:root {
  /* "Graphite & Mint" palette — original values; see docs/BRAND.md */
  color-scheme: dark;
  --bg: #0B0C0F;            /* app background (neutral graphite-black) */
  --bg-2: #101217;          /* sidebar, top bar, inputs */
  --panel: #15171C;         /* cards and panels */
  --panel-2: #1C1F26;       /* hover, menus, modals */
  --border: #272B33;        /* borders and dividers */
  --text: #EDEFF2;
  --text-2: #B3B9C4;
  --muted: #868D99;
  --brand: #62D98B;         /* mint — primary buttons and selection (dark text on it) */
  --brand-hi: #8FE6AD;      /* light mint — highlighted text */
  --brand-ink: #07120B;     /* text on mint fills */
  --link: #36DCCB;          /* aqua — links, secondary actions, headline highlights */
  --info: #5AA9FF;          /* charts and analytics */
  --violet: #B69CFF;        /* AI-generated content */
  --up: #62D98B; --up-light: #A6EDC1;
  --down: #F2557A; --down-strong: #D63B5E;
  --warn: #F0A030; --tp: #F2D45C;
  --accent: var(--brand-hi);
  --accent-soft: rgba(98, 217, 139, .12);
  --warn-bg: rgba(240, 160, 48, .13);
  --sample: var(--warn); --sample-bg: rgba(240, 160, 48, .15);
  --ai: var(--violet); --ai-bg: rgba(182, 156, 255, .13);
  --info-bg: rgba(90, 169, 255, .13);
  --gradient: linear-gradient(135deg, #62D98B 0%, #36DCCB 50%, #5AA9FF 100%);
  --shadow: none;
  --radius: 10px; --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif; }
a { color: var(--link); text-decoration: none; } a:hover { text-decoration: underline; }
h1 { font-size: 1.45rem; margin: 0 0 .25rem; } h2 { font-size: 1.1rem; margin: 0 0 .75rem; } h3 { font-size: .98rem; margin: .5rem 0; }
.boot { padding: 3rem; text-align: center; color: var(--muted); }
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--bg-2); border-right: 1px solid var(--border); padding: 1rem .75rem; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { font-weight: 700; font-size: 1.1rem; display: flex; gap: .5rem; align-items: center; padding: .25rem .5rem 1rem; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: var(--gradient); display: grid; place-items: center; color: var(--brand-ink); font-size: .8rem; }
.nav a { display: flex; justify-content: space-between; align-items: center; padding: .5rem .65rem; border-radius: 8px; color: var(--text); margin-bottom: 2px; }
.nav a:hover { background: var(--panel-2); text-decoration: none; }
.nav a.active { background: var(--accent-soft); color: var(--brand-hi); font-weight: 600; box-shadow: inset 3px 0 0 var(--brand); }
.nav .section { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 1rem .65rem .35rem; }
.badge { display: inline-block; font-size: .72rem; padding: .05rem .45rem; border-radius: 999px; background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.badge.red { background: var(--down-strong); color: #fff; border-color: transparent; }
.badge.sample { background: var(--sample-bg); color: var(--sample); border-color: transparent; font-weight: 600; }
.badge.ok { background: rgba(41, 184, 111, .14); color: var(--up); border-color: transparent; } .badge.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.badge.ai { background: var(--ai-bg); color: var(--ai); border-color: transparent; }
.badge.verified { background: var(--info-bg); color: var(--info); border-color: transparent; }
.main { padding: 1.5rem 2rem 4rem; max-width: 1400px; width: 100%; min-width: 0; }
.topbar { display: none; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.sub { color: var(--text-2); margin: 0; font-size: .9rem; }
.grid { display: grid; gap: 1rem; } .g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } .g-side { grid-template-columns: minmax(0, 1fr) 380px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; margin-bottom: .6rem; }
.card-head h2 { margin: 0; }
.stat { font-size: 1.45rem; font-weight: 650; } .stat-label { color: var(--muted); font-size: .8rem; }
