:root {
  color-scheme: light;
  --ink: #17201b;
  --muted: #5e6a62;
  --line: #d9ddd5;
  --paper: #fbfaf6;
  --panel: #ffffff;
  --green: #216e55;
  --blue: #275d9f;
  --warm: #b55f2a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: end;
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 0.96;
  letter-spacing: 0;
  max-width: 850px;
}

.intro {
  color: var(--muted);
  max-width: 680px;
  font-size: 18px;
  line-height: 1.45;
}

.cost-box,
.controls,
.model,
.test-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.cost-box {
  padding: 18px;
}

label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--muted);
  margin-bottom: 8px;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  min-height: 42px;
  padding: 0 12px;
}

input {
  width: 130px;
}

button {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  padding: 0 14px;
  cursor: pointer;
}

button.secondary {
  background: var(--blue);
}

button:hover {
  filter: brightness(1.06);
}

#costHint {
  color: var(--muted);
  line-height: 1.45;
  margin: 14px 0 0;
}

.controls {
  margin: 24px 0;
  padding: 14px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto auto auto;
  gap: 12px;
  align-items: end;
}

.tests {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.test-card {
  padding: 16px;
}

.test-card h2 {
  margin: 0 0 8px;
  font-size: 22px;
}

.test-card p {
  color: var(--muted);
  margin: 0;
  line-height: 1.45;
}

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

.model {
  overflow: hidden;
}

.model-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.model h2 {
  margin: 0 0 4px;
  font-size: 20px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.price {
  color: var(--warm);
  font-weight: 800;
}

.clips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.clip-group {
  padding: 16px;
  border-right: 1px solid var(--line);
}

.clip-group:last-child {
  border-right: 0;
}

.clip-title {
  font-weight: 800;
  margin-bottom: 10px;
}

.clip {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.clip span {
  color: var(--muted);
  font-size: 13px;
}

audio {
  width: 100%;
  height: 36px;
}

.error {
  color: #9b2f25;
  font-size: 14px;
  line-height: 1.4;
}

@media (max-width: 820px) {
  .top,
  .controls,
  .tests,
  .clips {
    grid-template-columns: 1fr;
  }

  .model-head {
    grid-template-columns: 1fr;
  }

  .clip-group {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .clip-group:last-child {
    border-bottom: 0;
  }
}