/* Base shell. Screen-level styles land with each screen. */
:root {
  --ink: #1a1a1a;
  --mid: #6b6b6b;
  --line: #d9d9d9;
  --surface: #ffffff;
  --ground: #f6f6f6;
  --azure: #0B5FAE;
  --danger: #9b1c1c;
  --danger-bg: #fdecec;
  --caution: #b45309;
  --caution-bg: #fff8e1;
  --halt-bg: #fff4e5;
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  font: 15px/1.45 system-ui, -apple-system, "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: var(--ground);
}

.shell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: inherit; text-decoration: none; font-weight: 600; }
.brand-crest { width: 28px; height: 32px; }
.link-button { background: none; border: 0; padding: 0; color: var(--azure); font: inherit; cursor: pointer; }

.flash { margin: 0; padding: 0.5rem 1rem; }
.flash-alert { color: var(--danger); }
.flash-notice { color: #1c6b3a; }

.shell-main { max-width: 64rem; margin: 0 auto; padding: 1rem; }
.auth, .empty-state { max-width: 28rem; }
.auth label { display: block; margin-bottom: 0.25rem; }
.auth input[type="email"] { width: 100%; padding: 0.6rem; font: inherit; border: 1px solid var(--line); border-radius: 6px; margin-bottom: 0.75rem; }
.auth input[type="submit"] { padding: 0.6rem 1rem; font: inherit; font-weight: 600; color: #fff; background: var(--azure); border: 0; border-radius: 6px; cursor: pointer; }
.empty-state { color: var(--mid); }

.button { display: inline-block; padding: 0.6rem 1rem; font-weight: 600; color: #fff; background: var(--azure); border-radius: 6px; text-decoration: none; }

/* Screens */
.shell-nav { display: flex; gap: 0.9rem; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.brand-name { white-space: nowrap; }
.nav-link { color: var(--mid); text-decoration: none; font-weight: 600; }
.nav-link.active { color: var(--ink); }
h1 { font-size: 1.25rem; margin: 0.25rem 0 0.75rem; }
h1 small { color: var(--mid); font-weight: 400; font-size: 0.9rem; }
.sec { margin: 1.25rem 0 0.4rem; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--mid); }
.banner { border: 1px solid var(--ink); border-radius: 6px; padding: 0.6rem 0.8rem; margin-bottom: 0.75rem; background: var(--surface); }
.banner.halted { background: var(--halt-bg); border-color: var(--caution); }
.banner.expired { background: var(--danger-bg); border-color: var(--danger); }
.banner.expiring { background: var(--caution-bg); border-color: var(--caution); }
.banner .button { margin-left: 0.5rem; }
.status-line { margin: 0 0 0.5rem; color: var(--mid); font-size: 0.9rem; }
.hero { display: flex; gap: 1.5rem; flex-wrap: wrap; margin: 0.5rem 0 1rem; }
.stat { display: flex; flex-direction: column; min-width: 10rem; }
.stat .num { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.lbl { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--mid); }
.sub { font-size: 0.85rem; color: var(--mid); }
.kv-list, .positions, .trades, .legs { list-style: none; padding: 0; margin: 0; }
.kv { display: flex; justify-content: space-between; gap: 1rem; padding: 0.45rem 0; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.kv b { font-variant-numeric: tabular-nums; text-align: right; }
.kv.callout { background: var(--caution-bg); padding: 0.5rem; border-radius: 6px; }
dl.kv-list { margin: 0; } .kv dt, .kv dd { margin: 0; } .kv dd { font-variant-numeric: tabular-nums; text-align: right; }
.kv.muted, .muted { color: var(--mid); }
.pos { padding: 0.55rem 0; border-bottom: 1px solid var(--line); }
.pos .top { display: flex; justify-content: space-between; font-weight: 700; }
.pos .sub { display: flex; justify-content: space-between; }
.pos .primary { font-variant-numeric: tabular-nums; }
.pos.at-risk .primary { color: var(--danger); }
.pos.delisted, .pos.delisted .primary { color: var(--mid); }
.warn { color: var(--danger); font-style: normal; }
.as-of { color: var(--mid); font-size: 0.8rem; }
.as-of.stale { color: var(--danger); }
.empty, .empty-state p { color: var(--mid); }
.filters { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 0.2rem 0.7rem; text-decoration: none; color: var(--mid); font-size: 0.85rem; }
.chip.active { border-color: var(--ink); color: var(--ink); }
.callout { background: var(--caution-bg); padding: 0.6rem; border-radius: 6px; }
.thesis { border-left: 2px solid var(--line); padding-left: 0.6rem; color: var(--mid); }
form label { display: block; margin: 0.6rem 0 0.2rem; font-size: 0.9rem; }
form input[type="text"], form textarea, form select { width: 100%; padding: 0.55rem; font: inherit; border: 1px solid var(--line); border-radius: 6px; }
form input[type="submit"] { margin-top: 0.75rem; padding: 0.6rem 1rem; font: inherit; font-weight: 600; color: #fff; background: var(--azure); border: 0; border-radius: 6px; cursor: pointer; }
form input[type="submit"].danger { background: var(--danger); }
.button.secondary, form input[type="submit"].secondary { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.choice .button, .choice form { margin: 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1rem 0; }
.choice { display: flex; gap: 1rem; margin: 0.75rem 0; flex-wrap: wrap; }
.candles { margin: 0.5rem 0 1rem; }
.candles svg { width: 100%; max-width: 640px; height: auto; display: block; font-size: 11px; }
.candles .bar line { stroke: var(--ink); stroke-width: 1; }
.candles .bar.up rect { fill: #2e8b57; } .candles .bar.down rect { fill: #c0392b; }
.candles .mark { stroke-width: 1; } .candles .mark.stop { stroke: #c0392b; stroke-dasharray: 4 3; }
.candles .mark.entry { stroke: var(--ink); stroke-dasharray: 1 3; } .candles .mark.collar { stroke: #888; stroke-dasharray: 2 4; }
.candles .mark-label, .candles .axis { fill: var(--ink); } .candles .mark-label.collar { fill: #666; } .candles .mark-label.stop { fill: #c0392b; }
.rule { margin: 1rem 0 1.5rem; padding-top: 0.5rem; border-top: 1px solid var(--line); }
.account-form .fields { display: grid; gap: 0.5rem; grid-template-columns: 1fr 1fr; margin: 0.5rem 0 1rem; }
.account-form .fields label { grid-column: span 2; margin: 0; }
.account-form input[type="submit"] { grid-column: span 2; margin: 0; }
@media (max-width: 480px) { .hero { flex-direction: column; gap: 0.75rem; } .account-form .fields { grid-template-columns: 1fr; } }
.inline-form { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.inline-form label { display: inline-flex; gap: 0.25rem; align-items: center; margin: 0; }
.inline-form input[type="text"] { width: auto; }
.inline-form input[type="submit"] { margin-top: 0; padding: 0.35rem 0.75rem; }
.classify { width: 100%; }