.up { color: var(--up); } .down { color: var(--down); } .muted { color: var(--muted); } .small { font-size: .82rem; } .mono { font-family: var(--mono); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; color: var(--muted); font-weight: 500; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; border-bottom: 1px solid var(--border); padding: .45rem .5rem; }
td { border-bottom: 1px solid var(--border); padding: .5rem; vertical-align: top; }
tr:last-child td { border-bottom: 0; } td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
button, .btn { font: inherit; border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: .45rem .85rem; border-radius: 8px; cursor: pointer; display: inline-flex; align-items: center; gap: .35rem; white-space: nowrap; }
button:hover, .btn:hover { background: var(--panel-2); text-decoration: none; }
button.primary, .btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); font-weight: 600; }
button.primary:hover { filter: brightness(1.07); }
button.danger { color: var(--down); } button.link { border: 0; background: none; color: var(--link); padding: 0; }
button.sm, .btn.sm { padding: .2rem .55rem; font-size: .82rem; }
button:disabled { opacity: .55; cursor: not-allowed; }
.row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; } .row.end { justify-content: flex-end; } .spread { justify-content: space-between; }
label { display: block; font-size: .84rem; color: var(--muted); margin-bottom: .25rem; }
input, select, textarea { font: inherit; width: 100%; padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-2); color: var(--text); }
input[type=checkbox], input[type=radio] { width: auto; }
textarea { min-height: 80px; resize: vertical; }
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--brand-hi); outline-offset: 1px; }
.field { margin-bottom: .75rem; } .fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .25rem .75rem; }
.help { font-size: .8rem; color: var(--muted); margin-top: .2rem; }
.notice { border-radius: 8px; padding: .65rem .85rem; font-size: .88rem; margin-bottom: 1rem; border: 1px solid var(--border); background: var(--panel-2); }
.notice.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.notice.sample { background: var(--sample-bg); color: var(--sample); border-color: transparent; font-weight: 500; }
.notice.ai { background: var(--ai-bg); color: var(--ai); border-color: transparent; }
.notice.error { background: rgba(240, 100, 122, .12); color: var(--down); border-color: transparent; }
.empty { text-align: center; color: var(--muted); padding: 1.5rem .5rem; }
.empty .btn, .empty button { margin-top: .6rem; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: .3rem 1rem; font-size: .9rem; }
.kv dt { color: var(--text-2); } .kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1rem; overflow-x: auto; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: .5rem .75rem; color: var(--muted); }
.tabs button.active { color: var(--brand-hi); border-bottom-color: var(--brand); font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: .35rem; }
.chip { border: 1px solid var(--border); border-radius: 999px; padding: .2rem .65rem; font-size: .82rem; background: var(--panel); cursor: pointer; }
.chip.on { background: var(--accent-soft); color: var(--brand-hi); border-color: var(--brand); }
.chart-box { width: 100%; height: 380px; } .chart-sub { width: 100%; height: 120px; margin-top: 4px; }
.search-wrap { position: relative; }
.search-results { position: absolute; z-index: 20; top: 100%; left: 0; right: 0; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.12); max-height: 320px; overflow-y: auto; }
.search-results button { width: 100%; border: 0; border-radius: 0; justify-content: space-between; text-align: left; white-space: normal; }
.reason { font-size: .83rem; display: flex; gap: .35rem; } .reason .ic { width: 1rem; flex: none; }
.ai-panel { display: flex; flex-direction: column; gap: .75rem; }
.msg { border-radius: 10px; padding: .7rem .85rem; font-size: .9rem; }
.msg.user { background: var(--accent-soft); color: var(--text); align-self: flex-end; max-width: 90%; }
