/* ── Reset & Base ─────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c-bg:#1a1a1f;--c-surface:#232330;--c-surface2:#2c2c3d;--c-border:#3a3a52;
  --c-accent:#d4a843;--c-accent2:#e8c96a;--c-text:#e8e6df;--c-text-dim:#9a98a8;
  --c-danger:#d9534f;--c-success:#5cb85c;--c-info:#5bc0de;
  --font:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --radius:8px;--shadow:0 2px 12px rgba(0,0,0,.4);
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--c-accent);text-decoration:none}
a:hover,a:focus{color:var(--c-accent2);text-decoration:underline}
button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit}
input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:2px}
/* ── Layout ───────────────────────────────────────── */
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
/* ── Header ───────────────────────────────────────── */
.site-header{background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:16px 0;position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:700;color:var(--c-text)}
.logo svg{flex-shrink:0}
.logo span{color:var(--c-accent)}
.site-nav{display:flex;gap:8px;align-items:center}
.site-nav a{padding:8px 14px;border-radius:var(--radius);color:var(--c-text-dim);font-size:.9rem;transition:background .2s,color .2s}
.site-nav a:hover,.site-nav a[aria-current]{background:var(--c-surface2);color:var(--c-text);text-decoration:none}
.menu-toggle{display:none;background:var(--c-surface2);padding:8px;border-radius:var(--radius);color:var(--c-text)}
/* ── Hero ─────────────────────────────────────────── */
.hero{padding:60px 0 40px;background:linear-gradient(180deg,var(--c-surface) 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-border)}
.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.2;margin-bottom:12px;color:var(--c-text)}
.hero h1 em{font-style:normal;color:var(--c-accent)}
.hero p.lead{font-size:1.1rem;color:var(--c-text-dim);max-width:640px;margin-bottom:24px}
.hero-badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--c-surface2);border:1px solid var(--c-border);border-radius:20px;font-size:.82rem;color:var(--c-text-dim)}
.badge svg{flex-shrink:0}
/* ── Section ──────────────────────────────────────── */
.section{padding:48px 0}
.section+.section{border-top:1px solid var(--c-border)}
.section-title{font-size:1.5rem;margin-bottom:6px}
.section-subtitle{color:var(--c-text-dim);margin-bottom:28px;max-width:600px}
/* ── Circuit Explorer ─────────────────────────────── */
.explorer-grid{display:grid;grid-template-columns:300px 1fr;gap:24px;align-items:start}
.circuit-list{display:flex;flex-direction:column;gap:6px}
.circuit-btn{display:flex;align-items:center;gap:12px;width:100%;padding:14px 16px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);color:var(--c-text);text-align:left;transition:all .2s}
.circuit-btn:hover,.circuit-btn.active{background:var(--c-surface2);border-color:var(--c-accent)}
.circuit-btn.active{box-shadow:0 0 0 1px var(--c-accent)}
.circuit-btn .chip-icon{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;flex-shrink:0}
.circuit-btn .chip-info{flex:1}
.circuit-btn .chip-name{font-size:.95rem;font-weight:600}
.circuit-btn .chip-desc{font-size:.78rem;color:var(--c-text-dim)}
/* ── Signal Flow Diagram ──────────────────────────── */
.flow-panel{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:32px;position:relative;overflow:hidden}
.flow-title{font-size:1.2rem;font-weight:700;margin-bottom:4px}
.flow-tagline{font-size:.85rem;color:var(--c-text-dim);margin-bottom:24px}
.signal-flow{display:flex;align-items:center;gap:0;overflow-x:auto;padding:16px 0}
.flow-node{display:flex;flex-direction:column;align-items:center;min-width:100px;flex-shrink:0}
.flow-node .node-box{padding:10px 16px;background:var(--c-surface2);border:1px solid var(--c-border);border-radius:var(--radius);font-size:.8rem;font-weight:600;text-align:center;min-width:90px}
.flow-node .node-box.highlight{background:#2a3a2a;border-color:var(--c-success);color:var(--c-success)}
.flow-node .node-box.warn{background:#3a3020;border-color:var(--c-accent);color:var(--c-accent)}
.flow-node .node-box.digital{background:#202840;border-color:var(--c-info);color:var(--c-info)}
