/* ============================================================
   laoer-bot — editorial-financial-terminal aesthetic
   Typography: Pretendard (Korean + Latin) · JetBrains Mono (data)
   · Instrument Serif (display accent)
   Palette: warm mono (paper ↔ ink) with brass accent.
   ============================================================ */

@import url("https://cdn.jsdelivr.net/npm/pretendard@1.3.9/dist/web/static/pretendard.css");
@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500;600&display=swap");

/* ---------- design tokens ---------- */

:root,
[data-theme="light"] {
  /* paper & ink */
  --bg:            #faf9f6;
  --bg-grain:      transparent;
  --surface:       #ffffff;
  --surface-2:     #f3f2ee;
  --surface-sunk:  #efeeea;
  --border:        #e4e2dc;
  --border-hair:   #ecebe5;
  --fg:            #0d0d0f;
  --fg-2:          #2b2b2f;
  --muted:         #6b6a72;
  --subtle:        #9b9aa0;

  /* brand */
  --accent:        #b5861e;  /* brass, darker for light-mode contrast */
  --accent-ink:    #8f6a13;
  --accent-soft:   rgba(181, 134, 30, 0.10);
  --accent-line:   rgba(181, 134, 30, 0.35);

  /* trading */
  --buy:           #0f7a3d;
  --buy-soft:      rgba(15, 122, 61, 0.10);
  --sell:          #b71c1c;
  --sell-soft:     rgba(183, 28, 28, 0.10);

  /* status */
  --ok:            #0f7a3d;
  --warn:          #a66708;
  --err:           #b71c1c;

  /* shadows */
  --ring:          0 0 0 3px rgba(181, 134, 30, 0.22);
  --shadow-1:      0 1px 0 rgba(0,0,0,0.02), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-2:      0 6px 24px rgba(15, 15, 20, 0.08);
  --shadow-pop:    0 20px 60px rgba(15, 15, 20, 0.12);

  --radius:        6px;
  --radius-lg:     10px;
}

[data-theme="dark"] {
  --bg:            #0b0b0d;
  /* ultra-subtle film grain from a tiled SVG */
  --bg-grain:      url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.022 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  --surface:       #141417;
  --surface-2:     #1a1a1e;
  --surface-sunk:  #0f0f12;
  --border:        #26262d;
  --border-hair:   #1b1b20;
  --fg:            #f3f2ee;
  --fg-2:          #dedcd4;
  --muted:         #8e8d95;
  --subtle:        #55545c;

  --accent:        #d4a04a;
  --accent-ink:    #e4b061;
  --accent-soft:   rgba(212, 160, 74, 0.12);
  --accent-line:   rgba(212, 160, 74, 0.32);

  --buy:           #2aa56b;
  --buy-soft:      rgba(42, 165, 107, 0.14);
  --sell:          #e86565;
  --sell-soft:     rgba(232, 101, 101, 0.12);

  --ok:            #2aa56b;
  --warn:          #d4a04a;
  --err:           #e86565;

  --ring:          0 0 0 3px rgba(212, 160, 74, 0.28);
  --shadow-1:      0 1px 0 rgba(0,0,0,0.4);
  --shadow-2:      0 10px 32px rgba(0, 0, 0, 0.55);
  --shadow-pop:    0 20px 60px rgba(0, 0, 0, 0.65);
}

/* ---------- base ---------- */

* { box-sizing: border-box; }
html { color-scheme: light dark; }
html, body { margin: 0; padding: 0; min-height: 100%; }

body {
  background: var(--bg);
  background-image: var(--bg-grain);
  color: var(--fg);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  font-feature-settings: "ss03", "cv02", "cv03", "cv04";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* numeric tabular alignment everywhere */
.num, dd, code, pre, kbd, .mono,
.stats dd, .kv dd, .fills td, .fills th,
.t-display, .output, .diagnostics, .calc-out,
.ch-progress, .slider-val, .ob-price, .avg-table,
.avg-summary, .total {
  font-feature-settings: "tnum" on, "lnum" on;
  font-variant-numeric: tabular-nums lining-nums;
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 120ms; }
a:hover { border-bottom-color: var(--accent-line); }

code, kbd {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  background: var(--surface-sunk);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-hair);
}

kbd {
  background: var(--surface);
  box-shadow: inset 0 -1px 0 var(--border);
  padding: 2px 6px;
  font-size: 11px;
}

