/* Trading Zone styles. Dark by default (like a charting terminal), light on request. */
:root{
  color-scheme:dark;
  --bg:#131722; --panel:#1E222D; --panel2:#2A2E39; --border:#2F3441;
  --text:#D1D4DC; --strong:#F3F5FA; --muted:#A3A7B5;
  --accent:#2962FF; --accent-ink:#FFFFFF; --accent-text:#8AA8FF;
  --up:#4DCBB9; --down:#FF8C89; --gold:#F2B01E; --gold-soft:rgba(242,176,30,.14);
  --candle-up:#26A69A; --candle-down:#EF5350;
  --chart-bg:#131722; --chart-text:#B2B5BE; --chart-grid:#222633;
  --focus:#F2B01E;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 8px 24px rgba(0,0,0,.25);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","Trebuchet MS",Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
}
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#F0F3FA; --panel:#FFFFFF; --panel2:#F0F3FA; --border:#DADDE6;
  --text:#2A2E39; --strong:#131722; --muted:#5D606B;
  --accent:#2962FF; --accent-ink:#FFFFFF; --accent-text:#1F4FE0;
  --up:#05695A; --down:#B71C1C; --gold:#B7791F; --gold-soft:rgba(242,176,30,.2);
  --chart-bg:#FFFFFF; --chart-text:#131722; --chart-grid:#EEF0F6;
  --focus:#2962FF;
  --shadow:0 1px 2px rgba(19,23,34,.06),0 8px 24px rgba(19,23,34,.06);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.5;font-variant-numeric:tabular-nums}
h1,h2,h3{color:var(--strong);margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
a{color:var(--accent-text)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:4px}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:8px;top:-60px;background:var(--accent);color:var(--accent-ink);padding:10px 16px;border-radius:6px;z-index:100;text-decoration:none;font-weight:600}
.skip:focus{top:8px}
.up{color:var(--up)} .down{color:var(--down)} .dim{color:var(--muted)}
.wrap{max-width:1480px;margin:0 auto;padding:0 16px}

/* ---------- top bar ---------- */
.topbar{display:flex;align-items:center;gap:14px;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.12rem;color:var(--strong);text-decoration:none;white-space:nowrap;letter-spacing:-.02em}
.brand svg{flex:none}
.tb-search{flex:1;max-width:520px;min-width:0}
.combo{position:relative}
.combo input[type=text]{width:100%;height:40px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:0 12px 0 38px;color:var(--strong);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238E92A0' stroke-width='2.4' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='M20 20l-3.5-3.5'/></svg>");background-repeat:no-repeat;background-position:12px 50%}
.combo input[type=text]::placeholder{color:var(--muted)}
.sugg{list-style:none;margin:6px 0 0;padding:4px;position:absolute;left:0;right:0;z-index:50;background:var(--panel);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);max-height:340px;overflow:auto}
.sugg li{padding:9px 10px;border-radius:7px;cursor:pointer;display:flex;justify-content:space-between;gap:12px;align-items:baseline;min-height:40px}
.sugg li[aria-selected=true]{background:var(--panel2)}
.sugg .nm{font-weight:600;color:var(--strong)}
.sugg .sy{color:var(--muted);font-size:.84rem;white-space:nowrap}
.sugg li.none{cursor:default;color:var(--muted);display:block}
.spacer{flex:1}
.iconbtn{width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:transparent;cursor:pointer;display:grid;place-items:center;color:var(--text)}
.iconbtn:hover{background:var(--panel2)}
.iconbtn svg{width:18px;height:18px}
.iconbtn .moon{display:none}
:root[data-theme="light"] .iconbtn .sun{display:none}
:root[data-theme="light"] .iconbtn .moon{display:block}

.subbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--border)}
.calcnav{display:flex;gap:2px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.calcnav a{display:block;padding:11px 12px;color:var(--text);text-decoration:none;font-weight:500;white-space:nowrap;border-bottom:3px solid transparent}
.calcnav a:hover{color:var(--strong)}
.calcnav a[aria-current=page]{color:var(--strong);border-bottom-color:var(--accent)}
.controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:6px 0}
.seg{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.seg button{border:0;background:transparent;padding:0 12px;min-height:34px;cursor:pointer;font-weight:500}
.seg button+button{border-left:1px solid var(--border)}
.seg button:hover:not(:disabled){background:var(--panel2)}
.seg button[aria-pressed=true]{background:var(--accent);color:var(--accent-ink)}
.seg button:disabled{opacity:.45;cursor:not-allowed}
select,input[type=text],input[type=number],textarea{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:0 10px;min-height:38px;color:var(--strong);width:100%}
textarea{padding:8px 10px;min-height:96px;resize:vertical;line-height:1.4}
.controls select{width:auto;min-height:34px}
.btn{border:1px solid var(--border);background:var(--panel2);border-radius:8px;padding:0 14px;min-height:38px;cursor:pointer;font-weight:500;color:var(--strong)}
.btn:hover:not(:disabled){filter:brightness(1.12)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.small{min-height:32px;padding:0 11px;font-size:.88rem}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.toggle[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}

