:root {
  --gold:#ffd675; --cream:#fff5dc; --red:#b01d20; --deep:#350607;
  --panel:rgba(54,6,7,.91); --soft:rgba(255,245,220,.075); --line:rgba(255,214,117,.34);
  --bg:url('concepts/assets/imperial.png'); --shadow:rgba(20,0,0,.42);
  --serif:Georgia,'Times New Roman',serif; --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}[hidden]{display:none!important}button{font:inherit}body{margin:0;background:#210303;color:var(--cream);font-family:var(--sans)}
.app-shell{position:relative;min-height:100vh;overflow-x:hidden;background-image:linear-gradient(90deg,rgba(34,2,3,.47),rgba(34,2,3,.06)),var(--bg);background-size:cover;background-position:center;transition:background-image .5s ease}
.paper-noise{position:absolute;inset:0;pointer-events:none;opacity:.45;background:radial-gradient(circle at 55% 32%,transparent 0 22%,rgba(10,0,0,.25) 95%),repeating-linear-gradient(90deg,transparent 0 111px,rgba(255,230,170,.025) 112px)}
.topbar{position:relative;z-index:5;height:80px;padding:0 2.2vw;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:14px}.brand-seal{width:46px;height:46px;display:grid;place-items:center;border:1px solid var(--gold);transform:rotate(45deg)}.brand-seal i{font:normal 24px var(--serif);transform:rotate(-45deg);color:var(--gold)}
.brand strong{display:block;font:500 19px var(--serif)}.brand small{display:block;margin-top:2px;opacity:.6;font-size:9px;letter-spacing:.22em;text-transform:uppercase}
.top-actions{display:flex;gap:9px;align-items:center}.utility,.counter{color:var(--cream);background:rgba(20,0,0,.42);border:1px solid var(--line);border-radius:99px;padding:9px 13px;font-size:11px;letter-spacing:.06em;backdrop-filter:blur(8px)}.utility span{color:var(--gold);margin-right:5px}.utility b,.counter{font-weight:500}.counter b{color:var(--gold);font-size:14px;margin-right:4px}
.quiz-layout{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,41fr) minmax(0,59fr);gap:16px;width:min(1540px,calc(100vw - 48px));margin:20px auto 100px;align-items:stretch}
.visual-card{position:relative;min-height:clamp(560px,calc(100vh - 150px),760px);overflow:hidden;border:1px solid var(--line);background-image:linear-gradient(180deg,rgba(40,0,0,.05),rgba(35,0,0,.8)),var(--bg);background-size:auto 100vh;background-position:left center;box-shadow:0 28px 90px var(--shadow)}
.visual-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.88) contrast(1.04) brightness(.72);transition:opacity .25s ease}.visual-card:has(img[src=''])>img{opacity:0}
.visual-card:before,.visual-card:after{content:'';position:absolute;width:80px;height:80px;border-top:1px solid var(--gold);border-left:1px solid var(--gold);top:12px;left:12px;opacity:.55}.visual-card:after{inset:auto 12px 12px auto;transform:rotate(180deg)}
.visual-glow{position:absolute;z-index:1;inset:0;background:linear-gradient(180deg,rgba(25,0,0,.04) 25%,rgba(25,0,0,.84) 100%),radial-gradient(circle at 50% 42%,rgba(255,210,110,.12),transparent 35%)}
.visual-symbol{position:absolute;z-index:2;inset:28px 28px auto auto;font:58px/1 var(--serif);color:var(--gold);opacity:.82;text-shadow:0 12px 45px rgba(0,0,0,.55)}
.visual-caption{position:absolute;z-index:2;left:30px;right:30px;bottom:29px;padding-top:15px;border-top:1px solid var(--line)}.visual-caption span{display:block;color:var(--gold);font-size:9px;letter-spacing:.22em}.visual-caption strong{display:block;margin-top:6px;font:400 23px/1.08 var(--serif)}
.question-card{position:relative;min-height:clamp(560px,calc(100vh - 150px),760px);padding:34px 48px;background:var(--panel);border:1px solid var(--line);box-shadow:0 28px 90px var(--shadow);backdrop-filter:blur(17px)}
