*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0f172a;--bg2:#1e293b;--bg3:#334155;--text:#e2e8f0;--text2:#94a3b8;--accent:#0d9488;--accent2:#14b8a6;--accent-glow:rgba(13,148,136,.15);--danger:#ef4444;--warning:#f59e0b;--success:#22c55e;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px rgba(0,0,0,.3);--font:system-ui,-apple-system,sans-serif}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
img,svg{max-width:100%;height:auto}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

/* Header */
.site-header{background:var(--bg2);border-bottom:1px solid var(--bg3);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:8px;color:var(--text);font-weight:700;font-size:1.15rem}
.logo:hover{text-decoration:none;color:var(--accent2)}
.main-nav{display:flex;gap:24px}
.main-nav a{color:var(--text2);font-size:.9rem;font-weight:500}
.main-nav a:hover{color:var(--text);text-decoration:none}

/* Hero */
.hero{padding:80px 0 60px;text-align:center;background:linear-gradient(180deg,var(--bg2) 0%,var(--bg) 100%)}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;line-height:1.2;margin-bottom:16px;background:linear-gradient(135deg,var(--text) 0%,var(--accent2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:1.1rem;color:var(--text2);max-width:600px;margin:0 auto 32px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;cursor:pointer;border:none;transition:all .2s;font-family:var(--font)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent2);text-decoration:none;color:#fff}
.btn-secondary{background:var(--bg3);color:var(--text)}
.btn-secondary:hover{background:var(--accent-glow);text-decoration:none}
.btn-sm{padding:6px 14px;font-size:.8rem}
.btn-lg{padding:14px 28px;font-size:1rem}

/* Simulator */
.simulator-section{padding:60px 0}
.sim-layout{display:grid;grid-template-columns:340px 1fr;gap:32px;align-items:start}
.sim-inputs{background:var(--bg2);border-radius:var(--radius);padding:24px;border:1px solid var(--bg3);position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto}
.sim-inputs h2{font-size:1.2rem;margin-bottom:16px}
.preset-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--bg3)}
.preset-label{font-size:.8rem;color:var(--text2)}
.input-group{margin-bottom:16px}
.input-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px;color:var(--text2)}
.input-prefix,.input-suffix{display:flex;align-items:center;background:var(--bg);border:1px solid var(--bg3);border-radius:var(--radius-sm);overflow:hidden}
.input-prefix:focus-within,.input-suffix:focus-within{border-color:var(--accent)}
.prefix,.suffix{padding:0 10px;font-size:.9rem;color:var(--text2);background:var(--bg3);height:40px;display:flex;align-items:center}
.input-group input,.input-group select{width:100%;height:40px;padding:0 12px;background:var(--bg);border:1px solid var(--bg3);border-radius:var(--radius-sm);color:var(--text);font-size:.9rem;font-family:var(--font);outline:none;transition:border-color .2s}
.input-group input:focus,.input-group select:focus{border-color:var(--accent)}
.input-prefix input,.input-suffix input{border:none;height:38px;background:transparent}
.advanced-toggle{margin-top:16px;cursor:pointer;color:var(--text2);font-size:.85rem}
.advanced-toggle[open] summary{margin-bottom:12px}
.advanced-toggle summary{font-weight:600}
.sim-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.save-note{font-size:.8rem;color:var(--success);margin-top:8px;min-height:1.2em}

