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

:root {
  --bg: #07111f;
  --panel: rgba(11, 22, 40, 0.9);
  --panel-2: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.1);
  --text: #e7eefb;
  --muted: #97a8c4;
  --accent: #69d2ff;
  --accent-2: #7ae582;
  --accent-3: #ffd166;
  --danger: #ff7b7b;
  --shadow: 0 24px 44px rgba(0, 0, 0, 0.28);
}

body {
  font-family: "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(105, 210, 255, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.12), transparent 22%),
    linear-gradient(180deg, #0a1730 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

.hero-shell {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.hero-copy,
.hero-side-card,
section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 28px;
}

.hero-side {
  display: grid;
  gap: 14px;
}

.hero-side-card {
  padding: 18px;
  background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.03));
}

.hero-side-card span,
.eyebrow,
.bt-label,
.rec-label,
.exposure-label,
.control-group label {
  color: var(--muted);
  font-size: 0.84rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--accent);
}

h1 {
  font-size: clamp(2.4rem, 4vw, 4rem);
  line-height: 1.02;
  margin-bottom: 14px;
}

.subtitle,
.hero-copy p,
.hero-side-card p,
.ai-insight p {
  color: var(--muted);
  line-height: 1.65;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.84rem;
}

.hero-side-card strong,
.bt-value,
.rec-value {
  display: block;
  margin: 6px 0 8px;
  font-size: clamp(1.02rem, 1.5vw, 1.35rem);
  line-height: 1.3;
  overflow-wrap: anywhere;
  word-break: break-word;
}

main {
  display: grid;
  gap: 20px;
}

section {
  padding: 22px;
}

section h2 {
  font-size: 1.18rem;
  margin-bottom: 18px;
}

.workflow-section {
  display: grid;
  gap: 20px;
}

.workflow-block + .workflow-block {
  margin-top: 4px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.workflow-block h3 {
  font-size: 1rem;
  margin-bottom: 14px;
}

.workflow-note {
  color: var(--muted);
  margin-bottom: 14px;
  line-height: 1.6;
}

.control-row,
.exposure-grid,
.recommendation-grid,
.backtest-grid,
.distribution-shell {
  display: grid;
  gap: 14px;
}

.control-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-group input,
.control-group select,
.exposure-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: inherit;
}

.toggle-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
}

.toggle-card input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-2);
}

.exposure-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.exposure-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--panel-2);
}

.exposure-currency,
.rec-confidence {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.btn-optimize,
.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-optimize {
  margin-top: 16px;
  background: linear-gradient(135deg, #7ce7ff, #3b82f6);
  color: #04111f;
}

.btn {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-optimize:hover,
.btn:hover {
  transform: translateY(-1px);
}

.recommendation-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rec-card,
.bt-card,
.distribution-card {
  min-width: 0;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.rec-card {
  text-align: center;
}

.rec-asset {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}

.rec-value {
  margin-top: 6px;
  font-size: clamp(1rem, 1.7vw, 1.5rem);
}

.distribution-shell {
  grid-template-columns: 1.1fr 0.9fr;
  margin-top: 16px;
}

.distribution-card h3 {
  font-size: 1rem;
  margin-bottom: 10px;
}

.mini-bars,
.trace-list {
  display: grid;
  gap: 10px;
}

.mini-bar-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 62px;
  gap: 10px;
  align-items: center;
}

.mini-bar-row span:last-child {
  text-align: right;
  color: var(--muted);
  font-size: 0.82rem;
}

.mini-track {
  height: 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}

.mini-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #69d2ff, #7ae582);
}

.trace-item {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  line-height: 1.5;
}

.trace-item strong {
  color: var(--text);
}

.ai-insight {
  margin-top: 16px;
  padding: 16px;
  border-radius: 18px;
  border-left: 4px solid var(--accent);
  background: linear-gradient(135deg, rgba(105, 210, 255, 0.12), rgba(122, 229, 130, 0.08));
}

.ai-insight strong {
  display: block;
  margin-bottom: 8px;
  color: #b7f0ff;
}

.backtest-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bt-card {
  text-align: center;
}

.actions-section {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.actions-inline {
  justify-content: flex-start;
  margin-top: 0;
}

body::after {
  content: "KateelLearningDemos";
  position: fixed;
  bottom: 6px;
  right: 8px;
  font-size: 8px;
  color: rgba(255,255,255,0.12);
  pointer-events: none;
}

@media (max-width: 1100px) {
  .hero-shell,
  .control-row,
  .distribution-shell {
    grid-template-columns: 1fr;
  }

  .exposure-grid,
  .recommendation-grid,
  .backtest-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .container {
    padding: 18px 14px 28px;
  }

  .exposure-grid,
  .recommendation-grid,
  .backtest-grid {
    grid-template-columns: 1fr;
  }

  .actions-section {
    flex-direction: column;
  }
}