:root {
  --bg: #0b1020;
  --panel: #121a2f;
  --panel-2: #18223d;
  --text: #eef2ff;
  --muted: #a7b0c8;
  --border: rgba(255, 255, 255, 0.08);
  --positive: #34d399;
  --negative: #f87171;
  --accent: #60a5fa;
  --accent-2: #8b5cf6;
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.28);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(139, 92, 246, 0.18), transparent 25%),
    var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.app-shell {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
}

.hero-text {
  color: var(--muted);
  max-width: 720px;
  margin-top: 10px;
  line-height: 1.5;
}

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

.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.form-panel,
.table-panel,
.dashboard-grid,
.insights-grid,
.summary-grid {
  margin-top: 18px;
}

.panel-header h2,
.panel h2 {
  margin: 0;
  font-size: 1.1rem;
}

.panel-header p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.holding-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

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

.field label {
  color: var(--muted);
  font-size: 0.92rem;
}

.field input {
  width: 100%;
  padding: 14px 15px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-start;
}

.primary-button,
.secondary-button,
.small-button {
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.primary-button:hover,
.secondary-button:hover,
.small-button:hover {
  transform: translateY(-1px);
}

.primary-button {
  padding: 13px 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 600;
}

.secondary-button {
  padding: 13px 18px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-weight: 600;
}

.small-button {
  padding: 9px 12px;
  background: rgba(248, 113, 113, 0.15);
  color: #fecaca;
}

.status {
  min-height: 24px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.status.success {
  color: var(--positive);
}

.status.error {
  color: var(--negative);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  min-height: 102px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric .label {
  color: var(--muted);
  font-size: 0.9rem;
}

.metric .value {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 10px;
  line-height: 1.2;
}

.positive {
  color: var(--positive);
}

.negative {
  color: var(--negative);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 18px;
}

.chart-wrap {
  position: relative;
  min-height: 320px;
  margin-top: 14px;
}

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

.position-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.position-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.position-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.position-main strong {
  font-size: 1rem;
}

.position-sub {
  color: var(--muted);
  font-size: 0.9rem;
}

.position-value {
  font-weight: 700;
  text-align: right;
}

.empty-state {
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  margin-top: 14px;
  border-radius: 16px;
}

table {
  width: 100%;
  min-width: 1100px;
  border-collapse: collapse;
  background: rgba(255,255,255,0.02);
}

thead th {
  text-align: left;
  padding: 14px 12px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

tbody td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

@media (max-width: 1100px) {
  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .dashboard-grid,
  .insights-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .app-shell {
    padding: 14px;
  }

  .hero {
    flex-direction: column;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions button {
    flex: 1;
  }

  .summary-grid {
    grid-template-columns: 1fr 1fr;
  }

  .holding-form {
    grid-template-columns: 1fr;
  }

  .metric .value {
    font-size: 1.1rem;
  }

  .chart-wrap {
    min-height: 260px;
  }

  .position-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .position-value {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
}