agent-avatar img {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.agent-item:hover .agent-avatar img {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.agent-badge {
    position: absolute;
    bottom: -2px;
    right: -2px;
    background: var(--accent-color);
    color: white;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    border: 2px solid var(--card-color);
}

.agent-info {
    flex: 1;
    min-width: 0;
}

.agent-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.agent-expertise {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.agent-actions {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.agent-item:hover .agent-actions {
    opacity: 1;
}

/* AI Settings */
.ai-settings {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.setting-group {
    background: var(--card-color);
    padding: 1.25rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.setting-group:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.setting-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 0.75rem;
}

.setting-label input[type="checkbox"] {
    display: none;
}

.setting-toggle {
    width: 2.5rem;
    height: 1.25rem;
    background: var(--border-color);
    border-radius: 1rem;
    position: relative;
    transition: all 0.3s ease;
}

.setting-toggle::before {
    content: '';
    position: absolute;
    top: 0.125rem;
    left: 0.125rem;
    width: 1rem;
    height: 1rem;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.setting-label input[type="checkbox"]:checked + .setting-toggle {
    background: var(--primary-color);
}

.setting-label input[type="checkbox"]:checked + .setting-toggle::before {
    transform: translateX(1.25rem);
}

.setting-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
    flex: 1;
}

.setting-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.setting-intensity {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.setting-intensity input[type="range"] {
    flex: 1;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
}

.setting-intensity input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--cosmic-glow);
}

.intensity-value {
    font-size: 0.75rem;
    color: var(--text-secondary);
    min-width: 3rem;
    text-align: right;
}

/* Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chat-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 80px);
}

.section-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(26, 26, 46, 0.8);
    backdrop-filter: blur(10px);
}

.chat-header-info h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chat-status {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.chat-status.online {
    color: var(--success-color);
}

.chat-status.typing {
    color: var(--warning-color);
    animation: glowPulse 2s ease-in-out infinite;
}

/* Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: var(--background-color);
}

/* Messages */
.message {
    display: flex;
    gap: 1rem;
    max-width: 85%;
    animation: messageAppear 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes messageAppear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.assistant {
    align-self: flex-start;
}

.message-avatar img {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.message:hover .message-avatar img {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.message-content {
    flex: 1;
    background: var(--card-color);
    padding: 1.25rem 1.5rem;
    border-radius: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: relative;
    transition: all 0.3s ease;
}

.message-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-glow), transparent);
}

.message.user .message-content {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
}

.message.user .message-content::before {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.message:hover .message-content {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.message-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.expert-badge {
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.2);
}

.message-text {
    line-height: 1.7;
    white-space: pre-wrap;
    font-size: 0.95rem;
}

.message-text img {
    max-width: 100%;
    border-radius: 0.75rem;
    margin: 0.75rem 0;
    box-shadow: var(--shadow);
}

.message-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.message.user .message-footer {
    border-top-color: rgba(255, 255, 255, 0.2);
}

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

.message.user .message-time {
    color: rgba(255, 255, 255, 0.7);
}

.message-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.message-action {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    font-size: 0.8rem;
}

.message-action:hover {
    background: var(--surface-color);
    color: var(--text-primary);
}

.message.user .message-action {
    color: rgba(255, 255, 255, 0.7);
}

.message.user .message-action:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Welcome Message */
.welcome-message {
    max-width: 90%;
    background: linear-gradient(135deg, var(--surface-color), var(--card-color));
    border: 2px solid var(--primary-color);
    animation: glowPulse 4s ease-in-out infinite;
}

/* Typing Indicator */
.typing-indicator .message-content {
    background: var(--surface-color);
    border: 1px solid var(--border-glow);
}

.typing-dots {
    display: flex;
    gap: 0.375rem;
    margin-bottom: 0.75rem;
}

.typing-dots span {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: var(--primary-color);
    animation: typing 1.4s infinite ease-in-out;
    box-shadow: var(--cosmic-glow);
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1.2); opacity: 1; }
}

.typing-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Quick Actions */
.quick-actions {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--surface-color);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quick-actions-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.quick-action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.quick-action {
    background: var(--card-color);
    border: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-align: left;
}

.quick-action.cosmic {
    background: linear-gradient(135deg, var(--card-color), var(--surface-color));
    border: 1px solid var(--border-glow);
    position: relative;
    overflow: hidden;
}

.quick-action.cosmic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.quick-action.cosmic:hover::before {
    left: 100%;
}

.quick-action:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.quick-action i {
    font-size: 1.125rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.quick-action span {
    font-weight: 500;
}