.msg.assistant { background: var(--bg-2); border: 1px solid var(--border); }
.msg.assistant h1, .msg.assistant h2, .msg.assistant h3 { font-size: .95rem; margin: .6rem 0 .3rem; }
.msg.assistant p { margin: .35rem 0; } .msg.assistant ul { margin: .3rem 0; padding-left: 1.2rem; }
.tag-data { color: var(--info); font-weight: 600; } .tag-calc { color: var(--up); font-weight: 600; }
.tag-interp { color: var(--ai); font-weight: 600; } .tag-assume { color: var(--warn); font-weight: 600; }
.checklist label { display: flex; gap: .5rem; align-items: flex-start; color: var(--text); font-size: .9rem; margin-bottom: .4rem; }
.checklist input { margin-top: .25rem; }
#toasts { position: fixed; bottom: 3.75rem; right: 1rem; z-index: 100; display: flex; flex-direction: column; gap: .5rem; max-width: min(420px, calc(100vw - 2rem)); }
.toast { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); padding: .65rem .9rem; border-radius: 8px; font-size: .88rem; box-shadow: 0 6px 20px rgba(0,0,0,.2); }
.toast.error { background: var(--down-strong); color: #fff; border-color: transparent; }
.modal-bg { position: fixed; inset: 0; background: rgba(10,15,25,.5); z-index: 50; display: grid; place-items: center; padding: 1rem; }
.modal { background: var(--panel-2); border-radius: 12px; padding: 1.25rem; width: min(720px, 100%); max-height: 90vh; overflow-y: auto; border: 1px solid var(--border); }
.auth { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.auth .card { width: min(440px, 100%); padding: 1.75rem; }
.pre { white-space: pre-wrap; font-family: var(--mono); font-size: .78rem; background: var(--bg-2); color: var(--text-2); padding: .75rem; border-radius: 8px; max-height: 60vh; overflow: auto; }
.legend { display: flex; flex-wrap: wrap; gap: .75rem; font-size: .8rem; color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 3px; vertical-align: middle; margin-right: .3rem; border-radius: 2px; }
.steps { display: flex; gap: .4rem; flex-wrap: wrap; font-size: .82rem; color: var(--muted); }
.steps span { background: var(--panel-2); border-radius: 999px; padding: .15rem .6rem; }
.steps span.on { background: var(--accent-soft); color: var(--brand-hi); font-weight: 600; }
details summary { cursor: pointer; color: var(--link); font-size: .88rem; }
.tip { border-bottom: 1px dotted var(--muted); cursor: help; }
svg.equity { width: 100%; height: 180px; }
@media (max-width: 1100px) { .g-side { grid-template-columns: 1fr; } .g4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 40; width: 250px; transform: translateX(-100%); transition: transform .2s; box-shadow: 0 0 30px rgba(0,0,0,.25); }
  .sidebar.open { transform: none; }
  .topbar { display: flex; align-items: center; gap: .75rem; padding: .6rem 1rem; background: var(--bg-2); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30; }
  .main { padding: 1rem 1rem 4rem; }
  .g2, .g3 { grid-template-columns: 1fr; } .g4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .chart-box { height: 300px; }
}

/* Brand touches */
.auth .card { position: relative; overflow: hidden; }
.auth .card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--gradient); }
.page-head h1 { letter-spacing: -.01em; }
.card { background: var(--panel); }
h2 { color: var(--text); }
.tp { color: var(--tp); }

a.card { color: var(--text); }
a.card:hover { text-decoration: none; border-color: var(--brand); }

.brand-365 { color: var(--brand); font-weight: 800; }
.tagline { font-size: .8rem; line-height: 1.35; color: var(--text); font-weight: 500; letter-spacing: .02em; }

/* Password Show/Hide toggle */
.pw-wrap { position: relative; display: block; }
.pw-wrap input { padding-right: 2.5rem; }
.pw-eye { position: absolute; right: .3rem; top: 50%; transform: translateY(-50%); background: none; border: 0; padding: .25rem; color: var(--muted); cursor: pointer; display: inline-flex; box-shadow: none; }
.pw-eye:hover { color: var(--text); background: none; }