:root{
  --bg:#0b0f17; --card:#131a26; --card2:#0f1521; --line:#222c3d;
  --txt:#e7edf6; --muted:#8b97aa; --accent:#3b82f6;
  --overheat:#ef4444; --caution:#f59e0b; --normal:#22c55e; --cooldown:#3b82f6;
  --up:#ef4444; --down:#3b82f6;
  --tg:#229ED9;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 50% -10%, #16203099, transparent), var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Noto Sans KR",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.5;
}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
a{color:var(--accent);text-decoration:none}

/* Topbar */
.topbar{border-bottom:1px solid var(--line);background:#0b0f17cc;backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:11px;padding-bottom:11px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand .logo{font-size:26px;flex:0 0 auto}
.brand h1{font-size:18px;margin:0;letter-spacing:-.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .sub{margin:1px 0 0;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Telegram button */
.tg{display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;white-space:nowrap;
  font-size:14px;font-weight:600;color:#fff;background:var(--tg);border:none;
  padding:6px 12px;border-radius:999px;box-shadow:0 2px 10px #229ed94d;transition:background .15s,transform .15s}
.tg:hover{background:#1b8ec4;color:#fff}
.tg:active{transform:scale(.97)}
.tg svg{flex:0 0 auto;display:block;width:18px;height:18px}

/* Cards */
.card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:16px;padding:18px;margin:16px 0;box-shadow:0 6px 24px #00000033}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:10px;flex-wrap:wrap}
.card-head h2,.theory h2{font-size:15px;margin:0;letter-spacing:-.2px}

/* Hero */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:18px}
.badge-row{display:flex;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.type-badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:#1f2a3d;border:1px solid var(--line);color:var(--txt)}
.type-badge.intraday{background:#3a2a12;border-color:#6b4a16;color:#fcd34d}
.type-badge.close{background:#10261a;border-color:#1d5a37;color:#86efac}
.ts{font-size:12px;color:var(--muted)}
.disp{font-size:64px;font-weight:800;letter-spacing:-2px;line-height:1.05;margin-top:4px}
.disp .pct{font-size:26px;font-weight:700;color:var(--muted);margin-left:4px}
.zone{font-size:16px;font-weight:700;margin-top:2px}
.disp-delta{font-size:13px;color:var(--muted);margin-top:4px}
.hero-right{display:flex;flex-direction:column;gap:10px;justify-content:center}
.stat{display:flex;align-items:baseline;gap:8px;border-bottom:1px dashed var(--line);padding-bottom:8px}
.stat .k{font-size:12px;color:var(--muted);min-width:88px}
.stat .v{font-size:18px;font-weight:700}
.stat .v.small{font-size:13px;font-weight:600;color:var(--muted)}
.stat .chg{font-size:13px;font-weight:600}
.note{font-size:12px;color:var(--muted);margin-top:2px}

/* zone colors */
.z-overheat{color:var(--overheat)} .z-caution{color:var(--caution)}
.z-normal{color:var(--normal)} .z-cooldown{color:var(--cooldown)}
.up{color:var(--up)} .down{color:var(--down)}

/* Gauge */
.gauge-card{padding:18px}
.gauge-wrap{position:relative;padding-top:30px}
.gauge-track{position:relative;display:flex;height:34px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.seg{height:100%}
.seg.cooldown{flex:0 0 22.222%;background:var(--cooldown)}
.seg.normal{flex:0 0 33.333%;background:var(--normal)}
.seg.caution{flex:0 0 22.222%;background:var(--caution)}
.seg.overheat{flex:0 0 22.222%;background:var(--overheat)}
/* marker (current value) — bubble above the bar, triangle points down */
.marker{position:absolute;top:0;transform:translateX(-50%);transition:left .5s ease;pointer-events:none;z-index:3}
.marker .mlabel{position:relative;display:block;font-size:12px;font-weight:800;background:var(--txt);color:var(--bg);
  padding:3px 8px;border-radius:7px;white-space:nowrap;box-shadow:0 3px 9px #0008}
.marker .mlabel::after{content:"";position:absolute;left:50%;top:100%;transform:translateX(-50%);
  border:6px solid transparent;border-top-color:var(--txt)}
/* boundary ticks below the bar */
.gauge-ticks{position:relative;height:18px;margin-top:7px}
.gauge-ticks .tick{position:absolute;transform:translateX(-50%);font-size:11px;font-weight:700;color:var(--muted)}
.gauge-ticks .tick::before{content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);width:1px;height:6px;background:var(--line)}
/* legend */
.gauge-legend{display:flex;flex-wrap:wrap;gap:7px 12px;margin-top:14px}
.gauge-legend .lg{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;color:var(--muted);white-space:nowrap}
.gauge-legend .lg i{width:9px;height:9px;border-radius:3px;flex:0 0 auto}
.gauge-legend .lg b{color:var(--txt);font-weight:700}
.gauge-legend .cooldown i{background:var(--cooldown)}
.gauge-legend .normal i{background:var(--normal)}
.gauge-legend .caution i{background:var(--caution)}
.gauge-legend .overheat i{background:var(--overheat)}

