:root {
    /* Color Palette - Deep Space & Neon */
    --bg-void: #050510;
    --bg-panel: rgba(20, 20, 35, 0.6);
    --bg-panel-hover: rgba(30, 30, 50, 0.7);

    --accent-primary: #00f3ff;
    /* Electric Blue */
    --accent-secondary: #bc13fe;
    /* Neon Purple */
    --accent-success: #00ff9d;
    --accent-warning: #ffb800;
    --accent-error: #ff3860;

    --text-primary: #ffffff;
    --text-secondary: #a0a0c0;
    --text-dim: #505070;

    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 243, 255, 0.3);

    /* Typography */
    --font-ui: 'Inter', system-ui, sans-serif;
    --font-display: 'Orbitron', sans-serif;
    --font-code: 'JetBrains Mono', monospace;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Effects */
    --glass-blur: blur(20px);
    --shadow-glow: 0 0 20px rgba(0, 243, 255, 0.15);
}

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

body {
    background-color: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-ui);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Background Effects */
.bg-eff#neural-viz {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 5;
    /* increased to be above background particles but below content/builder */
    display: none;
    /* Hidden by default */
}

/* Make sure builder is above viz */
.builder-panel {
    z-index: 100 !important;
}

.bg-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-primary);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-secondary);
    bottom: -100px;
    right: -100px;
    animation-delay: -10s;
}

@keyframes float {

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

    50% {
        transform: translate(50px, 50px);
    }
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100%;
    backdrop-filter: var(--glass-blur);
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: rgba(10, 10, 20, 0.8);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    z-index: 10;
}

.brand {
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-glitch {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--text-primary);
    letter-spacing: 2px;
    position: relative;
    text-shadow: 0 0 10px var(--accent-primary);
}

.version-badge {
    font-family: var(--font-code);
    font-size: 0.7rem;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    padding: 2px 6px;
    border-radius: 4px;
    opacity: 0.8;
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.nav-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 4px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-btn .icon {
    margin-right: 10px;
    font-size: 1.1rem;
}

.nav-btn:hover {
    background: var(--bg-panel-hover);
    color: var(--text-primary);
    border-color: var(--border-glass);
    transform: translateX(4px);
}

.nav-btn.active {
    background: rgba(0, 243, 255, 0.1);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-glass);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-code);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-success);
    box-shadow: 0 0 10px var(--accent-success);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Neural Visualization */
.neural-viz-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
    background: radial-gradient(circle at center, rgba(10, 10, 30, 0.8) 0%, var(--bg-void) 100%);
}

.neural-viz-container.active {
    opacity: 1;
}

#neuralCanvas {
    width: 100%;
    height: 100%;
}

.viz-overlay {
    position: absolute;
    bottom: 40%;
    right: 40px;
    text-align: right;
    font-family: var(--font-display);
}

.viz-status {
    font-size: 1.2rem;
    color: var(--accent-primary);
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--accent-primary);
    animation: pulse 1s infinite;
}

.viz-metrics {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.metric {
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.metric .value {
    color: var(--accent-success);
    margin-left: 10px;
    font-weight: bold;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    z-index: 1;
    /* Ensure content is above background but below viz if needed, wait, viz is inside main-content */
}

/* Ensure editor and terminal are above viz */
.editor-area,
.terminal-area,
.top-bar {
    z-index: 2;
    position: relative;
    background: rgba(5, 5, 10, 0.4);
    /* Make slightly transparent to see viz behind */
    backdrop-filter: blur(5px);
}

/* Top Bar */
.top-bar {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--border-glass);
    background: rgba(10, 10, 20, 0.4);
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-code);
    color: var(--text-secondary);
}

.file-status {
    font-size: 0.7rem;
    color: var(--accent-warning);
    opacity: 0.8;
}

.runtime-info {
    display: flex;
    gap: var(--spacing-md);
}

.runtime-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--border-glass);
}

/* Editor Area */
.editor-area {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.editor-container {
    display: flex;
    height: 100%;
}

.line-numbers {
    width: 60px;
    padding: 20px 10px;
    text-align: right;
    font-family: var(--font-code);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-dim);
    background: rgba(0, 0, 0, 0.2);
    border-right: 1px solid var(--border-glass);
    user-select: none;
}

.code-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-code);
    font-size: 14px;
    line-height: 1.6;
    padding: 20px;
    resize: none;
    outline: none;
    white-space: pre;
}