::selection { background: var(--accent-soft); color: var(--fg); }

/* ---------- scrollbars (subtle) ---------- */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--subtle); }

/* ---------- header / layout ---------- */

.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 14px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(150%);
}

.brand a {
  display: inline-flex; align-items: baseline; gap: 2px;
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--fg);
  border: none;
}
.brand a::before {
  content: "※";
  font-family: "JetBrains Mono", monospace;
  font-style: normal;
  font-size: 16px;
  color: var(--accent);
  margin-right: 6px;
  transform: translateY(-1px);
  display: inline-block;
}
.brand a .slash { color: var(--muted); font-style: normal; padding: 0 2px; }

.topnav {
  display: flex; align-items: center; gap: 4px; flex: 1;
}
.topnav a {
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  border: none;
}
.topnav a:hover {
  color: var(--fg);
  background: var(--surface-2);
}
.topnav a.active {
  color: var(--fg);
  background: var(--surface-2);
}
.topnav button.linkish {
  background: transparent; border: none;
  color: var(--muted);
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 5px;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}
.topnav button.linkish:hover { color: var(--fg); background: var(--surface-2); }

.topright { display: flex; align-items: center; gap: 10px; }

/* theme toggle */
#theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  width: 32px; height: 32px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 120ms, border-color 120ms, background 120ms;
}
#theme-toggle:hover { color: var(--fg); border-color: var(--subtle); background: var(--surface-2); }
#theme-toggle svg { width: 15px; height: 15px; }

main { max-width: 1200px; margin: 32px auto 56px; padding: 0 28px; }

footer {
  padding: 24px 28px 48px;
  border-top: 1px solid var(--border-hair);
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--subtle);
  font-family: "JetBrains Mono", monospace;
}

/* ---------- page head ---------- */

.page-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 28px; flex-wrap: wrap; gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-hair);
}
.page-head h1 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: 34px;
  letter-spacing: -0.015em;
  line-height: 1.1;
}
.page-head .muted { font-size: 12px; }

/* ---------- card ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-1);
}
.card h1, .card h2, .card h3 { margin-top: 0; letter-spacing: -0.005em; }
.card h2 { font-size: 17px; font-weight: 600; }
.card h3 { font-size: 14px; font-weight: 600; }
.card.empty { text-align: center; padding: 56px 24px; color: var(--muted); }
.card.small { padding: 16px 18px; }
.card header.between {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border-hair);
}
.card header.between h2 { margin: 0; }

.grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  margin-bottom: 20px;
}

.two-pane {
  display: grid; grid-template-columns: 1fr 320px; gap: 20px; margin-bottom: 20px;
}
@media (max-width: 920px) { .two-pane { grid-template-columns: 1fr; } }

.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0;
}
@media (max-width: 540px) { .two-col { grid-template-columns: 1fr; } }

/* ---------- pill / chip ---------- */

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--surface);
}
.pill::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  opacity: 0.75;
}
.pill.live  { color: var(--err); border-color: color-mix(in srgb, var(--err) 40%, var(--border)); }
.pill.paper { color: var(--accent); border-color: var(--accent-line); }
.pill.on    { color: var(--buy); border-color: color-mix(in srgb, var(--buy) 40%, var(--border)); }
.pill.off   { color: var(--muted); }
.pill.off::before { box-shadow: none; opacity: 0.4; }

/* ---------- tone utilities ---------- */

.muted  { color: var(--muted); }
.subtle { color: var(--subtle); }
.ok     { color: var(--ok); }
.err    { color: var(--err); }
.warn   { color: var(--warn); }
.buy    { color: var(--buy); }
.sell   { color: var(--sell); }

/* ---------- small-caps label ---------- */

.label, dt, .fills th, .stats dt, .kv dt, th {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- progress bar (hand-tooled, not generic) ---------- */

