/* Monochrome (B/W) UI + Light/Dark mode + mobile friendly */

:root{
  color-scheme: light dark;
  --bg:#ffffff;
  --panel:#f6f6f6;
  --panel2:#ffffff;
  --border:#e2e2e2;
  --text:#111111;
  --muted:#5a5a5a;

  --accent:#111111;          /* primary button bg */
  --accent-contrast:#ffffff; /* primary button text */

  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --radius:16px;

  --flash-ok-bg:#f2f2f2;
  --flash-ok-border:#cfcfcf;
  --flash-err-bg:#f8f8f8;
  --flash-err-border:#cfcfcf;
  --flash-info-bg:#f2f2f2;
  --flash-info-border:#cfcfcf;
}

/* Auto dark if user prefers (JS can override via [data-theme]) */
@media (prefers-color-scheme: dark){
  :root{
    --bg:#000000;
    --panel:#0f0f0f;
    --panel2:#0b0b0b;
    --border:#1f1f1f;
    --text:#f5f5f5;
    --muted:#a7a7a7;

    --accent:#f5f5f5;
    --accent-contrast:#000000;

    --shadow: 0 12px 34px rgba(0,0,0,.35);

    --flash-ok-bg:#0f0f0f;
    --flash-ok-border:#2a2a2a;
    --flash-err-bg:#0f0f0f;
    --flash-err-border:#2a2a2a;
    --flash-info-bg:#0f0f0f;
    --flash-info-border:#2a2a2a;
  }
}

html[data-theme="light"]{
  --bg:#ffffff;
  --panel:#f6f6f6;
  --panel2:#ffffff;
  --border:#e2e2e2;
  --text:#111111;
  --muted:#5a5a5a;
  --accent:#111111;
  --accent-contrast:#ffffff;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --flash-ok-bg:#f2f2f2;
  --flash-ok-border:#cfcfcf;
  --flash-err-bg:#f8f8f8;
  --flash-err-border:#cfcfcf;
  --flash-info-bg:#f2f2f2;
  --flash-info-border:#cfcfcf;
}

html[data-theme="dark"]{
  --bg:#000000;
  --panel:#0f0f0f;
  --panel2:#0b0b0b;
  --border:#1f1f1f;
  --text:#f5f5f5;
  --muted:#a7a7a7;
  --accent:#f5f5f5;
  --accent-contrast:#000000;
  --shadow: 0 12px 34px rgba(0,0,0,.35);
  --flash-ok-bg:#0f0f0f;
  --flash-ok-border:#2a2a2a;
  --flash-err-bg:#0f0f0f;
  --flash-err-border:#2a2a2a;
  --flash-info-bg:#0f0f0f;
  --flash-info-border:#2a2a2a;
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}

a{color:inherit}
.link{
  color:var(--text);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}

code, .mono{
  font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
}
code{
  background:rgba(127,127,127,.12);
  border:1px solid var(--border);
  padding:2px 6px;
  border-radius:10px;
}

.wrap{
  max-width:95%;
  margin:0 auto;
  padding:16px 18px;
  padding-left: calc(18px + env(safe-area-inset-left));
  padding-right: calc(18px + env(safe-area-inset-right));
}

.topbar{
  position:sticky;
  top:0;
  z-index:10;
  backdrop-filter:saturate(120%) blur(10px);
  background:rgba(255,255,255,.72);
  border-bottom:1px solid var(--border);
}
html[data-theme="dark"] .topbar{
  background:rgba(0,0,0,.68);
}
@media (prefers-color-scheme: dark){
  .topbar{ background:rgba(0,0,0,.68); }
}

.topbarInner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}

.brand{display:flex;align-items:center;gap:12px;min-width:0}
.logo{
  width:38px;height:38px;border-radius:12px;
  border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;
  background:var(--panel2);
  box-shadow: var(--shadow);
}
.brandText{min-width:0}
.title{font-weight:900;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sub{color:var(--muted);font-size:13px;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.topActions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.userBox{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.userEmail{color:var(--muted);font-size:13px;max-width:45vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@media (max-width: 520px){
  .topbarInner{align-items:flex-start}
  .title{font-size:15px}
  .userEmail{max-width:70vw}
}

/* Sections */
.section{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  margin:14px 0;
  box-shadow: var(--shadow);
}
.sectionHead{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.section h2{margin:0;font-size:18px}
.muted{color:var(--muted)}
.small{font-size:13px}
.note{margin-top:10px}

/* Cards */
.cards{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:12px;
  margin:10px 0 14px;
}
@media (max-width: 980px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 520px){
  .cards{grid-template-columns:1fr}
}

.card{
  background:var(--panel2);
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
}
.card .metal{font-weight:800;font-size:14px}
.card .price{font-size:20px;font-weight:900;margin-top:6px}
.card .subline{color:var(--muted);font-size:12px;margin-top:6px;display:flex;gap:10px;flex-wrap:wrap}

.notice{
  margin-top:12px;
  padding:10px 12px;
  border-radius:14px;
  background:var(--panel2);
  border:1px dashed var(--border);
  color:var(--muted);
  font-size:13px;
}

