:root{color-scheme:dark;--bg:#07100e;--panel:#0d1916;--ink:#f5f8f6;--muted:#8fa19c;--line:rgba(255,255,255,.11);--out:#899691;--ctrl:#b8ff5c;--inf:#76d9ff;--bad:#ff7d73;--gold:#ffd76f}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Yu Gothic UI","Yu Gothic",sans-serif;-webkit-font-smoothing:antialiased}body{overflow-x:hidden;background:radial-gradient(circle at 50% -10%,rgba(184,255,92,.09),transparent 34%),linear-gradient(#07100e,#050807)}button,a{-webkit-tap-highlight-color:transparent}.app{width:min(540px,100%);min-height:100svh;margin:auto;position:relative;padding:env(safe-area-inset-top) 18px calc(24px + env(safe-area-inset-bottom));overflow:hidden}.app:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.19;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:32px 32px}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:4}.brand{color:var(--ctrl);font-size:12px;font-weight:950;letter-spacing:.22em;text-decoration:none}.streak{display:flex;gap:7px;align-items:baseline;border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:rgba(255,255,255,.025)}.streak small{font-size:12px;letter-spacing:.13em;color:var(--muted)}.streak b{font-size:16px}.screen{display:none;min-height:calc(100svh - 96px);position:relative;z-index:2}.screen.active{display:flex}.intro-screen,.result-screen,.action-screen{flex-direction:column;justify-content:center;align-items:stretch;padding:10px 2px 30px}.eyebrow{color:var(--ctrl);font-size:12px;font-weight:900;letter-spacing:.18em;margin-bottom:14px}.intro-screen h1{font-size:clamp(52px,16vw,82px);line-height:.9;letter-spacing:-.08em;margin:0 0 22px;font-weight:950}.lead{font-size:22px;line-height:1.55;margin:0 0 26px;color:#c8d1ce}.lead b{color:#fff}.primary{width:100%;border:0;border-radius:18px;background:var(--ctrl);color:#0b120d;font-size:15px;font-weight:950;padding:18px 19px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 14px 40px rgba(184,255,92,.12);cursor:pointer}.primary:active{transform:scale(.985)}.text-btn{align-self:center;border:0;background:none;color:#82918d;padding:18px;font-size:12px;cursor:pointer}.intro-rule{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:14px}.intro-rule span{border:1px solid var(--line);border-radius:15px;padding:12px 13px;color:#9caca7;font-size:12px}.intro-rule b{display:block;font-size:12px;margin-bottom:3px;color:#fff;letter-spacing:.07em}.orbit{height:190px;position:relative;margin:-30px 0 12px}.orbit:before,.orbit:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.09);border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%)}.orbit:before{width:160px;height:160px}.orbit:after{width:260px;height:260px}.orbit-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:var(--ctrl);color:#091009;font-size:13px;font-weight:950;box-shadow:0 0 42px rgba(184,255,92,.2)}.orbit-dot{position:absolute;font-style:normal;font-size:12px;color:#7f8c88;border:1px solid rgba(255,255,255,.08);padding:6px 8px;border-radius:999px;background:#0b1412}.orbit-dot.in{color:#cfff97;border-color:rgba(184,255,92,.25)}.d1{left:6%;top:17%}.d2{right:4%;top:25%}.d3{left:10%;bottom:2%}.d4{right:20%;bottom:11%}.d5{left:22%;top:26%}
.hud{position:relative;z-index:3;padding:2px 0 14px}.hud-main{display:flex;align-items:end;justify-content:space-between;margin-bottom:7px}.hud-main span{font-size:12px;letter-spacing:.15em;color:#82918d}.hud-main strong{font-size:21px}.progress{height:3px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden}.progress i{display:block;height:100%;width:0;background:var(--ctrl);transition:width .25s ease}.control-meter{display:grid;grid-template-columns:64px 1fr 36px;gap:8px;align-items:center;margin-top:10px}.control-meter span,.control-meter b{font-size:12px;letter-spacing:.1em;color:#82918d}.control-meter b{text-align:right}.control-meter>div{height:6px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}.control-meter