/* Chat Input */
.chat-input-container {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--surface-color);
    position: relative;
}

.file-upload-area {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(99, 102, 241, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--primary-color);
    border-radius: 1rem;
    z-index: 10;
    animation: glowPulse 2s ease-in-out infinite;
}

.upload-prompt {
    text-align: center;
    color: white;
}

.upload-prompt i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.upload-prompt p {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.upload-prompt small {
    opacity: 0.8;
}

.chat-input {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    background: var(--card-color);
    border: 2px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 1.25rem;
    transition: all 0.3s ease;
    position: relative;
}

.chat-input::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 1.5rem;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chat-input.focused {
    border-color: transparent;
}

.chat-input.focused::before {
    opacity: 1;
}

.chat-input-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chat-input textarea {
    flex: 1;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 1rem;
    resize: none;
    max-height: 120px;
    outline: none;
    font-family: inherit;
    line-height: 1.5;
}

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

.send-button {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.send-button:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--cosmic-glow);
}

.send-button:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Uploaded Files */
.uploaded-files {
    margin-top: 1rem;
}

.uploaded-files-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.uploaded-files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.uploaded-file {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--card-color);
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.uploaded-file:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.file-name {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

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

.remove-file {
    color: var(--error-color);
    padding: 0.25rem;
}

/* Message Attachments */
.message-attachments {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.attachment {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--surface-color);
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--cosmic-glow);
}

.btn-secondary {
    background: var(--surface-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: var(--card-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-danger {
    background: var(--error-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.75rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.btn-icon:hover {
    background: var(--surface-color);
    color: var(--text-primary);
    transform: scale(1.1);
}

.sidebar-toggle {
    display: flex !important;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal {
    background: var(--surface-color);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalAppear 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-glow);
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--card-color);
    border-radius: 1.5rem 1.5rem 0 0;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
    align-items: center;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
}

/* API Status Section */
.api-status {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--card-color);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.api-status h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-indicator.connected {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success-color);
}

.status-indicator.connecting {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning-color);
    animation: glowPulse 2s ease-in-out infinite;
}

.status-indicator.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error-color);
}

/* Input Groups */
.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: var(--card-color);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-with-prefix {
    display: flex;
    align-items: center;
}

.prefix {
    background: var(--surface-color);
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 0.75rem 0 0 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-with-prefix input {
    border-radius: 0 0.75rem 0.75rem 0;
}

.help-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    line-height: 1.4;
}

/* Profile Avatar */
.profile-avatar-section {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.avatar-upload {
    text-align: center;
}

.avatar-preview {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    margin: 0 auto 1rem;
    border: 3px solid var(--primary-color);
    position: relative;
    overflow: hidden;
    box-shadow: var(--cosmic-glow);
}

.avatar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.avatar-preview:hover .avatar-overlay {
    opacity: 1;
}

.avatar-overlay i {
    font-size: 1.5rem;
}

/* Avatar Generation */
.avatar-generation {
    margin-bottom: 1.5rem;
}

.avatar-generation label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.avatar-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.avatar-option {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 0.75rem;
    border: 2px solid var(--border-color);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.avatar-option:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.avatar-option.selected {
    border-color: var(--primary-color);
    box-shadow: var(--cosmic-glow);
}

.avatar-option img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Setup Guide */
.setup-guide {
    background: var(--card-color);
    padding: 1.5rem;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-glow);
}

.setup-guide h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
    box-shadow: var(--cosmic-glow);
}

.step-content strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.4;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-spinner {
    text-align: center;
    color: white;
    background: var(--surface-color);
    padding: 3rem;
    border-radius: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-glow);
    max-width: 400px;
    width: 90%;
}

.spinner-animation {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: cosmicFloat 3s ease-in-out infinite;
    color: var(--primary-color);
}

.loading-spinner h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    background: linear-gradient(135deg, white, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loading-spinner p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.loading-progress {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 3px;
    transition: width 0.3s ease;
    box-shadow: var(--cosmic-glow);
}

/* Holographic Notification */
.holographic-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3000;
    animation: hologramAppear 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    cursor: pointer;
}

.hologram-content {
    position: relative;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.1), 
        rgba(139, 92, 246, 0.1), 
        rgba(6, 182, 212, 0.1));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 1.5rem;
    padding: 2rem 3rem;
    text-align: center;
    box-shadow: 
        0 0 50px rgba(99, 102, 241, 0.5),
        inset 0 0 50px rgba(99, 102, 241, 0.1);
    animation: hologramFloat 4s ease-in-out infinite;
}

