:root{--cf-ink:#172033;--cf-muted:#687086;--cf-line:#dfe4ec;--cf-panel:#fff;--cf-soft:#f5f7fb;--cf-accent:#5b4cf0;--cf-accent2:#7b68ff;--cf-gold:#d9aa3b;--cf-gold2:#f8df86;--cf-shadow:0 18px 50px rgba(31,41,70,.12)}
.cf449-body{background:linear-gradient(180deg,#f8f9fd 0,#f4f6fb 38%,#eef1f7 100%);color:var(--cf-ink)}
.cf449-page{padding-bottom:64px}.cf449-hero{display:flex;gap:24px;align-items:flex-end;justify-content:space-between;padding:34px 0 20px}.cf449-hero h1{font-size:clamp(2.15rem,5vw,4.2rem);line-height:.96;margin:5px 0 12px;letter-spacing:-.055em}.cf449-hero p{max-width:720px;margin:0;color:var(--cf-muted);font-size:1.03rem}.cf449-trust{display:grid;grid-template-columns:repeat(3,minmax(100px,1fr));gap:8px;min-width:min(420px,44vw)}.cf449-trust div,.cf449-stats>div,.cf449-probout,.cf449-lab-actions>div,.cf449-streak-row>div{background:#fff;border:1px solid var(--cf-line);border-radius:16px;padding:12px 14px}.cf449-trust strong,.cf449-trust span{display:block}.cf449-trust strong{font-size:.98rem}.cf449-trust span{font-size:.76rem;color:var(--cf-muted);margin-top:3px}.cf449-stage,.cf449-lab,.cf449-learn,.cf449-details{border:1px solid var(--cf-line);box-shadow:var(--cf-shadow);border-radius:24px;background:rgba(255,255,255,.96)}
.cf449-stage{padding:20px}.cf449-stagehead{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:14px}.cf449-stagehead h2{margin:3px 0 0;font-size:clamp(1.25rem,2vw,1.65rem)}.cf449-mini-actions,.cf449-batch,.cf449-preset,.cf449-lab-actions{display:flex;flex-wrap:wrap;gap:8px}.cf449-mini-actions button,.cf449-batch button,.cf449-preset button,.cf449-history-head button{border:1px solid var(--cf-line);background:#fff;border-radius:12px;padding:9px 12px;font-weight:750;cursor:pointer;color:var(--cf-ink)}.cf449-primary{border:0!important;background:linear-gradient(135deg,var(--cf-accent),var(--cf-accent2))!important;color:#fff!important;border-radius:14px;padding:12px 18px;font-weight:850;cursor:pointer;box-shadow:0 9px 22px rgba(91,76,240,.2)}
.cf449-arena{display:grid;grid-template-columns:minmax(260px,.82fr) minmax(260px,1.18fr);gap:20px;align-items:center;min-height:355px;border-radius:22px;background:radial-gradient(circle at 31% 42%,rgba(248,223,134,.3),transparent 34%),linear-gradient(145deg,#f8f8fd,#eef0f8);border:1px solid #e5e8f1;padding:26px}.cf449-coin-button{border:0;background:transparent;padding:12px;cursor:pointer;perspective:900px;justify-self:center;border-radius:50%}.cf449-coin-button:focus-visible{outline:4px solid rgba(91,76,240,.28);outline-offset:8px}.cf449-coin{width:220px;height:220px;position:relative;display:block;transform-style:preserve-3d;transition:transform .72s cubic-bezier(.2,.72,.18,1)}.cf449-coin::after{content:"";position:absolute;inset:5px;border-radius:50%;box-shadow:inset 0 0 0 4px rgba(255,255,255,.26),0 18px 30px rgba(90,70,20,.22);transform:translateZ(-6px)}.cf449-face{position:absolute;inset:0;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;backface-visibility:hidden;border:8px solid #c49425;background:radial-gradient(circle at 34% 28%,#fff1b6 0,#f7d96e 24%,#d5a535 65%,#b27d16 100%);box-shadow:inset 0 0 0 4px rgba(255,255,255,.25),inset 0 0 0 11px rgba(107,72,12,.09)}.cf449-face b{font-size:5rem;line-height:1;color:#7d5611;text-shadow:0 2px 0 #ffe9a0}.cf449-face