:root {
    --bg-dark: #000000;
    --bg-surface: #0A0A0B;
    --bg-elevated: #101012;
    
    --text-pure: #FFFFFF;
    --text-dim: #94A3B8; /* Slate gray */
    
    --accent: #FCA5A5; /* Was electric blue, now a muted, high-status tactical pale amber/salmon. Wait, military is usually gold/amber. */
    --accent: #D4AF37; /* Tactical Champagne Gold - High Status */
    --success: #34D399; /* Muted precise green */
    --tech-blue: #38BDF8; /* Kept for canvas and specific digital lines */
    
    --border-light: rgba(255, 255, 255, 0.04);
    --border-med: rgba(255, 255, 255, 0.08);
    
    --font-display: 'Outfit', -apple-system, sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-pure);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Global Noise Overlay for physical tooth */
body::after {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.035;
}

/* 2026 Titanium Letter Masking */
.titanium-text {
    background: linear-gradient(180deg, #FFFFFF 0%, #708090 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* Typography Basics */
.mono-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.2em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 1.5rem; display: block; }
.hero-body { font-size: 1.25rem; color: var(--text-dim); max-width: 60ch; line-height: 1.6; margin-bottom: 4rem; }

/* Top Navigation */
.top-nav {
    position: fixed; top: 0; left: 0; width: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000; padding: 1.25rem 0;
}
.nav-container {
    max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 0 2rem;
}
.brand h2 { font-family: var(--font-display); font-size: 1.5rem; letter-spacing: -0.04em; }
.status-indicator { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.7rem; color: var(--success); margin-top: 2px;}
.pulse-dot { width: 6px; height: 6px; background: var(--success); border-radius: 50%; box-shadow: 0 0 10px var(--success); }

.nav-links { list-style: none; display: flex; gap: 1rem; align-items: center; }
.nav-btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.nav-btn:hover {
    background: rgba(212, 175, 55, 0.1); 
    border-color: rgba(212, 175, 55, 0.4);
    color: var(--text-pure);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}
.nav-btn:active {
    transform: translateY(1px);
    background: rgba(212, 175, 55, 0.05);
}

/* Layout Sections */
.full-screen { min-height: 100vh; display: flex; align-items: center; padding: 120px 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; width: 100%; }
.dark-bg { background-color: var(--bg-surface); }

/* Overview / Hero */
.hero-layout { padding-top: 6rem; }
.massive-title {
    font-family: var(--font-display); font-size: 5rem; font-weight: 700;
    letter-spacing: -0.05em; line-height: 1.05; margin-bottom: 2rem;
}
.grid-stats { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 1px; 
    background: var(--border-med); /* creates 1px inner borders */
    border: 1px solid var(--border-med);
    margin-top: 4rem;
}
.stat-box { 
    background: var(--bg-dark); 
    padding: 3.5rem; 
    position: relative;
    overflow: hidden;
    transition: background 0.4s ease;
}
.stat-box:hover { background: var(--bg-surface); }
.stat-box::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
    background: var(--accent); transform: scaleX(0); transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.stat-box:hover::before { transform: scaleX(1); }

.stat-box i { 
    color: var(--text-dim); margin-bottom: 2rem; width: 24px; height: 24px; transition: color 0.4s ease; 
}
.stat-box:hover i { color: var(--accent); }

.stat-box h3 { font-family: var(--font-display); font-size: 1.75rem; font-weight: 500; margin-bottom: 1rem; letter-spacing: -0.03em;}
.stat-box p { color: var(--text-dim); font-size: 1.05rem; }

/* Section Headers */
.section-header { margin-bottom: 4rem; }
.section-title { font-family: var(--font-display); font-size: 3.5rem; letter-spacing: -0.04em; line-height: 1.1; }

/* The Accordion (Workflow) */
.accordion-wrapper { border-top: 1px solid var(--border-med); }
.accordion-item { border-bottom: 1px solid var(--border-med); overflow: hidden; }

.accordion-header {
    width: 100%; display: flex; align-items: center; padding: 2rem 0; cursor: pointer; transition: background 0.3s;
}
.accordion-header:hover { background: var(--bg-surface); }
.step-num { font-family: var(--font-mono); font-size: 1rem; color: var(--text-dim); margin-right: 2rem; }
.accordion-header h3 { font-family: var(--font-display); font-size: 2rem; letter-spacing: -0.02em; flex-grow: 1; }
.role-tag { font-family: var(--font-mono); font-size: 0.8rem; background: var(--bg-elevated); padding: 0.4rem 1rem; border-radius: 2px; margin-right: 2rem; color: var(--text-dim); border: 1px solid var(--border-light); }
.chevron { width: 24px; height: 24px; color: var(--text-dim); transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); }

