/* RaceAI - Modern Chat Application Styles */

:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-surface: #1e1e1e;
    --color-surface-hover: #252525;
    --color-border: #2a2a2a;
    --color-border-light: #333333;
    
    --color-text: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;
    
    --color-primary: #8b5cf6;
    --color-primary-hover: #7c3aed;
    --color-primary-light: rgba(178, 145, 255, 0.112);
    
    --color-success: #22c55e;
    --color-warning: #eab308;
    --color-error: #ef4444;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Font */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 64px;
    --input-height: 80px;
}

/* Light Mode */
body.light-mode {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f0f2f5;
    --color-surface: #ffffff;
    --color-surface-hover: #f5f5f5;
    --color-border: #e5e5e5;
    --color-border-light: #eeeeee;
    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App Layout */
.app {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform var(--transition-normal);
    overflow-y: auto;
    max-height: 100vh;
}

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

.sidebar-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-section {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.02);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sidebar-section:not(:last-child) {
    margin-bottom: var(--spacing-md);
}

.sidebar-section h3 {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    margin-top: 0;
}

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

/* Profiles List */
.profiles-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.profile-item:hover {
    background: var(--color-surface-hover);
}

.profile-item.active {
    background: var(--color-primary-light);
}

.profile-item .avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.profile-item .profile-info {
    flex: 1;
}

.profile-item .profile-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.profile-item .profile-status {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* Conversation History List */
.conversation-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 300px;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
}

.conversation-list::-webkit-scrollbar {
    width: 6px;
}

.conversation-list::-webkit-scrollbar-track {
    background: transparent;
}

.conversation-list::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

.conversation-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

.conversation-item:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
}

.conversation-item.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.conversation-item .conv-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
}

.conversation-item .conv-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.conversation-item .conv-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.conversation-item .conv-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.conversation-item .conv-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.conversation-item .msg-count {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

.conversation-item .conv-preview {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.conversation-item .conv-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: auto;
}

.conversation-item-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.conversation-item-wrapper .conversation-item {
    flex: 1;
}

.conv-delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    opacity: 0;
}

.conv-delete-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
}

.conversation-item-wrapper:hover .conv-delete-btn {
    opacity: 1;
}

.conversation-list .empty-state {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Connection Status */
.connection-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-warning);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--color-success);
}

.status-dot.disconnected {
    background: var(--color-error);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Settings */
.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.toggle {
    width: 48px;
    height: 28px;
    background: var(--color-border);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    position: relative;
    transition: background var(--transition-fast);
    padding: 0;
    flex-shrink: 0;
}

.toggle:hover {
    background: var(--color-surface-hover);
}

.toggle.active {
    background: var(--color-primary);
}

.toggle-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle.active .toggle-slider {
    transform: translateX(20px);
}


/* Main Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    overflow: hidden;
}

/* Chat Header */
.chat-header {
    min-height: var(--header-height);
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    justify-content: space-between;
    background: var(--color-bg-secondary);
    flex-shrink: 0;
}

.header-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.header-profile .avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-border);
}

.header-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.header-info h1 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 2px;
    line-height: 1.1;
}

.header-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.header-meta span {
    flex-shrink: 0;
}

.status-indicator {
    font-size: var(--font-size-xs);
    color: var(--color-success);
}

.status-indicator.active::before {
    content: '● ';
}

.model-name {
    color: var(--color-text-muted);
}

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

/* Buttons */
.btn-icon {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-primary.full-width,
.btn-secondary.full-width,
.btn-panel.full-width {
    width: 100%;
}

.btn-secondary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-secondary.ghost {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    gap: 6px;
}

.btn-secondary.ghost:hover {
    background: rgba(139, 92, 246, 0.1);
}

.btn-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

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

.mobile-menu {
    display: none;
}

/* Messages Container */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.messages-container::-webkit-scrollbar {
    width: 6px;
}

.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

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

/* Welcome Message */
.welcome-message {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-secondary);
}

.welcome-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
}

.welcome-message h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.welcome-message p {
    font-size: var(--font-size-md);
}

/* Messages */
.message {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 92%;
    animation: messageIn 0.3s ease;
}

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

.message.user {
    margin-left: auto;
    flex-direction: row-reverse;
}

.message .avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.message-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-sender {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.message-bubble {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-md);
    line-height: 1.5;
    word-wrap: break-word;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4);
}

.message.ai .message-bubble {
    background: var(--color-surface);
    color: var(--color-text);
    border-bottom-left-radius: var(--radius-sm);
}

.message.user .message-bubble {
    background: linear-gradient(135deg, var(--color-primary), #a78bfa);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

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

/* Typing Indicator */
.typing-indicator {
    display: none;
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.typing-indicator.visible {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    animation: messageIn 0.3s ease;
}

.typing-indicator .avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.typing-bubble {
    display: flex;
    gap: 4px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-sm);
}

.typing-bubble span {
    width: 8px;
    height: 8px;
    background: var(--color-text-muted);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite;
}

.typing-bubble span:nth-child(2) { animation-delay: 0.2s; }
.typing-bubble span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { 
        transform: translateY(0);
        opacity: 0.4;
    }
    30% { 
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* Chat Input */
.chat-input {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.input-wrapper:focus-within {
    border-color: var(--color-primary);
}

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

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

.btn-send {
    width: 48px;
    height: 48px;
    background: linear-gradient(145deg, var(--color-primary), #a78bfa);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.btn-send::after {
    content: '';
    position: absolute;
    inset: 8px;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.35);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-send:hover:not(:disabled) {
    transform: scale(1.08);
    box-shadow: 0 18px 30px rgba(139, 92, 246, 0.55);
}

.btn-send:hover::after {
    opacity: 1;
}

.btn-send:disabled {
    opacity: 0.38;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-send svg {
    width: 20px;
    height: 20px;
}

.input-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: var(--spacing-xs);
}

.char-count {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.toast.success { border-left: 3px solid var(--color-success); }
.toast.error { border-left: 3px solid var(--color-error); }
.toast.warning { border-left: 3px solid var(--color-warning); }

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100%;
        z-index: 100;
        transform: translateX(-100%);
        overflow-y: auto;
        padding-right: var(--spacing-sm);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-menu {
        display: flex;
    }
    
    #close-sidebar {
        display: flex;
    }
    
    .chat-header {
        padding: 0 var(--spacing-md);
    }
    
    .messages-container {
        padding: var(--spacing-md);
    }
    
    .message {
        max-width: 90%;
    }
    
    .header-actions .btn-secondary span {
        display: none;
    }
}

@media (min-width: 769px) {
    #close-sidebar {
        display: none;
    }
}
/* Confirm Modal Dialog */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.confirm-dialog {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.confirm-dialog h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.confirm-dialog p {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.confirm-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.btn-confirm-cancel,
.btn-confirm-ok {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-confirm-cancel {
    background: var(--color-border);
    color: var(--color-text-secondary);
}

.btn-confirm-cancel:hover {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

.btn-confirm-ok {
    background: var(--color-error);
    color: white;
}

.btn-confirm-ok:hover {
    background: #dc2626;
    transform: translateY(-1px);
}