/* 모든 페이지(GEX, VIX 기간 구조, 변동성 곡면)가 함께 쓰는 테마와 기본 요소 */
:root{
  --bg:#07090A;--panel:#0E1112;--panel2:#141819;--line:#22282A;--grid:#191E20;
  --text:#E8E4D8;--muted:#8C8A80;--call:#4CC38A;--put:#E5484D;--spot:#FFB224;--flip:#7CB8FF;
  --ema:#D59A6A;--sma10:#5FA8D3;
  box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:dark;
}
/* 라이트 테마 (사용 안 함, 다시 쓰려면 이 주석을 지우세요)
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#EEF2F7;--panel:#FFFFFF;--panel2:#F5F8FB;--line:#D6DFEA;--grid:#E8EEF5;
    --text:#13202F;--muted:#5B6B80;--call:#12897B;--put:#C93A50;--spot:#B57A0B;--flip:#6A55D9;
    --ema:#A4566A;--sma10:#2F6FD6;color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#EEF2F7;--panel:#FFFFFF;--panel2:#F5F8FB;--line:#D6DFEA;--grid:#E8EEF5;
  --text:#13202F;--muted:#5B6B80;--call:#12897B;--put:#C93A50;--spot:#B57A0B;--flip:#6A55D9;
  --ema:#A4566A;--sma10:#2F6FD6;color-scheme:light;
}
*/
:root[data-theme="dark"]{color-scheme:dark}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 "IBM Plex Sans",system-ui,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-variant-numeric:tabular-nums}
button,select,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--spot);outline-offset:2px}

.top{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--panel)}
.quote{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.ptitle{margin:0;font-size:17px;font-weight:600;align-self:center}
.symsel{appearance:none;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:6px 28px 6px 10px;font-weight:600;font-size:17px;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 15px) 55%,calc(100% - 10px) 55%;background-size:5px 5px;background-repeat:no-repeat}
.price{font-size:28px;font-weight:600;letter-spacing:-.01em}
.chg{font-weight:500}
.up{color:var(--call)}.down{color:var(--put)}
.regime{border-radius:999px;padding:3px 11px;font-size:13px;font-weight:500;border:1px solid currentColor}
.stats{display:flex;gap:6px 20px;flex-wrap:wrap;margin-left:auto}
.stat{display:flex;flex-direction:column;min-width:76px}
.stat span{font-size:12px;color:var(--muted)}
.stat b{font-weight:600;font-size:15px}

.controls{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;padding:10px 14px;border-bottom:1px solid var(--line)}
.group{display:flex;align-items:center;gap:6px}
.group>label{font-size:12px;color:var(--muted)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel)}
.seg button{border:0;background:none;padding:5px 10px;cursor:pointer;font-size:13px;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--panel2);color:var(--text);box-shadow:inset 0 -2px 0 var(--spot)}
.sel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:5px 8px;font-size:13px;max-width:210px}
.btn,.seg button{white-space:nowrap}
.btn{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:13px;cursor:pointer}
.btn:hover,.seg button:hover{color:var(--text)}
.btn.primary{border-color:var(--spot);color:var(--spot)}
.ph .seg button{padding:3px 9px;font-size:12.5px}
.chk{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--muted)}

