/* ─── theme tokens ─────────────────────────────────────────────── */
:root {
  --paper: #faf8f4;
  --surface: #ffffff;
  --surface-2: #f3f0ea;
  --line: #e6e1d8;
  --line-2: #d6cfc3;
  --ink: #1c1b18;
  --ink-2: #5d594f;
  --ink-3: #8f8a7e;
  --brand: #1f5f4a;
  --brand-ink: #ffffff;
  --brand-soft: #e4efe9;
  --series-a: #1f5f4a;
  --series-b: #b4702a;
  --good: #1f7a4d;
  --good-soft: #e3f2e9;
  --warn: #a8731c;
  --warn-soft: #f8efd9;
  --bad: #b83a3a;
  --bad-soft: #f8e3e3;
  --shadow: 0 1px 2px rgba(28,27,24,.05), 0 8px 24px -12px rgba(28,27,24,.12);
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Figtree", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "DM Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --paper:#121416; --surface:#1a1d20; --surface-2:#22262a; --line:#2b3035; --line-2:#3a4047; --ink:#eceae4; --ink-2:#aaa69c; --ink-3:#777368; --brand:#4fa784; --brand-ink:#0f1f18; --brand-soft:#1b2f27; --series-a:#4fa784; --series-b:#d9975a; --good:#4fb27f; --good-soft:#1b3328; --warn:#d4a24a; --warn-soft:#3a2f18; --bad:#e06a6a; --bad-soft:#3d2222; --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6); color-scheme: dark; } }
:root[data-theme="dark"] { --paper:#121416; --surface:#1a1d20; --surface-2:#22262a; --line:#2b3035; --line-2:#3a4047; --ink:#eceae4; --ink-2:#aaa69c; --ink-3:#777368; --brand:#4fa784; --brand-ink:#0f1f18; --brand-soft:#1b2f27; --series-a:#4fa784; --series-b:#d9975a; --good:#4fb27f; --good-soft:#1b3328; --warn:#d4a24a; --warn-soft:#3a2f18; --bad:#e06a6a; --bad-soft:#3d2222; --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.6); color-scheme: dark; }

/* ─── base ─────────────────────────────────────────────────────── */
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; margin: 0; }
.num, .mono, td.num, .bignum .v, .stat .v, .gauge-labels, .pill { font-family: var(--mono); font-variant-numeric: tabular-nums; }
button { font: inherit; cursor: pointer; }

/* ─── nav ──────────────────────────────────────────────────────── */
.nav { max-width: 1000px; margin: 0 auto; padding: 18px 20px 0; display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); font-family: var(--serif); font-weight: 600; font-size: 21px; }
.logo-mark { width: 30px; height: 30px; }
.nav-right { display: flex; align-items: center; gap: 10px; }
.pill { font-size: 12px; color: var(--ink-3); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; background: var(--surface); }
.icon-btn { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); display: grid; place-items: center; }
.icon-btn:hover { border-color: var(--line-2); color: var(--ink); }
.icon-btn svg { width: 16px; height: 16px; }

/* ─── page ─────────────────────────────────────────────────────── */
.page { max-width: 1000px; margin: 0 auto; padding: 0 20px 60px; }
.hero { text-align: center; padding: 56px 0 28px; }
.hero h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.05; }
.lede { max-width: 620px; margin: 14px auto 0; color: var(--ink-2); font-size: 17px; }
.hero.compact { padding: 28px 0 10px; } .hero.compact h1 { font-size: 26px; } .hero.compact .lede { display: none; }

/* ─── search ───────────────────────────────────────────────────── */
.search { margin-bottom: 26px; }
.search-bar { display: grid; grid-template-columns: 1fr auto 1fr auto auto; gap: 8px; align-items: end; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 10px; box-shadow: var(--shadow); }
.field { display: flex; flex-direction: column; gap: 3px; }
.field span { font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); padding-left: 10px; }
.field input, .field select { border: 0; background: transparent; color: var(--ink); font: inherit; font-size: 22px; font-family: var(--mono); font-weight: 500; padding: 4px 10px; width: 100%; outline: none; text-transform: uppercase; border-radius: 8px; }
.field select { font-family: var(--sans); font-size: 16px; text-transform: none; padding: 9px 6px 9px 10px; min-width: 110px; }
.field input:focus { background: var(--surface-2); }
.field input::placeholder { color: var(--ink-3); text-transform: none; font-weight: 400; }
.vs { color: var(--ink-3); font-family: var(--serif); font-style: italic; font-size: 18px; padding-bottom: 10px; }
.btn-primary { background: var(--brand); color: var(--brand-ink); border: 0; border-radius: 9px; padding: 0 22px; height: 46px; font-weight: 600; font-size: 16px; }
.btn-primary:hover { filter: brightness(1.08); } .btn-primary:disabled { opacity: .6; cursor: progress; }
.examples { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 12px 4px 0; color: var(--ink-3); font-size: 14px; }
.examples span:first-child { margin-right: 4px; }
.chip { background: transparent; border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px; font-size: 13px; color: var(--ink-2); }
.chip:hover { border-color: var(--brand); color: var(--brand); }
.chip b { font-family: var(--mono); font-weight: 500; }
.hint { color: var(--ink-3); font-size: 13px; margin: 8px 4px 0; }
.hint code { font-family: var(--mono); background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }

.advanced { margin-top: 10px; border: 1px solid transparent; border-radius: 12px; }
.advanced[open] { border-color: var(--line); background: var(--surface); }
.advanced summary { cursor: pointer; padding: 8px 12px; color: var(--ink-2); font-size: 14px; font-weight: 500; list-style: none; display: flex; gap: 10px; align-items: center; }
.advanced summary::before { content: "▸"; font-size: 11px; color: var(--ink-3); } .advanced[open] summary::before { content: "▾"; }
.summary-sub { color: var(--ink-3); font-weight: 400; }
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; padding: 4px 14px 16px; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
fieldset label { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--ink-2); margin-bottom: 8px; }
fieldset label em { font-style: normal; color: var(--ink-3); font-size: 12.5px; }
fieldset input[type=number], fieldset select { border: 1px solid var(--line-2); border-radius: 7px; background: var(--paper); color: var(--ink); font-family: var(--mono); font-size: 14px; padding: 5px 8px; width: 88px; }
fieldset select { font-family: var(--sans); width: auto; }
fieldset label.check { gap: 8px; } fieldset input[type=checkbox] { accent-color: var(--brand); }

/* ─── states ───────────────────────────────────────────────────── */
.loading { display: flex; align-items: center; gap: 12px; justify-content: center; color: var(--ink-2); padding: 36px 0; }
.spinner { width: 18px; height: 18px; border: 2px solid var(--line-2); border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error { background: var(--bad-soft); color: var(--bad); border-radius: 10px; padding: 14px 16px; margin-bottom: 20px; font-size: 15px; }

/* ─── cards ────────────────────────────────────────────────────── */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px 26px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card-title { font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.card-title.mt { margin-top: 22px; }
.card-title-row { display: flex; justify-content: space-between; align-items: baseline; }
.link { background: none; border: 0; color: var(--brand); font-weight: 600; font-size: 14px; padding: 0; }
.link:hover { text-decoration: underline; }
.eyebrow { font-family: var(--mono); font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
.fineprint { color: var(--ink-3); font-size: 13px; margin: 10px 0 0; }

/* verdict */
.verdict-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 18px; }
.verdict-head h2 { font-size: clamp(24px, 3.4vw, 32px); line-height: 1.15; }
.sub { color: var(--ink-2); margin: 8px 0 0; max-width: 640px; }
.score { flex: none; width: 76px; height: 76px; border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-size: 30px; font-weight: 600; border: 2px solid; }
.score.good { color: var(--good); background: var(--good-soft); } .score.warn { color: var(--warn); background: var(--warn-soft); } .score.bad { color: var(--bad); background: var(--bad-soft); }
.score small { font-family: var(--sans); font-size: 11px; font-weight: 500; display: block; text-align: center; line-height: 1; margin-top: -2px; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.checks li { display: grid; grid-template-columns: 26px 1fr; gap: 10px; background: var(--surface-2); border-radius: 12px; padding: 12px 14px; }
.checks .ic { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.ic.good { background: var(--good-soft); color: var(--good); } .ic.warn { background: var(--warn-soft); color: var(--warn); } .ic.bad { background: var(--bad-soft); color: var(--bad); }
.checks .q { font-weight: 600; font-size: 15px; }
.checks .a { color: var(--ink-2); font-size: 14px; margin-top: 2px; }
.checks .d { color: var(--ink-3); font-family: var(--mono); font-size: 12px; margin-top: 4px; }

