:root {
  --bg: #ece7dd;
  --bg-deep: #cfd9dd;
  --panel: rgba(255, 250, 242, 0.9);
  --panel-strong: rgba(255, 248, 237, 0.98);
  --border: rgba(52, 72, 80, 0.14);
  --text: #18262d;
  --muted: #5c7078;
  --accent: #0b6b75;
  --accent-strong: #154e8a;
  --up: #1b8a63;
  --down: #c24f3d;
  --shadow: 0 24px 70px rgba(27, 43, 49, 0.14);
  --font-sans: "Avenir Next", "Segoe UI", sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(255, 244, 211, 0.8), transparent 28%),
    radial-gradient(circle at bottom right, rgba(11, 107, 117, 0.16), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

.shell {
  width: min(1480px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.panel,
.status-chip,
.summary-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 18px;
}

.eyebrow,
.summary-label,
label {
  margin: 0 0 8px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
}

h1,
h2 {
  margin: 0;
  font-family: var(--font-serif);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 0.98;
  max-width: 820px;
}

h1 span {
  color: var(--accent);
}

.lede {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.status-cluster {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 12px;
  min-width: 320px;
}

.status-chip,
.summary-card,
.panel {
  padding: 16px 18px;
}

.status-chip span,
.summary-label {
  display: block;
}

.status-chip strong,
.summary-card strong {
  display: block;
  font-size: 1.05rem;
}

.toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 180px)) minmax(240px, 1fr) auto;
  gap: 14px;
  align-items: end;
  margin-bottom: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-wide {
  min-width: 0;
}

select,
button {
  font: inherit;
}

select,
input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel-strong);
  color: var(--text);
}

.primary-button {
  border: 0;
  border-radius: 14px;
  padding: 13px 18px;
  cursor: pointer;
  color: #f7fafb;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.summary-detail,
.panel-note {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(320px, 0.95fr);
  gap: 16px;
  margin-bottom: 16px;
}

.stack {
  display: grid;
  gap: 16px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.legend-item::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-right: 6px;
  vertical-align: middle;
}

.legend-item.ema9::before { background: #0f766e; }
.legend-item.ema14::before { background: #4f46e5; }
.legend-item.ema21::before { background: #b45309; }
.legend-item.revtop::before { background: #7c2d12; }
.legend-item.revbot::before { background: #1d4ed8; }
.legend-item.stop::before { background: #111827; }

.chart-help {
  margin: -2px 0 14px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.chart-shell {
  position: relative;
  min-height: 520px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(52, 72, 80, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 250, 242, 0.96), rgba(236, 243, 245, 0.88)),
    linear-gradient(90deg, rgba(11, 107, 117, 0.05), rgba(21, 78, 138, 0.05));
}

#chart-canvas {
  width: 100%;
  height: 520px;
  display: block;
  cursor: grab;
  touch-action: none;
}

.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.detail-grid {
  margin: 0;
  display: grid;
  gap: 10px;
}

.compact {
  max-height: 470px;
  overflow-y: auto;
}

.seed-form {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(52, 72, 80, 0.08);
}

.seed-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
}

.seed-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 14px;
}

.detail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(52, 72, 80, 0.08);
}

.detail-row dt {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
}

.detail-row dd {
  margin: 0;
  font-weight: 600;
}

.lower-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 0;
  border-bottom: 1px solid rgba(52, 72, 80, 0.08);
  font-size: 0.92rem;
  vertical-align: top;
}

th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
}

.table-empty {
  padding: 22px 0;
  text-align: center;
  color: var(--muted);
}

.modal-shell[hidden] {
  display: none;
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(24, 38, 45, 0.44);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  overflow: auto;
  border-radius: 26px;
  border: 1px solid var(--border);
  background: rgba(255, 250, 242, 0.98);
  box-shadow: 0 28px 80px rgba(24, 38, 45, 0.28);
  padding: 20px 22px 22px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.modal-close {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  cursor: pointer;
  padding: 10px 14px;
}

.modal-content {
  border-top: 1px solid rgba(52, 72, 80, 0.08);
  padding-top: 16px;
}

.modal-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 18px;
}

body.modal-open {
  overflow: hidden;
}

@media (max-width: 1120px) {
  .masthead,
  .toolbar,
  .summary-grid,
  .main-grid,
  .lower-grid {
    grid-template-columns: 1fr;
  }

  .status-cluster {
    min-width: 0;
  }
}

@media (max-width: 720px) {
  .seed-grid {
    grid-template-columns: 1fr;
  }

  .seed-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .modal-header {
    flex-direction: column;
    align-items: stretch;
  }

  .modal-close {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 20px, 100%);
    padding-top: 18px;
  }

  .panel,
  .status-chip,
  .summary-card {
    border-radius: 18px;
  }

  #chart-canvas,
  .chart-shell {
    height: 360px;
    min-height: 360px;
  }

  .detail-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}