.progress { min-width: 160px; }
.progress .bar {
  position: relative;
  height: 4px;
  background: var(--surface-sunk);
  border: 1px solid var(--border-hair);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress .bar span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-ink) 100%);
  transition: width 0.4s cubic-bezier(.2,.7,.2,1);
}
.progress.big .bar { height: 6px; margin-bottom: 10px; }
.progress-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--muted);
  font-family: "JetBrains Mono", monospace;
}

/* ---------- stats (big key-value grid) ---------- */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px 20px; margin: 12px 0 16px; padding: 0; }
.stats div { display: flex; flex-direction: column; gap: 2px; }
.stats dt { }
.stats dd {
  margin: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
}
.stats.big { gap: 18px 28px; padding: 6px 0; }
.stats.big dd { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; }

.kv { display: flex; flex-direction: column; gap: 8px; margin: 0; }
.kv > div { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px dashed var(--border-hair); }
.kv > div:last-child { border-bottom: none; }
.kv dd { margin: 0; font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--fg); }
.kv dd.editable { cursor: pointer; padding: 1px 6px; border-radius: 3px; transition: background 120ms; }
.kv dd.editable:hover { background: var(--accent-soft); color: var(--accent-ink); }

/* ---------- buttons ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

button, .button {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface);
  color: var(--fg-2);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: var(--radius);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  font-family: inherit;
  transition: all 120ms ease;
  text-decoration: none;
  line-height: 1.2;
}
button:hover, .button:hover {
  background: var(--surface-2);
  border-color: var(--subtle);
  color: var(--fg);
  text-decoration: none;
}
button:active, .button:active { transform: translateY(1px); }
button:focus-visible, .button:focus-visible { outline: none; box-shadow: var(--ring); }

button.primary, .button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
[data-theme="dark"] button.primary,
[data-theme="dark"] .button.primary { color: #14100a; }
button.primary:hover, .button.primary:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: #fff;
}
[data-theme="dark"] button.primary:hover,
[data-theme="dark"] .button.primary:hover { color: #14100a; }

button.danger {
  background: transparent;
  border-color: transparent;
  color: var(--err);
}
button.danger:hover { background: var(--sell-soft); border-color: transparent; color: var(--err); }

button.small { padding: 3px 8px; font-size: 11px; }

button.linkish {
  background: transparent; border: none; color: var(--muted);
  padding: 2px 6px; font-size: 12px; text-decoration: underline;
  text-underline-offset: 3px;
}
button.linkish:hover { color: var(--fg); background: transparent; }

button:disabled, .button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---------- forms ---------- */

label { display: flex; flex-direction: column; gap: 5px; font-size: 11px; color: var(--muted); font-family: "JetBrains Mono", monospace; letter-spacing: 0.04em; text-transform: uppercase; }

input, select, textarea {
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 11px;
  border-radius: var(--radius);
  font-family: "Pretendard", inherit;
  font-size: 13px;
  transition: border-color 120ms, box-shadow 120ms;
}
input[type="number"], input[type="date"] {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--ring);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  height: 4px;
  background: var(--surface-sunk);
  border-radius: 999px;
  border: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--surface);
  cursor: pointer;
}

/* ---------- tables (fills, etc.) ---------- */

.fills {
  width: 100%;
  border-collapse: collapse;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
}
.fills th, .fills td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-hair);
}
.fills th {
  padding-top: 6px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.fills tr:hover td { background: var(--surface-2); }
.fills .buy  { color: var(--buy); }
.fills .sell { color: var(--sell); }
.fills pre.inline { margin: 0; font-size: 11px; }

.src-api     { color: var(--accent); font-size: 10px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; }
.src-manual  { color: var(--warn); font-size: 10px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; }
.src-override { color: var(--err);  font-size: 10px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; }

.kind-plan    { color: var(--accent); font-weight: 500; }
.kind-submit  { color: var(--accent-ink); font-weight: 500; }
.kind-fill    { color: var(--buy); font-weight: 500; }
.kind-mode, .kind-reverse { color: var(--warn); font-weight: 500; }
.kind-error   { color: var(--err); font-weight: 500; }
.kind-summary { color: var(--muted); }

