body {
    margin: 0;
    background-color: #f1f5f9;  
}

/* Header */
header {
    display: flex;
    background-color: #ffffff;
    color: black;
    padding: 14px 32px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
    justify-content: space-between;
}
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
    text-decoration: none;
    color: inherit;
}
.logo-container img {
    width: 40px;
    height: auto;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.logo-container span {
    font-size: 20px;
    font-weight: 600;
    color: #111;
    letter-spacing: 0.3px;
}
.logo-container:hover img {
    transform: rotate(-5deg) scale(1.05);
}
.logo-container:active img {
    transform: scale(0.95);
}
.logo-container:hover span {
    color: #2f81f7;
}
.logo-container:visited {
    color: inherit;
}

/* Dropdown */
.dropdown {
    position: relative;
}
.dropdown-toggle {
    padding: 6px 12px;
    background-color: #fffffe;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}
.dropdown-menu {
    position: absolute;
    top: 110%;
    left: 0;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    list-style: none;
    padding: 6px 0;
    margin: 0;
    width: 150px;
    display: none;
    z-index: 999;
}
.dropdown-menu.show {
    display: block;
}
.dropdown-menu li {
    padding: 8px 12px;
    cursor: pointer;
}
.dropdown-menu li:hover {
    background-color: #f1f5f9;
}

/* Controls */
.controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}
.theme-toggle input {
    display: none;
}
.slider {
    position: absolute;
    cursor: pointer;
    background-color: #e5e7eb;
    border-radius: 34px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transition: 0.3s;
}
.slider::before {
    content: "🌙";
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    top: 3px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    transition: 0.3s;
}
input:checked + .slider {
    background-color: #2f81f7;
}
input:checked + .slider::before {
    content: "☀️";
    transform: translateX(24px);
}

/* Buttons */
.run-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #2f81f7;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
}
.run-button:hover {
    background: #1c5ed6;
}
.run-icon {
    width: 16px;
    height: 16px;
}
.clear-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #e5e7eb;
    color: #111;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
}
.clear-button:hover {
    background: #d1d5db;
}
.clear-icon {
    width: 16px;
    height: 16px;
}
.download-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #e5e7eb;
    color: #111;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
}
.download-button:hover {
    background: #d1d5db;
}
.download-icon {
    width: 16px;
    height: 16px;
}

/* Main Layout */
main {
    display: flex;
    height: calc(100vh - 69px);
    overflow: hidden;
}

/* File Explorer */
.file-explorer {
    width: 150px;
    background-color: #ffffff;
    padding: 16px;
    box-shadow: 2px 0 6px rgba(0,0,0,0.08);
    margin: 10px;
    border-radius: 8px;
    overflow-y: auto;
}
.file-explorer h3 {
    font-family: 'Inter', sans-serif;
    margin-top: 0;
    font-size: 18px;
    color: #333;
}
.file-explorer ul {
    list-style: none;
    padding-left: 0;
    margin-top: 15px;
}
.file-explorer li {
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.2s ease, color 0.2s ease;
}
.file-explorer li:hover {
    background-color: #f0f0f0;
    color: #2f81f7;
}
.file-explorer li:active {
    background-color: #e0e0e0;
}
.file-explorer li.active {
    background-color: #e0e7ff;
    color: #2f81f7;
    font-weight: 500;
}
.file-header {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.new-file {
    font-family: 'Inter', sans-serif;
    display: inline-block;
    padding: 8px 16px;
    background-color: #2f81f7;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease, transform 0.1s ease;
}
.new-file:hover {
    background-color: #1c5ed6;
    transform: translateY(-2px);
}
.new-file:active {
    background-color: #1a4dbf;
    transform: translateY(0);
}

/* Editor */
.editor {
    display: flex;
    flex-direction: column;
    flex: 1;
    background-color: #ffffff;
    margin: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    overflow: hidden;
}
.editor-header {
    background-color: #f1f5f9;
    padding: 6px 10px;
    gap: 4px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: inset 0 -1px 0 #e5e7eb;
    overflow-x: auto;
}
.tab {
    background-color: #e2e8f0;
    color: #555;
    padding: 6px 12px;
    border-radius: 6px 6px 0 0;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    flex-shrink: 0;
}
.tab.active {
    background-color: #ffffff;
    color: #111;
    border: 1px solid #e5e7eb;
    border-bottom: none;
    position: relative;
    top: 1px;
}
.close-tab {
    font-size: 11px;
    color: #888;
    cursor: pointer;
    border-radius: 3px;
    padding: 0 2px;
}
.close-tab:hover {
    color: #ff4444;
    background-color: rgba(255,0,0,0.1);
}
.editor-area {
    flex: 1;
    background-color: #ffffff;
    display: flex;
}
.editor textarea {
    width: 100%;
    flex: 1;
    height: auto;
    border: none;
    outline: none;
    resize: none;
    padding: 16px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    background-color: transparent;
    color: #111;
}
.editor textarea::placeholder {
    color: #9ca3af;
}

/* Input Output */
.input-output {
    height: calc(100vh - 80px);
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
    width: 300px;
    gap: 10px;
    margin: 10px;
    background-color: transparent;
}
.input-section,
.output-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    overflow: hidden;
}
.input-section h3,
.output-section h3 {
    margin: 0;
    padding: 8px 12px;
    font-size: 14px;
    border-bottom: 1px solid #e5e7eb;
}
#input-text {
    flex: 1;
    border: none;
    outline: none;
    resize: none;
    font-family: 'Source Code Pro', monospace;
    padding: 12px;
    min-height: 0;
}
.output-box {
    flex: 2;
    padding: 12px;
    overflow: auto;
    background-color: #f9fafb;
    color: #111;
    word-break: break-all;
    white-space: pre-wrap;
}
.output-box pre {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

