/* ==========================================================================
   ML INTUITION HUB - MAIN STYLES & DESIGN SYSTEM (GLASSMORPHISM DARK/LIGHT)
   ========================================================================== */

:root {
    /* Color Palette - Dark Theme (Default) */
    --bg-primary: #0b0f17;
    --bg-secondary: #131926;
    --bg-tertiary: #1b2336;
    --bg-glass: rgba(19, 25, 38, 0.75);
    --bg-glass-card: rgba(27, 35, 54, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 242, 254, 0.3);

    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-glow: #00f2fe;

    /* Accent & Brand Colors */
    --accent-blue: #00f2fe;
    --accent-purple: #7928ca;
    --accent-pink: #ff0080;
    --accent-green: #00e676;
    --accent-orange: #ff9100;
    --accent-cyan: #4facfe;

    /* Gradients */
    --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --gradient-accent: linear-gradient(135deg, #7928ca 0%, #ff0080 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(121, 40, 202, 0.15) 100%);

    /* UI Measurements */
    --sidebar-width: 280px;
    --topbar-height: 72px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    /* Fonts */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --bg-glass-card: rgba(255, 255, 255, 0.75);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 114, 255, 0.4);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-glow: #0072ff;

    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.08);
}

/* Reset & Global Settings */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 242, 254, 0.4);
}

/* App Layout Grid */
.app-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: radial-gradient(circle at 10% 20%, rgba(0, 242, 254, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(121, 40, 202, 0.05) 0%, transparent 40%),
                var(--bg-primary);
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-primary);
}

/* Top Control Bar */
.top-header {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    z-index: 10;
}

.algorithm-title-area {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
}

.title-meta .category-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--accent-blue);
    background: rgba(0, 242, 254, 0.1);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 242, 254, 0.2);
}

.title-meta h1 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-top: 2px;
    color: var(--text-primary);
}

/* Workspace Split Container */
.workspace {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 460px;
    gap: 16px;
    padding: 16px 24px;
    height: calc(100vh - var(--topbar-height));
    overflow: hidden;
}

@media (max-width: 1200px) {
    .workspace {
        grid-template-columns: 1fr 400px;
        padding: 12px;
    }
}

@media (max-width: 900px) {
    .workspace {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
        overflow-y: auto;
    }
    .mobile-sidebar-toggle {
        display: block;
    }
}