:root { --bg: #0d0f14; --gold: #ffd166; }
body { margin: 0; background: var(--bg); color: #e8ecf1; font-family: 'Bricolage Grotesque', sans-serif;
  background-image: radial-gradient(circle at 20% 0%, rgba(57,255,136,.08), transparent 40%), radial-gradient(circle at 90% 80%, rgba(255,209,102,.06), transparent 40%),
  linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px, 28px 28px; }
.mono { font-family: 'JetBrains Mono', monospace; }
.acc { color: var(--acc); }
.card { background: rgba(20,24,32,.85); border: 1px solid color-mix(in srgb, var(--acc) 25%, transparent); border-radius: 18px; padding: 22px;
  box-shadow: inset 0 0 30px rgba(0,0,0,.4), 0 0 24px color-mix(in srgb, var(--acc) 8%, transparent); }
.sub { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); border-radius: 12px; padding: 14px; }
.reveal { opacity: 0; animation: rise .6s ease forwards; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.pop { animation: pop .4s ease; } @keyframes pop { 0% { transform: scale(1.3); } 100% { transform: scale(1); } }
.led { width: 8px; height: 8px; border-radius: 50%; background: #39ff88; box-shadow: 0 0 8px #39ff88; animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: .2; } }
.pro-badge { display: flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px; border-radius: 999px; font-family: 'JetBrains Mono'; font-size: 12px;
  border: 1px solid var(--gold); color: var(--gold); background: linear-gradient(110deg, rgba(255,209,102,.05) 30%, rgba(255,209,102,.35) 50%, rgba(255,209,102,.05) 70%);
  background-size: 250% 100%; animation: shimmer 3s linear infinite; user-select: none; }
.pro-badge b { background: var(--gold); color: #1a1300; padding: 2px 8px; border-radius: 999px; }
@keyframes shimmer { from { background-position: 150% 0; } to { background-position: -100% 0; } }
.big-btn { width: 190px; height: 190px; border-radius: 50%; border: 6px solid #2a0a10; font-family: 'JetBrains Mono'; font-weight: 800; font-size: 22px; letter-spacing: .1em; color: #fff;
  background: radial-gradient(circle at 35% 30%, #ff7a8c, #e01e3c 55%, #7d0b1d); box-shadow: 0 12px 0 #4a0612, 0 20px 40px rgba(224,30,60,.4), inset 0 -8px 20px rgba(0,0,0,.3); transition: transform .1s, box-shadow .1s; }
.big-btn:active, .big-btn.busy { transform: translateY(10px) scale(.97); box-shadow: 0 2px 0 #4a0612, 0 6px 20px rgba(224,30,60,.4); }
.bar { background: var(--acc); box-shadow: 0 0 12px var(--acc); transition: width .06s; }
.result { animation: pop .5s ease; } .result.ok { color: var(--acc); } .result.bad { color: var(--gold); }
.chip { font-family: 'JetBrains Mono'; font-size: 10px; padding: 3px 8px; border-radius: 6px; animation: flip .4s ease; }
.chip-pass { background: var(--acc); color: #04140a; font-weight: 800; } .chip-pend { background: rgba(255,255,255,.08); opacity: .7; }
@keyframes flip { from { transform: rotateX(90deg); } to { transform: none; } }
.switch { width: 52px; height: 28px; border-radius: 999px; background: #2a2f3a; position: relative; transition: .2s; }
.switch span { position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; transition: .2s; }
.switch.on { background: var(--acc); } .switch.on span { left: 27px; }
.field { width: 100%; background: #0a0c10; border: 1px solid rgba(255,255,255,.1); border-radius: 8px; padding: 8px 10px; color: inherit; font-family: 'JetBrains Mono'; outline: none; }
.field:focus { border-color: var(--acc); }
.mini-btn { font-family: 'JetBrains Mono'; font-size: 13px; padding: 8px 16px; border-radius: 8px; border: 1px solid var(--acc); color: var(--acc); transition: .15s; }
.mini-btn:hover { background: var(--acc); color: #04140a; } .mini-btn:active { transform: scale(.95); }
.mini-btn.gold { border-color: var(--gold); color: var(--gold); } .mini-btn.gold:hover { background: var(--gold); color: #1a1300; }
.cert { text-align: center; padding: 32px 20px; color: #3b2a12; font-family: 'Bricolage Grotesque'; border-radius: 6px; background: radial-gradient(circle, #f6ecd0, #e3cf9e); border: 8px double #8a6a35; animation: rise .5s ease; }
.cert .mini-btn { border-color: #3b2a12; color: #3b2a12; } .cert .mini-btn:hover { background: #3b2a12; color: #f6ecd0; }
.sig { font-family: 'Pinyon Script', cursive; font-size: 40px; line-height: 1; }
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 50; }
.ultra { animation: hue 4s linear infinite; } @keyframes hue { to { filter: hue-rotate(360deg); } }
button:disabled { cursor: wait; }