/* ---------- position card ---------- */

.position-card { padding: 20px 22px; transition: border-color 120ms; }
.position-card:hover { border-color: var(--subtle); }
.position-card header {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 14px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border-hair); margin-bottom: 14px;
}
.position-card header > div:first-child {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
}
.position-card h2 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: 26px;
  letter-spacing: -0.01em;
  line-height: 1;
}
.position-card .progress { flex: 1; max-width: 200px; }

.mode {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--surface-2);
  border: 1px solid var(--border-hair);
}
.mode.normal  { color: var(--accent); border-color: var(--accent-line); }
.mode.reverse { color: var(--warn);  border-color: color-mix(in srgb, var(--warn) 40%, var(--border)); }

/* ---------- guide columns (buy/sell legs) ---------- */

.guide-col {
  background: var(--surface-sunk);
  border: 1px solid var(--border-hair);
  padding: 14px 16px;
  border-radius: var(--radius);
  min-height: 88px;
}
.guide-col h4 {
  margin: 0 0 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.guide-col.buy-col h4::before { content: "▴"; color: var(--buy); margin-right: 6px; }
.guide-col.sell-col h4::before { content: "▾"; color: var(--sell); margin-right: 6px; }
.guide-col.buy-col h4  { color: var(--buy); }
.guide-col.sell-col h4 { color: var(--sell); }

.guide-col .leg {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  padding: 4px 0;
  display: flex; justify-content: space-between; gap: 12px;
  color: var(--fg);
  border-bottom: 1px dotted var(--border-hair);
}
.guide-col .leg:last-child { border-bottom: none; }
.guide-col .leg .tag { color: var(--subtle); font-size: 10.5px; letter-spacing: 0.03em; }

.guide-col .leg-group {
  margin-top: 10px; padding-top: 10px;
  border-top: 1px dashed var(--border);
}
.guide-col .leg-group-head {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warn);
  margin-bottom: 6px;
}

/* ---------- output / code block ---------- */

.output {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--surface-sunk);
  border: 1px solid var(--border-hair);
  font-family: "JetBrains Mono", monospace;
  font-size: 11.5px;
  color: var(--fg-2);
  white-space: pre-wrap;
  max-height: 280px;
  overflow: auto;
}
.output:empty { display: none; }

.card-meta { font-size: 11px; margin-top: 10px; color: var(--muted); }
.diagnostics { font-family: "JetBrains Mono", monospace; font-size: 11px; margin: 10px 0; color: var(--muted); }

/* ---------- settings page / env form ---------- */

.env-form { display: flex; flex-direction: column; gap: 16px; }
.env-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 10px;
  background: var(--surface);
}
.env-group legend {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0 6px;
}
.env-row {
  display: grid; grid-template-columns: 220px 1fr;
  align-items: center; gap: 16px;
}
.env-row label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--fg-2);
}
.env-row input { width: 100%; }
.secret-field { display: flex; gap: 8px; align-items: center; }
.secret-field input { flex: 1; }
.new-row {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: grid; grid-template-columns: 220px 1fr;
  gap: 16px;
}
.new-row legend {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 6px;
}

/* ---------- login ---------- */

.centered { display: flex; justify-content: center; align-items: center; min-height: 72vh; }
.login-card {
  width: 360px;
  padding: 32px 28px;
}
.login-card h1 {
  margin: 0 0 20px;
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.login-card form { display: flex; flex-direction: column; gap: 14px; }

/* ---------- new portfolio wizard ---------- */

.form-card { max-width: 680px; margin: 0 auto; padding: 28px; }
.form-card fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 14px 0;
}
.form-card legend {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 6px;
}
.form-card .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-card .row:has(> label:only-child) { grid-template-columns: 1fr; }
.toggle-group { display: flex; gap: 18px; flex-wrap: wrap; }
.toggle-group label { flex-direction: row; align-items: center; gap: 6px; text-transform: none; letter-spacing: 0; font-family: inherit; font-size: 13px; color: var(--fg); }
.summary {
  padding: 12px 14px;
  background: var(--surface-sunk);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--fg-2);
}
.form-disclaimer {
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 18px 0;
  color: var(--accent-ink);
  font-size: 12px;
  line-height: 1.6;
}