.code-input::placeholder {
    color: var(--text-dim);
}

/* Terminal Area */
.terminal-area {
    height: 35%;
    background: rgba(5, 5, 10, 0.9);
    border-top: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    transition: height 0.3s ease;
}

.terminal-header {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-glass);
}

.terminal-tabs {
    display: flex;
    gap: 2px;
}

.tab {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.75rem;
    padding: 8px 16px;
    cursor: pointer;
    position: relative;
    letter-spacing: 1px;
}

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

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -9px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-primary);
    box-shadow: 0 -2px 10px var(--accent-primary);
}

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

.action-btn {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.action-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.action-btn.primary {
    background: rgba(0, 243, 255, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    font-weight: 600;
}

.action-btn.primary:hover {
    background: var(--accent-primary);
    color: #000;
    box-shadow: 0 0 15px var(--accent-primary);
}

.terminal-content {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    font-family: var(--font-code);
    font-size: 0.9rem;
}

.terminal-output {
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-all;
}

.terminal-prompt {
    color: var(--accent-success);
    margin-right: 8px;
}

.terminal-text {
    color: var(--text-secondary);
}

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

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

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

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 60px;
        padding: 10px 20px;
        border-right: none;
        border-bottom: 1px solid var(--border-glass);
        overflow: hidden;
        transition: height 0.3s ease;
        position: fixed;
        /* Fixed position to stay on top */
        top: 0;
        left: 0;
        z-index: 100;
        backdrop-filter: blur(15px);
        /* Ensure background is blurred */
    }

    .sidebar.active {
        height: auto;
        max-height: 80vh;
        /* Allow more height */
        overflow-y: auto;
        background: rgba(10, 10, 20, 0.98);
        /* Less transparent when active */
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    /* Push content down so it's not hidden behind fixed header */
    .main-content {
        margin-top: 60px;
        height: calc(100vh - 60px);
    }

    .brand {
        margin-bottom: 0;
        height: 40px;
    }

    .brand-right {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .mobile-toggle {
        display: block;
        background: transparent;
        border: 1px solid var(--border-glass);
        color: var(--text-primary);
        padding: 4px 8px;
        border-radius: 4px;
        cursor: pointer;
        font-size: 1.2rem;
    }

    .nav-menu {
        display: none;
        margin-top: 20px;
        padding-bottom: 20px;
        /* Add padding for scroll */
    }

    .sidebar.active .nav-menu {
        display: block;
    }

    .sidebar-footer {
        display: none;
        margin-top: 20px;
    }

    .sidebar.active .sidebar-footer {
        display: block;
    }

    .terminal-area {
        height: 40%;
    }
}

/* Desktop Styles for Toggle */
/* Builder Panel */
.builder-panel {
    position: absolute;
    top: 80px;
    right: 20px;
    width: 300px;
    background: rgba(10, 10, 25, 0.9);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: var(--spacing-md);
    z-index: 50;
    backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    display: none;
    /* Hidden by default */
    transform: translateX(20px);
    opacity: 0;
    transition: all 0.3s ease;
}

.builder-panel.active {
    display: flex;
    flex-direction: column;
    transform: translateX(0);
    opacity: 1;
}

.builder-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-glass);
}

.builder-header h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--accent-primary);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.2s;
}

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

.config-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.config-row input {
    width: 60px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 4px;
    text-align: center;
}

.layers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: var(--spacing-md);
    max-height: 200px;
    overflow-y: auto;
}

.layer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    padding: 8px;
    border-radius: 6px;
    border: 1px solid var(--border-glass);
}

.add-layer-btn {
    width: 100%;
    padding: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px dashed var(--border-glass);
    color: var(--text-secondary);
    border-radius: 6px;
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    font-family: var(--font-ui);
    transition: all 0.2s;
}

.add-layer-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.framework-select {
    display: flex;
    flex-wrap: wrap;
    /* allow wrapping on small screens */
    gap: 15px;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-ui);
    font-size: 0.85rem;
}

.framework-select label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--text-secondary);
}

.full-width {
    width: 100%;
    justify-content: center;
    padding: 12px;
}

/* Mobile Responsive adjustment for builder */
@media (max-width: 768px) {
    .builder-panel {
        top: 70px;
        right: 10px;
        left: 10px;
        width: auto;
    }
}

.mobile-toggle {
    display: none;
}