:root{--accent:#b9a0ff;--accent2:#53e6f3;--gold:#ffd166;--ink:#f3f8ff;--muted:#aab7cb;--bg:#030914;--panel:rgba(7,20,39,.9);--line:rgba(148,197,255,.16);--good:#52e0a1;--bad:#ff7189}
*{box-sizing:border-box}
html{min-height:100%;background:var(--bg)}
body{min-height:100vh;margin:0;color:var(--ink);font-family:"Tahoma","Arial",sans-serif;background:radial-gradient(circle at 85% 4%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 25rem),radial-gradient(circle at 10% 90%,rgba(38,208,220,.1),transparent 28rem),linear-gradient(145deg,#020814,#071426);overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;background:linear-gradient(rgba(2,8,20,.45),rgba(2,8,20,.94)),url("/functions-ruins-background.webp") center/cover no-repeat;opacity:.55;z-index:-2}
body:after{content:"";position:fixed;inset:0;background-image:radial-gradient(rgba(216,248,255,.5) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(#000,transparent 78%);opacity:.18;z-index:-1;pointer-events:none}
button,input,select{font:inherit}
button{cursor:pointer}
.app-shell{width:min(1160px,calc(100% - 28px));margin:auto;padding:16px 0 30px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px;padding:13px 16px;border:1px solid var(--line);border-radius:19px;background:rgba(5,17,34,.82);backdrop-filter:blur(14px)}
.back-link{display:inline-flex;align-items:center;gap:8px;color:#d6e8ff;text-decoration:none;font-weight:800}.back-link:hover{color:var(--accent)}
.chapter-label{padding:7px 12px;border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);border-radius:99px;color:var(--accent);font-weight:900;background:color-mix(in srgb,var(--accent) 8%,transparent)}
.hud{display:grid;grid-template-columns:repeat(3,auto);gap:8px}.hud span{padding:7px 11px;border-radius:12px;background:rgba(255,255,255,.055);color:#dbeafe;font-weight:800}
.start-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);min-height:720px;overflow:hidden;border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);border-radius:30px;background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 8%,rgba(5,18,37,.95)),rgba(3,11,25,.96));box-shadow:0 34px 90px rgba(0,0,0,.42)}
.start-content{display:flex;flex-direction:column;justify-content:center;padding:clamp(30px,6vw,78px)}
.chapter-kicker{margin:0 0 14px;color:var(--accent);font-weight:900}.start-content h1{margin:0;font-size:clamp(2.4rem,6vw,5rem);line-height:1.08}.start-content h1 span{display:block;margin-top:10px;color:var(--accent);font-size:.58em}.story{max-width:670px;margin:22px 0;color:#c3ccda;font-size:1.08rem;font-weight:700;line-height:1.95}
.profile-form{display:grid;grid-template-columns:1fr 180px auto;gap:10px;margin-top:8px}.profile-form input,.profile-form select{width:100%;min-height:54px;border:1px solid rgba(255,255,255,.14);border-radius:16px;color:#fff;background:rgba(3,10,24,.72);padding:0 16px;outline:none}.profile-form input:focus,.profile-form select:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 13%,transparent)}.profile-form select option{background:#071426}.primary-btn{min-height:54px;border:0;border-radius:16px;padding:0 22px;color:#06101d;background:linear-gradient(135deg,var(--accent),var(--accent2));font-weight:1000;box-shadow:0 14px 30px color-mix(in srgb,var(--accent) 18%,transparent)}.primary-btn:hover{filter:brightness(1.08)}
.privacy-note{margin:13px 0 0;color:#7e8ca1;font-size:.84rem;line-height:1.7}.feature-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.feature-row span{padding:8px 12px;border-radius:99px;background:rgba(255,255,255,.055);color:#b8c4d6;font-weight:700;font-size:.84rem}
.guardian-panel{position:relative;min-height:680px;overflow:hidden;background:radial-gradient(circle at 50% 28%,color-mix(in srgb,var(--accent) 30%,transparent),transparent 45%),linear-gradient(180deg,rgba(8,19,49,.45),rgba(5,10,27,.92))}.guardian-panel:after{content:"";position:absolute;inset:auto 8% 9%;height:20%;border-radius:50%;background:color-mix(in srgb,var(--accent) 15%,transparent);filter:blur(34px)}.guardian-panel img{position:absolute;z-index:1;inset:3% 50% auto auto;width:105%;height:86%;object-fit:contain;transform:translateX(50%);filter:drop-shadow(0 25px 34px rgba(0,0,0,.55))}.guardian-quote{position:absolute;z-index:2;inset:auto 24px 26px;padding:19px;border:1px solid rgba(255,255,255,.12);border-radius:20px;background:rgba(4,12,29,.77);backdrop-filter:blur(14px);line-height:1.8;font-weight:700}.guardian-quote strong{display:block;color:var(--accent);margin-bottom:5px}