.question-card:before,.question-card:after{content:'';position:absolute;width:60px;height:60px;top:10px;left:10px;border-top:1px solid var(--gold);border-left:1px solid var(--gold);opacity:.65}.question-card:after{inset:auto 10px 10px auto;transform:rotate(180deg)}
.question-meta{display:flex;align-items:center;color:var(--gold);font-size:9px;letter-spacing:.18em}
.question-index{margin:28px 0 8px;color:var(--gold);font-size:10px;letter-spacing:.2em}.question-index b{font-weight:600}.question-index span{opacity:.5}.question-index i{font-style:normal}
h1{margin:0;font:400 clamp(30px,3vw,43px)/1.09 var(--serif);text-wrap:balance}.options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:27px}
.option{display:flex;align-items:center;min-height:62px;padding:10px 13px;text-align:left;color:var(--cream);background:var(--soft);border:1px solid rgba(255,245,220,.16);transition:.18s ease}.option:hover,.option.selected{transform:translateY(-1px);border-color:var(--gold);background:rgba(255,214,117,.12)}.option.correct{border-color:#ffd675;background:rgba(255,214,117,.18)}.option.wrong{opacity:.42}.option b{flex:0 0 34px;height:34px;display:grid;place-items:center;margin-right:11px;color:var(--gold);border:1px solid var(--line);font:600 15px var(--serif)}.option span{font-size:13px;line-height:1.28}
.reveal{margin-top:16px;padding:16px 18px 17px;background:rgba(255,214,117,.1);border-left:3px solid var(--gold);scroll-margin-bottom:92px;animation:reveal .28s ease both}.answer-heading{display:flex;gap:13px;align-items:center}.answer-heading>span{flex:0 0 37px;height:37px;display:grid;place-items:center;border-radius:50%;background:var(--gold);color:var(--deep);font-weight:800}.answer-heading small{display:block;color:var(--gold);font-size:8px;letter-spacing:.16em}.answer-heading strong{display:block;margin-top:3px;font:400 17px/1.15 var(--serif)}.reveal>p{margin:10px 0 0 50px;opacity:.78;font-size:12px;line-height:1.42}
.vote-block{margin:14px 0 0 50px;padding-top:13px;border-top:1px solid rgba(255,255,255,.11)}.vote-block p{margin:0 0 9px;font:400 15px var(--serif)}.vote-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.vote-buttons button{min-height:42px;padding:8px 7px;color:var(--cream);background:rgba(0,0,0,.2);border:1px solid rgba(255,255,255,.17);font-size:10px;line-height:1.15}.vote-buttons button span{display:block;margin-bottom:2px;font-size:13px}.vote-buttons button[data-vote=hard] span{color:#e18475}.vote-buttons button[data-vote=medium] span{color:var(--gold)}.vote-buttons button[data-vote=easy] span{color:#95cf9d}.vote-buttons button[data-vote=reject] span{color:#a8a39d}.vote-buttons button.active{background:var(--gold);color:var(--deep);border-color:var(--gold)}.vote-buttons button.active span{color:var(--deep)}
.bottombar{position:fixed;z-index:8;left:50%;bottom:18px;transform:translateX(-50%);display:flex;align-items:center;gap:18px;padding:7px 12px;border-radius:99px;background:rgba(23,3,3,.38);backdrop-filter:blur(10px)}.nav-arrow{width:46px;height:46px;border-radius:50%;color:var(--gold);background:rgba(20,0,0,.52);border:1px solid var(--line);font-size:20px}.nav-arrow:disabled{opacity:.3}.progress-wrap{width:min(380px,40vw);text-align:center}.progress-track{height:2px;background:rgba(255,255,255,.17);overflow:hidden}.progress-track i{display:block;height:100%;width:2%;background:var(--gold);transition:width .25s ease}.progress-wrap span{display:block;margin-top:8px;font-size:9px;letter-spacing:.1em;color:rgba(255,255,255,.62)}
