:root {
  --bg: #07111f;
  --bg-2: #0b1628;
  --panel: rgba(10, 20, 37, 0.88);
  --panel-border: rgba(148, 163, 184, 0.14);
  --text: #e5eefb;
  --muted: #8ea3bd;
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --danger: #fb7185;
  --shadow: 0 28px 90px rgba(2, 8, 23, 0.45);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Space Grotesk", "Avenir Next", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(34, 197, 94, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.18), transparent 26%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.page-shell {
  width: calc(100vw - 32px);
  margin: 0 auto;
  padding: 18px 0 48px;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 4px 2px;
}

h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1;
}

.hero-link {
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.24);
  background: rgba(15, 23, 42, 0.84);
  color: var(--text);
  text-decoration: none;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.controls-panel,
.chart-panel {
  padding: 20px;
  margin-top: 18px;
}

.controls-form {
  display: grid;
  gap: 18px;
}

.controls-top {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.controls-top-portfolio {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.controls-form label,
fieldset {
  display: grid;
  gap: 8px;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.95);
}

.series-panel {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(8, 15, 27, 0.75);
}

.series-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.selected-series {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.selection-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.2);
  background: rgba(15, 23, 42, 0.88);
}

.selection-chip span {
  color: var(--muted);
}

.selection-chip strong {
  color: var(--text);
}

.series-add-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) auto;
  gap: 12px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(15, 23, 42, 0.72);
}

.holding-add-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 160px auto;
  gap: 12px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(15, 23, 42, 0.72);
}

button {
  justify-self: start;
  padding: 12px 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, #16a34a 100%);
  color: white;
  cursor: pointer;
}

.ghost-button,
.remove-button {
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.remove-button {
  color: #ffdce3;
  border-color: rgba(251, 113, 133, 0.24);
}

.chart-wrap {
  position: relative;
  min-height: 560px;
}

.warning-banner {
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(251, 191, 36, 0.28);
  background: rgba(120, 53, 15, 0.26);
  color: #fde68a;
}

.warning-banner p {
  margin: 0;
}

.warning-banner p + p {
  margin-top: 8px;
}

.holdings-panel {
  padding: 20px;
  margin-top: 18px;
}

.empty-state {
  margin-bottom: 16px;
  padding: 16px;
  border-radius: 18px;
  border: 1px dashed rgba(148, 163, 184, 0.24);
  background: rgba(15, 23, 42, 0.5);
  color: var(--muted);
}

.table-scroll {
  overflow-x: auto;
}

.holdings-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.holdings-table th,
.holdings-table td {
  padding: 14px 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  text-align: right;
}

.holdings-table th:first-child,
.holdings-table td:first-child {
  text-align: left;
}

.holdings-table thead th,
.holdings-table tfoot th {
  color: var(--text);
}

.holdings-table tbody td,
.holdings-table tfoot th,
.holdings-table tfoot td {
  color: var(--muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.stat-card {
  padding: 18px;
  background: rgba(10, 20, 37, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

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

.stat-card p {
  margin: 4px 0;
  color: var(--muted);
}

@media (max-width: 720px) {
  .page-shell {
    width: calc(100vw - 18px);
    padding-top: 14px;
  }

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

  .controls-top,
  .controls-top-portfolio,
  .series-add-row,
  .holding-add-row {
    grid-template-columns: 1fr;
  }

  .controls-panel,
  .chart-panel {
    padding: 16px;
  }

  .chart-wrap {
    min-height: 360px;
  }
}