/* Dark Mode */
body.dark {
    background-color: #0d1117;
    color: #e6edf3;
}
body.dark header {
    background-color: #161b22;
    color: #e6edf3;
    border-bottom: 1px solid #30363d;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
body.dark .logo-container span {
    color: #e6edf3;
}
body.dark .dropdown-toggle {
    background-color: #21262d;
    color: #e6edf3;
    border-color: #30363d;
}
body.dark .dropdown-menu {
    background-color: #161b22;
    border-color: #30363d;
}
body.dark .dropdown-menu li {
    color: #e6edf3;
}
body.dark .dropdown-menu li:hover {
    background-color: #21262d;
}
body.dark .clear-button {
    background-color: #21262d;
    color: #e6edf3;
    border: 1px solid #30363d;
}
body.dark .clear-button:hover {
    background-color: #30363d;
}
body.dark .download-button {
    background-color: #21262d;
    color: #e6edf3;
    border: 1px solid #30363d;
}
body.dark .download-button:hover {
    background-color: #30363d;
}
body.dark .file-explorer {
    background-color: #161b22;
    color: #e6edf3;
    box-shadow: 2px 0 6px rgba(0,0,0,0.3);
}
body.dark .file-explorer h3 {
    color: #e6edf3;
}
body.dark .file-explorer li {
    color: #c9d1d9;
}
body.dark .file-explorer li:hover {
    background-color: #21262d;
    color: #58a6ff;
}
body.dark .file-explorer li.active {
    background-color: #21262d;
    color: #58a6ff;
}
body.dark .editor {
    background-color: #161b22;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
body.dark .editor-header {
    background-color: #161b22;
    border-bottom: 1px solid #30363d;
}
body.dark .tab {
    background-color: #21262d;
    color: #8b949e;
}
body.dark .tab.active {
    background-color: #0d1117;
    color: #e6edf3;
    border-color: #30363d;
}
body.dark .editor-area {
    background-color: #0d1117;
}
body.dark textarea {
    background-color: #0d1117;
    color: #e6edf3;
}
body.dark textarea::placeholder {
    color: #484f58;
}
body.dark .input-section,
body.dark .output-section {
    background-color: #161b22;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
body.dark .input-section h3,
body.dark .output-section h3 {
    color: #e6edf3;
    border-bottom: 1px solid #30363d;
}
body.dark #input-text {
    background-color: #0d1117;
    color: #e6edf3;
}
body.dark #input-text::placeholder {
    color: #484f58;
}
body.dark .output-box {
    background-color: #0d1117;
    color: #e6edf3;
}

/* Status Bar */
.status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 24px;
    background-color: #2f81f7;
    color: white;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 0 16px;
    font-size: 12px;
    z-index: 1000;
}
body.dark .status-bar {
    background-color: #1f6feb;
}
/* Maximize Button */
.maximize-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 0 4px;
    color: #888;
    float: right;
}
.maximize-btn:hover {
    color: #2f81f7;
}
.output-section.maximized {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9998;
    border-radius: 0;
    margin: 0;
    width: 100%;
    height: 100%;
}
body.dark .maximize-btn {
    color: #8b949e;
}
body.dark .maximize-btn:hover {
    color: #58a6ff;
}
.output-section.maximized .maximize-btn {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 10000;
    background: rgba(0,0,0,0.5);
    color: white;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 16px;
}

.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.75);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    z-index: 99999;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}
.toast.show {
    opacity: 1;
}

.context-menu {
  position: fixed;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 9999;
  padding: 4px 0;
  min-width: 130px;
}
.context-item {
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13px;
}
.context-item:hover {
  background-color: #f1f5f9;
}
.context-item.delete-item:hover {
  background-color: #fff0f0;
  color: #ff4444;
}
body.dark .context-menu {
  background: #161b22;
  border-color: #30363d;
}
body.dark .context-item {
  color: #e6edf3;
}
body.dark .context-item:hover {
  background-color: #21262d;
}
body.dark .context-item.delete-item:hover {
  background-color: #2d1b1b;
  color: #ff6666;
}

.shortcuts-btn {
    background: #e5e7eb;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 16px;
    cursor: pointer;
    font-weight: bold;
    color: #111;
}
.shortcuts-btn:hover {
    background: #d1d5db;
}
body.dark .shortcuts-btn {
    background: #21262d;
    color: #e6edf3;
    border: 1px solid #30363d;
}
.shortcuts-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99999;
    align-items: center;
    justify-content: center;
}
.shortcuts-modal.show {
    display: flex;
}
.shortcuts-content {
    background: #ffffff;
    border-radius: 10px;
    padding: 24px;
    width: 400px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.shortcuts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.shortcuts-header h3 {
    margin: 0;
    font-size: 16px;
}
.shortcuts-header button {
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    color: #888;
}
.shortcuts-header button:hover {
    color: #ff4444;
}
.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
}
.shortcuts-table tr {
    border-bottom: 1px solid #e5e7eb;
}
.shortcuts-table td {
    padding: 10px 8px;
    font-size: 13px;
}
.shortcuts-table td:last-child {
    text-align: right;
}
kbd {
    background: #f1f5f9;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    font-family: monospace;
}
body.dark .shortcuts-content {
    background: #161b22;
    color: #e6edf3;
}
body.dark .shortcuts-table tr {
    border-bottom: 1px solid #30363d;
}
body.dark kbd {
    background: #21262d;
    border-color: #30363d;
    color: #e6edf3;
}

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