/* Ebikepartpicker — clean, professional light theme. */
:root{
  --bg:#f4f5f4; --panel:#ffffff; --line:#e6e8e6;
  --text:#141715; --muted:#6f7570; --faint:#a9aea9;
  --accent:#15803d; --accent-dark:#0f5c2c; --accent-soft:#e9f5ec;
  --shadow:0 1px 2px #0000000d, 0 8px 28px #0000000a;
  --radius:16px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
  font:15px/1.55 Inter,-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
[hidden]{display:none!important}
button{font:inherit}

/* ---------- start page ---------- */
.start{min-height:100svh;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:18px;padding:32px 24px;text-align:center;
  background:radial-gradient(90% 60% at 50% 0%, #ffffff 0%, var(--bg) 75%)}
.hero{width:min(560px,88vw);height:auto;filter:drop-shadow(0 24px 40px #0000001f)}
.brand{font-size:clamp(34px,5vw,46px);font-weight:800;letter-spacing:-1.6px;line-height:1.05}
.brand span{color:var(--accent)}
.brand.sm{font-size:20px;letter-spacing:-.7px}
.tagline{margin:0;color:var(--muted);font-size:16px;max-width:420px}
.start select{width:min(360px,88vw)}
.start .cta{margin-top:6px}

/* ---------- buttons & inputs ---------- */
.cta{background:linear-gradient(180deg,#1a9448,var(--accent));color:#fff;border:0;
  border-radius:999px;padding:14px 44px;font-size:16px;font-weight:700;cursor:pointer;
  box-shadow:0 6px 18px #15803d33,inset 0 1px 0 #ffffff2e;transition:transform .12s,box-shadow .12s}
.cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
.cta:active{transform:translateY(0)}
select{appearance:none;-webkit-appearance:none;width:100%;background:var(--panel);color:var(--text);
  border:1px solid #d8dbd8;border-radius:12px;padding:13px 40px 13px 14px;font:inherit;
  font-weight:500;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236f7570' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  box-shadow:var(--shadow);transition:border-color .12s,box-shadow .12s}
select:hover{border-color:#b9beb9}
select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #15803d22}

/* ---------- top bar + tabs ---------- */
.topbar{position:sticky;top:0;z-index:10;background:#fffffff2;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:12px clamp(16px,4vw,40px);display:flex;align-items:center;
  justify-content:space-between;gap:12px}
.tabs{display:flex;gap:4px;background:#eef0ee;border-radius:999px;padding:4px}
.tab{border:0;background:none;font:inherit;font-weight:600;color:var(--muted);
  padding:8px 18px;border-radius:999px;cursor:pointer;transition:all .15s}
.tab.on{background:var(--text);color:#fff;box-shadow:0 2px 8px #00000026}
.wrap{max-width:1320px;margin:auto;padding:24px clamp(16px,4vw,44px) 90px}

/* ---------- builder layout ---------- */
.builder-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);
  gap:clamp(20px,3vw,44px);align-items:start}
.bcol-left{position:sticky;top:84px}
.pick{margin:2px 0 18px}
.src{font-size:11px;color:var(--faint);margin-top:6px}
.stage{position:relative;background:radial-gradient(120% 100% at 50% 0%,#ffffff 0%,#edf1ed 62%,#e2e8e2 100%);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  min-height:280px;display:flex;align-items:center;justify-content:center;
  padding:12px;box-shadow:var(--shadow)}
.stage img{display:block;width:100%;max-height:460px;object-fit:contain;
  filter:drop-shadow(0 18px 28px #0000001c)}
.badges{position:absolute;top:14px;left:14px;display:flex;flex-wrap:wrap;
  gap:8px;max-width:82%}
.badge{background:#101010e6;color:#fff;font-size:12px;font-weight:700;
  border-radius:9px;padding:7px 12px;letter-spacing:.2px;
  box-shadow:0 2px 10px #0003;backdrop-filter:blur(4px)}
.badge .cat{opacity:.55;font-weight:600;margin-right:6px;font-size:10px;
  text-transform:uppercase;letter-spacing:1px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0 4px}
.metric{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:13px 16px;box-shadow:var(--shadow)}
.metric small{display:block;color:var(--muted);font-size:10.5px;font-weight:600;
  text-transform:uppercase;letter-spacing:1.1px;margin-bottom:3px}
.metric strong{font-size:clamp(19px,2.2vw,25px);letter-spacing:-.6px;font-weight:750}
#mTotal{color:var(--accent)}