/* ---------- tabs ---------- */

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tabs button {
  background: transparent; border: none; border-bottom: 2px solid transparent;
  color: var(--muted); padding: 10px 16px; font-size: 13px; font-weight: 500;
  border-radius: 0;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 11px;
}
.tabs button:hover { color: var(--fg); background: transparent; }
.tabs button.active { color: var(--fg); border-bottom-color: var(--accent); }
.tabpanel.hidden { display: none; }

/* ---------- modal ---------- */

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(3px);
  display: flex; justify-content: center; align-items: center;
  z-index: 100;
  padding: 20px;
  animation: fadeIn 0.18s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 540px; width: 100%;
  max-height: 92vh; overflow: auto;
  box-shadow: var(--shadow-pop);
  animation: modalIn 0.22s cubic-bezier(.2,.8,.2,1);
}
.modal.wide { max-width: 720px; }
.modal h2 {
  margin-top: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.modal .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 12px 0; }
.modal .actions { margin-top: 18px; justify-content: flex-end; }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

/* ---------- submit modal legs ---------- */

.submit-legs {
  margin: 18px 0; display: flex; flex-direction: column; gap: 6px;
  font-family: "JetBrains Mono", monospace; font-size: 12.5px;
}
.submit-leg {
  display: grid;
  grid-template-columns: 22px 60px 50px 1fr 120px;
  gap: 12px; align-items: center;
  padding: 8px 12px;
  background: var(--surface-sunk);
  border: 1px solid var(--border-hair);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 120ms;
}
.submit-leg:hover { border-color: var(--accent-line); }
.submit-leg .tag { color: var(--subtle); font-size: 11px; }
.submit-leg.disabled { opacity: 0.35; }
.submit-summary {
  margin: 12px 0;
  font-size: 12px;
  font-family: "JetBrains Mono", monospace;
  color: var(--muted);
  padding: 10px 12px;
  background: var(--accent-soft);
  border-radius: var(--radius);
}

.hidden { display: none; }

/* ---------- reports ---------- */

.report-card header {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px;
  border-bottom: 1px solid var(--border-hair); padding-bottom: 12px; margin-bottom: 14px;
}
.report-card h2 { margin: 0; font-family: "Instrument Serif", serif; font-weight: 400; font-size: 24px; letter-spacing: -0.01em; }

/* ---------- learn page ---------- */

.learn-root {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  min-height: calc(100vh - 180px);
}
@media (max-width: 940px) { .learn-root { grid-template-columns: 1fr; } }

.learn-sidebar {
  position: sticky; top: 24px; align-self: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.learn-sidebar h2 {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
}
.learn-sidebar ol { list-style: none; margin: 0; padding: 0; }
.chapter-item { margin-bottom: 6px; }
.chapter-btn {
  width: 100%;
  display: grid; grid-template-columns: 24px 1fr auto; gap: 10px; align-items: center;
  text-align: left;
  background: transparent; border: 1px solid transparent;
  padding: 8px 10px; border-radius: var(--radius);
  color: var(--fg-2); font-family: inherit; font-size: 12.5px;
}
.chapter-btn:hover, .chapter-btn.active {
  background: var(--surface-2);
  border-color: var(--border);
}
.chapter-btn.active { border-color: var(--accent-line); color: var(--fg); }
.ch-icon { font-size: 16px; }
.ch-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.ch-title { font-size: 13px; font-weight: 500; }
.ch-blurb {
  font-size: 10.5px;
  line-height: 1.45;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ch-progress {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px; color: var(--muted);
  padding: 2px 6px; border-radius: 3px;
  background: var(--surface-sunk); border: 1px solid var(--border-hair);
}
.ch-progress.done { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }

