:root {
  --bg: #f7f2e8;
  --ink: #1f1a15;
  --muted: #6b625b;
  --accent: #007c6a;
  --accent-dark: #005e4f;
  --warm: #f0b47a;
  --cool: #4b9ae8;
  --card: #fffaf3;
  --border: #e3d7c7;
  --shadow: 0 24px 60px rgba(21, 18, 16, 0.12);
  --radius: 22px;
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-display);
  color: var(--ink);
  background: radial-gradient(circle at top left, #ffe7c4, #f7f2e8 45%, #e9f0ff 100%);
  min-height: 100vh;
}

.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.09'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
  padding: 64px 8vw 32px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.05;
  margin: 12px 0 16px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}

.subhead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 520px;
}

.hero-panel {
  background: linear-gradient(140deg, #fffdf9, #f0efe8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}

.stat {
  background: #fffaf0;
  border-radius: 16px;
  padding: 16px;
  border: 1px solid #efe2cf;
}

.stat .label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.7rem;
  color: var(--muted);
}

.stat .value {
  display: block;
  font-size: 1.7rem;
  margin-top: 8px;
}

.stat .hint {
  font-size: 0.85rem;
  color: var(--muted);
}

.layout {
  display: grid;
  gap: 28px;
  padding: 0 8vw 64px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.card-header h2 {
  margin: 0 0 8px;
}

.card-header p {
  margin: 0 0 24px;
  color: var(--muted);
}

.steps {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.step {
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 0.85rem;
}

.step.is-active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.step-panel {
  display: none;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.step-panel.is-active {
  display: grid;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
}

.field input,
.field select {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 1rem;
  background: #fff;
}

.field small {
  color: var(--muted);
}

.checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
}

.segmented {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.segmented button {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
}

.segmented button.is-active {
  background: var(--cool);
  border-color: var(--cool);
  color: #fff;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.actions.split {
  justify-content: space-between;
}

button.primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 22px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1rem;
}

button.primary:hover {
  background: var(--accent-dark);
}

button.ghost {
  background: transparent;
  border: 1px solid var(--border);
  padding: 12px 18px;
  border-radius: 12px;
  cursor: pointer;
}

.suggestions {
  position: relative;
}

.suggestions ul {
  position: absolute;
  z-index: 4;
  list-style: none;
  padding: 8px;
  margin: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-height: 180px;
  overflow: auto;
  box-shadow: var(--shadow);
}

.suggestions li {
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
}

.suggestions li:hover {
  background: #f1efe9;
}

.results-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-bottom: 24px;
}

.result-card {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--border);
}

.result-card .big {
  font-size: 1.6rem;
  margin: 8px 0 4px;
}

.result-card .muted {
  color: var(--muted);
  margin: 0;
}

.delta {
  font-weight: 600;
  margin-top: 8px;
}

.delta.positive {
  color: #0a7a4b;
}

.delta.negative {
  color: #b7472b;
}

.percentile-bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: #e4dbcf;
  margin-top: 16px;
}

.percentile-fill {
  height: 100%;
  background: linear-gradient(120deg, var(--cool), var(--accent));
  border-radius: 999px;
  width: 0;
  transition: width 0.6s ease;
}

#percentile-label {
  display: inline-block;
  margin-top: 10px;
  font-weight: 600;
}

.distribution {
  margin-top: 20px;
}

.range {
  position: relative;
  height: 14px;
  background: #e6ddcf;
  border-radius: 999px;
  margin: 18px 0;
}

.range .tick {
  position: absolute;
  top: -12px;
  height: 38px;
  width: 2px;
  background: #9c8e7f;
}

.range .tick::after {
  content: attr(data-label);
  position: absolute;
  top: -18px;
  left: -10px;
  font-size: 0.7rem;
  color: var(--muted);
}

.range .user {
  position: absolute;
  top: 18px;
  transform: translateX(-50%);
  font-size: 0.75rem;
  background: #fff;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.insights {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.footer {
  padding: 24px 8vw 40px;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .actions.split {
    flex-direction: column;
  }
}