/* ===== CSS Variables & Theme ===== */
:root {
    /* Colors - Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f8;
    --bg-tertiary: #ececf1;
    --text-primary: #1a1a1a;
    --text-secondary: #6b6b6b;
    --text-muted: #9a9a9a;
    --border-color: #e5e5e5;
    --accent-color: #7c3aed;
    --accent-hover: #6d28d9;
    --accent-light: #f3e8ff;
    --user-message-bg: #7c3aed;
    --user-message-text: #ffffff;
    --assistant-message-bg: #f7f7f8;
    --assistant-message-text: #1a1a1a;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Spacing */
    --sidebar-width: 280px;
    --header-height: 60px;
    --input-height: 60px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #262626;
    --bg-tertiary: #333333;
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --border-color: #404040;
    --accent-light: #3b2667;
    --user-message-bg: #7c3aed;
    --user-message-text: #ffffff;
    --assistant-message-bg: #262626;
    --assistant-message-text: #ffffff;
}

/* ===== Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
}

/* ===== App Container ===== */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

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

.sidebar-header {
    padding: 16px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 1rem;
    font-weight: 700;
}

.logo-image {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.logo-text {
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--accent-color);
}

.logo-icon {
    font-size: 1.5rem;
}

.new-chat-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.new-chat-btn:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Search Box */
.search-box {
    padding: 8px 16px;
    border-bottom: 1px solid var(--border-color);
}

.search-box input {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

/* Conversation List */
.conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.conversation-item {
    padding: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    margin-bottom: 4px;
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.conversation-item:hover {
    background-color: var(--bg-tertiary);
}

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

.conversation-title {
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

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

.conversation-delete {
    opacity: 0;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

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

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.model-selector {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.model-selector label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.model-selector select {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.model-selector select:hover {
    border-color: var(--accent-color);
}

.model-selector select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

/* ===== Main Chat Area ===== */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Mobile Header */
.mobile-header {
    display: none;
    height: var(--header-height);
    padding: 0 16px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    gap: 12px;
    background-color: var(--bg-primary);
}

.menu-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-toggle:hover {
    background-color: var(--bg-secondary);
}

.chat-title {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.export-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.regenerate-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.regenerate-btn:hover:not(:disabled) {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.regenerate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.regenerate-btn.loading svg {
    animation: spin 1s linear infinite;
}

/* ===== Chat Messages ===== */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Welcome Screen */
.welcome-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-content {
    text-align: center;
    max-width: 600px;
    padding: 24px;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

/* 3D Model Container */
.welcome-3d-model {
    width: 250px;
    height: 250px;
    margin: 0 auto 16px auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-3d-model canvas {
    border-radius: var(--radius-lg);
}

.welcome-icon-fallback {
    font-size: 5rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.welcome-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #7c3aed, #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.feature-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: left;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.feature-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 8px;
}

.feature-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Message Bubbles */
.message {
    display: flex;
    gap: 12px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.3s ease;
}

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

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

.message.assistant .message-avatar {
    background-color: var(--bg-tertiary);
}

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

.message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.message-author {
    font-size: 0.875rem;
    font-weight: 600;
}

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

.message-text {
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message.user .message-text {
    background-color: var(--user-message-bg);
    color: var(--user-message-text);
    border-bottom-left-radius: var(--radius-sm);
}

.message.assistant .message-text {
    background-color: var(--assistant-message-bg);
    color: var(--assistant-message-text);
    border-bottom-left-radius: var(--radius-sm);
}

.message-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.message-action-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

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

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background-color: var(--text-muted);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

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

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

@keyframes bounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* ===== Chat Input ===== */
.chat-input-container {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.chat-form {
    max-width: 800px;
    margin: 0 auto;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 12px 16px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-wrapper:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.input-wrapper textarea {
    flex: 1;
    border: none;
    background: none;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    color: var(--text-primary);
    resize: none;
    max-height: 150px;
    line-height: 1.5;
}

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

.input-wrapper textarea:focus {
    outline: none;
}

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

.send-btn:hover:not(:disabled) {
    background-color: var(--accent-hover);
    transform: scale(1.05);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 8px;
}

/* ===== File Upload Styles ===== */

/* Attachment Button */
.attach-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.attach-btn:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.attach-btn.has-files {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

/* File Preview Container */
.file-preview-container {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
    margin-bottom: 8px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.file-preview-container.has-files {
    display: flex;
}

.file-preview-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    max-width: 120px;
}

.file-preview-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.file-preview-item .file-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 2rem;
}

.file-preview-item .file-name {
    font-size: 0.7rem;
    color: var(--text-secondary);
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

.file-preview-item .remove-file {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background-color: var(--error-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.file-preview-item .remove-file:hover {
    transform: scale(1.1);
}

/* Drag & Drop Overlay - Hidden */
.drag-drop-overlay {
    display: none !important;
}

/* Message with Image Attachment */
.message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
    margin-bottom: 8px;
}

.message-attachment-img {
    max-width: 300px;
    max-height: 200px;
    border-radius: var(--radius-md);
    object-fit: contain;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.message-attachment-img:hover {
    transform: scale(1.02);
}

.message-attachment-file {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.message-attachment-file svg {
    flex-shrink: 0;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
}

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

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

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

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

/* ===== Code Blocks ===== */
.message-text pre {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 12px;
    overflow-x: auto;
    margin: 8px 0;
}

.message-text code {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.875rem;
}

.message-text p code {
    background-color: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

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

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 100;
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .mobile-header {
        display: flex;
    }
    
    .chat-messages {
        padding: 16px;
    }
    
    .chat-input-container {
        padding: 12px 16px;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    .welcome-content {
        padding: 16px;
    }
    
    .welcome-content h2 {
        font-size: 1.5rem;
    }
}

/* ===== Overlay for mobile sidebar ===== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

/* ===== Markdown Content Styling ===== */
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4 {
    margin-top: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.message-text h1 { font-size: 1.5rem; }
.message-text h2 { font-size: 1.25rem; }
.message-text h3 { font-size: 1.1rem; }

.message-text ul,
.message-text ol {
    margin: 8px 0;
    padding-left: 24px;
}

.message-text li {
    margin: 4px 0;
}

.message-text blockquote {
    border-left: 3px solid var(--accent-color);
    margin: 8px 0;
    padding-left: 12px;
    color: var(--text-secondary);
}

.message-text a {
    color: var(--accent-color);
    text-decoration: none;
}

.message-text a:hover {
    text-decoration: underline;
}

.message-text hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 16px 0;
}

/* ===== Login Screen ===== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    overflow: auto;
}

.login-screen.active {
    display: flex !important;
}

.login-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
    max-width: 420px;
    width: 90%;
    margin: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    text-align: center;
}

.login-header {
    margin-bottom: 32px;
}

.login-logo {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    margin-bottom: 20px;
    object-fit: cover;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-content {
    margin-bottom: 32px;
}

.login-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.google-login-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 14px 24px;
    background: #ffffff;
    border: 2px solid #e5e5e5;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    color: #1a1a1a;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.google-login-btn:hover {
    background: #f8f8f8;
    border-color: #d0d0d0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.google-login-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.google-login-btn svg {
    flex-shrink: 0;
}

.login-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

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

/* ===== User Info in Sidebar ===== */
.user-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.user-email {
    font-size: 0.85rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 180px;
}

.logout-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logout-btn:hover {
    color: var(--error-color);
    background: var(--bg-tertiary);
}