:root{--bg-primary: #0a0d14;--bg-secondary: #111622;--bg-card: rgba(18, 24, 38, .75);--bg-card-hover: rgba(26, 35, 54, .85);--bg-glass: rgba(14, 19, 31, .8);--border-subtle: rgba(255, 255, 255, .08);--border-highlight: rgba(99, 102, 241, .35);--accent-primary: #6366f1;--accent-primary-hover: #4f46e5;--accent-primary-glow: rgba(99, 102, 241, .25);--accent-cyan: #06b6d4;--accent-cyan-glow: rgba(6, 182, 212, .25);--accent-emerald: #10b981;--accent-emerald-glow: rgba(16, 185, 129, .2);--accent-amber: #f59e0b;--accent-amber-glow: rgba(245, 158, 11, .25);--accent-rose: #f43f5e;--accent-rose-glow: rgba(244, 63, 94, .25);--text-main: #f1f5f9;--text-muted: #94a3b8;--text-dim: #64748b;--text-inverse: #090d16;--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .35);--shadow-md: 0 8px 24px rgba(0, 0, 0, .45);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .6);--shadow-glow: 0 0 25px var(--accent-primary-glow);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .4s cubic-bezier(.34, 1.56, .64, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;min-height:100vh;background-color:var(--bg-primary);color:var(--text-main);font-family:var(--font-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 15% 15%,rgba(99,102,241,.12) 0%,transparent 40%),radial-gradient(circle at 85% 85%,rgba(6,182,212,.08) 0%,transparent 40%),linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);background-size:100% 100%,100% 100%,40px 40px,40px 40px;pointer-events:none;z-index:-1}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;color:var(--text-main);letter-spacing:-.02em}p{color:var(--text-muted)}a{color:inherit;text-decoration:none}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:2rem 1.5rem 4rem}.header-bar{position:sticky;top:0;z-index:50;background:#0a0d14d9;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle)}.header-inner{max-width:1280px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.brand-link{display:flex;align-items:center;gap:.75rem;font-family:var(--font-heading);font-size:1.25rem;font-weight:800;color:var(--text-main);letter-spacing:-.02em}.brand-badge{background:linear-gradient(135deg,var(--accent-primary),var(--accent-cyan));color:#fff;font-size:.65rem;font-weight:700;text-transform:uppercase;padding:.2rem .5rem;border-radius:var(--radius-full);letter-spacing:.05em}.nav-links{display:flex;align-items:center;gap:1.25rem}.nav-item{font-size:.9rem;font-weight:500;color:var(--text-muted);padding:.5rem .875rem;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.nav-item:hover,.nav-item.active{color:var(--text-main);background:#ffffff0d}.nav-item.active{border-bottom:2px solid var(--accent-primary)}.session-indicator{display:flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.8rem;color:var(--text-muted);background:#ffffff0a;padding:.35rem .75rem;border-radius:var(--radius-full);border:1px solid var(--border-subtle)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-emerald);box-shadow:0 0 8px var(--accent-emerald);animation:pulse-dot 2s infinite ease-in-out}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.glass-card{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:1.5rem;box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.glass-card:hover{border-color:#ffffff26}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-family:var(--font-body);font-size:.95rem;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;border:1px solid transparent;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.btn:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),#4f46e5);color:#fff;box-shadow:0 4px 14px var(--accent-primary-glow)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.btn-primary:active:not(:disabled){transform:translateY(1px)}.btn-danger{background:linear-gradient(135deg,var(--accent-rose),#e11d48);color:#fff;box-shadow:0 4px 14px var(--accent-rose-glow)}.btn-danger:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #f43f5e66}.btn-amber{background:linear-gradient(135deg,var(--accent-amber),#d97706);color:#1e1302;box-shadow:0 4px 14px var(--accent-amber-glow);font-weight:700}.btn-amber:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #f59e0b73}.btn-secondary{background:#ffffff0f;color:var(--text-main);border:1px solid var(--border-subtle)}.btn-secondary:hover:not(:disabled){background:#ffffff1a;border-color:#fff3}.btn-lg{padding:.9rem 1.8rem;font-size:1.05rem}.btn-sm{padding:.4rem .8rem;font-size:.825rem}.simulation-viewport-wrapper{position:relative;width:100%;max-width:920px;margin:0 auto;border-radius:var(--radius-lg);overflow:hidden;background:#0f1422;border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-lg),0 0 50px #6366f11a}.simulation-canvas-area{position:relative;width:100%;height:440px;display:flex;align-items:center;justify-content:center}.overlay-hud{position:absolute;top:1rem;left:1rem;right:1rem;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none;z-index:10}.overlay-hud>*{pointer-events:auto}.hud-pill{background:#0f1420d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:.5rem .85rem;font-family:var(--font-mono);font-size:.825rem;display:flex;align-items:center;gap:.6rem;box-shadow:var(--shadow-sm)}.hud-state-badge{text-transform:uppercase;font-weight:700;font-size:.75rem;letter-spacing:.05em;padding:.2rem .5rem;border-radius:var(--radius-full)}.hud-state-idle{background:#94a3b833;color:#94a3b8}.hud-state-approaching{background:#f59e0b40;color:#f59e0b;animation:pulse-badge 1s infinite alternate}.hud-state-resolved_diverted{background:#06b6d440;color:#06b6d4}.hud-state-resolved_main_track{background:#f43f5e40;color:#f43f5e}@keyframes pulse-badge{0%{opacity:.7}to{opacity:1}}.overlay-controls{position:absolute;bottom:1.25rem;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:1rem;background:#0d111ce6;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-full);padding:.6rem 1.25rem;box-shadow:var(--shadow-md),0 0 30px #00000080;z-index:10}.telemetry-table{width:100%;border-collapse:collapse;margin-top:1rem;font-size:.9rem}.telemetry-table th{text-align:left;padding:.75rem 1rem;font-family:var(--font-heading);font-weight:600;color:var(--text-dim);border-bottom:1px solid var(--border-subtle);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.telemetry-table td{padding:.9rem 1rem;border-bottom:1px solid rgba(255,255,255,.04);font-family:var(--font-mono);color:var(--text-main)}.telemetry-table tr:hover td{background:#ffffff05}.tag{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .6rem;border-radius:var(--radius-sm);font-size:.75rem;font-weight:600;letter-spacing:.02em}.tag-divert{background:#06b6d426;color:#38bdf8;border:1px solid rgba(6,182,212,.3)}.tag-do_nothing{background:#f43f5e26;color:#fb7185;border:1px solid rgba(244,63,94,.3)}.result-callout{margin-top:1.5rem;padding:1.25rem 1.5rem;border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:#ffffff08;display:flex;align-items:center;justify-content:space-between;gap:1rem}.result-callout.diverted{border-color:#06b6d466;background:#06b6d414}.result-callout.main_track{border-color:#f43f5e66;background:#f43f5e14}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .3s cubic-bezier(.16,1,.3,1) forwards}@media (max-width: 768px){.simulation-canvas-area{height:340px}.overlay-controls{width:90%;justify-content:center}}