/* astrogem-calculator — shared dark theme + tab styling.
   Palette tokens are the house tokens from the calculator-webapp skill. */
:root{
  --bg:#0d1017;--panel:#161a24;--panel2:#1b2030;--border:#2a3142;--text:#e7e9ee;
  --dim:#97a0b4;--accent:#66c7ff;--high:#ffb86b;--mid:#c78cff;--low:#6ad4ff;
  --none:#4f5666;--useless:#707788;--good:#6ee7a8;--bad:#ff7f7f;
  /* tier colors */
  --legendary:#ffb86b;--relic:#c78cff;--ancient:#6ad4ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text)}
body{font:14px/1.5 -apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:24px 18px 80px}
h1{font-size:25px;margin:0 0 4px;letter-spacing:-.02em}
.tag{color:var(--dim);font-size:13px;margin-bottom:18px}
h2{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin:26px 0 10px;font-weight:700}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.panel+.panel{margin-top:12px}

table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:6px 9px;text-align:left;border-bottom:1px solid var(--border)}
th{color:var(--dim);font-size:10px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
tr:last-child td{border-bottom:none}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.good{color:var(--good)}.bad{color:var(--bad)}.accent{color:var(--accent)}
.legendary{color:var(--legendary)}.relic{color:var(--relic)}.ancient{color:var(--ancient)}
code,.mono{font-family:"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;font-size:12px}
.formula{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:9px 13px;font-family:"SF Mono",Menlo,monospace;font-size:12.5px;overflow-x:auto;white-space:pre}
.grid{display:grid;gap:12px}
.grid.c2{grid-template-columns:1fr 1fr}
.grid.c3{grid-template-columns:1fr 1fr 1fr}

/* ---- header ---- */
.appbar{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---- tab bar ---- */
.tabbar{display:flex;gap:6px;margin:18px 0 16px;border-bottom:1px solid var(--border)}
.tab{background:none;border:none;border-bottom:2px solid transparent;color:var(--dim);
  padding:9px 16px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;
  letter-spacing:.02em;border-radius:0;margin-bottom:-1px}
.tab:hover{color:var(--text)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.tabpane{display:none}
.tabpane.active{display:block}

/* ---- sticky, collapsible input panel (for the UI agents to use) ---- */
.inputs{position:sticky;top:0;z-index:20;background:rgba(13,16,23,.97);
  border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:6px;backdrop-filter:blur(6px)}
.ihdr{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-weight:700;user-select:none;margin-bottom:10px}
.ihdr .tgl{cursor:pointer}
.ihdr #caret{display:inline-block;width:12px}
.ig{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px 14px}
.fld{display:flex;flex-direction:column;gap:2px}
.fld label{font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.04em}
.fld input,.fld select{background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 7px;font-size:13px;font-family:inherit;width:100%}
.fld input:disabled{color:var(--accent);opacity:1;cursor:not-allowed;border-style:dashed}
.fld input:focus,.fld select:focus{outline:1px solid var(--accent)}
.subh{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-weight:700;margin:12px 0 6px}
.subh:first-child{margin-top:0}
.barrow{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap}
button.primary{background:var(--accent);color:#06121f;border:none;border-radius:7px;padding:9px 18px;font-size:14px;font-weight:700;cursor:pointer;font-family:inherit}
button.primary:hover{filter:brightness(1.08)}

/* mode / market toggle buttons */
.mbtn{background:var(--panel2);border:1px solid var(--border);border-radius:6px;padding:6px 14px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;color:var(--dim)}
.mbtn.active{color:#06121f;background:var(--accent)}
.note{color:var(--dim);font-size:11px;margin-top:6px}

/* placeholder block for stub tabs */
.placeholder{border:1px dashed var(--border);border-radius:10px;padding:40px 20px;text-align:center;color:var(--dim)}
.placeholder b{color:var(--text);font-size:16px;display:block;margin-bottom:6px}

details.method{margin-top:26px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:6px 16px}
details.method summary{cursor:pointer;font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:700;padding:8px 0}
details.method p,details.method li{font-size:13px;color:var(--text)}

/* ---- small screens (phones) ----
   The tab bar is the one shell element that can push the page wider than the viewport
   (4 tabs at desktop padding ≈ 382px): let it scroll sideways itself, never the page.
   Wide data tables are handled per-module with overflow-x wrappers. */
@media (max-width:700px){
  .wrap{padding:16px 10px 60px}
  h1{font-size:21px}
  .grid.c2,.grid.c3{grid-template-columns:1fr}
  .tabbar{overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .tabbar::-webkit-scrollbar{display:none}
  .tab{padding:9px 11px;font-size:12.5px;flex:0 0 auto;white-space:nowrap}
  th,td{padding:5px 6px}
}