small{font-weight:900;letter-spacing:.16em;color:#6e4d12;margin-top:8px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cf449-tails{transform:rotateY(180deg)}.cf449-coin.show-tail{transform:rotateY(180deg)}.cf449-coin.is-flipping{animation:cf449flip .72s cubic-bezier(.18,.78,.2,1)}.cf449-coin.is-flipping.show-tail{animation-name:cf449flipTail}.cf449-result{padding:6px 4px}.cf449-result>small{font-weight:850;color:var(--cf-muted);letter-spacing:.13em}.cf449-result>strong{display:block;font-size:clamp(2.3rem,7vw,5.5rem);line-height:1;margin:8px 0 10px;letter-spacing:-.055em;overflow-wrap:anywhere}.cf449-result>p{color:var(--cf-muted);margin:0 0 18px}.cf449-batch{margin-top:9px}.cf449-error{margin-top:12px;padding:12px 14px;border:1px solid #f1b9b9;background:#fff3f3;border-radius:12px;color:#8e2525;font-weight:700}
.cf449-stats{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;margin-top:14px}.cf449-stats small,.cf449-stats strong,.cf449-stats span{display:block}.cf449-stats small{font-size:.72rem;color:var(--cf-muted);font-weight:760}.cf449-stats strong{font-size:1.45rem;margin:4px 0 1px}.cf449-stats span{font-size:.75rem;color:var(--cf-muted)}.cf449-history-head{display:flex;justify-content:space-between;align-items:end;gap:12px;margin:18px 0 9px}.cf449-history-head h3{margin:2px 0 0;font-size:1rem}.cf449-history{min-height:54px;display:flex;gap:7px;flex-wrap:wrap;align-items:center}.cf449-history p{color:var(--cf-muted);margin:0}.cf449-chip{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;min-width:48px;height:48px;border-radius:14px;background:#f5f6fb;border:1px solid var(--cf-line);font-weight:900}.cf449-chip small{font-size:.58rem;color:var(--cf-muted);font-weight:700}.cf449-custom{margin-top:14px;border-top:1px solid var(--cf-line);padding-top:10px}.cf449-custom summary{cursor:pointer;font-weight:850;padding:7px 0}.cf449-custom-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:8px 0 2px}.cf449-custom-grid label,.cf449-labgrid label,.cf449-streak-row label{font-size:.78rem;font-weight:800;color:var(--cf-muted)}.cf449-custom-grid input,.cf449-labgrid input,.cf449-labgrid select,.cf449-streak-row input{display:block;width:100%;box-sizing:border-box;margin-top:5px;border:1px solid #cfd5e1;border-radius:12px;background:#fff;color:var(--cf-ink);padding:11px 12px;font:inherit}.cf449-preset{grid-column:1/-1}.cf449-custom-grid>.cf449-primary{justify-self:start}.cf449-series{grid-column:1/-1;display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:2px}.cf449-series>span{font-size:.75rem;color:var(--cf-muted);font-weight:850}.cf449-series button{border:1px solid var(--cf-line);background:#fff;border-radius:12px;padding:9px 12px;font-weight:800;color:var(--cf-ink);cursor:pointer}.cf449-series strong{font-size:.82rem;margin-left:auto}
.cf449-lab,.cf449-learn{margin-top:18px;padding:20px}.cf449-labgrid{display:grid;grid-template-columns:1fr 1fr 1.25fr 1.45fr;gap:10px;align-items:end}.cf449-probout small,.cf449-probout strong,.cf449-probout p{display:block;margin:0}.cf449-probout small{color:var(--cf-muted);font-size:.72rem;font-weight:800}.cf449-probout strong{font-size:1.6rem;margin:4px 0}.cf449-probout p{font-size:.8rem;color:var(--cf-muted)}.cf449-lab-actions{align-items:stretch;margin-top:12px}.cf449-lab-actions>div{flex:1}.cf449-lab-actions>div small,.cf449-lab-actions>div strong,.cf449-lab-actions>div