/* Results */
.result-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.result-card{background:var(--bg2);border-radius:var(--radius);padding:20px;text-align:center;border:1px solid var(--bg3)}
.card-label{display:block;font-size:.75rem;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.card-value{display:block;font-size:1.4rem;font-weight:700;color:var(--accent2)}
.chart-wrap{background:var(--bg2);border-radius:var(--radius);padding:20px;border:1px solid var(--bg3);margin-bottom:24px}
#balanceChart{width:100%;height:auto}
.table-wrap{background:var(--bg2);border-radius:var(--radius);padding:20px;border:1px solid var(--bg3)}
.table-wrap h3{font-size:1rem;margin-bottom:12px}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.85rem}
th{text-align:left;padding:8px 12px;color:var(--text2);font-weight:600;border-bottom:1px solid var(--bg3);white-space:nowrap}
td{padding:8px 12px;border-bottom:1px solid rgba(51,65,85,.5);white-space:nowrap}
tr:last-child td{border-bottom:none}
tr.depleted td{color:var(--danger)}
tr.warning td{color:var(--warning)}

/* Info sections */
.info-section{padding:60px 0}
.info-section.alt{background:var(--bg2)}
.info-section h2{font-size:1.6rem;margin-bottom:32px;text-align:center}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.info-card{background:var(--bg);border-radius:var(--radius);padding:24px;border:1px solid var(--bg3)}
.info-num{width:36px;height:36px;background:var(--accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.info-card h3{font-size:1rem;margin-bottom:8px}
.info-card p{font-size:.9rem;color:var(--text2)}

/* Mistakes */
.mistake-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.mistake-item{background:var(--bg);border-radius:var(--radius);padding:24px;border:1px solid var(--bg3);border-left:3px solid var(--warning)}
.mistake-item h3{font-size:1rem;margin-bottom:8px;color:var(--warning)}
.mistake-item p{font-size:.9rem;color:var(--text2)}

/* FAQ */
.faq-list{max-width:720px;margin:0 auto}
.faq-list details{background:var(--bg2);border-radius:var(--radius);margin-bottom:8px;border:1px solid var(--bg3);overflow:hidden}
.faq-list summary{padding:16px 20px;cursor:pointer;font-weight:600;font-size:.95rem;list-style:none;display:flex;align-items:center;justify-content:space-between}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:'+';font-size:1.2rem;color:var(--accent2);transition:transform .2s}
.faq-list details[open] summary::after{content:'−'}
.faq-list details p{padding:0 20px 16px;font-size:.9rem;color:var(--text2);line-height:1.7}

/* Assumptions */
.assumptions-section{padding:40px 0;background:var(--bg2);border-top:1px solid var(--bg3)}
.assumptions-section h2{font-size:1.2rem;margin-bottom:12px}
.assumptions-section p{font-size:.85rem;color:var(--text2);line-height:1.7}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--bg3);padding:40px 0 20px}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:24px;margin-bottom:24px}
.footer-brand p{font-size:.85rem;color:var(--text2);margin-top:8px;max-width:300px}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{font-size:.85rem;color:var(--text2)}
.footer-links a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--bg3);padding-top:16px;text-align:center}
.footer-bottom p{font-size:.8rem;color:var(--text2)}

/* Responsive */
@media(max-width:900px){
  .sim-layout{grid-template-columns:1fr}
  .sim-inputs{position:static;max-height:none;overflow:visible}
  .result-cards{grid-template-columns:repeat(2,1fr)}
  .main-nav{display:none}
  .hero{padding:48px 0 40px}
}
@media(max-width:500px){
  .result-cards{grid-template-columns:1fr}
  .sim-actions{flex-direction:column}
  .preset-bar{flex-direction:column;align-items:flex-start}
}

/* Print */
@media print{
  .site-header,.site-footer,.sim-inputs,.sim-actions,.assumptions-section,.hero-sub,.btn,.preset-bar,.advanced-toggle{display:none!important}
  .hero{padding:20px 0}
  .hero h1{font-size:1.4rem;-webkit-text-fill-color:initial;color:#000}
  body{background:#fff;color:#000}
  .result-card,.chart-wrap,.table-wrap{border:1px solid #ccc;break-inside:avoid}
  .result-cards{grid-template-columns:repeat(2,1fr)}
  .table-scroll{overflow:visible}
  table{font-size:.75rem}
}

/* Scrollbar */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--bg3);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}