/* Variables */
:root {
    /* Dark Theme */
    --dark-bg: #1a1a1a;
    --dark-surface: #2d2d2d;
    --dark-border: #404040;
    --dark-text: #ffffff;
    --dark-text-secondary: #b3b3b3;
    --dark-primary: #646cff;
    --dark-primary-hover: #747bff;

    /* Blue Theme */
    --blue-bg: #0d1117;
    --blue-surface: #161b22;
    --blue-border: #30363d;
    --blue-text: #c9d1d9;
    --blue-text-secondary: #8b949e;
    --blue-primary: #58a6ff;
    --blue-primary-hover: #79b8ff;

    /* Green Theme */
    --green-bg: #0d1b0d;
    --green-surface: #162316;
    --green-border: #2a3d2a;
    --green-text: #c9d9c9;
    --green-text-secondary: #8b988b;
    --green-primary: #4caf50;
    --green-primary-hover: #66bb6a;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', sans-serif;
}

body {
    height: 100vh;
    background-color: var(--dark-bg);
    color: var(--dark-text);
    overflow: hidden;
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
}

/* Theme Classes */
.theme-dark {
    --bg-primary: var(--dark-bg);
    --bg-secondary: var(--dark-surface);
    --border: var(--dark-border);
    --text-primary: var(--dark-text);
    --text-secondary: var(--dark-text-secondary);
    --accent: var(--dark-primary);
    --accent-hover: var(--dark-primary-hover);
}

.theme-blue {
    --bg-primary: var(--blue-bg);
    --bg-secondary: var(--blue-surface);
    --border: var(--blue-border);
    --text-primary: var(--blue-text);
    --text-secondary: var(--blue-text-secondary);
    --accent: var(--blue-primary);
    --accent-hover: var(--blue-primary-hover);
}

.theme-green {
    --bg-primary: var(--green-bg);
    --bg-secondary: var(--green-surface);
    --border: var(--green-border);
    --text-primary: var(--green-text);
    --text-secondary: var(--green-text-secondary);
    --accent: var(--green-primary);
    --accent-hover: var(--green-primary-hover);
}

/* Container */
.ide-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Top Bar */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--accent);
}

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

/* Buttons */
button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

button:hover {
    background-color: var(--accent);
    color: white;
}

button i {
    font-size: 1.2rem;
}

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

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

/* Action Buttons */
.actions button {
    padding: 0.5rem;
    border-radius: 8px;
}

.actions button:hover {
    background-color: var(--accent);
    color: white;
}

.actions button i {
    font-size: 1.1rem;
}

/* Preview Buttons */
.preview-actions button,
.preview-sizes button {
    padding: 0.5rem;
    border-radius: 8px;
}

.preview-actions button:hover,
.preview-sizes button:hover {
    background-color: var(--accent);
    color: white;
}

.preview-sizes button.active {
    background-color: var(--accent);
    color: white;
}

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

/* Editor Section */
.editor-section {
    display: flex;
    flex-direction: column;
    width: 50%;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border);
}

/* Editor Tabs */
.editor-tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.tab {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
}

.tab.active {
    background-color: var(--accent);
    color: white;
}

/* Editor Panels */
.editor-panels {
    flex: 1;
    overflow: hidden;
}

.panel {
    display: none;
    height: 100%;
}

.panel.active {
    display: block;
}

/* CodeMirror Customization */
.CodeMirror {
    height: 100% !important;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.6;
    padding: 1rem 0;
}

.CodeMirror-scroll {
    overflow-y: auto !important;
    overflow-x: auto !important;
}

.CodeMirror-gutters {
    border-right: 1px solid var(--border) !important;
    background-color: var(--bg-primary) !important;
}

/* Preview Section */
.preview-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.preview-controls {
    display: flex;
    gap: 0.5rem;
}

.preview-size {
    padding: 0.4rem;
}

.preview-size.active {
    background-color: var(--accent);
    color: white;
}

.preview-frame {
    flex: 1;
    padding: 0.5rem;
    overflow: auto;
}

#preview {
    width: 100%;
    height: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: white;
    padding: 1rem;
}

/* Responsive Preview */
.preview-frame[data-size="desktop"] {
    padding: 1rem;
}

.preview-frame[data-size="tablet"] {
    padding: 2rem;
}

.preview-frame[data-size="tablet"] #preview {
    max-width: 768px;
    margin: 0 auto;
    height: calc(100% - 2rem);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.preview-frame[data-size="mobile"] {
    padding: 2rem;
}

.preview-frame[data-size="mobile"] #preview {
    max-width: 375px;
    margin: 0 auto;
    height: calc(100% - 2rem);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Loading Animation */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-primary);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

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

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

.loading-text {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Initial Page Load Animation */
.page-load {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: opacity 0.3s ease-out;
}

.page-load.hide {
    opacity: 0;
    pointer-events: none;
}

.page-load .loading-spinner {
    width: 60px;
    height: 60px;
    border-width: 5px;
}

.page-load .loading-text {
    font-size: 1.2rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    transform: translateY(20px);
    transition: transform 0.3s ease-out;
}

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

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-body {
    padding: 1rem;
}

/* Input Styles */
.input-group {
    margin-bottom: 1rem;
}

.input-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: inherit;
}

/* Projects List */
.projects-list {
    max-height: 400px;
    overflow-y: auto;
}

.project-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.project-info {
    flex: 1;
}

.project-name {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

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

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

.no-projects {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

/* Share Options */
.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.share-options .btn {
    width: 100%;
    justify-content: center;
}

.copy-all {
    grid-column: span 2;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 6px;
    border: 3px solid var(--bg-secondary);
}

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

/* Settings Modal */
.settings-group {
    margin-bottom: 1.5rem;
}

.settings-label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
}

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

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.theme-option:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.theme-option.active {
    border-color: var(--accent);
    color: var(--accent);
    background-color: var(--bg-secondary);
}

.theme-option i {
    font-size: 1.5rem;
}

/* Switch Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent);
}

input:checked + .slider:before {
    transform: translateX(26px);
    background-color: white;
}