/* ---------- symbol bar ---------- */
main{display:block;padding-bottom:40px;outline:none}
.symbolbar{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;padding:18px 0 6px}
.symbolbar h1{font-size:1.45rem}
.sb-sub{color:var(--muted);margin-top:2px}
.sb-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.price{display:flex;align-items:baseline;gap:10px}
#pxNow{font-size:1.7rem;font-weight:700;color:var(--strong)}
.chg{font-weight:600}
.pill{border:1px solid var(--border);border-radius:999px;padding:2px 12px;font-size:.84rem;color:var(--muted)}
.pill.on{color:var(--up);border-color:var(--up)}
.updated{color:var(--muted);font-size:.84rem}
.statusline{color:var(--muted);font-size:.84rem;min-height:1.2em}
.errorbox{margin:8px 0;padding:10px 14px;border-radius:8px;border:1px solid var(--down);color:var(--strong);background:rgba(239,83,80,.12)}

/* ---------- chart + settings ---------- */
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:14px;margin-top:8px;align-items:start}
.chartcard,.panel,.tablecard,.learn{background:var(--panel);border:1px solid var(--border);border-radius:12px}
.chartcard{padding:10px 10px 6px;position:relative;min-width:0}
.charttools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:2px 2px 8px}
.charttools .skiplink{margin-left:auto;font-size:.85rem}
.chartwrap{position:relative}
.chart{height:clamp(340px,54vh,560px);width:100%}
.chartfail{padding:24px;color:var(--muted)}
.legend{position:absolute;left:10px;top:8px;z-index:3;display:flex;gap:6px 14px;flex-wrap:wrap;font-size:.8rem;pointer-events:none;max-width:calc(100% - 90px);color:var(--chart-text)}
.legend b{font-weight:600}
.legend i{display:inline-block;width:10px;height:3px;border-radius:2px;margin-right:5px;vertical-align:middle}
.lg-date{font-weight:600}
.panel{padding:16px}
.panel h2{font-size:1.05rem;margin-bottom:8px}
.field{margin:14px 0 0;border:0;padding:0;min-width:0}
.field>label,.field>legend{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--strong);padding:0}
.hint{color:var(--muted);font-size:.82rem;margin-top:5px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips label{position:relative;cursor:pointer}
.chips input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.chips span{display:inline-flex;align-items:center;min-height:34px;border:1px solid var(--border);border-radius:999px;padding:0 12px;background:var(--bg);font-size:.88rem}
.chips input:checked+span{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.chips input:focus-visible+span{outline:2px solid var(--focus);outline-offset:2px}
.check{display:flex;gap:8px;align-items:flex-start;margin-top:16px;cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--accent)}
.fieldmsg,.manualmsg{color:var(--down);font-size:.86rem;margin-top:10px;min-height:1.2em}
.manualmsg{color:var(--muted)}
.manualbox{margin-top:18px;border-top:1px solid var(--border);padding-top:12px}
.manualbox summary{cursor:pointer;font-weight:600;color:var(--strong)}
.manualbox .row{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}

/* ---------- results ---------- */
.results{margin-top:14px}
.results>h2{font-size:1.15rem;margin:8px 0}
.tablecard{margin-top:12px;padding:12px 12px 8px}
.tablebar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.tablebar h3{font-size:1rem}
.tools{display:flex;gap:8px;align-items:center}
.inl{display:inline-flex;gap:6px;align-items:center;font-size:.86rem;color:var(--muted)}
.inl select{width:auto;min-height:32px}
.tablenote{color:var(--muted);font-size:.86rem;margin:0 0 8px}
.tablewrap{overflow:auto;border:1px solid var(--border);border-radius:8px;max-width:100%}
.tablewrap.tall{max-height:380px}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{padding:8px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle;white-space:nowrap}
thead th{position:sticky;top:0;background:var(--panel2);color:var(--strong);font-weight:600;z-index:1;font-size:.84rem}
tbody th[scope=row],tfoot th{font-weight:500;color:var(--strong)}
tbody tr:last-child>*{border-bottom:0}
tbody tr:hover{background:rgba(127,127,127,.08)}
th.num,td.num{text-align:right}
tfoot th,tfoot td{background:var(--panel2);border-top:1px solid var(--border)}
tr.near>*{background:var(--gold-soft)}
tr.conf>*{background:var(--gold-soft)}
tr.cmprow>*{background:var(--accent);font-weight:600}
tr.cmprow,tr.cmprow *{color:var(--accent-ink)!important}
td .dim,th .dim{font-weight:400}
.calc{color:var(--muted);font-size:.84rem}
.sw{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:middle}
.badge{display:inline-block;background:var(--gold);color:#2b1d00;border-radius:999px;padding:0 9px;font-size:.76rem;font-weight:700;margin-left:6px}
.tag{display:inline-block;border:1px solid var(--border);border-radius:6px;padding:0 8px;font-size:.82rem;margin:1px 0}
.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 2px 4px;font-size:.86rem;color:var(--muted)}
.tabs{margin-top:16px}
[role=tablist]{display:flex;gap:4px;border-bottom:1px solid var(--border);overflow-x:auto}
[role=tab]{background:transparent;border:0;border-bottom:3px solid transparent;padding:10px 14px;min-height:44px;cursor:pointer;font-weight:600;color:var(--muted);white-space:nowrap}
[role=tab][aria-selected=true]{color:var(--strong);border-bottom-color:var(--accent)}
[role=tabpanel]{padding-top:4px}
.stepctl{display:flex;gap:10px;align-items:center;margin:10px 0 4px}
.stepctl select{width:auto}
.stepnote{margin:6px 0 10px;max-width:80ch}
.empty-msg{padding:22px 4px;color:var(--muted)}
.glance{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:12px 0 0;border:1px solid var(--border);border-radius:12px;background:var(--panel)}
.glance>div{padding:12px 16px;border-left:1px solid var(--border)}
.glance>div:first-child{border-left:0}
.glance dt{color:var(--muted);font-size:.84rem}
.glance dd{margin:2px 0 0;font-weight:700;font-size:1.25rem;color:var(--strong)}
.glance dd.up{color:var(--up)} .glance dd.down{color:var(--down)}
.glance dd.dim{font-size:.82rem;font-weight:400;color:var(--muted)}

