:root {
    --primary-color: #4a6cf7;
    --primary-hover: #3a5ce6;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    
    --bg-light: #ffffff;
    --bg-dark: #1e1e1e;
    --bg-sidebar-light: #f8f9fa;
    --bg-sidebar-dark: #252526;
    --bg-editor-light: #ffffff;
    --bg-editor-dark: #1e1e1e;
    
    --text-light: #212529;
    --text-dark: #e9e9e9;
    --border-light: #dee2e6;
    --border-dark: #444444;
    
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 2px 10px rgba(0, 0, 0, 0.3);
    
    --font-code: 'Fira Code', monospace;
    --font-main: 'Inter', sans-serif;
    
    --transition-speed: 0.3s;
    --animation-speed: 0.5s;
}

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

body {
    font-family: var(--font-main);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-light);
    background-color: var(--bg-light);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

body.dark-theme {
    color: var(--text-dark);
    background-color: var(--bg-dark);
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.dark-theme .app-header {
    background-color: var(--bg-dark);
    border-color: var(--border-dark);
    box-shadow: var(--shadow-dark);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    width: 32px;
    height: 32px;
    margin-right: 10px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: transform var(--animation-speed);
}

.logo img:hover {
    transform: rotate(10deg) scale(1.1);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), #6e8dfb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-controls {
    display: flex;
    gap: 10px;
}

/* Main container */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--bg-sidebar-light);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.dark-theme .sidebar {
    background-color: var(--bg-sidebar-dark);
    border-color: var(--border-dark);
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border-light);
    transition: border-color var(--transition-speed);
}

.dark-theme .sidebar-header {
    border-color: var(--border-dark);
}

.sidebar-header:first-of-type h3 {
    width: 100%;
    text-align: left;
}

.sidebar-header h3 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--secondary-color);
}

.project-list, .file-list {
    padding: 10px 0;
}

.project, .file {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 15px;
    cursor: pointer;
    border-radius: 4px;
    margin: 2px 8px;
    transition: background-color 0.2s;
}

.project:hover, .file:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.dark-theme .project:hover, .dark-theme .file:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.project.active, .file.active {
    background-color: rgba(74, 108, 247, 0.1);
    font-weight: 500;
    color: var(--primary-color);
}

.dark-theme .project.active, .dark-theme .file.active {
    background-color: rgba(74, 108, 247, 0.2);
}

.project-actions, .file-actions {
    display: flex;
    gap: 5px;
    opacity: 0;
    transition: opacity 0.2s;
}

.project:hover .project-actions, .file:hover .file-actions {
    opacity: 1;
}

/* Content container */
.content-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Editor container */
.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--bg-editor-light);
    transition: background-color var(--transition-speed);
}

.dark-theme .editor-container {
    background-color: var(--bg-editor-dark);
}

.editor-tabs {
    display: flex;
    overflow-x: auto;
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.dark-theme .editor-tabs {
    background-color: var(--bg-dark);
    border-color: var(--border-dark);
}

.tab {
    display: flex;
    align-items: center;
    padding: 8px 15px;
    background-color: rgba(0, 0, 0, 0.02);
    border-right: 1px solid var(--border-light);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s, border-color var(--transition-speed);
}

.dark-theme .tab {
    background-color: rgba(255, 255, 255, 0.02);
    border-color: var(--border-dark);
}

.tab.active {
    background-color: var(--bg-editor-light);
    border-bottom: 2px solid var(--primary-color);
}

.dark-theme .tab.active {
    background-color: var(--bg-editor-dark);
}

.tab span {
    margin-right: 8px;
}

.close-tab {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.2s;
}

.close-tab:hover {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.new-tab {
    padding: 8px 15px;
    background: none;
    border: none;
    border-right: 1px solid var(--border-light);
    cursor: pointer;
    color: var(--secondary-color);
    transition: color 0.2s, border-color var(--transition-speed);
}

.dark-theme .new-tab {
    border-color: var(--border-dark);
}

.new-tab:hover {
    color: var(--primary-color);
}

.code-editor {
    flex: 1;
    overflow: hidden;
}

/* AI Interaction */
.ai-interaction {
    display: flex;
    flex-direction: column;
    height: 300px;
    border-top: 1px solid var(--border-light);
    background-color: var(--bg-light);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
    position: relative;
}

.dark-theme .ai-interaction {
    background-color: var(--bg-dark);
    border-color: var(--border-dark);
}

.chat-container {
    flex: 1;
    padding: 15px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
}

.message {
    display: flex;
    margin-bottom: 15px;
    animation: fadeIn var(--animation-speed);
}

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

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 10px;
    flex-shrink: 0;
}

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

.message-content {
    background-color: rgba(0, 0, 0, 0.03);
    padding: 12px 15px;
    border-radius: 12px;
    border-top-left-radius: 4px;
    max-width: 85%;
}

.dark-theme .message-content {
    background-color: rgba(255, 255, 255, 0.05);
}