.hologram-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        transparent, 
        rgba(99, 102, 241, 0.3), 
        rgba(139, 92, 246, 0.3), 
        rgba(6, 182, 212, 0.3), 
        transparent);
    border-radius: 1.5rem;
    z-index: -1;
    animation: hologramGlow 3s ease-in-out infinite;
}

.hologram-text {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(99, 102, 241, 0.8);
}

.hologram-text i {
    font-size: 2rem;
    color: var(--accent-color);
    filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.8));
}

.hologram-subtext {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    text-shadow: 0 0 5px rgba(99, 102, 241, 0.6);
}

/* Connection Status */
.connection-status {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    background: var(--surface-color);
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    z-index: 100;
}

.connection-status.connected {
    border-color: var(--success-color);
}

.connection-status.connected i {
    color: var(--success-color);
}

.connection-status.connecting {
    border-color: var(--warning-color);
    animation: glowPulse 2s ease-in-out infinite;
}

.connection-status.connecting i {
    color: var(--warning-color);
}

/* Notifications */
.notification {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background: var(--card-color);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    max-width: 350px;
    border-left: 4px solid var(--primary-color);
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

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

.notification.error {
    border-left-color: var(--error-color);
}

.notification.warning {
    border-left-color: var(--warning-color);
}

.notification.info {
    border-left-color: var(--info-color);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification-content i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.notification.success i { color: var(--success-color); }
.notification.error i { color: var(--error-color); }
.notification.warning i { color: var(--warning-color); }
.notification.info i { color: var(--info-color); }

/* MathJax Styling */
.math-container {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--surface-color);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

.mjx-chtml {
    outline: none;
}

/* Code Block Styling */
.code-block {
    background: #1a1a2e;
    color: #e2e8f0;
    padding: 1.5rem;
    border-radius: 0.75rem;
    margin: 1rem 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    border: 1px solid var(--border-color);
    position: relative;
}

.code-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.code-block pre {
    margin: 0;
    white-space: pre-wrap;
}

.code-block code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* Selection Styling */
::selection {
    background: rgba(99, 102, 241, 0.3);
}

::-moz-selection {
    background: rgba(99, 102, 241, 0.3);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .sidebar {
        width: 320px;
    }
    
    .quick-action-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        top: 80px;
        left: 0;
        height: calc(100vh - 80px);
        z-index: 90;
        box-shadow: var(--shadow-lg);
    }
    
    .sidebar.collapsed {
        transform: translateX(-100%);
        width: 0;
    }
    
    .sidebar-toggle {
        display: flex !important;
    }
    
    .header-center {
        display: none;
    }
    
    .message {
        max-width: 95%;
    }
    
    .quick-action-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
    }
    
    .header-brand h1 {
        font-size: 1.25rem;
    }
    
    .header-actions {
        gap: 0.5rem;
    }
    
    .btn-secondary span {
        display: none;
    }
    
    .btn-secondary i {
        margin: 0;
    }
    
    .chat-messages {
        padding: 1rem;
    }
    
    .chat-input-container {
        padding: 1rem;
    }
    
    .modal {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }
    
    .avatar-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-body,
    .modal-footer {
        padding: 1.5rem;
    }
    
    .hologram-content {
        padding: 1.5rem 2rem;
        margin: 0 1rem;
    }
    
    .hologram-text {
        font-size: 1.25rem;
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .header-brand h1 {
        font-size: 1.1rem;
    }
    
    .app-version {
        display: none;
    }
    
    .message-content {
        padding: 1rem 1.25rem;
    }
    
    .modal-body,
    .modal-footer {
        padding: 1rem;
    }
    
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-content {
        padding: 1rem;
    }
    
    .avatar-options {
        grid-template-columns: 1fr;
    }
    
    .modal-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .modal-actions .btn-secondary,
    .modal-actions .btn-primary {
        width: 100%;
        justify-content: center;
    }
    
    .hologram-content {
        padding: 1rem 1.5rem;
    }
    
    .hologram-text {
        font-size: 1.1rem;
    }
}

/* Print Styles */
@media print {
    .app-header,
    .chat-input-container,
    .sidebar,
    .section-actions {
        display: none !important;
    }
    
    .main-layout {
        display: block;
    }
    
    .chat-section {
        height: auto;
    }
    
    .chat-messages {
        padding: 0;
    }
    
    .message {
        max-width: 100%;
        break-inside: avoid;
    }
    
    body {
        background: white;
        color: black;
    }
}