/* gauge */
.gauge { position: relative; height: 22px; border-radius: 999px; overflow: hidden; display: flex; margin-top: 6px; }
.gauge-zone { flex: 1; } .gauge-zone.buy, .gauge-zone.sell { background: var(--brand-soft); } .gauge-zone.wait { background: var(--surface-2); flex: 2; }
.gauge-tick { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--line-2); }
.gauge-tick.entry-l { left: 25%; } .gauge-tick.entry-r { left: 75%; } .gauge-tick.zero { left: 50%; background: var(--ink-3); }
.gauge-marker { position: absolute; top: 2px; width: 18px; height: 18px; border-radius: 50%; background: var(--ink); border: 3px solid var(--surface); box-shadow: 0 0 0 1px var(--ink); transform: translateX(-50%); transition: left .4s ease; }
.gauge-labels { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-3); margin-top: 8px; }
.now-text { font-size: 17px; margin: 14px 0 0; }
.now-text b { font-family: var(--mono); font-weight: 500; }

/* backtest */
.rules-text { color: var(--ink-2); margin: -4px 0 16px; font-size: 15px; }
.rules-text b { font-family: var(--mono); font-weight: 500; color: var(--ink); }
.bignums { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.bignum .l { font-size: 13px; color: var(--ink-3); }
.bignum .v { font-size: 28px; font-weight: 500; line-height: 1.2; margin-top: 2px; }
.bignum .s { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
.bignum.good .v { color: var(--good); } .bignum.bad .v { color: var(--bad); }

.chart { width: 100%; height: 260px; }

/* chat */
.chat-setup p { color: var(--ink-2); margin: 0 0 10px; font-size: 15px; }
.chat-setup a { color: var(--brand); }
.chat-setup pre { background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-family: var(--mono); font-size: 13px; overflow: auto; margin: 0; }
.suggest { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.messages { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.msg { max-width: 85%; padding: 10px 14px; border-radius: 14px; font-size: 15px; line-height: 1.5; white-space: pre-wrap; }
.msg.user { align-self: flex-end; background: var(--brand); color: var(--brand-ink); border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--surface-2); color: var(--ink); border-bottom-left-radius: 4px; }
.msg.assistant.pending::after { content: "▍"; animation: blink 1s steps(2) infinite; color: var(--ink-3); }
@keyframes blink { to { opacity: 0; } }
.msg.error { background: var(--bad-soft); color: var(--bad); }
.chat-input { display: flex; gap: 8px; }
.chat-input input { flex: 1; border: 1px solid var(--line-2); border-radius: 10px; background: var(--paper); color: var(--ink); font: inherit; font-size: 15px; padding: 10px 14px; outline: none; }
.chat-input input:focus { border-color: var(--brand); }
.btn-primary.small { height: 42px; padding: 0 18px; font-size: 15px; }

/* details */
.details-card { padding: 0; }
.details-card summary { cursor: pointer; padding: 18px 26px; font-weight: 600; list-style: none; }
.details-card summary::before { content: "▸ "; color: var(--ink-3); font-size: 12px; } .details-card[open] summary::before { content: "▾ "; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px 20px; padding: 0 26px 18px; }
.stat { border-bottom: 1px solid var(--line); padding: 6px 0; display: flex; justify-content: space-between; font-size: 14px; }
.stat .l { color: var(--ink-2); } .stat .v { font-size: 14px; }
.table-head { display: flex; justify-content: space-between; padding: 8px 26px; color: var(--ink-2); font-size: 14px; border-top: 1px solid var(--line); }
.table-wrap { overflow: auto; max-height: 60vh; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { padding: 8px 12px; border-top: 1px solid var(--line); white-space: nowrap; text-align: left; }
th { position: sticky; top: 0; background: var(--surface-2); color: var(--ink-3); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; }
th:first-child, td:first-child { padding-left: 26px; }
th.num, td.num { text-align: right; }
td.pos { color: var(--good); } td.neg { color: var(--bad); }
.side { font-size: 11.5px; font-weight: 600; padding: 2px 7px; border-radius: 999px; }
.side.long { background: var(--good-soft); color: var(--good); } .side.short { background: var(--bad-soft); color: var(--bad); }

/* how it works */
.how { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin: 40px 0 0; }
.step { padding: 4px 6px; }
.step .n { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.step h3 { font-size: 20px; margin-bottom: 6px; }
.step p { color: var(--ink-2); margin: 0; font-size: 15px; }
.foot-domain { font-family: var(--mono); color: var(--ink-2); font-size: 12.5px; }
.foot { color: var(--ink-3); font-size: 13px; text-align: center; margin-top: 48px; max-width: 640px; margin-left: auto; margin-right: auto; }

@media (max-width: 720px) {
  .search-bar { grid-template-columns: 1fr 1fr; }
  .vs { display: none; }
  .field.tf, .btn-primary { grid-column: span 1; }
  .btn-primary { height: 44px; }
  .verdict-head { flex-direction: column-reverse; }
  .card { padding: 18px 16px; }
  .stats-grid, .details-card summary, .table-head { padding-left: 16px; padding-right: 16px; }
}