:root {
  --bg-1: #f6f3ee;
  --ink: #2a231d;
  --muted: #6e5f52;
  --accent: #b17840fa;
  --panel: #fffaf4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Palatino Linotype", "Book Antiqua", serif;
  color: var(--ink);
  background: var(--bg-1);
}

.shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  display: grid;
  gap: 24px;
}

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

h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 56px);
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

a {
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
  &:hover { text-decoration: underline; }
}

.desc {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(25, 18, 12, 0.12);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.size-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.size-control label {
  font-size: 13px;
  color: var(--muted);
}

.size-control input {
  width: 72px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  background: #f9f4ed;
  color: var(--ink);
  &:focus { outline: none; }
}

button {
  border: none;
  padding: 12px 18px;
  border-radius: 999px;
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  font-size: 14px;
  cursor: pointer;
  color: #fff;
  background: var(--accent);
}

.result {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.result label {
  font-size: 13px;
  color: var(--muted);
}

.result input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  background: #f9f4ed;
  color: var(--ink);
  &:focus { outline: none; }
}

.qr-block {
  display: grid;
  gap: 12px;
  justify-items: start;
}

.qr-block img {
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 8px 20px #1f1b1633;
}

.map {
  --cell: min(6vw, 26px);
  display: grid;
  grid-template-columns: repeat(var(--w), var(--cell));
  grid-auto-rows: var(--cell);
  gap: 2px;
  padding: 8px;
  border-radius: 14px;
  background: #efe5d9;
}

.cell {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 12px;
  font-family: "Trebuchet MS", "Verdana", sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
}


@media (max-width: 640px) {
  .shell {
    padding: 30px 16px 50px;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .qr-block {
    justify-items: center;
  }
}