.message.user .message-content {
    background-color: rgba(74, 108, 247, 0.1);
    border-top-left-radius: 12px;
    border-top-right-radius: 4px;
}

.dark-theme .message.user .message-content {
    background-color: rgba(74, 108, 247, 0.2);
}

.message.ai .message-content p {
    overflow: hidden;
    white-space: nowrap;
    animation: typing 1s steps(40, end);
    animation-fill-mode: forwards;
}

.chat-input-container {
    margin-top: 10px;
    position: relative;
}

#chat-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    resize: none;
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-light);
    transition: border-color 0.2s, background-color var(--transition-speed), color var(--transition-speed);
    outline: none;
}

.dark-theme #chat-input {
    background-color: var(--bg-dark);
    color: var(--text-dark);
    border-color: var(--border-dark);
}

#chat-input:focus {
    border-color: var(--primary-color);
}

.chat-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 10px;
}

.actions-panel {
    display: flex;
    padding: 15px;
    gap: 10px;
    border-top: 1px solid var(--border-light);
    transition: border-color var(--transition-speed);
}

.dark-theme .actions-panel {
    border-color: var(--border-dark);
}

/* Buttons */
.btn {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    background-color: var(--light-color);
    color: var(--text-light);
    font-family: var(--font-main);
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s;
}

.dark-theme .btn {
    background-color: var(--dark-color);
    color: var(--text-dark);
}

.btn:hover {
    background-color: #e9ecef;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.dark-theme .btn:hover {
    background-color: #343a40;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(1px);
}

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

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

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

.btn.secondary:hover {
    background-color: #5a6268;
}

.btn-small {
    padding: 5px 10px;
    font-size: 0.9rem;
}

.icon-btn {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: none;
    background-color: transparent;
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
    font-size: 0.9rem;
}

.icon-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color);
}

.dark-theme .icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.action-btn {
    padding: 8px 15px;
    background-color: rgba(74, 108, 247, 0.1);
    border: none;
    border-radius: 4px;
    color: var(--primary-color);
    font-family: var(--font-main);
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.dark-theme .action-btn {
    background-color: rgba(74, 108, 247, 0.2);
}

.action-btn:hover {
    background-color: rgba(74, 108, 247, 0.2);
}

.dark-theme .action-btn:hover {
    background-color: rgba(74, 108, 247, 0.3);
}

.action-btn:active {
    transform: translateY(1px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed);
}

.modal.show {
    display: flex;
    animation: modalFadeIn var(--animation-speed) forwards;
}

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

.modal-content {
    position: relative;
    background-color: var(--bg-light);
    border-radius: 8px;
    width: 500px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: background-color var(--transition-speed);
    transform: scale(0.95);
    animation: modalScale var(--animation-speed) forwards;
}

@keyframes modalScale {
    from { transform: scale(0.95); }
    to { transform: scale(1); }
}

.dark-theme .modal-content {
    background-color: var(--bg-dark);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color var(--transition-speed);
}

.dark-theme .modal-header {
    border-color: var(--border-dark);
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    transition: border-color var(--transition-speed);
}

.dark-theme .modal-footer {
    border-color: var(--border-dark);
}

/* Settings specific styles */
.settings-section {
    margin-bottom: 20px;
}

.settings-section h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.setting-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.setting-item label {
    flex: 1;
}

.setting-item input[type="range"] {
    width: 100px;
    margin-right: 10px;
}

.setting-item select {
    padding: 5px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-light);
    background-color: var(--bg-light);
    color: var(--text-light);
    transition: border-color 0.2s, background-color var(--transition-speed), color var(--transition-speed);
}

.dark-theme .setting-item select {
    background-color: var(--bg-dark);
    color: var(--text-dark);
    border-color: var(--border-dark);
}

.setting-item.checkbox {
    display: flex;
    align-items: center;
}

.setting-item.checkbox input {
    margin-right: 10px;
}

/* Welcome modal */
.modal-content.welcome {
    width: 600px;
}

.welcome-animation {
    text-align: center;
    margin: 20px 0;
}

.welcome-animation img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s ease-in-out;
}

.welcome-animation img:hover {
    transform: scale(1.02);
}

.feature-list {
    margin-top: 20px;
}

.feature {
    display: flex;
    margin-bottom: 15px;
    animation: fadeInUp 0.5s forwards;
    opacity: 0;
}

.feature:nth-child(1) { animation-delay: 0.1s; }
.feature:nth-child(2) { animation-delay: 0.2s; }
.feature:nth-child(3) { animation-delay: 0.3s; }

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

.feature-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    background-color: rgba(74, 108, 247, 0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dark-theme .feature-icon {
    background-color: rgba(74, 108, 247, 0.2);
}

.feature-text h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.feature-text p {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

/* Context menu */
.contextmenu {
    position: absolute;
    display: none;
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    box-shadow: var(--shadow-light);
    min-width: 150px;
    z-index: 1000;
    transition: background-color var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.dark-theme .contextmenu {
    background-color: var(--bg-dark);
    border-color: var(--border-dark);
    box-shadow: var(--shadow-dark);
}

