:root {
  --bg: #f6f7f2;
  --ink: #1f2a23;
  --muted: #5f6f64;
  --panel: #ffffffcc;
  --edge: #d6ddd4;
  --brand: #0f766e;
  --brand-soft: #d8f1ec;
  --warn: #b45309;
  --danger: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 0%, #eef8d6 0%, transparent 45%),
    radial-gradient(circle at 90% 20%, #d8f1ec 0%, transparent 35%),
    var(--bg);
  font-family: "Avenir Next", "Trebuchet MS", "Gill Sans", sans-serif;
}

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 18px 48px;
}

.demo-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 10px 12px;
  border: 2px solid #9a3412;
  border-radius: 12px;
  background: linear-gradient(120deg, #fff7ed, #ffedd5);
  color: #7c2d12;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 900;
  font-size: 0.82rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: 0.01em;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  color: var(--brand);
  font-weight: 700;
}

.subtitle {
  margin-top: 8px;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 18px;
  margin-top: 16px;
  backdrop-filter: blur(5px);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 14px;
  flex-wrap: wrap;
}

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

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

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

h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

input[type="date"],
input[type="text"],
input[type="file"] {
  border: 1px solid var(--edge);
  background: #fff;
  border-radius: 10px;
  padding: 9px 10px;
  color: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: linear-gradient(120deg, #0f766e, #0b5f59);
  color: #fff;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
}

.btn:hover {
  filter: brightness(1.04);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  filter: grayscale(0.25);
}

.meta {
  margin-top: 10px;
  color: var(--muted);
}

.summary-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.summary-card {
  border: 1px solid var(--edge);
  border-radius: 12px;
  background: #fff;
  padding: 10px;
}

.summary-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

.summary-value {
  margin-top: 4px;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ink);
}

.cards {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 12px;
}

.account {
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 12px;
  background: #fff;
}

.account h3 {
  margin: 0 0 8px;
}

.account-link {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.account-link:hover {
  border-bottom-color: var(--ink);
}

.total {
  display: inline-block;
  background: var(--brand-soft);
  color: var(--brand);
  padding: 4px 8px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  border-bottom: 1px solid #e8ede7;
  padding: 7px 4px;
  text-align: left;
}

.num {
  text-align: right;
}

.symbol-link {
  color: #0b5f59;
  text-decoration: none;
  font-weight: 700;
  border-bottom: 1px solid transparent;
}

.symbol-link:hover {
  border-bottom-color: #0b5f59;
}

.code {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 10px;
  padding: 10px;
  min-height: 56px;
  overflow-x: auto;
}

.chart-wrap {
  margin-top: 12px;
  border: 1px solid var(--edge);
  border-radius: 12px;
  background: #fff;
  padding: 8px;
  position: relative;
}

#history-chart {
  width: 100%;
  height: 360px;
  display: block;
}

#performance-chart {
  width: 100%;
  height: 380px;
  display: block;
}

.legend {
  display: flex;
  gap: 10px 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #3f4c44;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: #0f172a;
  color: #f8fafc;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
  line-height: 1.25;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.25);
  white-space: nowrap;
  z-index: 2;
}

.status-ok {
  color: var(--brand);
  font-weight: 700;
}

.status-warn {
  color: var(--warn);
  font-weight: 700;
}

.status-bad {
  color: var(--danger);
  font-weight: 700;
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }
}