:root {
    --bg-app: #0F172A;
    /* Slate 900 */
    --bg-panel: rgba(30, 41, 59, 0.7);
    /* Slate 800 translucent */
    --bg-input: #0B1120;
    --bg-editor: #050505;
    --bg-editor-tab: #18181b;

    --border: rgba(148, 163, 184, 0.15);
    /* Slate 400 */
    --border-hover: rgba(148, 163, 184, 0.3);

    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --text-gray-200: #E2E8F0;

    --primary: #8B5CF6;
    /* Violet */
    --primary-hover: #7C3AED;
    --primary-10: rgba(139, 92, 246, 0.15);

    --accent: #38BDF8;
    /* Sky Blue */
    --success: #10B981;
    --success-light: rgba(16, 185, 129, 0.2);

    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'Space Mono', 'Courier New', Courier, monospace;
    /* Crucial for ASCII alignment */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-app);
    color: var(--text-main);
    height: 100vh;
    display: flex;
    overflow: hidden;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

/* Utils */
.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.flex-1 {
    flex: 1;
}

.w-full {
    width: 100%;
}

.full-width {
    width: 100%;
}

.m-0 {
    margin: 0;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.p-4 {
    padding: 1rem;
}

.p-5 {
    padding: 1.25rem;
}

.p-6 {
    padding: 1.5rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-1\.5 {
    padding-top: 0.375rem;
    padding-bottom: 0.375rem;
}

.space-y-3> :not([hidden])~ :not([hidden]) {
    margin-top: 0.75rem;
}

.space-y-6> :not([hidden])~ :not([hidden]) {
    margin-top: 1.5rem;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.grid {
    display: grid;
}

.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.text-xs {
    font-size: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-md {
    font-size: 1rem;
}

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

.text-accent {
    color: var(--accent);
}

.text-white {
    color: #fff;
}

.font-semibold {
    font-weight: 600;
}

.font-mono {
    font-family: var(--font-mono);
}

.tracking-wider {
    letter-spacing: 0.05em;
}

.bg-editor {
    background: var(--bg-editor);
}

.bg-editor-tab {
    background: var(--bg-editor-tab);
}

.bg-panel {
    background: var(--bg-panel);
}

.bg-success {
    background: var(--success);
}

.bg-transparent {
    background: transparent;
}

.border-b {
    border-bottom: 1px solid var(--border);
}

.border-r {
    border-right: 1px solid var(--border);
}

.border-t {
    border-top: 1px solid var(--border);
}

.border {
    border: 1px solid var(--border);
}

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

.rounded-md {
    border-radius: var(--radius-sm);
}

.rounded-lg {
    border-radius: var(--radius-lg);
}

.opacity-0 {
    opacity: 0;
}

.group:hover .group-hover\:opacity-100 {
    opacity: 1;
}

.transition-opacity {
    transition: opacity 0.2s;
}

.transition-colors {
    transition: background-color 0.2s, color 0.2s;
}

.transition-all {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cursor-pointer {
    cursor: pointer;
}

.pointer-events-none {
    pointer-events: none;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.top-4 {
    top: 1rem;
}

.right-4 {
    right: 1rem;
}

.top-6 {
    top: 1.5rem;
}

.right-6 {
    right: 1.5rem;
}

.top-1\/2 {
    top: 50%;
}

.transform {
    transform: var(--tw-transform);
}

.-translate-y-1\/2 {
    --tw-transform: translateY(-50%);
}

.overflow-auto {
    overflow: auto;
}

.scroll-y {
    overflow-y: auto;
}

.whitespace-pre {
    white-space: pre;
}

.whitespace-pre-wrap {
    white-space: pre-wrap;
}

.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-50 {
    z-index: 50;
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
}

/* Components */
.glass {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.backdrop-blur {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.layout {
    display: flex;
    width: 100%;
    height: 100%;
}

.sidebar {
    width: 320px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 5;
}

.workspace {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    background: var(--primary);
    color: white;
    padding: 0.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--primary-10);
}

.label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.inp {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: var(--font-mono);
    resize: vertical;
}

.inp:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-10);
}

select.inp {
    padding-right: 2rem;
}

.appearance-none {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border-radius: var(--radius);
    padding: 0.6rem 1rem;
    transition: all 0.2s;
    font-size: 0.875rem;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

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

.btn.primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-10);
}

.btn.outline {
    background: transparent;
}

.btn.text-btn {
    background: transparent;
    border-color: transparent;
}

.btn.text-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn.sm {
    padding: 0.4rem;
    border-radius: var(--radius-sm);
}

/* Slider Base */
.slider {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--bg-input);
    outline: none;
    margin: 10px 0;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    transition: transform 0.1s;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
}

/* Loader */
.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s infinite linear;
}

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

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

/* Toast */
.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.bg-editor\/80 {
    background-color: rgba(5, 5, 5, 0.8);
}

::selection {
    background: rgba(56, 189, 248, 0.3);
    color: white;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

@media (max-width: 800px) {
    .layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
        flex-shrink: 0;
    }
}