:root {
    /* THEME: Middleware / Kernel / Vendor */
    --bg-core: #050505;
    --bg-panel: #0f0f0f;
    --bg-input: #000000;
    --border: #262626;
    --border-active: #404040;
    
    --text-main: #f0f0f0;
    --text-dim: #b0b0b0;
    
    --accent: #dca54c; /* Havok-ish Gold/Amber */
    --accent-dim: #dca54c15;
    --accent-hover: #b88635;
    
    --success: #4ade80;
    --error: #ef4444;
    
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-core);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.5;
    border-top: 4px solid var(--accent);
}

/* UTILITIES */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.mono { font-family: var(--font-mono); }
.text-accent { color: var(--accent); }
.text-dim { color: var(--text-dim); }
.border-b { border-bottom: 1px solid var(--border); }

/* NAV - "Vendor Style" (Dense, Professional) */
nav { 
    padding: 0;
    height: 64px;
    border-bottom: 1px solid var(--border); 
    font-family: var(--font-sans);
    font-size: 0.9rem;
    background: var(--bg-core);
    position: sticky;
    top: 0;
    z-index: 50;
}
.nav-inner {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo { font-family: var(--font-mono); font-weight: 700; letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 32px; height: 100%; align-items: center; }
.nav-link { 
    color: var(--text-dim); 
    text-decoration: none; 
    font-weight: 500; 
    transition: color 0.2s;
    height: 100%;
    display: flex;
    align-items: center;
    border-bottom: 2px solid transparent;
}
.nav-link:hover { color: var(--text-main); }
.nav-link.active { color: var(--text-main); border-bottom-color: var(--accent); }

/* HERO */
.hero { padding: 120px 0 100px; }
.hero h1 { 
    font-size: 4rem; 
    line-height: 1.05; 
    margin-bottom: 24px; 
    font-weight: 800; 
    letter-spacing: -2px; 
    color: #fff;
}
.hero p { 
    font-size: 1.25rem; 
    color: var(--text-dim); 
    max-width: 680px; 
    margin-bottom: 48px; 
    line-height: 1.6;
}

/* The "Vendor Badge" - Inspired by PhysX/Havok version numbers */
.release-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 32px;
    border: 1px solid var(--border);
    padding: 4px 12px;
    background: var(--bg-panel);
}

/* BUTTONS - "Evaluate" style */
.btn-group { display: flex; gap: 16px; align-items: center; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 32px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
}
.btn-primary { 
    background: var(--accent); 
    color: #000; 
    border-color: var(--accent);
}
.btn-primary:hover { 
    background: var(--accent-hover); 
    border-color: var(--accent-hover);
}
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.btn-secondary { 
    border-color: var(--border); 
    color: var(--text-main); 
    background: transparent;
}
.btn-secondary:hover { border-color: var(--text-main); background: var(--bg-panel); }

/* BOUNDARIES & GATES */
.boundaries-section { 
    background: var(--bg-panel); 
    padding: 80px 0; 
    border-top: 1px solid var(--border); 
    border-bottom: 1px solid var(--border); 
}
.grid-2 { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 80px; align-items: start; }

.check-list li { 
    margin-bottom: 16px; 
    list-style: none; 
    font-size: 1rem; 
    color: var(--text-dim); 
    display: flex;
    gap: 16px;
    align-items: center;
}
.check-icon { font-family: var(--font-mono); font-weight: bold; }

/* CI GATES PANEL - The "Trust Artifact" */
.ci-panel {
    background: #000;
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}
.ci-header {
    background: #1a1a1a;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    font-weight: 600;
}
.ci-body { padding: 20px; }
.ci-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #1a1a1a;
}
.ci-row:last-child { border: none; padding: 0; margin: 0; }

/* MODAL (Native <dialog>) - "The Evaluate Form" */
dialog {
    background: var(--bg-panel);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 0;
    width: 100%;
    max-width: 500px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 40px 80px rgba(0,0,0,0.8);
}
dialog::backdrop { background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); }

.modal-header {
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-core);
}
.modal-body { padding: 32px; }

.form-group { margin-bottom: 24px; }
.form-label { 
    display: block; 
    font-size: 0.85rem; 
    color: var(--text-dim); 
    margin-bottom: 8px; 
    font-weight: 500;
}
.form-input, .form-select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 12px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus { border-color: var(--accent); }
.form-hint { font-size: 0.75rem; color: var(--text-dim); margin-top: 6px; }

/* FOOTER - "Vendor Style" */
footer { 
    background: var(--bg-core); 
    padding: 80px 0 40px; 
    border-top: 1px solid var(--border); 
    font-size: 0.9rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}
.footer-col h4 { color: var(--text-main); margin-bottom: 20px; font-size: 0.9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }

/* TERMINAL / CODE (Reused from before) */
.terminal-section { padding: 100px 0; }
.terminal-window {
    background: #000;
    border: 1px solid var(--border);
    box-shadow: 0 0 0 1px #1a1a1a;
}
.terminal-header {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
}
.tab-btn {
    background: transparent;
    border: none;
    border-right: 1px solid var(--border);
    color: var(--text-dim);
    padding: 16px 32px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: all 0.2s;
    outline: none;
}
.tab-btn[aria-selected="true"] { color: var(--accent); background: #000; border-bottom: 2px solid var(--accent); }

pre[class*="language-"] { 
    margin: 0 !important; 
    border-radius: 0 !important; 
    background: transparent !important;
    padding: 30px !important;
    height: 400px;
    overflow: auto;
}
code { font-family: var(--font-mono) !important; font-size: 0.9rem !important; }

/* INTEGRATIONS BAR */
.integrations { padding: 40px 0; border-bottom: 1px solid var(--border); opacity: 0.6; }
.logo-grid { display: flex; gap: 40px; justify-content: flex-start; align-items: center; font-family: var(--font-mono); color: var(--text-dim); font-size: 0.9rem; font-weight: bold; }