:root {
  --bg: #f4efe4;
  --panel: rgba(254, 251, 245, 0.8);
  --ink: #15261d;
  --muted: #506056;
  --accent: #d96c3f;
  --accent-soft: #f1bb83;
  --line: #1d4b3a;
  --grid: rgba(21, 38, 29, 0.14);
  --shadow: 0 24px 60px rgba(38, 47, 37, 0.12);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(241, 187, 131, 0.55), transparent 35%),
    linear-gradient(180deg, #f9f4ea 0%, #f0e4cf 100%);
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero,
.controls,
.dashboard,
.viz {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 2.5rem;
}

.eyebrow,
h1,
h2,
.card h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

.eyebrow {
  margin: 0 0 0.5rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: 0.8rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
  max-width: 12ch;
}

.lede {
  max-width: 60ch;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.controls {
  margin-top: 1.2rem;
  padding: 1.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.9rem;
}

.controls label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.controls input,
.controls select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(29, 75, 58, 0.18);
  background: rgba(255, 255, 255, 0.92);
  padding: 0.85rem 0.9rem;
  font: inherit;
  color: var(--ink);
}

.dashboard {
  margin-top: 1.2rem;
  padding: 1.2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.9rem;
}

.card {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
}

.card h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
}

.card strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.card p,
.notes,
.viz-header p {
  color: var(--muted);
}

.notes {
  margin: 1rem 0 0;
}

.viz {
  margin-top: 1.2rem;
  padding: 1.2rem;
}

.viz-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.viz-header h2 {
  margin: 0;
}

#chart {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 1rem;
}

.chart-bg {
  fill: rgba(255, 255, 255, 0.75);
}

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

.grid text {
  fill: var(--muted);
  font-size: 12px;
}

.area {
  fill: rgba(217, 108, 63, 0.18);
}

.line {
  fill: none;
  stroke: var(--line);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.selected-line {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 5 6;
}

.selected-dot {
  fill: var(--accent);
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 1rem, 1120px);
    padding-top: 1rem;
  }

  .hero,
  .controls,
  .dashboard,
  .viz {
    border-radius: 20px;
  }

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