/* Hyperbook · brand v3: midnight + frosted glass + teal→mint→violet */
:root {
  --bg: #060b1a; --bg2: #0a1226; --ink: #e9f1ff; --dim: #8795b3; --line: rgba(142, 170, 255, 0.14);
  --teal: #3fd9c4; --mint: #8ff0c8; --violet: #8b7cff; --rose: #ff5c7a; --green: #38e8a0;
  --grad: linear-gradient(120deg, var(--teal) 0%, var(--mint) 50%, var(--violet) 100%);
  --glass: rgba(14, 22, 46, 0.55); --glass2: rgba(20, 30, 60, 0.45);
  --r: 20px; --r2: 14px; --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  --mono: "JetBrains Mono", ui-monospace, monospace; --disp: "Space Grotesk", Inter, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: var(--mint); text-decoration: none; cursor: pointer; }
code { font-family: var(--mono); font-size: 0.9em; color: var(--mint); background: rgba(63, 217, 196, 0.08); padding: 1px 5px; border-radius: 5px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.dim { color: var(--dim); } .small { font-size: 12px; } .hidden { display: none !important; }
#bg { position: fixed; inset: 0; z-index: 0; }
.aurora { position: fixed; inset: -20%; z-index: 0; pointer-events: none; background:
  radial-gradient(40% 50% at 20% 20%, rgba(63, 217, 196, 0.16), transparent 60%),
  radial-gradient(35% 45% at 80% 30%, rgba(139, 124, 255, 0.18), transparent 60%),
  radial-gradient(50% 50% at 50% 100%, rgba(143, 240, 200, 0.08), transparent 60%);
  filter: blur(40px); animation: drift 24s ease-in-out infinite alternate; }
@keyframes drift { to { transform: translate3d(3%, -2%, 0) rotate(2deg); } }

/* ---------------------------------------------------------------- nav */
.nav { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 24px; padding: 14px 28px; backdrop-filter: blur(18px) saturate(140%); background: rgba(6, 11, 26, 0.55); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand img { width: 36px; height: 36px; border-radius: 10px; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 8px 24px -8px rgba(63, 217, 196, 0.6); }
.brand .word { font: 700 15px/1 var(--disp); letter-spacing: 0.22em; }
.brand .net { font: 500 11px/1 var(--mono); color: var(--dim); padding: 4px 8px; border: 1px solid var(--line); border-radius: 999px; }
.tabs { display: flex; gap: 4px; margin-left: 12px; padding: 4px; border-radius: 999px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); }
.tabs a { padding: 7px 16px; border-radius: 999px; color: var(--dim); font-weight: 500; transition: 0.2s; }
.tabs a:hover { color: var(--ink); }
.tabs a.on { color: #04131a; background: var(--grad); box-shadow: 0 6px 20px -8px rgba(63, 217, 196, 0.8); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.pill { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 999px; font: 500 12px var(--mono); border: 1px solid var(--line); background: rgba(255, 255, 255, 0.03); }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--rose); box-shadow: 0 0 10px var(--rose); }
.pill.live i { background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 1.6s infinite; }
@keyframes pulse { 50% { opacity: 0.4; } }

/* ---------------------------------------------------------------- buttons */
.btn { appearance: none; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); color: var(--ink); padding: 11px 20px; border-radius: 12px; font: 600 14px Inter, sans-serif; cursor: pointer; transition: transform 0.15s, box-shadow 0.2s, background 0.2s; }
.btn:hover { transform: translateY(-1px); background: rgba(255, 255, 255, 0.07); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn.primary { background: var(--grad); color: #04131a; border: none; box-shadow: 0 12px 30px -12px rgba(63, 217, 196, 0.9); }
.btn.primary:hover { box-shadow: 0 16px 36px -12px rgba(139, 124, 255, 0.9); }
.btn.glass { background: var(--glass2); backdrop-filter: blur(12px); }
.btn.ghost { background: transparent; }
.btn.wide { width: 100%; margin-top: 14px; padding: 14px; font-size: 15px; }
.btn.tiny { padding: 4px 10px; font-size: 11px; border-radius: 8px; }
.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 10px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); }
.seg button { border: none; background: transparent; color: var(--dim); padding: 6px 14px; border-radius: 8px; font: 600 13px Inter; cursor: pointer; }
.seg button.on { background: rgba(255, 255, 255, 0.1); color: var(--ink); }
#side-seg button.on[data-v="long"] { background: rgba(56, 232, 160, 0.18); color: var(--green); }
#side-seg button.on[data-v="short"] { background: rgba(255, 92, 122, 0.18); color: var(--rose); }

