:root {
  --ink: #17211c;
  --muted: #5f6b62;
  --paper: #f7f5ee;
  --panel: #fffdf8;
  --line: #d9d4c6;
  --accent: #2c7a64;
  --accent-dark: #155f4d;
  --warn: #b13f2e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  background:
    linear-gradient(135deg, rgba(44, 122, 100, 0.14), transparent 36%),
    repeating-linear-gradient(0deg, rgba(23, 33, 28, 0.035), rgba(23, 33, 28, 0.035) 1px, transparent 1px, transparent 28px),
    var(--paper);
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 34px 0;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 20px 70px rgba(23, 33, 28, 0.12);
  padding: 28px;
}

.heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.heading p,
.heading span,
small {
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
}

h1 {
  margin: 0;
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0;
}

form,
label {
  display: grid;
  gap: 8px;
}

form {
  gap: 18px;
}

.restore {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: white;
  font: 15px/1.4 ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
  padding: 11px 12px;
}

textarea {
  resize: vertical;
}

button,
.download {
  justify-self: start;
  border: 0;
  border-radius: 6px;
  color: white;
  background: var(--accent);
  cursor: pointer;
  font: 800 15px/1 ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
  padding: 13px 20px;
  text-decoration: none;
}

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

.results {
  display: grid;
  gap: 10px;
}

article {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
}

article small {
  grid-column: 2;
}

.error {
  color: var(--warn);
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
}

.footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "Segoe UI", sans-serif;
  font-size: 13px;
}

@media (max-width: 720px) {
  .grid,
  article {
    grid-template-columns: 1fr;
  }

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

  h1 {
    font-size: 32px;
  }
}