i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--inf),var(--ctrl));transition:width .35s ease}.play-screen{flex-direction:column;padding:12px 0 22px}.context{align-self:center;border:1px solid var(--line);border-radius:999px;padding:7px 11px;color:#8fa09b;font-size:12px;letter-spacing:.12em;margin:4px 0 20px}.card-wrap{position:relative;display:grid;place-items:center;flex:1;min-height:330px}.problem-card{width:100%;min-height:288px;border:1px solid rgba(255,255,255,.13);border-radius:30px;padding:25px 22px;display:flex;flex-direction:column;justify-content:center;text-align:center;background:radial-gradient(circle at 50% 10%,rgba(255,255,255,.055),transparent 50%),#0d1714;box-shadow:0 30px 80px rgba(0,0,0,.35);transition:transform .24s ease,opacity .24s ease,border-color .2s ease}.problem-card small{font-size:12px;color:#789089;letter-spacing:.12em;margin-bottom:18px}.problem-card h2{font-size:clamp(27px,8vw,39px);line-height:1.3;letter-spacing:-.045em;margin:0 0 17px}.problem-card p{font-size:12px;color:#788984;margin:0}.problem-card.correct{border-color:rgba(184,255,92,.6);box-shadow:0 30px 90px rgba(68,118,50,.22)}.problem-card.wrong{border-color:rgba(255,125,115,.7);animation:shake .28s}.problem-card.fly-out{transform:translateX(-110%) rotate(-8deg);opacity:0}.problem-card.fly-control{transform:translateX(110%) rotate(8deg);opacity:0}.problem-card.fly-up{transform:translateY(-100%) scale(.8);opacity:0}.timer{height:3px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden;margin-top:24px}.timer i{display:block;width:100%;height:100%;background:#64746f;transform-origin:left}.burst{position:absolute;inset:auto 0 28px;text-align:center;font-size:26px;font-weight:950;letter-spacing:-.04em;pointer-events:none;opacity:0;transform:scale(.8)}.burst.show{animation:burst .55s ease}.burst.good{color:var(--ctrl)}.burst.bad{color:var(--bad)}.choices{display:grid;grid-template-columns:1fr 1fr;gap:9px}.choices.two .influence{display:none}.choices.three{grid-template-columns:1fr 1fr 1fr}.choice{border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.035);color:#fff;min-height:76px;padding:10px 11px;display:flex;align-items:center;justify-content:center;gap:7px;cursor:pointer}.choice span{font-size:18px;opacity:.65}.choice b{display:block;font-size:12px;letter-spacing:.05em}.choice small{display:block;font-size:12px;color:#7f918b;margin-top:4px;white-space:nowrap}.choice.control{border-color:rgba(184,255,92,.24);background:rgba(184,255,92,.06)}.choice.influence{border-color:rgba(118,217,255,.2);background:rgba(118,217,255,.05)}.choices.three .choice{padding-left:5px;padding-right:5px}.choices.three .choice span{display:none}.choices.three .choice b{font-size:12px}.choices.three .choice small{font-size:12px}.choice:active{transform:scale(.97)}.microcopy{text-align:center;color:#677873;font-size:12px;margin:10px 0 0}
.boss-screen{flex-direction:column;padding:18px 0 25px}.boss-kicker{color:var(--bad);font-size:12px;font-weight:950;letter-spacing:.17em;margin-top:4px}.boss-screen>h2{font-size:clamp(37px,11vw,58px);letter-spacing:-.065em;line-height:1.02;margin:14px 0 11px}.boss-copy{color:#9caca7;font-size:12px;line-height:1.7;margin:0 0 16px}.boss-cloud{position:relative;flex:1;min-height:390px;display:grid;place-items:center}.boss-mass{position:absolute;width:250px;height:250px;border-radius:44% 56% 61% 39% / 43% 46% 54% 57%;display:grid;place-items:center;background:radial-gradient(circle at 34% 30%,#29342f,#111714 55%,#090b0a);box-shadow:0 0 70px rgba(0,0,0,.65),inset 0 0 40px rgba(255,255,255,.03);animation:morph 5s ease-in-out infinite;transition:transform .4s ease,opacity .4s ease}.boss-mass span{font-size:80px;font-weight:950;color:#46524e}.fragments{position:relative;width:100%;height:100%;display:flex;flex-wrap:wrap;gap:8px;align-content:center;justify-content:center;z-index:2;padding:25px 