:root {
  --bg: #0f1115;
  --panel: #171a21;
  --card: #1e222b;
  --line: #2a2f3a;
  --text: #e8eaed;
  --muted: #9aa0ac;
  --accent: #ffcf4a;
  --on: #3ddc84;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.hero {
  text-align: center;
  padding: 64px 20px 40px;
  background: radial-gradient(circle at 50% -20%, #232838, var(--bg));
}
.hero h1 { font-size: 44px; margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 16px; margin: 0 auto; max-width: 560px; }
.lead strong { color: var(--accent); }

main { max-width: 880px; margin: 0 auto; padding: 20px; }

h2 { font-size: 20px; margin: 32px 0 16px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  transition: border-color .2s, transform .1s;
}
.card.on { border-color: var(--on); }
.card-emoji { font-size: 32px; }
.card-name { font-weight: 700; font-size: 16px; margin: 8px 0 6px; }
.card-desc { color: var(--muted); font-size: 13px; min-height: 56px; }

.toggle {
  margin-top: 12px;
  width: 100%;
  padding: 8px 12px;
  border: 0;
  border-radius: 10px;
  background: #2c313d;
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s;
}
.toggle:hover { background: #363c4a; }
.card.on .toggle { background: var(--on); color: #04240f; }

.generator {
  margin-top: 40px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
}
.hint { color: var(--muted); font-size: 14px; }

.tagbox {
  background: #0b0d11;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
}
.tagbox code { color: var(--accent); font-size: 13px; white-space: pre; font-family: "SFMono-Regular", Menlo, Consolas, monospace; }

.actions { display: flex; gap: 12px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
#copyBtn {
  padding: 10px 18px; border: 0; border-radius: 10px;
  background: var(--accent); color: #241c00; font-weight: 800; cursor: pointer; font-size: 14px;
}
#copyBtn:disabled { opacity: .4; cursor: not-allowed; }
#demoLink { color: var(--muted); font-size: 14px; text-decoration: none; }
#demoLink:hover { color: var(--text); }

.note { color: var(--muted); font-size: 12px; margin-top: 14px; }
.note code, .hint code { background: #0b0d11; padding: 1px 6px; border-radius: 6px; }

footer { text-align: center; color: var(--muted); font-size: 13px; padding: 40px 20px; }