:root { --c: #2563eb; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "Segoe UI", sans-serif; background: #f4f7fb; color: #1f2937; }
header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; padding: 12px 20px; background: #0f172a; color: #fff; }
header h1 { margin: 0; font-size: 1.4rem; } header h1 span { color: #38bdf8; }
.who label { margin-left: 12px; font-size: .85rem; }
input, select, button { font: inherit; padding: 6px 10px; border-radius: 8px; border: 1px solid #cbd5e1; }
button { background: var(--c); color: #fff; border: 0; cursor: pointer; }
button:hover { filter: brightness(1.1); }
nav { display: flex; gap: 8px; padding: 12px 20px; flex-wrap: wrap; }
nav button { background: #fff; color: #111; border: 2px solid transparent; }
nav button.on { border-color: var(--c); font-weight: 600; }
main { padding: 0 20px 20px; max-width: 980px; margin: auto; }
#list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.card { background: #fff; padding: 14px; border-radius: 14px; box-shadow: 0 1px 4px #0002; cursor: pointer; border-top: 5px solid var(--c); }
.card:hover { transform: translateY(-2px); }
.tag { font-size: .7rem; background: #e0e7ff; padding: 2px 8px; border-radius: 99px; }
#stage { background: #fff; padding: 16px; border-radius: 14px; }
canvas { max-width: 100%; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 10px; }
.ctl { display: flex; flex-wrap: wrap; gap: 14px; margin: 8px 0; align-items: center; }
.ctl label { font-size: .9rem; }
.out { font-weight: 600; margin: 6px 0; }
.opts button { margin: 4px; background: #e2e8f0; color: #111; }
.big { font-size: 1.4rem; }
#result { font-weight: 700; color: #059669; min-height: 1.5em; }
footer { text-align: center; padding: 20px; font-size: .8rem; color: #64748b; }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }