:root {
  --fg: #111;
  --bg: #fff;
  --muted: #666;
  --accent: #1a1a1a;
  --warn: #b35c00;
  --error: #b00020;
  --border: #ddd;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 800px;
  margin: 0 auto;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 600; text-decoration: none; color: var(--fg); }
nav { display: flex; align-items: center; gap: 16px; font-size: 14px; }
nav .who { color: var(--muted); }
nav a { color: var(--fg); }
.inline { display: inline; margin: 0; }

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

h1 { margin-top: 8px; }

a { color: var(--accent); }

label { display: block; margin: 12px 0; }
label input { display: block; margin-top: 4px; }
input[type=text], input[type=password], input[type=number] {
  font-size: 16px; padding: 10px; min-height: 44px;
  width: 100%; max-width: 360px;
  border: 1px solid var(--border); border-radius: 4px;
}
input[type=file] { font-size: 16px; padding: 8px 0; }

button, .btn {
  display: inline-block;
  font: inherit; font-size: 16px;
  padding: 12px 18px; min-height: 44px;
  border: 1px solid var(--accent); background: var(--bg); color: var(--accent);
  border-radius: 4px; cursor: pointer;
  text-decoration: none;
}
button.primary, .btn.primary { background: var(--accent); color: var(--bg); }
button.secondary, .btn.secondary { border-color: var(--border); color: var(--fg); }
button.small, .btn.small { padding: 6px 10px; min-height: 32px; font-size: 14px; }
button.link { border: none; background: none; color: var(--accent); padding: 0; min-height: 0; cursor: pointer; }

.error { color: var(--error); }
.warn { color: var(--warn); border: 1px solid var(--warn); padding: 10px; border-radius: 4px; }
.hint { color: var(--muted); font-size: 14px; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); font-size: 14px; }

.compare .progress {
  display: flex; align-items: center; gap: 12px;
  font-size: 14px; color: var(--muted); margin-bottom: 12px;
}
.compare .progress .spacer { flex: 1; }

.compare .pair {
  display: flex; gap: 12px; justify-content: center; align-items: stretch;
  margin-bottom: 16px;
}
.img-wrap { margin: 0; flex: 1; text-align: center; }
.img-wrap img {
  max-width: 100%; max-height: 45vh; height: auto; width: auto;
  border: 1px solid var(--border); border-radius: 4px;
  transition: opacity 120ms ease-in-out;
}
.img-wrap figcaption { font-size: 13px; color: var(--muted); margin-top: 4px; }

.buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.buttons .vote { width: 100%; }

kbd {
  display: inline-block; font-size: 12px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 3px;
  padding: 1px 6px; margin-left: 6px; font-family: ui-monospace, monospace;
}

@media (max-width: 600px) {
  .compare .pair { flex-direction: column; }
  .img-wrap img { max-height: 38vh; }
  .buttons { grid-template-columns: 1fr; }
}