span{display:block}.cf449-lab-actions>div small{color:var(--cf-muted);font-weight:800;font-size:.72rem}.cf449-lab-actions>div strong{font-size:1.25rem;margin:4px 0}.cf449-lab-actions>div span{font-size:.76rem;color:var(--cf-muted)}.cf449-streak-row{display:grid;grid-template-columns:220px 1fr;gap:10px;margin-top:10px}.cf449-streak-row>div small,.cf449-streak-row>div strong,.cf449-streak-row>div span{display:block}.cf449-streak-row>div small{font-size:.72rem;font-weight:800;color:var(--cf-muted)}.cf449-streak-row>div strong{font-size:1.25rem;margin:4px 0}.cf449-streak-row>div span{font-size:.76rem;color:var(--cf-muted)}.cf449-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.cf449-cards article{border:1px solid var(--cf-line);background:var(--cf-soft);border-radius:16px;padding:14px}.cf449-cards article>strong{display:grid;place-items:center;width:28px;height:28px;border-radius:10px;background:#fff;border:1px solid var(--cf-line)}.cf449-cards h3{font-size:1rem;margin:10px 0 6px}.cf449-cards p{margin:0;color:var(--cf-muted);font-size:.88rem}.cf449-details{margin-top:18px;padding:0}.cf449-details summary{cursor:pointer;font-weight:850;padding:18px 20px}.cf449-details>div{padding:0 20px 20px}.cf449-details h2{font-size:1rem;margin:14px 0 5px}.cf449-details p{color:var(--cf-muted);margin:0}.cf449-details code{background:#f1f2f7;border-radius:5px;padding:1px 4px}.cf449-toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,18px);opacity:0;pointer-events:none;background:#172033;color:#fff;border-radius:999px;padding:10px 16px;font-weight:800;transition:.2s;z-index:100}.cf449-toast.show{opacity:1;transform:translate(-50%,0)}
@keyframes cf449flip{0%{transform:rotateY(0) translateY(0)}45%{transform:rotateY(900deg) translateY(-34px) scale(1.05)}100%{transform:rotateY(1800deg) translateY(0)}}@keyframes cf449flipTail{0%{transform:rotateY(180deg) translateY(0)}45%{transform:rotateY(1080deg) translateY(-34px) scale(1.05)}100%{transform:rotateY(1980deg) translateY(0)}}
@media(max-width:860px){.cf449-hero{display:block;padding-top:24px}.cf449-trust{min-width:0;margin-top:14px}.cf449-arena{grid-template-columns:1fr;min-height:0;text-align:center}.cf449-result .cf449-batch{justify-content:center}.cf449-stats{grid-template-columns:repeat(3,1fr)}.cf449-labgrid{grid-template-columns:1fr 1fr}.cf449-probout{grid-column:1/-1}.cf449-cards{grid-template-columns:1fr}.cf449-streak-row{grid-template-columns:1fr}}
@media(max-width:520px){.cf449-page{padding-left:12px;padding-right:12px}.cf449-hero h1{font-size:2.65rem}.cf449-trust{grid-template-columns:repeat(3,1fr)}.cf449-trust div{padding:9px 8px}.cf449-stage,.cf449-lab,.cf449-learn{padding:14px;border-radius:19px}.cf449-stagehead{display:block}.cf449-mini-actions{margin-top:10px}.cf449-arena{padding:16px 10px;gap:4px}.cf449-coin{width:178px;height:178px}.cf449-face b{font-size:4.1rem}.cf449-result>strong{font-size:2.7rem;margin-top:4px}.cf449-stats{grid-template-columns:repeat(2,1fr)}.cf449-custom-grid,.cf449-labgrid{grid-template-columns:1fr}.cf449-probout{grid-column:auto}.cf449-history-head{align-items:center}.cf449-lab-actions{display:grid;grid-template-columns:1fr}.cf449-trust span{font-size:.66rem}}
@media(prefers-reduced-motion:reduce){.cf449-coin,.cf449-coin.is-flipping{transition:none!important;animation:none!important}.cf449-toast{transition:none}}