/* Range buttons */
.range-btns{display:flex;gap:6px;flex-wrap:wrap}
.range-btns button{background:#0f1521;border:1px solid var(--line);color:var(--muted);font-size:12px;padding:5px 11px;border-radius:8px;cursor:pointer}
.range-btns button.on{background:var(--accent);border-color:var(--accent);color:#fff}
.legend-hint{font-size:11.5px;color:var(--muted)}
.legend-row{margin:-2px 0 10px}

/* Charts */
.chart-box{position:relative;height:300px;touch-action:pan-y}
@media(max-width:640px){.chart-box{height:240px}}
.chart-hint{font-size:11px;color:var(--muted);margin:8px 2px 0;text-align:center;opacity:.8}

/* Theory */
.theory p{font-size:14px;margin:8px 0}
.theory-list{list-style:none;padding:0;margin:12px 0;display:flex;flex-direction:column;gap:8px}
.theory-list li{font-size:13.5px;display:flex;align-items:center;gap:10px}
.tag{font-size:11.5px;font-weight:800;padding:3px 8px;border-radius:6px;color:#0b0f17;min-width:78px;text-align:center;flex:0 0 auto}
.tag.overheat{background:var(--overheat);color:#fff} .tag.caution{background:var(--caution);color:#0b0f17}
.tag.normal{background:var(--normal);color:#0b0f17} .tag.cooldown{background:var(--cooldown);color:#fff}
.muted{color:var(--muted);font-size:12px}

/* Table */
.table-box{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 8px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{color:var(--muted);font-weight:600;font-size:12px}
.pill{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px}
.pill.overheat{background:#3a1414;color:#fca5a5} .pill.caution{background:#3a2a12;color:#fcd34d}
.pill.normal{background:#10261a;color:#86efac} .pill.cooldown{background:#12233a;color:#93c5fd}

/* Footer */
.foot{padding:24px 16px 40px;color:var(--muted);font-size:12px}
.foot p{margin:4px 0}

/* ===== Mobile ===== */
@media(max-width:640px){
  .hero{grid-template-columns:1fr}
  .disp{font-size:54px}

  /* Recent records → card layout so 구간(zone) is always visible, no horizontal scroll */
  .table-box{overflow:visible}
  #histTable thead{display:none}
  #histTable tbody{display:flex;flex-direction:column;gap:10px}
  #histTable tr{
    display:grid;
    grid-template-columns:1fr auto;
    grid-template-areas:"date zone" "disp zone" "kospi ma50";
    align-items:center;
    column-gap:10px;row-gap:3px;
    background:var(--card2);border:1px solid var(--line);border-radius:12px;
    padding:11px 14px;
  }
  #histTable td{border:none;padding:0;white-space:nowrap;text-align:left;font-size:13px}
  #histTable .c-date{grid-area:date;color:var(--muted);font-size:12.5px}
  #histTable .c-disp{grid-area:disp;font-size:21px;font-weight:800;letter-spacing:-.5px}
  #histTable .c-disp b{font-weight:800}
  #histTable .c-zone{grid-area:zone;justify-self:end;align-self:center}
  #histTable .c-zone .pill{font-size:13px;padding:6px 13px}
  #histTable .c-kospi{grid-area:kospi}
  #histTable .c-ma50{grid-area:ma50;justify-self:end;text-align:right}
  #histTable .c-kospi,#histTable .c-ma50{font-size:11.5px;color:var(--muted);margin-top:2px}
  #histTable .c-kospi::before{content:"코스피 ";opacity:.65}
  #histTable .c-ma50::before{content:"50일선 ";opacity:.65}

  /* 이론 해석법: 모바일 가독성 (태그 상단 정렬 + 줄간격 확보) */
  .theory{padding:16px}
  .theory p{font-size:13.5px;line-height:1.6}
  .theory-list{gap:11px}
  .theory-list li{align-items:flex-start;gap:9px;line-height:1.5;font-size:13px}
  .tag{min-width:62px;font-size:11px;padding:3px 7px;margin-top:1px}
}

@media(max-width:380px){
  .brand .sub{display:none}
  .brand h1{font-size:16.5px}
}