.game-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:16px}.journey-map{position:sticky;top:14px;align-self:start;padding:18px;border:1px solid var(--line);border-radius:24px;background:rgba(4,15,31,.88);backdrop-filter:blur(12px)}.journey-map h2{margin:0 0 16px;font-size:1rem;color:#dceaff}.station-list{list-style:none;margin:0;padding:0}.station{position:relative;display:grid;grid-template-columns:34px 1fr;align-items:center;gap:10px;padding:10px 0;color:#657389;font-weight:800;font-size:.86rem}.station:not(:last-child):after{content:"";position:absolute;right:16px;top:39px;width:2px;height:17px;background:rgba(255,255,255,.08)}.station i{display:grid;width:34px;height:34px;place-items:center;border:1px solid rgba(255,255,255,.11);border-radius:50%;font-style:normal;background:#071328}.station.active{color:var(--accent)}.station.active i{color:#07101d;border-color:var(--accent);background:var(--accent);box-shadow:0 0 18px color-mix(in srgb,var(--accent) 30%,transparent)}.station.done{color:#b7c3d4}.station.done i{color:#032117;border-color:var(--good);background:var(--good)}
.map-note{margin:18px 0 0;padding:12px;border-radius:15px;background:color-mix(in srgb,var(--accent) 7%,transparent);color:#98a8bd;font-size:.78rem;line-height:1.7}.progress-track{height:7px;margin-top:14px;overflow:hidden;border-radius:99px;background:rgba(255,255,255,.08)}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .35s ease}
.challenge-card{min-height:690px;padding:clamp(22px,4vw,44px);border:1px solid var(--line);border-radius:28px;background:linear-gradient(145deg,rgba(7,22,43,.94),rgba(3,12,28,.96));box-shadow:0 30px 70px rgba(0,0,0,.3)}
.challenge-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.phase-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:99px;color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,transparent);border:1px solid color-mix(in srgb,var(--accent) 24%,transparent);font-size:.86rem;font-weight:900}.question-count{color:#8797ad;font-weight:800}.challenge-card h1{margin:24px 0 8px;font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.45}.skill-name{margin:0 0 20px;color:var(--accent);font-weight:900}.question-math{margin:18px 0;padding:17px;border:1px solid rgba(255,255,255,.1);border-radius:17px;background:rgba(0,0,0,.2);font:700 clamp(1.1rem,3vw,1.55rem)/1.6 "Times New Roman",serif;text-align:center;direction:ltr;unicode-bidi:isolate}
.visual{display:grid;place-items:center;min-height:170px;margin:18px 0;padding:12px;border-radius:20px;background:radial-gradient(circle,rgba(255,255,255,.06),rgba(255,255,255,.018));border:1px solid rgba(255,255,255,.08)}.visual svg{width:min(100%,440px);height:180px}.visual .axis{stroke:#7386a0;stroke-width:1.5}.visual .shape{fill:none;stroke:var(--accent);stroke-width:4;stroke-linecap:round}.visual .shape2{fill:none;stroke:var(--accent2);stroke-width:3;stroke-linecap:round}.visual text{fill:#dcecff;font:700 13px Arial}.visual .dash{stroke-dasharray:6 6}
.answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-top:20px}.answer-btn{position:relative;min-height:62px;padding:13px 18px;border:1px solid rgba(255,255,255,.12);border-radius:17px;color:#edf6ff;background:rgba(255,255,255,.045);font-weight:800;line-height:1.6;text-align:right;transition:transform .15s,border-color .15s,background .15s}.answer-btn:hover:not(:disabled){transform:translateY(-2px);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,transparent)}.answer-btn:disabled{cursor:default}.answer-btn.correct{border-color:var(--good);background:rgba(82,224,161,.12)}.answer-btn.wrong{border-color:var(--bad);background:rgba(255,113,137,.12)}
.feedback{display:none;margin-top:16px;padding:17px 19px;border-radius:18px;line-height:1.8;font-weight:700}.feedback.show{display:block}.feedback.good{border:1px solid rgba(82,224,161,.38);background:rgba(82,224,161,.09)}.feedback.bad{border:1px solid rgba(255,113,137,.38);background:rgba(255,113,137,.09)}.feedback.neutral{border:1px solid color-mix(in srgb,var(--accent) 34%,transparent);background:color-mix(in srgb,var(--accent) 8%,transparent)}.feedback strong{display:block;margin-bottom:3px;font-size:1.03rem}.next-row{display:flex;justify-content:flex-end;margin-top:14px}.next-btn{display:none;min-height:50px;border:0;border-radius:15px;padding:0 24px;color:#07101d;background:linear-gradient(135deg,var(--accent),var(--accent2));font-weight:1000}.next-btn.show{display:inline-flex;align-items:center;gap:9px}
.phase-intro{text-align:center;display:grid;min-height:590px;place-content:center}.phase-orb{display:grid;width:100px;height:100px;margin:0 auto 20px;place-items:center;border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);border-radius:50%;font-size:2.7rem;background:color-mix(in srgb,var(--accent) 9%,transparent);box-shadow:0 0 55px color-mix(in srgb,var(--accent) 16%,transparent)}.phase-intro h1{margin:0;font-size:clamp(2rem,5vw,3.6rem)}.phase-intro p{max-width:670px;color:#afbdd0;line-height:1.9;font-weight:700}.phase-intro button{justify-self:center;margin-top:12px}