4px}.fragment{border:1px solid rgba(255,255,255,.13);border-radius:15px;background:rgba(10,15,13,.94);color:#eef3f0;padding:13px 12px;min-height:54px;font-size:12px;font-weight:800;box-shadow:0 8px 25px rgba(0,0,0,.3);cursor:pointer;animation:fragmentIn .38s both}.fragment small{display:block;color:#70817b;font-size:12px;font-weight:700;margin-top:5px}.fragment.out{animation:fragmentOut .45s forwards}.fragment.kept{border-color:rgba(184,255,92,.45);background:rgba(184,255,92,.08);color:#d9ffad}.boss-status{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;color:#84958f;font-size:12px}.boss-status b{color:var(--ctrl)}
.action-screen{text-align:center}.action-ring{position:absolute;inset:10% -30%;pointer-events:none}.action-ring i{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:1px solid rgba(184,255,92,.08);border-radius:50%;animation:ring 3.5s infinite}.action-ring i:nth-child(1){width:260px;height:260px}.action-ring i:nth-child(2){width:390px;height:390px;animation-delay:.6s}.action-ring i:nth-child(3){width:520px;height:520px;animation-delay:1.2s}.action-before{font-size:14px;color:#71827c;text-decoration:line-through;margin:5px 0}.down{display:block;color:#52625d;font-size:26px;margin:12px 0}.action-card{position:relative;border:1px solid rgba(184,255,92,.38);border-radius:25px;background:linear-gradient(145deg,rgba(184,255,92,.11),rgba(184,255,92,.035));padding:28px 18px;margin-bottom:18px;box-shadow:0 20px 70px rgba(83,132,55,.13)}.action-card small{font-size:12px;color:#9bd25b;letter-spacing:.12em}.action-card h2{font-size:28px;line-height:1.35;letter-spacing:-.045em;margin:12px 0 0}.action-message{color:#8e9f99;font-size:13px;line-height:1.7;margin:2px 0 24px}.action-message b{color:#fff}
.result-screen h2{font-size:42px;line-height:1.02;letter-spacing:-.06em;margin:0 0 22px}.result-grade{position:absolute;right:1px;top:60px;font-size:112px;font-weight:950;line-height:1;color:rgba(184,255,92,.08)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.stats div{border:1px solid var(--line);border-radius:16px;padding:13px 10px;background:rgba(255,255,255,.025)}.stats small{display:block;font-size:12px;color:#71827c;margin-bottom:7px}.stats b{font-size:19px}.insight{border-left:2px solid var(--ctrl);padding:13px 15px;margin:6px 0 22px;background:rgba(184,255,92,.035);font-size:12px;line-height:1.8;color:#a8b5b1}.insight b{color:#fff}.back-link{text-align:center;color:#71827c;font-size:12px;text-decoration:none;padding:17px}.toast{position:fixed;left:50%;bottom:calc(22px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;z-index:20;border:1px solid rgba(255,255,255,.13);border-radius:999px;background:#101815;color:#dfe8e4;font-size:12px;padding:10px 15px;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@keyframes shake{25%{transform:translateX(-8px)}50%{transform:translateX(7px)}75%{transform:translateX(-4px)}}@keyframes burst{0%{opacity:0;transform:scale(.7)}25%{opacity:1;transform:scale(1.08)}70%{opacity:1;transform:scale(1)}100%{opacity:0;transform:translateY(-20px)}}@keyframes morph{0%,100%{border-radius:44% 56% 61% 39% / 43% 46% 54% 57%;transform:rotate(-2deg)}50%{border-radius:58% 42% 38% 62% / 55% 35% 65% 45%;transform:rotate(3deg)}}@keyframes fragmentIn{from{opacity:0;transform:scale(.7) translateY(15px)}to{opacity:1;transform:none}}@keyframes fragmentOut{to{opacity:0;transform:translateY(50px) scale(.55) rotate(9deg);filter:blur(4px)}}@keyframes ring{0%,100%{opacity:.35;transform:translate(-50%,-50%) scale(.85)}50%{opacity:1;transform:translate(-50%,-50%) scale(1)}}
@media(max-height:720px){.orbit{height:145px}.intro-screen h1{font-size:54px}.card-wrap{min-height:280px}.problem-card{min-height:235px}.boss-cloud{min-height:310px}.boss-mass{width:210px;height:210px}.screen{min-height:calc(100svh - 82px)}}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}