@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --bg:          #07080f;
  --bg-elevated: #0c0e1a;
  --bg-raised:   #111526;
  --bg-inset:    #04050b;
  --fg:          #dce8ff;
  --fg-muted:    #8ba8d4;
  --fg-faint:    #4d6e9a;
  --fg-faintest: #2a3d5a;
  --border:      #3b82f633;
  --border-strong: #3b82f655;
  --border-amber:  #3b82f666;
  --amber:       #3b82f6;
  --amber-soft:  #3b82f620;
  --green:       #38bdf8;
  --green-soft:  #38bdf820;
  --gold:        #7dd3fc;
  --gold-soft:   #7dd3fc20;
  --cyan:        #60a5fa;
  --cyan-soft:   #60a5fa20;
  --magenta:     #818cf8;
  --magenta-soft:#818cf820;
  --red:         #f87171;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

/* ── Scanlines ─────────────────────────────────────────── */
.scanlines { position: relative; }
.scanlines::after {
  content: '';
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,0.06) 2px,
    rgba(0,0,0,0.06) 4px
  );
}

/* ── Typography ───────────────────────────────────────── */
.serif { font-family: 'Instrument Serif', Georgia, serif; }
.italic-serif { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; }

/* ── Utility ──────────────────────────────────────────── */
.amber   { color: var(--amber); }
.green   { color: var(--green); }
.cyan    { color: var(--cyan); }
.magenta { color: var(--magenta); }
.muted   { color: var(--fg-muted); }
.faint   { color: var(--fg-faint); }
.faintest{ color: var(--fg-faintest); }

/* ── fnkey buttons / nav links ────────────────────────── */
.fnkey {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border: 1px solid var(--border-strong);
  background: transparent;
  cursor: pointer;
  transition: all .15s;
}
.fnkey:hover { color: var(--fg); border-color: var(--fg-muted); }
.fnkey[data-active="true"] { color: var(--bg); background: var(--amber); border-color: var(--amber); }
.fnkey-prefix { color: var(--cyan); letter-spacing: .05em; font-size: 8.5px; }
.fnkey[data-active="true"] .fnkey-prefix { color: var(--bg); opacity: .7; }

/* ── Pulse dot ────────────────────────────────────────── */
@keyframes pulse-dot {
  0%,100% { opacity:1; }
  50%      { opacity:.3; }
}
.pulse-dot {
  display: inline-block;
  width: 5px; height: 5px;
  background: var(--cyan);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* ── Header ───────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border-strong);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 20px;
  gap: 20px;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #60a5fa;
  text-shadow: 0 0 6px rgba(96,165,250,.55), 0 0 14px rgba(96,165,250,.30);
  white-space: nowrap;
}
nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
#connect-btn {
  margin-left: 0;
  padding: 6px 16px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--amber);
  border: 1px solid var(--amber);
  transition: all .15s;
}
#connect-btn:hover { opacity: .85; }
#connect-btn.connected { background: transparent; color: var(--fg-muted); border-color: var(--border-strong); }

/* ── Fade animations ──────────────────────────────────── */
@keyframes fade-down { from { opacity:0; transform:translateY(-10px); } to { opacity:1; transform:translateY(0); } }
@keyframes fade-up   { from { opacity:0; transform:translateY(12px);  } to { opacity:1; transform:translateY(0); } }
.fade-down { animation: fade-down .5s ease both; }
.fade-up   { animation: fade-up   .5s ease both; }

/* ── Hero section ─────────────────────────────────────── */
#hero {
  border-bottom: 1px solid var(--border-strong);
  position: relative;
  overflow: visible;
  animation: fade-up .5s ease both;
  animation-delay: 60ms;
}
.hero-glow {
  pointer-events: none;
  position: absolute;
  top: -160px; left: -128px;
  width: 640px; height: 640px;
  background: radial-gradient(circle at center, var(--amber) 0%, transparent 60%);
  filter: blur(80px);
  opacity: .25;
}
.hero-inner {
  position: relative;
  max-width: 1480px;
  margin: 0 auto;
  padding: 40px 48px 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}
.hero-left { display: flex; flex-direction: column; gap: 24px; max-width: 920px; }
.tag-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  background: var(--cyan-soft);
}
.tag-divider { display: block; width: 32px; height: 1px; background: var(--border-strong); }
.tag-label { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--fg-faint); }
h1 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  line-height: 1.05;
  color: var(--fg);
  font-size: clamp(24px, 3vw, 44px);
  letter-spacing: -.04em;
}
.hero-desc { max-width: 62ch; font-size: 15px; line-height: 1.65; color: var(--fg-muted); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  padding: 10px 24px;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--amber);
  border: 1px solid var(--amber);
  cursor: pointer;
  transition: all .15s;
}
.btn-primary:hover { opacity: .85; }
.btn-outline {
  padding: 10px 24px;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  background: transparent;
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  display: inline-block;
}
.btn-outline:hover { color: var(--fg); border-color: var(--fg-muted); }
.btn-ghost {
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--fg-faintest);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color .15s;
}
.btn-ghost:hover { color: var(--fg-faint); }

