/*
  © 2026 Carolina Frederico. All rights reserved.
  Educational simulation only. Not intended for clinical decision-making.
*/

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --ink: #18202a;
  --muted: #64707d;
  --line: #d9dee5;
  --blue: #1f77b4;
  --red: #c9423a;
  --green: #2f8f4e;
  --gray: #a8adb4;
  --shadow: 0 14px 34px rgba(20, 30, 45, 0.08);
}

* {
  box-sizing: border-box;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 32px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.08;
}

.subtitle {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 25px);
  font-weight: 700;
}

.credit {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

h2 {
  font-size: 16px;
}

.badge {
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  white-space: nowrap;
  font-size: 13px;
}

.layout {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel,
.chartBlock,
.note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel {
  padding: 16px;
}

.panel h2 {
  margin-bottom: 14px;
}

label {
  display: grid;
  gap: 7px;
  margin: 0 0 15px;
  color: var(--muted);
  font-size: 13px;
}

select,
input[type="range"] {
  width: 100%;
}

select {
  appearance: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
}

input[type="range"] {
  accent-color: var(--blue);
}

output {
  color: var(--ink);
  font-weight: 700;
  font-size: 13px;
}

.buttonRow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

button {
  border: 1px solid var(--line);
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  cursor: pointer;
}

button#reset {
  background: #fff;
  color: var(--ink);
}

.metrics {
  display: grid;
  gap: 12px;
}

.metrics div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
  font-size: 14px;
}

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

.metrics strong {
  text-align: right;
}

.disclaimer {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  padding: 2px 4px;
}

.workspace {
  display: grid;
  gap: 14px;
}

.chartBlock {
  overflow: hidden;
}

.chartTitle {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.chartTitle span {
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}

.chartGrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.note {
  padding: 14px 16px;
  color: #384250;
  line-height: 1.5;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .topbar,
  .chartTitle {
    align-items: flex-start;
    flex-direction: column;
  }

  .layout {
    padding: 10px;
  }
}