/* ---------------------------------------------------------------- layout */
main { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: 32px 28px 80px; min-height: calc(100vh - 130px); }
.view { display: none; animation: rise 0.45s ease both; }
.view.on { display: block; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }
.glass { background: var(--glass); backdrop-filter: blur(22px) saturate(140%); -webkit-backdrop-filter: blur(22px) saturate(140%); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); position: relative; }
.glass::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), transparent 40%); }
.card { padding: 22px 24px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-head h3 { margin: 0; font: 600 16px var(--disp); letter-spacing: 0.01em; }
h4 { margin: 22px 0 8px; font: 600 14px var(--disp); color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.two { display: grid; grid-template-columns: 1.05fr 1fr; gap: 20px; align-items: start; }
.side-col { display: grid; gap: 20px; }
.panel { transform-style: preserve-3d; transition: transform 0.4s ease; }
.card.feature { transition: transform 0.35s ease, box-shadow 0.35s ease; }
.card.feature:hover { transform: translateY(-6px) rotateX(2deg); box-shadow: 0 40px 90px -30px rgba(63, 217, 196, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08); }
.ico { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; background: var(--grad); color: #04131a; font-size: 18px; margin-bottom: 14px; box-shadow: 0 10px 24px -10px rgba(63, 217, 196, 0.8); }
.feature h3 { margin: 0 0 8px; font: 600 17px var(--disp); }
.feature p { margin: 0 0 14px; color: var(--dim); font-size: 14px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 13px; }
.kv span { color: var(--dim); } .kv b { font-weight: 600; text-align: right; font-family: var(--mono); }
.kv2 { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.kv2 span { color: var(--dim); } .kv2 b { font-weight: 500; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kv2.wide { flex-direction: column; gap: 2px; } .kv2.wide b { white-space: normal; word-break: break-all; }

/* ---------------------------------------------------------------- hero */
.hero { display: grid; grid-template-columns: 1fr 1.05fr; gap: 28px; align-items: stretch; }
.eyebrow { display: inline-block; font: 600 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--teal); padding: 6px 12px; border: 1px solid rgba(63, 217, 196, 0.3); border-radius: 999px; background: rgba(63, 217, 196, 0.06); }
h1 { margin: 18px 0 14px; font: 700 clamp(30px, 4vw, 46px)/1.1 var(--disp); letter-spacing: -0.02em; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--dim); font-size: 15.5px; max-width: 54ch; margin: 0 0 22px; }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 26px; }
.hero-stats div { padding: 12px 14px; border-radius: var(--r2); background: var(--glass2); border: 1px solid var(--line); backdrop-filter: blur(12px); }
.hero-stats b { display: block; font: 600 18px var(--mono); } .hero-stats span { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; }
.hero-stats.compact { margin: 0 0 18px; }
.hero-scene { min-height: 420px; overflow: hidden; perspective: 1200px; }
#depth3d { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.scene-hud { position: absolute; left: 16px; right: 16px; bottom: 14px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.hud-right { font-size: 11px; }

/* ---------------------------------------------------------------- snapshot */
.snapshot { margin-top: 20px; }
.snapshot.flash { animation: flash 0.5s ease; }
@keyframes flash { 0% { box-shadow: 0 0 0 1px rgba(63, 217, 196, 0.6), var(--shadow); } }
.snap-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; }
.ladder-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ladder .row { position: relative; display: flex; justify-content: space-between; font: 500 12px var(--mono); padding: 3px 8px; overflow: hidden; border-radius: 6px; }
.ladder .row::before { content: ""; position: absolute; inset: 0; width: var(--w); opacity: 0.18; }
.ladder .row.a::before { background: var(--rose); right: 0; left: auto; } .ladder .row.a .px { color: var(--rose); }
.ladder .row.b::before { background: var(--green); } .ladder .row.b .px { color: var(--green); }
.ladder .mid { text-align: center; font: 600 14px var(--mono); padding: 4px; color: var(--mint); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 3px 0; }
.tape .t { display: grid; grid-template-columns: 40px 1fr 1fr; font: 500 12px var(--mono); padding: 3px 6px; border-bottom: 1px dashed var(--line); }
.tape .t.B span:first-child { color: var(--green); } .tape .t.A span:first-child { color: var(--rose); }