/* ── Params sidebar ───────────────────────────────────── */
.params-box {
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  padding: 20px;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.params-title {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fg-faintest);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.param-row { display: flex; justify-content: space-between; gap: 16px; font-size: 12px; }
.param-key { color: var(--fg-faint); }
.param-val { color: var(--fg); text-align: right; }
.param-val.amber { color: var(--amber); }

/* ── Section headers ──────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.section-label {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fg-faintest);
}
.section-title {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--fg-muted);
}
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--green);
  border: 1px solid var(--green);
  background: var(--green-soft);
}

/* ── Curve section ────────────────────────────────────── */
#curve { width: 100%; }

.curve-header-bar {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--border);
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--fg-faint);
}
.curve-header-title { color: var(--fg-muted); }

.curve-stats-bar {
  display: grid; grid-template-columns: repeat(4,1fr);
  border-bottom: 1px solid var(--border);
}
.cstat {
  padding: 14px 24px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 4px;
}
.cstat:last-child { border-right: none; }
.cstat-key { font-size: 9px; letter-spacing: .18em; text-transform: uppercase; color: var(--fg-faintest); }
.cstat-val { font-size: 18px; color: var(--fg); letter-spacing: -.01em; }
.cstat-sub { font-size: 10px; color: var(--fg-faint); }

#ldf-chart-wrap {
  padding: 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.skyline-header {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 24px 6px;
  font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--fg-faintest);
}
#band-chart { padding: 0 24px 0; }
.band-bar {
  flex: 1; position: relative; cursor: default;
  transition: opacity .1s; min-width: 2px;
}
.band-bar:hover { opacity: .8; }

.curve-legend {
  display: flex; gap: 20px; flex-wrap: wrap;
  padding: 8px 24px 12px;
  font-size: 9px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg-faintest); border-bottom: 1px solid var(--border);
}
.legend-swatch {
  display: inline-block; width: 10px; height: 10px;
  margin-right: 5px; vertical-align: middle;
}

.curve-params-bar {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 10px 24px;
  font-size: 9px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--fg-faintest);
}

/* legacy kept */
.legend-dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 5px;
  vertical-align: middle;
}

/* ── Trade section ────────────────────────────────────── */
#trade {
  padding: 40px 48px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.trade-grid {
  display: grid;
  grid-template-columns: minmax(320px, 580px) 1fr;
  gap: 40px;
  align-items: start;
}

/* ── Terminal Widget ──────────────────────────────────── */
.terminal-widget {
  width: 100%;
  max-width: 580px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
}
.tw-header {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-faint);
  border-bottom: 1px solid var(--border);
}
.tw-connect-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 15px 16px;
  background: var(--amber);
  color: var(--bg);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  font-weight: 700;
}
.tw-connect-banner:hover { opacity: .88; }
.tw-connect-banner.hidden { display: none; }
.tw-connected-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--amber-soft);
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  letter-spacing: .12em;
}
.tw-connected-bar.visible { display: flex; }
.tw-disconnect-btn {
  background: none; border: none; color: var(--fg-faint);
  font-family: inherit; font-size: 9px; letter-spacing: .12em;
  text-transform: uppercase; cursor: pointer; padding: 2px 6px;
  border: 1px solid var(--border);
}
.tw-disconnect-btn:hover { color: var(--red); border-color: var(--red); }

.tw-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border-strong);
}
.tw-tab {
  padding: 13px 8px;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  background: transparent;
  color: var(--fg-faint);
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  transition: all .15s;
}
.tw-tab:last-child { border-right: none; }
.tw-tab[data-active="true"] { background: var(--amber); color: var(--bg); font-weight: 700; }
.tw-tab:hover:not([data-active="true"]) { color: var(--amber); background: var(--amber-soft); }

.tw-panel { display: flex; flex-direction: column; }

.tw-field { padding: 16px 16px 0; }
.tw-field-header {
  display: flex; justify-content: space-between;
  font-size: 10px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--fg-faint); margin-bottom: 8px;
}
.tw-bal { color: var(--fg-muted); }

.tw-input-row {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border-strong);
  background: var(--bg-inset);
}
.tw-input-row:focus-within { border-color: var(--amber); }
.tw-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--amber); font-family: inherit; font-size: 22px;
  padding: 12px 14px; min-width: 0;
}
.tw-input::placeholder { color: var(--fg-faintest); }
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; }

.tw-btn-sm {
  padding: 0 14px;
  font-family: inherit; font-size: 9px; letter-spacing: .13em;
  text-transform: uppercase; background: var(--amber); color: var(--bg);
  border: none; border-left: 1px solid var(--border-strong);
  cursor: pointer; font-weight: 700; white-space: nowrap;
}
.tw-btn-sm.outline { background: transparent; color: var(--amber); }
.tw-btn-sm:hover { opacity: .82; }

.tw-usd { padding: 6px 16px; font-size: 11px; color: var(--fg-faint); }

.tw-divider {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 16px 0;
  font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--fg-faint);
}
.tw-divider::before, .tw-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

