/* Theme & Variables */
:root {
    --bg-base: #09090B;
    --bg-glass: rgba(24, 24, 27, 0.7);
    --border-glass: rgba(255, 255, 255, 0.1);

    --primary: #8B5CF6;
    /* Violet */
    --primary-hover: #7C3AED;
    --accent: #EC4899;
    /* Pink */
    --accent-glow: rgba(236, 72, 153, 0.5);

    --text-main: #FAFAFA;
    --text-muted: #A1A1AA;

    --success: #10B981;
    --error: #EF4444;

    --font-ui: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Syntax Highlighting */
    --syn-tag: #F472B6;
    /* Pink 400 */
    --syn-attr: #818CF8;
    /* Indigo 400 */
    --syn-string: #34D399;
    /* Emerald 400 */
    --syn-punct: #94A3B8;
    /* Slate 400 */
    --syn-comment: #64748B;
    /* Slate 500 */
    --syn-text: #E2E8F0;
    /* Slate 200 */
    --syn-keyword: #C084FC;
    /* Purple 400 */
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-ui);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

/* Background Blobs */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    animation-delay: -5s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

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

.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Container Layout */
.app-container {
    width: 100%;
    max-width: 1400px;
    height: 90vh;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--accent-glow);
}

.header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    outline: none;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: #FFF;
}

.btn-primary:hover {
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-glass);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Toggles */
.settings-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border-left: 1px solid var(--border-glass);
    padding-left: 1.5rem;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-main);
}

.toggle-label input {
    display: none;
}

.toggle-track {
    width: 36px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    position: relative;
    transition: 0.3s;
}

.toggle-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: #FFF;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-label input:checked+.toggle-track {
    background: var(--primary);
}

.toggle-label input:checked+.toggle-track::after {
    transform: translateX(16px);
}

/* Editor Grid */
.editor-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex: 1;
    overflow: hidden;
}

.pane {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-glass);
}

.pane:last-child {
    border-right: none;
}

.pane-header {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.2);
}

.pane-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.badge {
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.pane-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Textarea / Editor */
.editor-wrapper {
    flex: 1;
    position: relative;
    background: transparent;
    overflow: hidden;
}

.editor-wrapper textarea,
.editor-wrapper pre {
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
    border: none;
    outline: none;
    resize: none;
    overflow: auto;
    position: absolute;
    top: 0;
    left: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    /* Wrap text */
}

/* Input pane simply uses textarea */
#input-html {
    background: transparent;
    color: var(--text-main);
    color: #E2E8F0;
}

/* Output pane uses trick: transparent textarea over formatted `<pre><code>` */
#output-jsx {
    background: transparent;
    color: transparent;
    /* Text transparent, caret visible */
    caret-color: #FFF;
    z-index: 2;
}

#output-highlight {
    display: block;
    width: 100%;
    height: 100%;
    color: var(--syn-text);
}

/* Syntax Highlighting Classes for span injects */
.syn-tag {
    color: var(--syn-tag);
}

.syn-attr {
    color: var(--syn-attr);
    font-style: italic;
}

.syn-string {
    color: var(--syn-string);
}

.syn-punct {
    color: var(--syn-punct);
}

.syn-comment {
    color: var(--syn-comment);
    font-style: italic;
}

.syn-keyword {
    color: var(--syn-keyword);
    font-weight: 600;
}

.syn-exp {
    color: #FBBF24;
}

/* Amber } */

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(16, 185, 129, 0.9);
    color: #FFF;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
    backdrop-filter: blur(10px);
    transition: opacity 0.3s;
    z-index: 100;
}

@media (max-width: 900px) {
    .editor-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }

    .pane {
        border-right: none;
        border-bottom: 1px solid var(--border-glass);
    }

    .pane:last-child {
        border-bottom: none;
    }
}