/* ---------- explainer ---------- */
.learn{margin-top:18px;padding:22px 24px}
.learn h2{font-size:1.25rem;margin-bottom:8px}
.learn h3{font-size:1.02rem;margin:18px 0 6px}
.learn p,.learn li{max-width:78ch}
.learn ul{padding-left:1.2rem;margin:6px 0}
.formula{margin:10px 0;padding:12px 14px;border-left:4px solid var(--gold);background:var(--gold-soft);border-radius:0 8px 8px 0;font-weight:600;color:var(--strong);overflow-x:auto}
.learn details{border-top:1px solid var(--border);padding:10px 0}
.learn summary{cursor:pointer;font-weight:600;color:var(--strong)}
.learn details p{margin-top:8px}
footer{border-top:1px solid var(--border);color:var(--muted);font-size:.84rem;padding:22px 0 34px;background:var(--panel)}
footer .wrap>p{max-width:100ch;margin-top:6px}

/* ---------- home ---------- */
.hero{padding:44px 0 26px}
.hero h1{font-size:clamp(1.9rem,4.4vw,3rem);max-width:18em;letter-spacing:-.025em}
.hero .lede{margin-top:14px;color:var(--muted);font-size:1.08rem;max-width:44em}
.hero .combo{max-width:620px;margin-top:22px}
.hero .combo input[type=text]{height:52px;font-size:1.05rem;border-radius:12px;padding-left:44px;background-position:16px 50%}
#popular{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;max-width:760px}
#popular button{border:1px solid var(--border);background:var(--panel);border-radius:999px;min-height:34px;padding:0 14px;cursor:pointer;font-size:.9rem}
#popular button:hover{border-color:var(--accent)}
.selected{margin-top:12px;color:var(--muted)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px;margin:26px 0 8px;padding:0;list-style:none}
.tile{display:flex;flex-direction:column;gap:8px;height:100%;padding:20px;background:var(--panel);border:1px solid var(--border);border-radius:14px;text-decoration:none;color:var(--text);transition:border-color .15s,transform .15s}
.tile:hover{border-color:var(--accent);transform:translateY(-2px)}
.tile svg{width:64px;height:40px}
.tile h3{font-size:1.12rem}
.tile p{color:var(--muted);flex:1}
.tile .go{color:var(--accent-text);font-weight:600}
.section-h{font-size:1.3rem;margin:34px 0 4px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:12px 0 0;padding:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-weight:700;margin-bottom:8px}
.steps strong{display:block;color:var(--strong);margin-bottom:2px}

@media (max-width:1040px){
  .workspace{grid-template-columns:minmax(0,1fr)}
  .glance{grid-template-columns:1fr 1fr}
  .glance>div:nth-child(3){border-left:0}
  .glance>div:nth-child(n+3){border-top:1px solid var(--border)}
}
@media (max-width:640px){
  .topbar{flex-wrap:wrap;gap:8px}
  .tb-search{order:3;flex-basis:100%;max-width:none}
  .spacer{display:none}
  .brand{margin-right:auto}
  .wrap{padding:0 10px}
  .subbar{padding:0 10px}
  .symbolbar h1{font-size:1.2rem}
  #pxNow{font-size:1.4rem}
  .learn{padding:16px}
  .two{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (forced-colors:active){.seg button[aria-pressed=true],.chips input:checked+span,[role=tab][aria-selected=true]{outline:2px solid Highlight}}