.slide-sublist {
  list-style: none;
  margin: 6px 0 4px 28px; padding: 4px 0 4px 10px;
  border-left: 1px solid var(--border-hair);
}
.slide-sub button {
  background: transparent; border: none;
  padding: 4px 6px;
  color: var(--muted); font-size: 11.5px;
  text-align: left; width: 100%; cursor: pointer;
  border-radius: 3px; font-family: inherit;
}
.slide-sub button:hover { color: var(--fg); background: var(--surface-2); }
.slide-sub.done button { color: var(--ok); }
.slide-sub button.active { color: var(--accent); font-weight: 500; }

.learn-progress { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border-hair); }
.learn-progress .bar { height: 4px; background: var(--surface-sunk); border-radius: 999px; overflow: hidden; margin-bottom: 8px; border: 1px solid var(--border-hair); }
.learn-progress .bar span { display: block; height: 100%; background: var(--accent); transition: width 0.3s; }
.learn-progress small { font-family: "JetBrains Mono", monospace; font-size: 10px; }

.learn-main { min-width: 0; }
.learn-head { margin-bottom: 24px; }
.learn-head nav { font-family: "JetBrains Mono", monospace; font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); }
.learn-head h1 {
  margin: 6px 0 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: 34px;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.learn-slide-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  min-height: 440px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--fg-2);
}
.learn-slide-body p { margin: 0 0 16px; }
.learn-slide-body h2 { font-family: "Instrument Serif", serif; font-weight: 400; font-style: italic; font-size: 26px; letter-spacing: -0.01em; margin: 0 0 14px; color: var(--fg); }
.learn-slide-body h3 { margin: 22px 0 10px; font-size: 15px; font-weight: 600; color: var(--fg); }
.learn-slide-body h4 { margin: 16px 0 6px; font-size: 13px; font-weight: 600; color: var(--fg); }
.learn-slide-body strong { color: var(--fg); font-weight: 600; }
.learn-slide-body ul, .learn-slide-body ol { margin: 0 0 14px; padding-left: 22px; }
.learn-slide-body li { margin-bottom: 6px; }
.learn-slide-body code { font-size: 0.85em; }
.learn-slide-body kbd { font-size: 11px; }

.learn-nav {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px; padding: 14px 18px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.slide-dots { display: flex; gap: 5px; }
.slide-dots .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--surface-2); border: 1px solid var(--border);
  display: inline-block;
  transition: all 120ms;
}
.slide-dots .dot.done { background: var(--accent); border-color: var(--accent); opacity: 0.5; }
.slide-dots .dot.active { background: var(--accent); border-color: var(--accent); transform: scale(1.35); opacity: 1; }

/* ---------- learn widgets ---------- */

.slide-intro { padding: 6px 0; }
.big-bullets { font-size: 15px; line-height: 2.0; }

.diagram-box {
  background: var(--surface-sunk);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px; margin: 18px 0; text-align: center;
}
.mini-co { display: inline-flex; flex-direction: column; gap: 8px; }
.co-total { font-size: 13px; color: var(--muted); font-family: "JetBrains Mono", monospace; letter-spacing: 0.04em; }
.co-you { font-family: "JetBrains Mono", monospace; color: var(--accent); font-size: 14px; }

.calc-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px; margin: 16px 0; padding: 16px;
  background: var(--surface-sunk);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.calc-out {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 14px 16px; border-radius: var(--radius);
  font-family: "JetBrains Mono", monospace; font-size: 13px; line-height: 1.8;
  margin: 12px 0;
}
.calc-out .total { font-size: 15px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border-hair); }
.calc-out strong { color: var(--accent); font-weight: 500; }

.slider-row { display: grid; grid-template-columns: 120px 1fr 60px; gap: 10px; align-items: center; padding: 6px 0; }
.slider-val { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--accent); text-align: right; }

.line-chart { display: block; margin: 14px auto; max-width: 100%; }
.line-chart .axis-label { font-size: 10px; fill: var(--muted); font-family: "JetBrains Mono", monospace; }