.result-card{padding:clamp(22px,4vw,45px);border:1px solid color-mix(in srgb,var(--accent) 28%,transparent);border-radius:28px;background:linear-gradient(145deg,rgba(8,24,46,.96),rgba(3,11,26,.97));box-shadow:0 30px 70px rgba(0,0,0,.35)}.result-hero{text-align:center}.result-medal{display:grid;width:112px;height:112px;margin:auto;place-items:center;border-radius:50%;font-size:3.3rem;background:linear-gradient(145deg,var(--gold),#ff9f43);box-shadow:0 0 60px rgba(255,209,102,.25)}.result-hero h1{margin:18px 0 7px;font-size:clamp(2rem,5vw,3.5rem)}.result-hero p{color:#aab8cc}.score-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:25px 0}.score-card{padding:18px 10px;border:1px solid rgba(255,255,255,.1);border-radius:17px;text-align:center;background:rgba(255,255,255,.035)}.score-card strong{display:block;color:var(--accent);font-size:1.7rem}.score-card span{color:#94a3b8;font-size:.82rem;font-weight:800}.skills-table{width:100%;border-collapse:separate;border-spacing:0 8px}.skills-table th{text-align:right;color:#8190a6;font-size:.8rem;padding:4px 12px}.skills-table td{padding:13px 12px;background:rgba(255,255,255,.04);font-weight:700}.skills-table td:first-child{border-radius:0 13px 13px 0}.skills-table td:last-child{border-radius:13px 0 0 13px}.status-good{color:var(--good)}.status-warn{color:var(--gold)}.status-bad{color:var(--bad)}
.recommendation{margin:18px 0;padding:17px;border-radius:16px;border:1px solid color-mix(in srgb,var(--accent) 23%,transparent);background:color-mix(in srgb,var(--accent) 7%,transparent);line-height:1.8}.result-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px}.ghost-btn{min-height:50px;padding:0 20px;border:1px solid rgba(255,255,255,.15);border-radius:15px;color:#e9f2ff;background:rgba(255,255,255,.045);font-weight:900;text-decoration:none;display:inline-flex;align-items:center}.certificate{margin-top:25px;padding:34px;border:2px solid var(--gold);outline:1px solid rgba(255,209,102,.25);outline-offset:-10px;border-radius:24px;text-align:center;background:radial-gradient(circle at center,rgba(255,209,102,.08),transparent 60%),#07162a}.certificate small{color:var(--gold);font-weight:900}.certificate h2{margin:13px 0;font-size:2rem}.certificate .student{display:inline-block;min-width:55%;padding:8px 16px;border-bottom:1px solid rgba(255,255,255,.25);color:#fff;font-size:1.5rem;font-weight:1000}.certificate p{color:#afbdd0;line-height:1.8}.certificate footer{display:flex;justify-content:space-between;gap:10px;margin-top:25px;color:#8392a8;font-weight:700;font-size:.84rem}
@media(max-width:850px){.start-layout{grid-template-columns:1fr}.guardian-panel{min-height:480px;grid-row:1}.start-content{grid-row:2;padding:30px 22px}.guardian-panel img{height:92%;width:92%}.profile-form{grid-template-columns:1fr}.game-layout{grid-template-columns:1fr}.journey-map{position:static}.station-list{display:flex;overflow:hidden}.station{min-width:34px;flex:1;grid-template-columns:1fr;padding:4px}.station span{display:none}.station:not(:last-child):after{right:calc(50% + 17px);top:20px;width:calc(100% - 34px);height:2px}.map-note{display:none}.challenge-card{min-height:0}.topbar{flex-wrap:wrap}.hud{width:100%;grid-template-columns:repeat(3,1fr)}.hud span{text-align:center}.score-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.app-shell{width:min(100% - 16px,520px);padding-top:8px}.topbar{border-radius:16px}.chapter-label{font-size:.78rem}.start-layout,.challenge-card,.result-card{border-radius:22px}.start-content h1{font-size:2.45rem}.guardian-panel{min-height:420px}.answers{grid-template-columns:1fr}.challenge-card{padding:21px 16px}.challenge-head{align-items:center}.challenge-card h1{font-size:1.45rem}.visual{min-height:150px}.visual svg{height:150px}.certificate{padding:28px 18px}.certificate footer{flex-direction:column}.skills-table{font-size:.83rem}.skills-table th,.skills-table td{padding:10px 8px}}
@media print{body{background:#fff;color:#111}body:before,body:after,.topbar,.result-hero,.score-cards,.skills-table,.recommendation,.result-actions{display:none!important}.app-shell{width:100%;padding:0}.result-card{padding:0;border:0;box-shadow:none;background:#fff}.certificate{display:block;margin:0;color:#111;background:#fff;border-color:#b58b25;page-break-inside:avoid}.certificate h2,.certificate .student{color:#111}.certificate p,.certificate footer{color:#333}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}