.contextmenu ul {
    list-style: none;
}

.contextmenu li {
    padding: 8px 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.contextmenu li:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.dark-theme .contextmenu li:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.contextmenu li.divider {
    border-top: 1px solid var(--border-light);
    margin: 5px 0;
    padding: 0;
    cursor: default;
    transition: border-color var(--transition-speed);
}

.dark-theme .contextmenu li.divider {
    border-color: var(--border-dark);
}

.contextmenu li.danger {
    color: var(--danger-color);
}

/* Notifications */
#notification-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.notification {
    background-color: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 15px 20px;
    margin-bottom: 10px;
    animation: slideIn 0.3s, fadeOut 0.3s 2.7s forwards;
    max-width: 300px;
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

.dark-theme .notification {
    background-color: var(--bg-dark);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

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

.notification.success { border-left-color: var(--success-color); }
.notification.error { border-left-color: var(--danger-color); }
.notification.warning { border-left-color: var(--warning-color); }
.notification.info { border-left-color: var(--info-color); }

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

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

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

/* Responsive styles */
@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--border-light);
    }
    
    .dark-theme .sidebar {
        border-color: var(--border-dark);
    }
    
    .feature {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .feature-icon {
        margin-right: 0;
        margin-bottom: 10px;
    }
}

/* Code token highlighting */
.token-keyword { color: #569cd6; }
.token-string { color: #ce9178; }
.token-comment { color: #6a9955; }
.token-function { color: #dcdcaa; }
.token-variable { color: #9cdcfe; }
.token-number { color: #b5cea8; }
.token-property { color: #9cdcfe; }
.token-operator { color: #d4d4d4; }
.token-punctuation { color: #d4d4d4; }

/* Loading animations */
.loading-dots {
    display: inline-flex;
    align-items: center;
    height: 1em;
}

.loading-dots span {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
    margin: 0 2px;
    animation: loadingDots 1.4s infinite ease-in-out both;
}

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

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.dark-theme ::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
}

::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.3);
}

.dark-theme ::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Tooltip styles */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 100;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Input animations */
.input-animation {
    position: relative;
}

.input-animation input {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background-color: var(--bg-light);
    color: var(--text-light);
}

.dark-theme .input-animation input {
    background-color: var(--bg-dark);
    color: var(--text-dark);
    border-color: var(--border-dark);
}

.input-animation input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.2);
    outline: none;
}

.input-animation label {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    background-color: var(--bg-light);
    padding: 0 5px;
    color: var(--secondary-color);
    transition: top 0.2s, transform 0.2s, font-size 0.2s, color 0.2s, background-color var(--transition-speed);
    pointer-events: none;
}

.dark-theme .input-animation label {
    background-color: var(--bg-dark);
}

.input-animation input:focus + label,
.input-animation input:not(:placeholder-shown) + label {
    top: 0;
    transform: translateY(-50%) scale(0.8);
    color: var(--primary-color);
}

/* Code block styling */
.code-block {
    font-family: var(--font-code);
    background-color: rgba(0, 0, 0, 0.03);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 10px 0;
    position: relative;
    transition: background-color var(--transition-speed);
}

.dark-theme .code-block {
    background-color: rgba(255, 255, 255, 0.03);
}

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

.code-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 15px;
    background-color: rgba(0, 0, 0, 0.05);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    font-size: 0.9rem;
    transition: background-color var(--transition-speed);
}

.dark-theme .code-block-header {
    background-color: rgba(255, 255, 255, 0.05);
}

.code-block-actions {
    display: flex;
    gap: 10px;
}

.code-block-content {
    padding: 15px;
}

/* Additional UI animations */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: "";
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 100px;
    height: 100px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
    transition: transform 0.5s, opacity 0.5s;
}

.ripple:active::after {
    transform: translate(-50%, -50%) scale(2.5);
    opacity: 0;
}

.rotate-icon {
    transition: transform 0.3s ease;
}

.rotate-icon:hover {
    transform: rotate(90deg);
}

.pulse-animation:hover {
    animation: pulse 1s infinite;
}

.slide-animation {
    animation: slideInFromBottom 0.5s forwards;
    opacity: 0;
    transform: translateY(20px);
}

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

/* Onboarding tour highlight */
.tour-highlight {
    position: relative;
    z-index: 1001;
}

.tour-highlight::before {
    content: "";
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    animation: pulse 1.5s infinite;
    z-index: -1;
    pointer-events: none;
}

/* Resize handle */
.resize-handle {
    width: 100%;
    height: 5px;
    background-color: var(--border-light);
    cursor: ns-resize;
    position: absolute;
    top: 0;
    left: 0;
    transform: translateY(-50%);
    z-index: 10;
    transition: background-color var(--transition-speed);
}

.dark-theme .resize-handle {
    background-color: var(--border-dark);
}

.resize-handle:hover, .resize-handle.active {
    background-color: var(--primary-color);
}