/* ---------------------------------------------------------------- forms */
.field { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); border-radius: var(--r2); padding: 12px 14px; margin-top: 10px; }
.field-top { display: flex; justify-content: space-between; font-size: 12px; color: var(--dim); margin-bottom: 6px; }
.field-top a { margin-left: 6px; font-weight: 600; }
.field-row { display: flex; align-items: center; gap: 10px; }
input[type="number"], input[type="text"], select { flex: 1; min-width: 0; background: transparent; border: none; color: var(--ink); font: 600 22px var(--mono); outline: none; }
input[type="text"][readonly] { color: var(--mint); }
select { font-size: 15px; padding: 10px 12px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); border-radius: 10px; }
select option { background: var(--bg2); }
input[type="range"] { width: 100%; accent-color: var(--teal); }
.tok { border: 1px solid var(--line); background: rgba(255, 255, 255, 0.06); color: var(--ink); padding: 8px 14px; border-radius: 999px; font: 600 13px Inter; cursor: pointer; }
.tok.static { cursor: default; }
.flip { display: block; margin: -6px auto; width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg2); color: var(--mint); cursor: pointer; position: relative; z-index: 2; font-size: 16px; }
.quote-box { margin-top: 12px; padding: 10px 14px; border-radius: var(--r2); border: 1px dashed var(--line); display: grid; gap: 4px; }
.quote-box div { display: flex; justify-content: space-between; font-size: 13px; } .quote-box span { color: var(--dim); }
.status { margin-top: 12px; min-height: 18px; font: 500 12.5px var(--mono); color: var(--dim); word-break: break-all; }
.status.err { color: var(--rose); } .status.ok { color: var(--green); }
.fee-viz { margin: 12px 0; display: grid; gap: 8px; }
.fv-row { display: grid; grid-template-columns: 90px 1fr 70px; align-items: center; gap: 10px; font-size: 12px; color: var(--dim); }
.bar { height: 8px; border-radius: 999px; background: rgba(255, 255, 255, 0.06); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--grad); transition: width 0.4s; }
.fv-row b { text-align: right; color: var(--ink); }

/* ---------------------------------------------------------------- tables */
.table .row, .contracts .row, .positions .pos { display: grid; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.table .row { grid-template-columns: 1.2fr 1fr 1fr 1fr; }
.table .row.head { color: var(--dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }
.table.api .row { grid-template-columns: 60px 1fr 1.3fr; }
.table.api .row span:first-child { color: var(--teal); font: 600 11px var(--mono); }
.table.api .row span:nth-child(2) { font-family: var(--mono); font-size: 12px; }
.contracts .row { grid-template-columns: 170px 1fr; }
.contracts .row a { font: 500 12px var(--mono); }
.contracts .row .what { grid-column: 1 / -1; color: var(--dim); font-size: 12px; margin-top: -6px; }
.positions .pos { grid-template-columns: auto 1fr auto auto; }
.positions .side { font: 700 11px var(--mono); padding: 3px 8px; border-radius: 6px; }
.positions .side.L { background: rgba(56, 232, 160, 0.15); color: var(--green); } .positions .side.S { background: rgba(255, 92, 122, 0.15); color: var(--rose); }
.positions .pnl { font-family: var(--mono); font-weight: 600; } .up { color: var(--green); } .dn { color: var(--rose); }
.positions button { border: 1px solid var(--line); background: transparent; color: var(--ink); padding: 5px 12px; border-radius: 8px; cursor: pointer; font: 600 12px Inter; }
pre.code { margin: 10px 0 0; padding: 14px 16px; border-radius: var(--r2); background: rgba(0, 0, 0, 0.35); border: 1px solid var(--line); font: 12.5px/1.6 var(--mono); color: #c9d6f5; overflow: auto; }
pre.code span { color: var(--mint); }
footer { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 22px 28px; border-top: 1px solid var(--line); font-size: 12px; color: var(--dim); }

@media (max-width: 980px) {
  .hero, .grid3, .two, .snap-grid { grid-template-columns: 1fr; }
  .nav { flex-wrap: wrap; gap: 12px; } .tabs { order: 3; width: 100%; overflow-x: auto; margin-left: 0; } .nav-right { margin-left: auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); } .brand .net { display: none; }
}