.flow-node .node-note{font-size:.68rem;color:var(--c-text-dim);margin-top:4px;text-align:center}
.flow-arrow{display:flex;align-items:center;flex-shrink:0;padding:0 2px;color:var(--c-text-dim);font-size:1.2rem}
.flow-feedback{display:flex;align-items:center;justify-content:center;margin-top:12px;padding:10px 20px;border:1px dashed var(--c-border);border-radius:var(--radius);font-size:.82rem;color:var(--c-text-dim)}
.flow-feedback strong{color:var(--c-accent)}
/* ── Circuit Detail Cards ─────────────────────────── */
.detail-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:24px}
.detail-card{background:var(--c-surface2);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px}
.detail-card h4{font-size:.85rem;color:var(--c-text-dim);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.detail-card .value{font-size:1.4rem;font-weight:700;color:var(--c-accent)}
.detail-card .desc{font-size:.82rem;color:var(--c-text-dim);margin-top:4px}
/* ── Sonic Character ──────────────────────────────── */
.sonic-profile{background:var(--c-surface2);border:1px solid var(--c-border);border-radius:var(--radius);padding:24px;margin-top:20px}
.sonic-profile h4{font-size:1rem;margin-bottom:12px}
.sonic-bars{display:flex;flex-direction:column;gap:10px}
.sonic-bar-row{display:grid;grid-template-columns:100px 1fr 40px;align-items:center;gap:12px}
.sonic-bar-label{font-size:.82rem;color:var(--c-text-dim)}
.sonic-bar-track{height:8px;background:var(--c-bg);border-radius:4px;overflow:hidden}
.sonic-bar-fill{height:100%;border-radius:4px;transition:width .6s ease}
.sonic-bar-val{font-size:.8rem;text-align:right;color:var(--c-text-dim)}
/* ── Comparison Table ─────────────────────────────── */
.compare-table-wrap{overflow-x:auto;margin-top:16px}
.compare-table{width:100%;border-collapse:collapse;font-size:.88rem}
.compare-table th,.compare-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--c-border)}
.compare-table th{background:var(--c-surface2);font-weight:600;color:var(--c-text-dim);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;position:sticky;top:0}
.compare-table tr:hover td{background:rgba(255,255,255,.02)}
.compare-table .chip-cell{font-weight:600;color:var(--c-accent)}
.rating-dots{display:flex;gap:3px}
.rating-dot{width:10px;height:10px;border-radius:50%;background:var(--c-border)}
.rating-dot.filled{background:var(--c-accent)}
/* ── Pedal Cross-Reference ────────────────────────── */
.pedal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.pedal-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px;transition:border-color .2s}
.pedal-card:hover{border-color:var(--c-accent)}
.pedal-card .pedal-name{font-size:1.05rem;font-weight:700;margin-bottom:2px}
.pedal-card .pedal-maker{font-size:.82rem;color:var(--c-text-dim);margin-bottom:12px}
.pedal-card .pedal-chip{display:inline-block;padding:4px 10px;background:var(--c-surface2);border-radius:12px;font-size:.78rem;font-weight:600;color:var(--c-accent);margin-bottom:10px}
.pedal-card .pedal-notes{font-size:.84rem;color:var(--c-text-dim)}
.pedal-card .pedal-year{font-size:.75rem;color:var(--c-text-dim);margin-top:10px}
/* ── Modification Guide ───────────────────────────── */
.mod-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.mod-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px}
.mod-item h4{font-size:1rem;margin-bottom:4px}
.mod-item .mod-type{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.7rem;font-weight:600;text-transform:uppercase;margin-bottom:10px}
.mod-type.easy{background:#1a3a1a;color:var(--c-success)}
.mod-type.medium{background:#3a3020;color:var(--c-accent)}
.mod-type.hard{background:#3a1a1a;color:var(--c-danger)}
.mod-item p{font-size:.85rem;color:var(--c-text-dim)}
.mod-item .mod-result{margin-top:10px;font-size:.85rem;padding:8px 12px;background:var(--c-surface2);border-radius:4px;border-left:3px solid var(--c-accent)}
/* ── Build Difficulty ─────────────────────────────── */
.build-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.build-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px;text-align:center}
.build-card .build-level{font-size:1.6rem;font-weight:700;margin-bottom:4px}
.build-card .build-level.l1{color:var(--c-success)}