.results-view{position:relative;z-index:3;width:min(1320px,calc(100vw - 48px));min-height:600px;margin:20px auto 100px;padding:45px;background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(18px)}.results-kicker{color:var(--gold);letter-spacing:.2em;font-size:10px}.results-view h1{font-size:46px}.selection-hint{margin:8px 0 0;opacity:.72;font-size:13px}.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:30px 0}.stats div{padding:16px;background:var(--soft);border:1px solid rgba(255,255,255,.12)}.stats b{display:block;color:var(--gold);font:34px var(--serif)}.stats span{font-size:10px;opacity:.7}.category-groups{display:grid;gap:18px}.category-group{padding:17px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.1)}.category-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 11px;color:var(--gold);font:400 22px var(--serif)}.category-heading span{font:10px/1.2 var(--sans);letter-spacing:.12em;text-transform:uppercase;opacity:.72}.selected-list{display:grid;grid-template-columns:1fr 1fr;gap:8px}.selected-item{position:relative;width:100%;padding:11px 39px 11px 13px;text-align:left;color:var(--cream);background:rgba(255,255,255,.055);border:0;border-left:2px solid var(--gold);font:12px/1.3 var(--sans);cursor:pointer;transition:.16s ease}.selected-item:hover{background:rgba(255,214,117,.12);transform:translateY(-1px)}.selected-item.is-final{color:#210202;background:var(--gold);border-left-color:#fff3bf;font-weight:700}.selected-item b{color:var(--gold);margin-right:6px}.selected-item.is-final b{color:#68120d}.selection-mark{position:absolute;right:12px;top:50%;display:grid;place-items:center;width:20px;height:20px;transform:translateY(-50%);border:1px solid rgba(255,255,255,.35);border-radius:50%;font-size:12px;line-height:1}.selected-item.is-final .selection-mark{border-color:#68120d;background:#68120d;color:var(--gold)}.empty{opacity:.65}.results-actions{display:flex;gap:9px;margin-top:24px}.results-actions button,.launch-quiz{padding:12px 16px;color:var(--cream);background:rgba(0,0,0,.25);border:1px solid var(--line);text-decoration:none}.results-actions .primary{background:var(--gold);color:var(--deep)}
body[data-theme=hainan]{--gold:#ffd57f;--cream:#fff8e7;--deep:#063536;--panel:rgba(5,53,53,.9);--soft:rgba(255,255,255,.075);--line:rgba(255,213,127,.38);--bg:url('concepts/assets/hainan.png');--shadow:rgba(0,26,28,.46)}body[data-theme=hainan] .question-card,body[data-theme=hainan] .visual-card{border-radius:20px}body[data-theme=hainan] .option,body[data-theme=hainan] .reveal,body[data-theme=hainan] .vote-buttons button{border-radius:11px}body[data-theme=hainan] .option b{border-radius:8px;background:rgba(177,52,40,.72);color:#fff;border-color:rgba(255,255,255,.18)}
@keyframes reveal{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(max-width:1150px) and (min-width:901px){.quiz-layout{grid-template-columns:minmax(0,36fr) minmax(0,64fr);width:calc(100vw - 30px)}.question-card{padding:30px 34px}}
@media(max-width:900px){.topbar{height:auto;min-height:78px;padding:15px 18px}.brand strong{font-size:16px}.brand-seal{width:38px;height:38px}.counter{display:none}.utility b{display:none}.quiz-layout{grid-template-columns:1fr;width:calc(100vw - 28px);margin:16px 14px 110px;gap:10px}.visual-card{min-height:180px;background-size:cover}.visual-symbol{font-size:90px}.visual-caption{left:20px;bottom:18px}.question-card{min-height:0;padding:27px 20px}.options{grid-template-columns:1fr;margin-top:20px}.reveal>p,.vote-block{margin-left:0}.vote-buttons{grid-template-columns:1fr 1fr}.bottombar{bottom:18px}.progress-wrap{width:55vw}.results-view{width:calc(100vw - 28px);margin:16px 14px 110px;padding:28px 20px}.stats{grid-template-columns:1fr 1fr}.selected-list{grid-template-columns:1fr}.results-view h1{font-size:36px}}