/* Table */
.tableWrap{
  overflow:auto;
  border-radius:14px;
  border:1px solid var(--border);
  background:var(--panel2);
}
.tbl{
  width:100%;
  border-collapse:collapse;
  min-width:980px;
}
.tbl th,.tbl td{
  padding:10px 10px;
  border-bottom:1px solid var(--border);
  vertical-align:top;
}
.tbl thead th{
  position:sticky;
  top:0;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  z-index:1;
  font-size:12px;
  letter-spacing:.02em;
  text-transform:uppercase;
  color:var(--muted);
}
@media (prefers-color-scheme: dark){
  .tbl thead th{ background:rgba(0,0,0,.75); }
}
html[data-theme="dark"] .tbl thead th{ background:rgba(0,0,0,.75); }

.tbl tbody tr:hover td{background:rgba(127,127,127,.08)}
.tbl td.num,.tbl th.num{text-align:right;font-variant-numeric:tabular-nums}
.tbl td.actions{white-space:nowrap}
.tbl tfoot td{border-bottom:none}
.sumRow td{font-weight:900}

/* Responsive table: stack rows on small screens */
@media (max-width: 820px){
  .tbl{min-width:0}
  .tbl thead{display:none}
  .tbl tr{display:block;border-bottom:1px solid var(--border)}
  .tbl td{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:10px 12px;
    border-bottom:none;
  }
  .tbl td::before{
    content: attr(data-label);
    color:var(--muted);
    font-size:12px;
    font-weight:700;
    text-transform:uppercase;
    letter-spacing:.02em;
    padding-right:10px;
    flex: 0 0 auto;
    max-width: 48%;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .tbl td.actions{justify-content:flex-end}
  .tbl td.actions::before{content:'';display:none}
  .tbl tfoot tr{display:block}
  .sumRow td{display:flex}
}

/* Pills */
.pill{
  display:inline-block;
  padding:2px 8px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(127,127,127,.10);
  color:var(--muted);
  font-size:12px;
}

/* Inputs */
input[type="text"], input[type="date"], input[type="email"], input[type="password"], select, textarea{
  width:100%;
  padding:9px 10px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--panel2);
  color:var(--text);
  font-size:14px;
  outline:none;
}
textarea{min-height:36px;resize:vertical}
input:focus, select:focus, textarea:focus{border-color:var(--text)}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:9px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:var(--panel2);
  color:var(--text);
  font-weight:900;
  cursor:pointer;
  font-size:14px;
  user-select:none;
}
.btn:hover{filter:brightness(0.98)}
.btn:active{transform:translateY(1px)}
.btn.primary{
  background:var(--accent);
  color:var(--accent-contrast);
  border-color:rgba(127,127,127,.25);
}
.btn.danger{
  background:var(--panel2);
  border-style:dashed;
}

.actions .btn{margin-right:6px}
.actions .btn:last-child{margin-right:0}

.rowWarn{
  outline:1px dashed rgba(127,127,127,.55);
}

/* Flash messages */
.flashStack{display:flex;flex-direction:column;gap:10px;margin:12px 0}
.flash{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--flash-info-border);
  background:var(--flash-info-bg);
  color:var(--text);
  font-size:14px;
}
.flash.success{border-color:var(--flash-ok-border);background:var(--flash-ok-bg)}
.flash.error{border-color:var(--flash-err-border);background:var(--flash-err-bg)}
.flash.info{border-color:var(--flash-info-border);background:var(--flash-info-bg)}

/* Auth pages */
.authBody .section{box-shadow:none}
.authWrap{max-width:560px}
.authCard{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  margin:14px auto;
  box-shadow: var(--shadow);
}
.authTitle{margin:0 0 8px;font-size:20px;font-weight:900}
.formGrid{display:flex;flex-direction:column;gap:10px;margin-top:12px}
label{font-size:13px;color:var(--muted);font-weight:700}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width: 520px){
  .grid2{grid-template-columns:1fr}
  input,select,textarea{font-size:16px} /* avoid iOS zoom */
}
.sep{height:1px;background:var(--border);margin:10px 0;border-radius:999px}
.check{display:flex;align-items:center;gap:10px;color:var(--text);font-size:14px}
.check input{width:auto}

.authLinks{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* P/L indicators (still monochrome) */
.good{font-weight:900;}
.bad{font-weight:900;text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px;}

/* Inline controls in topbar */
.rightMeta{display:flex;flex-direction:column;align-items:flex-end;gap:2px;min-width:0}
.inlineCtl{display:flex;align-items:center;gap:8px}
.miniLabel{color:var(--muted);font-size:12px;font-weight:800;letter-spacing:.02em;text-transform:uppercase}
.miniSelect{width:auto;min-width:72px;padding:8px 10px;border-radius:12px}

.seg{display:inline-flex;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--panel2)}
.segBtn{padding:8px 10px;font-weight:900;font-size:13px;text-decoration:none;border-right:1px solid var(--border)}
.segBtn:last-child{border-right:none}
.segBtn.active{background:var(--accent);color:var(--accent-contrast)}

.portCtl{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}

/* Modal (Chart) */
.modal{position:fixed;inset:0;display:none;z-index:1000}
.modal.show{display:block}
.modalBackdrop{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.modalCard{position:relative;max-width:1000px;margin: min(8vh,60px) auto; background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); box-shadow: var(--shadow); padding:14px}
@media (max-width: 520px){
  .modalCard{margin:0; border-radius:0; min-height:100%;}
}
.modalHead{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}
.modalTitle{font-size:18px;font-weight:900}
.modalControls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
#chartCanvas{display:block;width:100%;height:auto;border:1px solid var(--border);border-radius:14px;background:var(--panel2)}