/* order book demo */
.orderbook-demo { padding: 14px; background: var(--surface-sunk); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.ob-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.ob-col { background: var(--surface); padding: 14px; border-radius: var(--radius); text-align: center; border: 1px solid var(--border-hair); }
.ob-title { font-family: "JetBrains Mono", monospace; font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 6px; font-weight: 600; }
.ob-title.buy  { color: var(--buy); }
.ob-title.sell { color: var(--sell); }
.ob-price { font-family: "JetBrains Mono", monospace; font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.ob-col.sell .ob-price { color: var(--sell); }
.ob-col.bid  .ob-price { color: var(--buy); }
.ob-status {
  padding: 10px 12px; border-radius: var(--radius); text-align: center;
  font-family: "JetBrains Mono", monospace; font-size: 12px; font-weight: 500;
  margin-bottom: 12px; border: 1px solid transparent;
}
.ob-status.ok { background: var(--buy-soft); color: var(--buy); border-color: color-mix(in srgb, var(--buy) 25%, var(--border)); }
.ob-status.warn { color: var(--muted); border-color: var(--border-hair); }
.ob-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* avg demo */
.avg-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.avg-table { width: 100%; border-collapse: collapse; font-family: "JetBrains Mono", monospace; font-size: 12px; margin-bottom: 12px; }
.avg-table th, .avg-table td { padding: 7px 10px; border-bottom: 1px solid var(--border-hair); text-align: left; }
.avg-summary { background: var(--surface-sunk); padding: 12px 14px; border-radius: var(--radius); border: 1px solid var(--border-hair); font-family: "JetBrains Mono", monospace; font-size: 13px; line-height: 1.8; }
.avg-summary .total { font-size: 15px; margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--border); }

/* etf basket */
.etf-basket { display: inline-flex; flex-wrap: wrap; gap: 6px; padding: 14px; background: var(--surface-sunk); border-radius: var(--radius); border: 1px solid var(--border-hair); }
.etf-basket .ticker { background: var(--surface); padding: 5px 10px; border-radius: 3px; font-family: "JetBrains Mono", monospace; font-size: 11.5px; border: 1px solid var(--border-hair); letter-spacing: 0.04em; }
.etf-arrow { font-size: 24px; color: var(--muted); margin: 14px 0; }
.etf-wrapper { background: var(--accent); color: #fff; padding: 8px 14px; border-radius: var(--radius); font-family: "JetBrains Mono", monospace; display: inline-block; font-size: 12px; letter-spacing: 0.04em; }
[data-theme="dark"] .etf-wrapper { color: #14100a; }

/* t-tracker */
.t-tracker { background: var(--surface-sunk); padding: 18px; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.t-display { font-family: "Instrument Serif", serif; font-style: italic; font-size: 28px; margin-bottom: 14px; text-align: center; color: var(--fg); }
.t-display strong { color: var(--accent); font-family: "JetBrains Mono", monospace; font-style: normal; }
.t-buttons { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.t-buttons button { font-size: 11.5px; padding: 6px 10px; font-family: "JetBrains Mono", monospace; letter-spacing: 0.02em; }
.t-buttons button.sell { color: var(--sell); border-color: color-mix(in srgb, var(--sell) 30%, var(--border)); }

/* star diagram */
.star-diagram { display: flex; flex-direction: column; gap: 6px; padding: 12px; }
.star-line { display: grid; grid-template-columns: 30px 1fr; align-items: center; gap: 12px; padding: 8px 14px; background: var(--surface-sunk); border: 1px solid var(--border-hair); border-radius: var(--radius); font-family: "JetBrains Mono", monospace; font-size: 12px; }
.star-line .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); justify-self: center; }
.star-line.sell .dot { background: var(--sell); }
.star-line.buy  .dot { background: var(--buy); }
.star-line.star { background: var(--accent-soft); border-color: var(--accent-line); }
.star-line.star .dot { background: var(--accent); }

/* timeline */
.timeline { margin: 14px 0; }
.tl-step { display: grid; grid-template-columns: 30px 1fr; gap: 14px; align-items: center; padding: 10px 0; border-left: 1px dashed var(--border); padding-left: 18px; margin-left: 10px; }
.tl-step .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.tl-step .dot.active { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }

/* phase bar */
.phase-bar { display: flex; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); height: 80px; margin: 16px 0; position: relative; overflow: visible; }
.phase-zone { display: flex; align-items: center; justify-content: center; text-align: center; font-size: 11px; padding: 8px; border-right: 1px solid var(--border-hair); color: var(--fg); }
.phase-zone:last-child { border-right: none; }
.phase-zone.first { background: var(--accent-soft); }
.phase-zone.second { background: color-mix(in srgb, var(--warn) 10%, transparent); }
.phase-zone.exhausted { background: var(--sell-soft); flex: 0.15 !important; }
.phase-zone small { display: block; color: var(--muted); margin-top: 4px; }
.phase-marker { position: absolute; top: -22px; transform: translateX(-50%); font-size: 10px; z-index: 2; font-family: "JetBrains Mono", monospace; }
.phase-marker span { background: var(--accent); color: #fff; padding: 2px 7px; border-radius: 3px; }
[data-theme="dark"] .phase-marker span { color: #14100a; }
.phase-marker::after { content: ""; display: block; width: 0; height: 80px; border-left: 1.5px dashed var(--accent); margin-left: -1px; position: absolute; top: 18px; left: 50%; }

/* callout */
.callout {
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  padding: 14px 18px;
  margin: 18px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 13.5px;
  line-height: 1.65;
}
.callout.warn {
  background: color-mix(in srgb, var(--warn) 10%, transparent);
  border-left-color: var(--warn);
  color: var(--warn);
}

/* tdelta (teaching tables) */
.tdelta { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 12.5px; }
.tdelta th, .tdelta td { padding: 10px 12px; border-bottom: 1px solid var(--border-hair); text-align: left; }
.tdelta th { border-bottom: 1px solid var(--border); font-family: "JetBrains Mono", monospace; letter-spacing: 0.05em; font-weight: 500; text-transform: uppercase; font-size: 10px; color: var(--muted); }
.tdelta td.buy  { color: var(--buy); }
.tdelta td.sell { color: var(--sell); }

.formula-anim { color: var(--ok); font-weight: 500; margin-top: 6px; font-family: "JetBrains Mono", monospace; }

.learn-controls { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; background: var(--surface-sunk); padding: 14px; border-radius: var(--radius); margin: 14px 0; border: 1px solid var(--border-hair); }
.learn-controls.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.learn-controls input[type="range"] { width: 200px; }

.learn-out { background: var(--surface-sunk); padding: 14px 16px; border-radius: var(--radius); margin: 12px 0; font-family: "JetBrains Mono", monospace; font-size: 13px; line-height: 1.75; border: 1px solid var(--border-hair); }
.learn-out strong { color: var(--accent); font-weight: 500; }

/* ---------- tutorial overlay ---------- */

#tutorial-overlay { position: fixed; inset: 0; z-index: 1000; pointer-events: none; }
#tutorial-overlay .tut-shade {
  position: fixed; inset: 0;
  background: transparent;
  pointer-events: auto;
}
#tutorial-overlay .tut-spotlight {
  position: absolute; pointer-events: none;
  border-radius: var(--radius);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.38);
  border: 1.5px solid var(--accent);
  transition: top 0.2s ease, left 0.2s ease, width 0.2s ease, height 0.2s ease;
}
[data-theme="light"] #tutorial-overlay .tut-spotlight {
  box-shadow: 0 0 0 9999px rgba(10, 10, 12, 0.35);
}
#tutorial-overlay .tut-tip {
  position: fixed;
  width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  pointer-events: auto;
  box-shadow: var(--shadow-pop);
}
#tutorial-overlay .tut-tip h3 { margin: 6px 0 10px; font-family: "Instrument Serif", serif; font-weight: 400; font-size: 18px; letter-spacing: -0.005em; color: var(--fg); }
#tutorial-overlay .tut-tip p { margin: 0 0 12px; line-height: 1.6; font-size: 13px; color: var(--fg-2); }
#tutorial-overlay .tut-step { font-family: "JetBrains Mono", monospace; font-size: 10px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
#tutorial-overlay .tut-actions { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
#tutorial-overlay .tut-nav { display: flex; gap: 6px; }
#tutorial-overlay #tut-prev,
#tutorial-overlay #tut-next { min-width: 56px; font-size: 12px; }