:root {
  --gekko-green: #00ff41;
  --gekko-green-dim: #00cc33;
  --gekko-green-glow: rgba(0, 255, 65, 0.15);
  --gekko-green-border: rgba(0, 255, 65, 0.25);
  --gekko-bg: #1e1e24;
  --gekko-surface: #2a2a32;
  --gekko-surface-hover: #33333d;
  --gekko-border: rgba(255, 255, 255, 0.08);
  --gekko-border-strong: rgba(255, 255, 255, 0.15);
  --foreground: #f5f5f7;
  --muted: #9ca3af;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #22c55e;
  --radius: 0.5rem;
  --font-ui: "Nunito", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font-ui);
  color: var(--foreground);
  background: var(--gekko-bg);
  line-height: 1.5;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 45% at 15% -5%, var(--gekko-green-glow), transparent 55%),
    radial-gradient(ellipse 50% 35% at 95% 10%, rgba(0, 204, 51, 0.08), transparent 50%),
    linear-gradient(180deg, #1a1a20 0%, var(--gekko-bg) 40%, #18181d 100%);
}
.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image:
    linear-gradient(rgba(0, 255, 65, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 65, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 65%);
}

.top {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.25rem 1.5rem 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-end;
  animation: rise 0.55s ease-out both;
}

.brand {
  font-family: var(--font-ui);
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0.2rem 0 0.45rem;
  color: var(--foreground);
}
.brand span { color: var(--gekko-green); }

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gekko-green-dim);
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 36ch;
  font-weight: 500;
}
.tagline strong {
  color: var(--gekko-green);
  font-weight: 700;
}

.status-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pill {
  border: 1px solid var(--gekko-border-strong);
  background: var(--gekko-surface);
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 999px;
}
.pill.ok {
  border-color: var(--gekko-green-border);
  color: var(--gekko-green);
  background: rgba(0, 255, 65, 0.06);
}
.pill.warn {
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--warning);
}
.pill.bad {
  border-color: rgba(239, 68, 68, 0.45);
  color: var(--danger);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: grid;
  gap: 2rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  animation: rise 0.6s 0.05s ease-out both;
}

.metric {
  padding: 1.1rem 1.15rem 1.2rem;
  background: var(--gekko-surface);
  border: 1px solid var(--gekko-border);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px rgba(0, 255, 65, 0.02);
}
.metric-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-weight: 700;
}
.metric-value {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  color: var(--foreground);
}

.progress-track {
  margin-top: 0.7rem;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gekko-green-dim), var(--gekko-green));
  box-shadow: 0 0 12px var(--gekko-green-glow);
  transition: width 0.6s ease;
}

h2 {
  font-family: var(--font-ui);
  font-size: 1.35rem;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
  font-weight: 800;
}
.section-copy {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 56ch;
  font-weight: 500;
}

.controls { animation: rise 0.65s 0.08s ease-out both; }
.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid var(--gekko-border-strong);
  background: var(--gekko-surface);
  color: var(--foreground);
  padding: 0.7rem 1.05rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
  background: var(--gekko-surface-hover);
  border-color: var(--gekko-green-border);
}
.btn:active { transform: translateY(0); }
.btn.primary {
  background: var(--gekko-green);
  color: #0a0a0c;
  border-color: var(--gekko-green);
  box-shadow: 0 0 20px var(--gekko-green-glow);
}
.btn.primary:hover {
  background: var(--gekko-green-dim);
  border-color: var(--gekko-green-dim);
}
.btn.danger {
  border-color: rgba(239, 68, 68, 0.5);
  color: #fca5a5;
}
.btn.danger:hover { background: rgba(239, 68, 68, 0.1); }
.btn.ghost {
  border-color: var(--gekko-border);
  color: var(--muted);
  background: transparent;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.feedback {
  min-height: 1.4em;
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  color: var(--gekko-green);
  font-weight: 600;
}

.grid-two {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
}

.panel {
  background: var(--gekko-surface);
  border: 1px solid var(--gekko-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem 1.25rem;
}

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid var(--gekko-border);
}
th {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}
td { font-family: var(--font-mono); font-size: 0.82rem; }
.empty {
  color: var(--muted);
  font-style: italic;
  font-family: var(--font-ui);
}
.side-long { color: var(--gekko-green); font-weight: 700; }
.side-short { color: #f87171; font-weight: 700; }
.pnl-pos { color: var(--gekko-green); }
.pnl-neg { color: #f87171; }

.variant-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.variant-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gekko-border);
  font-size: 0.9rem;
}
.variant-list li:last-child { border-bottom: 0; }
.variant-list .meta {
  color: var(--muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}
.variant-list span {
  font-family: var(--font-mono);
  color: var(--gekko-green);
  font-weight: 600;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.checklist li {
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--gekko-border);
  border-left: 3px solid var(--gekko-border-strong);
  background: var(--gekko-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
  font-weight: 600;
}
.checklist li.done {
  border-left-color: var(--gekko-green);
  color: var(--gekko-green);
  background: rgba(0, 255, 65, 0.05);
}
.checklist li.done::before { content: "✓ "; font-weight: 800; }

.setup-links a {
  color: var(--gekko-green);
  font-weight: 700;
  text-decoration: none;
}
.setup-links a:hover { text-decoration: underline; }

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem 2.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--gekko-border);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 860px) {
  .top { flex-direction: column; align-items: flex-start; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .grid-two { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .hero-metrics { grid-template-columns: 1fr; }
}