.build-card .build-level.l2{color:var(--c-accent)}
.build-card .build-level.l3{color:var(--c-danger)}
.build-card .build-name{font-size:.95rem;font-weight:600;margin-bottom:4px}
.build-card .build-note{font-size:.78rem;color:var(--c-text-dim)}
/* ── Chip Pricing ─────────────────────────────────── */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.price-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:20px}
.price-card .chip-id{font-size:1.1rem;font-weight:700;color:var(--c-accent);margin-bottom:4px}
.price-card .chip-status{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.7rem;font-weight:600;margin-bottom:10px}
.chip-status.available{background:#1a3a1a;color:var(--c-success)}
.chip-status.limited{background:#3a3020;color:var(--c-accent)}
.chip-status.nos{background:#3a1a1a;color:var(--c-danger)}
.price-card .chip-price{font-size:1.3rem;font-weight:700;margin-bottom:4px}
.price-card .chip-note{font-size:.8rem;color:var(--c-text-dim)}
/* ── Noise Comparison ─────────────────────────────── */
.noise-chart{display:flex;align-items:flex-end;gap:16px;height:160px;padding:20px 0 32px;border-bottom:1px solid var(--c-border);position:relative}
.noise-bar-group{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}
.noise-bar{width:100%;max-width:60px;border-radius:4px 4px 0 0;transition:height .6s ease;position:relative}
.noise-bar .bar-label{position:absolute;bottom:-24px;left:50%;transform:translateX(-50%);font-size:.72rem;color:var(--c-text-dim);white-space:nowrap}
.noise-bar .bar-val{position:absolute;top:-20px;left:50%;transform:translateX(-50%);font-size:.75rem;font-weight:600;color:var(--c-text-dim)}
.noise-legend{display:flex;gap:20px;margin-top:28px;flex-wrap:wrap}
.legend-item{display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--c-text-dim)}
.legend-swatch{width:14px;height:14px;border-radius:3px}
/* ── Ad Slot ──────────────────────────────────────── */
.ad-slot{margin:24px 0;padding:16px;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--radius);text-align:center;font-size:.8rem;color:var(--c-text-dim)}
/* ── Info Notes ───────────────────────────────────── */
.info-note{background:var(--c-surface2);border-left:3px solid var(--c-accent);padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;margin:20px 0;font-size:.9rem;color:var(--c-text-dim)}
.info-note strong{color:var(--c-text)}
/* ── Footer ───────────────────────────────────────── */
.site-footer{background:var(--c-surface);border-top:1px solid var(--c-border);padding:32px 0;margin-top:48px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:.85rem;color:var(--c-text-dim)}
.footer-links a:hover{color:var(--c-text)}
.footer-eco{font-size:.78rem;color:var(--c-text-dim)}
.footer-eco a{color:var(--c-accent)}
/* ── Responsive ───────────────────────────────────── */
@media(max-width:860px){
  .explorer-grid{grid-template-columns:1fr}
  .circuit-list{flex-direction:row;flex-wrap:wrap}
  .circuit-btn{flex:1;min-width:140px}
  .header-inner{flex-wrap:wrap}
  .site-nav{display:none}
  .site-nav.open{display:flex;flex-direction:column;width:100%;padding-top:12px}
  .menu-toggle{display:flex}
  .signal-flow{padding:16px 8px}
  .flow-node{min-width:80px}
  .flow-node .node-box{min-width:70px;font-size:.72rem;padding:8px 10px}
  .sonic-bar-row{grid-template-columns:80px 1fr 30px}
}
@media(max-width:520px){
  .hero{padding:40px 0 28px}
  .detail-cards{grid-template-columns:1fr}
  .pedal-grid{grid-template-columns:1fr}
  .compare-table{font-size:.78rem}
  .compare-table th,.compare-table td{padding:8px 10px}
  .noise-chart{gap:8px}
}
/* ── Print ────────────────────────────────────────── */
@media print{
  .site-header,.site-footer,.menu-toggle,.ad-slot,.circuit-list{display:none}
  body{background:#fff;color:#000}
  .flow-panel,.detail-card,.pedal-card,.mod-item,.price-card,.build-card{border-color:#ccc;background:#f9f9f9}
}
/* ── Utilities ────────────────────────────────────── */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.text-dim{color:var(--c-text-dim)}
.mt-8{margin-top:8px}
.mt-16{margin-top:16px}
.mb-8{margin-bottom:8px}



/* 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;
}