/* ---------- wizard ---------- */
.stepbar{margin:2px 0 0}
.steplabel{font-size:13px;font-weight:700;margin-bottom:8px;letter-spacing:.2px}
.progress{height:6px;background:var(--line);border-radius:999px;overflow:hidden}
.progress .fill{height:100%;background:linear-gradient(90deg,var(--accent),#22a355);
  width:0;transition:width .25s;border-radius:999px}
#stepBody .ppick{padding:14px 0 4px}
.ppick label{display:block;font-weight:700;font-size:12.5px;margin-bottom:8px;
  text-transform:uppercase;letter-spacing:1.1px;color:#3d3d3d}
.prow{display:flex;align-items:center;justify-content:space-between;
  gap:10px;margin-top:12px;flex-wrap:wrap;background:var(--panel);
  border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.pprice{font-size:19px;font-weight:750;letter-spacing:-.4px;display:flex;
  align-items:center;gap:8px}
.besttag{font-size:10px;font-weight:700;color:var(--accent);
  background:var(--accent-soft);border-radius:999px;padding:3px 9px;
  text-transform:uppercase;letter-spacing:.8px}
.tier{font-size:10px;color:var(--faint);text-transform:uppercase;
  letter-spacing:1px;font-weight:600}
.buy{background:linear-gradient(180deg,#1a9448,var(--accent));color:#fff;text-decoration:none;
  font-weight:700;font-size:13.5px;border-radius:999px;padding:10px 24px;white-space:nowrap;
  box-shadow:0 4px 12px #15803d2e;transition:transform .12s,filter .12s}
.buy:hover{filter:brightness(1.07);transform:translateY(-1px)}
.alts{font-size:11.5px;color:var(--faint);margin-top:8px}
.alts a{color:var(--muted)}
.stepnav{display:flex;gap:12px;margin:18px 0 10px}
.stepnav .cta{flex:1;padding:15px 20px}
.ghostbtn{flex:1;background:var(--panel);border:1px solid #d8dbd8;border-radius:999px;
  padding:15px 20px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;
  box-shadow:var(--shadow);transition:border-color .12s}
.ghostbtn:hover:not(:disabled){border-color:var(--text)}
.ghostbtn:disabled{opacity:.3;cursor:default;box-shadow:none}

/* ---------- build list / review ---------- */
.sect{font-size:12.5px;text-transform:uppercase;letter-spacing:1.6px;
  color:var(--muted);margin:30px 0 8px;font-weight:700}
.build-list{background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:6px 20px;box-shadow:var(--shadow)}
.brow{display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:12px 0;border-bottom:1px solid #f1f3f1;font-size:14px}
.brow:last-child{border-bottom:0}
.brow .n{font-weight:600}
.brow .c{color:var(--faint);font-size:10.5px;text-transform:uppercase;
  letter-spacing:1px;margin-right:8px;font-weight:600}
.brow .p{font-weight:700;white-space:nowrap}
.brow .rb{font-size:12px;color:var(--accent);font-weight:700;text-decoration:none}
.brow.total{border-top:2px solid var(--text);margin-top:4px}
.brow.total .p{font-size:18px}
.actions{display:flex;gap:20px;margin:20px 2px;flex-wrap:wrap}
.link{border:0;background:none;color:var(--muted);font:inherit;font-size:13px;
  font-weight:600;cursor:pointer;padding:4px 0;text-decoration:underline;
  text-underline-offset:3px}
.link:hover{color:var(--text)}
.micro{font-size:11px;color:var(--faint);margin:8px 2px}

/* ---------- builds tab ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:18px;margin-top:8px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 2px 4px #0000000d,0 14px 34px #00000012}
.card img{width:100%;height:190px;object-fit:cover;background:#eef0ee}
.card .body{padding:18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .owner{font-size:10.5px;color:var(--faint);text-transform:uppercase;
  letter-spacing:1.3px;font-weight:700}
.card h3{margin:0;font-size:17.5px;letter-spacing:-.4px}
.card .blurb{font-size:13px;color:var(--muted);margin:0}
.card ul{margin:0;padding:0;list-style:none;font-size:13px}
.card li{display:flex;justify-content:space-between;gap:8px;padding:6px 0;
  border-bottom:1px solid #f2f4f2}
.card li:last-child{border-bottom:0}
.card li span:last-child{font-weight:700;white-space:nowrap}
.card .gtotal{display:flex;justify-content:space-between;font-weight:800;
  font-size:15.5px;padding-top:8px}
.copybtn{margin-top:8px;border:1px solid #d8dbd8;background:#fff;
  border-radius:999px;padding:11px;font:inherit;font-weight:700;font-size:13.5px;
  cursor:pointer;transition:border-color .12s}
.copybtn:hover{border-color:var(--text)}
.guidehead{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.tiertag{font-size:10px;font-weight:700;text-transform:uppercase;
  letter-spacing:1px;color:var(--accent);background:var(--accent-soft);
  border-radius:999px;padding:3px 10px;white-space:nowrap}

.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);
  background:#161616;color:#fff;border-radius:999px;padding:12px 24px;
  font-size:13.5px;font-weight:600;display:none;z-index:50;
  box-shadow:0 8px 28px #00000040;max-width:88vw;text-align:center}

@media(max-width:900px){
  .builder-grid{grid-template-columns:1fr}
  .bcol-left{position:static}
}
@media(max-width:640px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:1fr}
  .stage{min-height:220px}
}

/* ---------- searchable bike picker ---------- */
.combobox{position:relative}
.combobox input{width:100%;background:var(--panel);color:var(--text);
  border:1px solid #d8dbd8;border-radius:12px;padding:13px 42px 13px 14px;
  font:inherit;font-weight:500;box-shadow:var(--shadow);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='15' height='15' viewBox='0 0 24 24' fill='none' stroke='%236f7570' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  transition:border-color .12s,box-shadow .12s}
.combobox input:hover{border-color:#b9beb9}
.combobox input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #15803d22}
.start-combo{width:min(360px,88vw)}
.combo-list{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--panel);
  border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 44px #0000001e;
  max-height:300px;overflow:auto;z-index:30;padding:6px}
.combo-item{display:flex;justify-content:space-between;align-items:center;gap:10px;
  width:100%;padding:12px;border:0;border-radius:10px;background:none;cursor:pointer;
  font:inherit;text-align:left;color:var(--text)}
.combo-item:hover{background:var(--accent-soft)}
.combo-item span:first-child{font-weight:600}
.combo-price{color:var(--muted);font-size:13px;white-space:nowrap}
.combo-empty{padding:14px;color:var(--muted);font-size:13px;text-align:center}