:root {
  color-scheme: light dark;
  --bg: #f6f7f5;
  --panel: #ffffff;
  --text: #18201a;
  --muted: #657063;
  --line: #dce2da;
  --accent: #2f7d5a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101511;
    --panel: #182019;
    --text: #f4f7f1;
    --muted: #a7b0a4;
    --line: #2f3a31;
    --accent: #72c596;
  }
}

* {
  box-sizing: border-box;
  min-width: 0;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  border-right: 1px solid var(--line);
  padding: 1rem;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
}

.brand {
  display: grid;
  gap: 0.1rem;
  margin-bottom: 1.5rem;
}

.brand strong {
  font-size: 1rem;
}

.brand span,
.eyebrow,
.panel span {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0;
}

nav {
  display: grid;
  gap: 0.25rem;
}

nav a {
  border-radius: 6px;
  color: var(--text);
  padding: 0.55rem 0.65rem;
  text-decoration: none;
}

nav a[aria-current="page"] {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}

.workspace {
  padding: 1.25rem;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

h1,
p {
  margin: 0;
}

button {
  background: var(--text);
  border: 0;
  border-radius: 6px;
  color: var(--bg);
  cursor: pointer;
  font: inherit;
  padding: 0.55rem 0.8rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}

.grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid div {
  display: grid;
  gap: 0.2rem;
}

@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
  }

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

  nav {
    grid-auto-flow: column;
    overflow-x: auto;
  }

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

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