.tw-output-field {
  margin: 12px 16px 0;
  display: flex; align-items: center; justify-content: space-between;
  border: 1px solid var(--border-strong); background: var(--bg-inset);
  padding: 14px 16px;
}
.tw-output-val { font-size: 22px; color: var(--amber); }
.tw-unit { font-size: 11px; letter-spacing: .1em; color: var(--fg-faint); }

.tw-stats {
  display: flex; margin: 14px 16px 0;
  border: 1px solid var(--border);
}
.tw-stat { flex: 1; padding: 12px 14px; }
.tw-stat-key { font-size: 9px; letter-spacing: .13em; text-transform: uppercase; color: var(--fg-faint); margin-bottom: 6px; }
.tw-stat-val { font-size: 13px; color: var(--fg); }
.tw-stat-sep { width: 1px; background: var(--border); flex-shrink: 0; }

.tw-cta-btn {
  display: block; width: calc(100% - 32px); margin: 16px;
  padding: 15px; background: var(--amber); color: var(--bg);
  font-family: inherit; font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase; border: none; cursor: pointer;
  font-weight: 700; text-align: center; text-decoration: none;
  transition: opacity .15s;
}
.tw-cta-btn:hover:not(:disabled) { opacity: .88; }
.tw-cta-btn:disabled { opacity: .4; cursor: not-allowed; }

.tw-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px;
  font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg-faint); border-top: 1px solid var(--border);
}
.tw-footer-addr { color: var(--fg-muted); text-decoration: none; font-size: 10px; }
.tw-footer-addr:hover { color: var(--amber); }

/* ── Positions panel ──────────────────────────────────── */
.positions-panel {
  width: 100%;
  max-width: 400px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
}
.positions-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.positions-body { padding: 16px; }
.no-positions { font-size: 11px; color: var(--fg-faintest); text-align: center; padding: 24px 0; }
.position-row {
  border: 1px solid var(--border);
  padding: 12px;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
}
.position-row-header { display: flex; justify-content: space-between; color: var(--fg-faint); }
.position-row-vals { display: flex; justify-content: space-between; color: var(--fg); }

/* legacy classes kept for compat */
.submit-btn {
  width: 100%; padding: 12px; font-family: inherit; font-size: 12px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--bg);
  background: var(--amber); border: none; cursor: pointer;
}
.submit-btn:disabled { opacity: .35; cursor: not-allowed; }

/* ── Footer ───────────────────────────────────────────── */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 20px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 11px;
  color: var(--fg-faintest);
}
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: var(--fg-faintest); transition: color .15s; }
.footer-links a:hover { color: var(--fg-faint); }
.footer-contract { color: var(--magenta); font-size: 11px; letter-spacing: .04em; }
.footer-contract:hover { color: var(--amber); }

/* ── Toast ────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: all;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  padding: 12px 16px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--fg-muted);
  max-width: 340px;
  animation: fade-up .25s ease both;
}
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error   { border-color: var(--red);   color: var(--red);   }
.toast.loading { border-color: var(--cyan);  color: var(--cyan);  }

/* ── Yellow paper styles ──────────────────────────────── */
.yp-container {
  max-width: 780px;
  margin: 0 auto;
  padding: 64px 48px 120px;
}
.yp-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg-faintest);
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.yp-meta-divider { width: 16px; height: 1px; background: var(--border-strong); }
.yp-section { margin-bottom: 56px; }
.yp-number {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fg-faintest);
  margin-bottom: 12px;
}
.yp-heading {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -.02em;
  color: var(--fg);
  margin-bottom: 24px;
}
.yp-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
}
.yp-body p { margin-bottom: 16px; }
.yp-body strong { color: var(--fg); font-weight: 600; }
.yp-body em { color: var(--amber); font-style: normal; }
.yp-math {
  font-size: 13px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  padding: 16px 20px;
  margin: 20px 0;
  color: var(--fg-faint);
  line-height: 1.8;
}
.yp-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px; }
.yp-table th, .yp-table td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.yp-table th { color: var(--fg-faintest); letter-spacing: .1em; text-transform: uppercase; font-size: 10px; }
.yp-table td { color: var(--fg-muted); }
.yp-table td:first-child { color: var(--amber); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding: 60px 28px 48px; gap: 32px; }
  .params-box { display: none; }
  #curve, #trade { padding: 32px 28px; }
  .curve-grid { grid-template-columns: 1fr; }
  .trade-grid  { grid-template-columns: 1fr; }
  .yp-container { padding: 40px 24px 80px; }
}
@media (max-width: 640px) {
  .header-inner { padding: 0 14px; gap: 10px; }
  nav { display: none; }
  h1 { font-size: clamp(38px, 12vw, 72px); }
  footer { padding: 16px 20px; }
}

/* ── Value flash animation ────────────────────────────── */
@keyframes value-flash {
  0%   { background: var(--amber-soft); }
  100% { background: transparent; }
}
.flash { animation: value-flash .6s ease-out; }