/* RF Antenna Designer (RFAnt) R1 - styles */
:root{
  --bg:#f4f6f9; --panel:#ffffff; --ink:#1b2430; --muted:#5d6b7c; --line:#d8dee6;
  --acc:#0b5cad; --acc2:#0e7c66; --warn:#b85c00; --err:#b3261e; --chip:#eef3f9;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:13px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
button{font:inherit;border:1px solid var(--line);background:#fff;color:var(--ink);padding:5px 10px;border-radius:5px;cursor:pointer}
button:hover{border-color:#9fb1c6}
button.primary{background:var(--acc);border-color:var(--acc);color:#fff}
button.primary.alt{background:var(--acc2);border-color:var(--acc2)}
button.danger{background:var(--err);border-color:var(--err);color:#fff}
button:disabled{opacity:.5;cursor:not-allowed}
input,select,textarea{font:inherit;border:1px solid var(--line);border-radius:4px;padding:3px 5px;background:#fff;color:var(--ink);min-width:0}
textarea{width:100%;font-family:var(--mono);font-size:12px}
.top{display:flex;justify-content:space-between;align-items:center;padding:8px 14px;background:#10263f;color:#fff;gap:10px;flex-wrap:wrap}
.brand{display:flex;gap:10px;align-items:center}
.logo{font-size:26px;line-height:1}
.home{color:#fff;text-decoration:none;font-weight:600;font-size:12px;letter-spacing:.05em;padding:5px 10px;border:1px solid #2d5482;border-radius:5px;background:#1d3b5e}
.home:hover{background:#2d5482}
.top h1{font-size:17px;margin:0}
.top .sub{font-size:11px;opacity:.8}
.actions{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.actions button{background:#1d3b5e;color:#fff;border-color:#2d5482}
.dd{position:relative}
.ddmenu{display:none;position:absolute;right:0;top:100%;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 6px 18px rgba(0,0,0,.15);z-index:50;min-width:270px;padding:4px 0}
.ddmenu a{display:block;padding:6px 12px;color:var(--ink);cursor:pointer;text-decoration:none}
.ddmenu a:hover{background:var(--chip)}
.dd.open .ddmenu{display:block}
.layout{display:grid;grid-template-columns:380px 1fr;gap:10px;padding:10px;min-height:calc(100vh - 100px)}
.side,.main{background:var(--panel);border:1px solid var(--line);border-radius:8px;min-width:0}
.side{padding:8px;overflow:auto;max-height:calc(100vh - 90px);position:sticky;top:10px}
.main{padding:8px;display:flex;flex-direction:column;gap:6px}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin-bottom:8px;flex-wrap:wrap}
.tabs button{border:none;border-bottom:2px solid transparent;border-radius:0;background:none;padding:6px 10px;color:var(--muted)}
.tabs button.on{border-bottom-color:var(--acc);color:var(--acc);font-weight:600}
.pane,.mpane{display:none}
.pane.on,.mpane.on{display:block}
.fld{display:flex;flex-direction:column;gap:2px;font-size:12px}
.fld>span{color:var(--muted);font-size:11px}
.fld.s{width:118px}.fld.xs{width:78px}
.fld input,.fld select{width:100%}
.form{display:grid;grid-template-columns:1fr 1fr;gap:6px 8px;margin:8px 0}
.form .full{grid-column:1/-1}
.form .chk{flex-direction:row;align-items:center;gap:6px;grid-column:1/-1}
.form .chk span{font-size:12px;color:var(--ink)}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}
.row{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin:6px 0}
.row.small button{padding:3px 8px;font-size:12px}
.inline{display:inline-flex;gap:4px;align-items:center;font-size:12px}
.box{border:1px solid var(--line);border-radius:6px;padding:8px;margin-bottom:8px}
.box h3{margin:0 0 6px;font-size:13px}
.box h3 small{color:var(--muted);font-weight:400}
.hint{color:var(--muted);font-size:11px;margin:6px 0 0}
.msg{min-height:16px;font-size:12px}
.msg.err{color:var(--err)}.msg.ok{color:var(--acc2)}
.notes{font-size:12px;color:#334}
.notes p{margin:4px 0;padding:4px 6px;background:var(--chip);border-radius:4px}
.cut table,.tbl{border-collapse:collapse;width:100%;font-size:12px}
.cut td,.cut th,.tbl td,.tbl th{border:1px solid var(--line);padding:2px 4px;text-align:right;white-space:nowrap}
.cut th,.tbl th{background:#f0f3f7;font-weight:600;position:sticky;top:0}
.cut td:first-child,.cut th:first-child{text-align:left}
.tblwrap{overflow:auto;max-height:280px}
.tblwrap.tall{max-height:340px}
.tbl input,.tbl select{width:100%;border:none;padding:1px 2px;text-align:right;background:transparent}
.tbl input:focus{background:#fffbe6;outline:1px solid #e0c060}
.tbl td.x{text-align:center}
.tbl td.x button{padding:0 5px;border:none;color:var(--err);background:none}
.toolbar{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-end;padding-bottom:6px;border-bottom:1px solid var(--line)}
.sep{width:1px;height:28px;background:var(--line);margin:0 4px}
.progress{flex:1;min-width:180px;height:28px;border:1px solid var(--line);border-radius:5px;position:relative;overflow:hidden;background:#fafbfc}
.progress div{position:absolute;left:0;top:0;bottom:0;width:0;background:#cfe3f7;transition:width .2s}
.progress span{position:relative;display:block;padding:5px 8px;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.summary{display:flex;flex-wrap:wrap;gap:6px}
.card{background:var(--chip);border-radius:6px;padding:4px 8px;min-width:92px}
.card b{display:block;font-size:15px}
.card span{font-size:10.5px;color:var(--muted)}
.card.warn b{color:var(--warn)}
.ctl{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;margin-bottom:4px}
.plot{width:100%;height:420px;border:1px solid var(--line);border-radius:6px;background:#fff}
.plot.big{height:620px}
/* Geometry and 3D pattern: fill the window below the toolbar (at least 1.6x the old 620 px) */
.plot.huge{height:clamp(1000px, calc(100vh - 200px), 1500px)}
/* Polar cuts: at least 1.67x the old 420 px; circles grow with the column width */
.plot.tall{height:clamp(700px, calc(100vh - 240px), 1150px)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}
.matchgrid{display:grid;grid-template-columns:360px 1fr;gap:10px}
.matchout table{border-collapse:collapse;margin:4px 0 10px;font-size:12px}
.matchout td,.matchout th{border:1px solid var(--line);padding:3px 6px;text-align:left}
.matchout th{background:#f0f3f7}
.matchout h4{margin:8px 0 2px}
.info{font-size:12px}
.info table{border-collapse:collapse;margin:4px 0 12px}
.info td,.info th{border:1px solid var(--line);padding:2px 6px;text-align:left}
.info .warn{color:var(--warn)}
.placeholder{padding:10px;border:2px dashed var(--line);border-radius:8px;color:#334}
.foot{text-align:center;color:var(--muted);font-size:11px;padding:6px}
.modal{position:fixed;inset:0;background:rgba(10,20,30,.45);display:flex;align-items:center;justify-content:center;z-index:100}
.modal[hidden]{display:none}
.mbox{background:#fff;border-radius:8px;padding:14px;min-width:320px;max-width:560px}
.noplotly{padding:30px;color:var(--err)}
@media (max-width:1100px){
  .layout{grid-template-columns:1fr}
  .side{position:static;max-height:none}
  .two,.matchgrid{grid-template-columns:1fr}
}