.notice{margin:10px 14px 0;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--panel);font-size:13px;line-height:1.55}
.notice[hidden]{display:none}
.notice.warn{border-color:var(--spot)}
.notice a{color:var(--spot)}
.notice code{font-size:12px;background:var(--panel2);padding:1px 4px;border-radius:4px;word-break:break-all}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;min-width:0;display:flex;flex-direction:column;position:relative}
.ph{display:flex;align-items:center;gap:6px 14px;flex-wrap:nowrap;white-space:nowrap;overflow-x:auto;scrollbar-width:none;padding:0 12px;border-bottom:1px solid var(--line);height:42px}
.ph::-webkit-scrollbar{display:none}
.ph h2{margin:0;font-size:14px;font-weight:600}
.read{font-size:12px;color:var(--muted);display:flex;gap:4px 10px}
.read b{color:var(--text);font-weight:500}
.legend{display:flex;gap:10px;font-size:12px;color:var(--muted);flex-wrap:nowrap}
.legend i{display:inline-block;width:12px;height:2px;vertical-align:middle;margin-right:4px}
.legend i.dash{background:repeating-linear-gradient(90deg,var(--muted) 0 3px,transparent 3px 5px)!important}
canvas{display:block;width:100%;touch-action:none;cursor:crosshair}
.foot{padding:0 14px 18px;color:var(--muted);font-size:12.5px;max-width:900px;line-height:1.6}
.busy{opacity:.55;pointer-events:none}

/* 왼쪽 메뉴 (nav.js 가 만듦) */
.menubtn{display:inline-grid;place-items:center;width:38px;height:38px;flex:none;border-radius:8px;border:1px solid var(--line);background:var(--panel2);cursor:pointer;color:var(--text)}
.menubtn:hover{border-color:var(--muted)}
.menubtn svg{width:18px;height:18px}
.scrim{position:fixed;inset:0;z-index:40;background:rgba(5,10,18,.5);opacity:0;pointer-events:none;transition:opacity .18s}
.drawer{position:fixed;top:0;bottom:0;left:0;z-index:41;width:min(290px,84vw);display:flex;flex-direction:column;gap:2px;
  padding:calc(env(safe-area-inset-top,0px) + 12px) 10px 14px;background:var(--panel);border-right:1px solid var(--line);
  box-shadow:8px 0 24px rgba(0,0,0,.28);transform:translateX(-104%);transition:transform .2s ease;visibility:hidden}
body.nav-open .scrim{opacity:1;pointer-events:auto}
body.nav-open .drawer{transform:none;visibility:visible}
.drawer .dhead{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 12px 10px}
.drawer .dhead b{font-size:15px;font-weight:600}
.drawer .dclose{width:32px;height:32px;border:0;border-radius:8px;background:none;color:var(--muted);cursor:pointer;font-size:20px;line-height:1}
.drawer .dclose:hover{background:var(--panel2);color:var(--text)}
.drawer a{display:flex;flex-direction:column;gap:1px;padding:10px 12px;border-radius:8px;border-left:3px solid transparent;color:var(--text);text-decoration:none;font-weight:500}
.drawer a span{font-size:12px;font-weight:400;color:var(--muted)}
.drawer a:hover{background:var(--panel2)}
.drawer a[aria-current="page"]{background:var(--panel2);border-left-color:var(--spot)}
@media (prefers-reduced-motion:reduce){.drawer,.scrim{transition:none}}

/* 차트 툴팁 */
.tip{position:absolute;z-index:5;pointer-events:none;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:6px 9px;
  font-size:12px;line-height:1.55;white-space:nowrap;box-shadow:0 4px 14px rgba(0,0,0,.22)}
.tip[hidden]{display:none}
.tip .k{color:var(--muted)}
.tip b{font-weight:600}
.tip i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:0}

/* 표 */
.tblwrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{padding:6px 12px;text-align:right;border-bottom:1px solid var(--grid);white-space:nowrap}
.tbl th:first-child,.tbl td:first-child{text-align:left}
.tbl th{font-weight:500;font-size:12px;color:var(--muted)}
.tbl tr:last-child td{border-bottom:0}
details.more{margin:0 14px 14px}
details.more summary{cursor:pointer;color:var(--muted);font-size:13px;padding:6px 0}
details.more .panel{margin-top:6px}

@media (max-width:760px){
  .top{padding:10px}
  .price{font-size:22px}
  .stats{margin-left:0;gap:6px 14px}
  .controls{padding:8px 10px;gap:8px 10px}
  .ph{padding:0 8px}
  details.more{margin:0 6px 10px}
}