/* dca-compass — editorial "financial almanac" aesthetic. Dependency-free.
   Shares the visual language of the compass tool family. */
:root{
  --paper:#f6f2ea; --ink:#1d1b16; --ink2:#6b6456; --line:#e2dccf;
  --card:#fffdf8; --ember:#b4541f; --ember-soft:#f6e7dc; --teal:#1f6f63;
  --teal-soft:#e2efec; --gold:#9a7b1f; --good:#2f7d4f;
  --shadow:0 1px 2px rgba(29,27,22,.04),0 10px 30px rgba(29,27,22,.07);
  --serif:Georgia,"Times New Roman","Songti SC","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:920px;margin:0 auto;padding:30px 20px 70px}
a{color:var(--teal)}

/* masthead */
.masthead{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;flex-wrap:wrap}
.brand{display:flex;gap:14px;align-items:flex-start}
.compass{font-size:34px;color:var(--ember);line-height:1;margin-top:2px}
h1{font-family:var(--serif);font-size:27px;font-weight:700;margin:0;letter-spacing:.2px}
h1 .zhname{font-size:18px;color:var(--ink2);font-weight:400}
.tag{margin:3px 0 0;color:var(--ink2);font-size:14px}
.controls{display:flex;gap:10px;align-items:center}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:var(--card)}
.seg button{border:none;background:none;padding:7px 13px;font-size:13px;cursor:pointer;color:var(--ink2);font-family:inherit;font-weight:600}
.seg button.on{background:var(--ink);color:#fff}
.privacy{font-size:12.5px;color:var(--ink2);background:var(--teal-soft);border:1px solid #cfe3de;border-radius:10px;padding:8px 13px;margin:16px 0 20px}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:15px;padding:20px;margin-bottom:18px;box-shadow:var(--shadow)}
.card h2{font-family:var(--serif);font-size:18px;margin:0 0 14px}

/* inputs */
.inputs .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.fld{display:flex;flex-direction:column;font-size:13px;color:var(--ink2);font-weight:600}
.fld span{margin-bottom:5px}
.fld select,.fld input{padding:9px 11px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;width:100%}
.fld select:focus,.fld input:focus{outline:none;border-color:var(--teal)}
.amt{display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:9px;background:#fff;padding-left:11px}
.amt span{color:var(--ink2);font-size:15px}
.amt input{border:none;padding-left:4px}
.amt input:focus{outline:none}
.rangehint{margin:14px 0 0;font-size:12.5px;color:#a59c88}

/* verdict */
.verdict{background:linear-gradient(165deg,#fffdf8,#f9f1e6);border-color:#ecdcc8}
.verdict-line{margin:0 0 16px;font-family:var(--serif);font-size:16px;line-height:1.5;color:var(--ink)}
.h2h{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap}
.side{flex:1;min-width:130px;text-align:center;padding:16px 12px;border:1px solid var(--line);border-radius:13px;background:var(--card);position:relative}
.side-label{display:block;font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--ink2)}
.side-val{display:block;font-family:var(--serif);font-size:30px;font-weight:700;color:var(--ink);margin-top:4px}
.side-tag{display:inline-block;min-height:18px;margin-top:6px;font-size:12px;font-weight:700;color:transparent}
.side.winner{border-color:var(--ember);background:var(--ember-soft)}
.side.winner .side-val{color:var(--ember)}
.side.winner .side-tag{color:var(--ember)}
.side.winner .side-tag::before{content:"✦ "}
.vs{font-family:var(--serif);font-style:italic;color:var(--ink2);font-size:15px}

/* comparison table */
.cmp{width:100%;border-collapse:collapse;font-size:14px}
.cmp th,.cmp td{padding:11px 12px;text-align:right;border-bottom:1px solid var(--line)}
.cmp thead th{font-size:12px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--ink2);border-bottom:1.5px solid var(--line)}
.cmp tbody td:first-child,.cmp thead th:first-child{text-align:left;color:var(--ink2);font-weight:600}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp td:nth-child(2){color:var(--teal);font-weight:700;font-variant-numeric:tabular-nums}
.cmp td:nth-child(3){color:var(--ember);font-weight:700;font-variant-numeric:tabular-nums}

/* chart */
.chartbox h2{margin-bottom:8px}
.legend{display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--ink2);margin-bottom:6px}
.lg{display:inline-flex;align-items:center;gap:6px}
.sw{width:16px;height:3px;border-radius:2px;display:inline-block}
.sw.dca{background:var(--teal)}
.sw.lump{background:var(--ember)}
.sw.inv{background:#b9b09c;height:0;border-top:2px dashed #b9b09c}
.chart{width:100%;overflow:hidden}
.chart svg{width:100%;height:auto;display:block}
.ax{stroke:var(--line);stroke-width:1}
.grid{stroke:#efe9dd;stroke-width:1}
.axlbl{fill:var(--ink2);font-size:11px;font-family:var(--sans)}
.series{fill:none;stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.series.dca{stroke:var(--teal)}
.series.lump{stroke:var(--ember)}
.invline{fill:none;stroke:#b9b09c;stroke-width:1.5;stroke-dasharray:5 4}
.dot{stroke:#fff;stroke-width:2}
.dot.dca{fill:var(--teal)}
.dot.lump{fill:var(--ember)}

/* explainer */
.explain{padding:0 20px}
.explain summary{cursor:pointer;font-family:var(--serif);font-size:16px;font-weight:700;padding:18px 0;list-style:none}
.explain summary::-webkit-details-marker{display:none}
.explain summary::before{content:"▸ ";color:var(--ember)}
.explain[open] summary::before{content:"▾ "}
.explain-body{padding:0 0 18px;font-size:13.5px;color:var(--ink2)}
.explain-body h4{color:var(--ink);margin:14px 0 5px;font-size:14px}
.explain-body code{background:#f0ece2;padding:1px 6px;border-radius:5px;color:var(--ember);font-size:12.5px}

footer{text-align:center;font-size:12.5px;color:var(--ink2);margin-top:26px}
footer #dataNote{color:#a59c88;font-size:11.5px}
.disclaimer{font-size:11.5px;color:#a59c88;margin:8px auto 0;max-width:64ch}

@media(max-width:680px){
  .inputs .grid{grid-template-columns:repeat(2,1fr)}
  .side-val{font-size:24px}
  h1{font-size:23px}
}