:root {
  --bg: #0e1117;
  --panel: #111623;
  --panel-border: #1f2430;
  --text: #e6e6e6;
  --muted: #9aa1b2;
  --subtle: #7f8699;
  --primary: #2d7cff;
  --primary-weak: #204fa8;
  --success: #3fb950;
  --grid: #161b26;
  --danger: #ff5c5c;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
}

body {
  margin: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  border-bottom: 1px solid var(--panel-border);
  background: rgba(14,17,23,0.6);
  backdrop-filter: saturate(140%) blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.2px;
}

nav a {
  margin: 0 12px;
  color: #cfd3dc;
  text-decoration: none;
  font-size: 14px;
}

nav a:hover {
  color: #ffffff;
}

main {
  padding: 32px;
  max-width: 1280px;
  margin: 0 auto;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 28px;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(21,26,36,0.8), rgba(18,22,30,0.6));
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}

.hero h1 {
  margin: 6px 0 10px 0;
  font-size: 24px;
  line-height: 1.3;
}

.eyebrow {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.lead {
  color: var(--muted);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.primary {
  padding: 12px 20px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 8px 14px rgba(45,124,255,0.25);
}

.ghost {
  padding: 12px 16px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  cursor: pointer;
}

.hero-badges {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.badge {
  border: 1px solid var(--panel-border);
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--subtle);
  font-size: 12px;
  background: rgba(17,22,35,0.6);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.kpi-card {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 14px 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.kpi-card .label {
  font-size: 12px;
  color: var(--muted);
}

.kpi-card .value {
  font-size: 20px;
  font-weight: 700;
  margin: 6px 0;
}

.kpi-card .hint {
  font-size: 11px;
  color: var(--subtle);
}

.chart-area {
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 32px;
  background: linear-gradient(180deg, rgba(21,26,36,0.65), rgba(14,17,23,0.6));
  box-shadow: var(--shadow);
}

.chart-area h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
  font-weight: 600;
}

.chart-area h4 {
  margin-top: 0;
  font-size: 14px;
  color: #cfd3dc;
}

.chart-area p {
  font-size: 13px;
  color: var(--muted);
  max-width: 720px;
  line-height: 1.6;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 8px 0 32px;
}

.info-card {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: var(--muted);
}

.info-card .label {
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 8px;
}

.info-card ul,
.info-card ol {
  margin: 0;
  padding-left: 18px;
  line-height: 1.5;
}

.legend {
  display: flex;
  gap: 24px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}

.legend .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

.dot.equity {
  background: var(--primary);
}

.dot.sodca {
  background: var(--primary);
}

.dot.dca {
  background: #8f9bbc;
}

.dot.capital {
  background: var(--subtle);
}

.dot.buyhold {
  background: var(--success);
}

.dot.zero {
  background: #7f8699;
}

.cta {
  text-align: center;
  margin: 48px 0;
}

.cta button {
  padding: 12px 28px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  color: #ffffff;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 8px 14px rgba(45,124,255,0.25);
  transition: background 0.2s ease;
}

.cta button:hover {
  background: #2b6ef0;
}

footer {
  border-top: 1px solid var(--panel-border);
  padding: 24px 32px;
  font-size: 12px;
  color: var(--subtle);
  text-align: center;
}

/* Chart specific styles */
.axis path,
.axis line {
  stroke: var(--panel-border);
}

.axis text {
  fill: var(--subtle);
  font-size: 12px;
}

.grid line {
  stroke: var(--grid);
  stroke-width: 1;
}

/* Simulation sections */
.simulation-section {
  background: #0b0e14;
  border-style: dashed;
}

.metrics-panel {
  flex: 1;
  border-left: 1px solid var(--panel-border);
  padding-left: 24px;
}

.metrics-panel h4 {
  margin-top: 0;
  font-size: 14px;
  color: #cfd3dc;
}

.metrics-list {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}

.metrics-list div strong {
  color: var(--text);
}

.chart-container {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.chart-main {
  flex: 3;
}