.accordion-content { height: 0; opacity: 0; overflow: hidden; }
.content-inner { padding: 0 0 3rem 3.5rem; color: var(--text-dim); font-size: 1.125rem; }

/* Expanded State */
.accordion-item.active .chevron { transform: rotate(180deg); color: var(--text-pure); }
.accordion-item.active .accordion-header h3 { color: var(--accent); }
/* The active content is managed by GSAP for height */

.split-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.data-terminal { background: #000; padding: 1.5rem; border-radius: 2px; border: 1px solid #222; margin-top: 2rem; font-family: var(--font-mono); font-size: 0.85rem; color: var(--success); line-height: 1.5; }
.abstract-render { width: 100%; border-radius: 2px; border: 1px solid var(--border-med); object-fit: cover; aspect-ratio: 16/9; opacity: 0.85; mix-blend-mode: screen; filter: grayscale(50%) contrast(120%); display: block; }

/* HUD Wrapper for Military Graphics */
.hud-wrapper { position: relative; display: inline-block; width: 100%; }
.hud-wrapper::before, .hud-wrapper::after { content: ''; position: absolute; width: 16px; height: 16px; border: 2px solid var(--border-light); z-index: 10; transition: border-color 0.3s; }
.hud-wrapper::before { top: 0; left: 0; border-right: none; border-bottom: none; }
.hud-wrapper::after { bottom: 0; right: 0; border-left: none; border-top: none; }
.accordion-item:hover .hud-wrapper::before, .accordion-item:hover .hud-wrapper::after { border-color: var(--accent); }
.hud-status { position: absolute; bottom: 8px; left: 8px; font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-dim); background: #000; padding: 2px 6px; z-index: 10; text-transform: uppercase; border: 1px solid var(--border-light); }

/* Highlight end step */
.highlight-item { border-bottom: 1px solid rgba(212, 175, 55, 0.3); }
.highlight-text { color: var(--text-pure); font-size: 1.5rem; }

/* Timeline */
.timeline-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; border-top: 1px solid var(--border-light); padding-top: 4rem; }
.timeline-node h3 { font-family: var(--font-display); font-size: 1.5rem; margin-bottom: 1rem; letter-spacing: -0.02em; }
.timeline-node p { color: var(--text-dim); font-size: 0.95rem; }
.highlight-node h3 { color: var(--accent); }

/* Indicators */
.metrics-flex { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border-med); border: 1px solid var(--border-med); margin-bottom: 4rem; }
.metric-card { background: var(--bg-dark); padding: 4rem 3rem; position: relative; }
.metric-big { font-family: var(--font-display); font-size: 4rem; font-weight: 700; letter-spacing: -0.05em; color: var(--text-pure); margin-bottom: 1rem; }
.metric-big span { font-size: 1.5rem; color: var(--text-dim); font-weight: 400; letter-spacing: 0; }
.metric-card p { color: var(--text-dim); font-size: 1.125rem; }

.interactive-hud { background: #000; border: 1px solid #222; border-radius: 16px; padding: 3rem; }
.hud-header { display: flex; align-items: center; gap: 12px; font-family: var(--font-mono); color: #666; font-size: 0.8rem; margin-bottom: 2rem; }
.hud-body { font-family: var(--font-mono); font-size: 1rem; margin-bottom: 2rem; }
.hud-type { color: #E5E7EB; margin-bottom: 1rem; }
.hud-success { color: var(--success); display: none; }
.hud-caption { color: var(--text-dim); font-size: 1.125rem; max-width: 60ch; }

@media (max-width: 1024px) {
    .split-content { grid-template-columns: 1fr; gap: 2rem; }
    .timeline-grid { grid-template-columns: 1fr 1fr; }
    .massive-title { font-size: 4rem; }
}
@media (max-width: 768px) {
    .grid-stats, .metrics-flex { flex-direction: column; display: flex; }
    .timeline-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; } /* Mobile nav omitted for brevity in MVP */
    .massive-title { font-size: 3rem; }
    .accordion-header h3 { font-size: 1.25rem; }
    .role-tag { display: none; }
}