:root{--primary:#7c5cfc;--correct:#2fbf8f;--wrong:#ff7a5c;--bg-color:#f3f0ff;--surface:#fff;--surface-hover:#f2f4f6;--text-main:#1c2b3a;--text-sub:#6b7684;--brand:var(--primary);--incorrect:var(--wrong);--ink:var(--text-main);--muted:var(--text-sub);--radius:16px;--shadow:0 4px 20px rgba(0,0,0,.05)}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans KR,sans-serif;color:var(--text-main);background:var(--bg-color)}button{font:inherit;cursor:pointer}.timer-bar-container{width:100%;height:6px;background:rgba(124,92,252,.15);position:relative;z-index:20;overflow:hidden;flex-shrink:0;border-radius:3px;margin-bottom:10px}.timer-bar-fill{height:100%;background-color:var(--primary);border-radius:0 3px 3px 0;will-change:width}.timer-bar-fill.danger{background-color:var(--wrong);animation:timer-pulse .6s ease-in-out infinite}@keyframes timer-pulse{0%,to{opacity:1}50%{opacity:.35}}.toast-container{position:absolute;top:14px;left:0;width:100%;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;z-index:30}.toast-msg{background:var(--text-main);color:#fff;padding:10px 20px;border-radius:24px;font-size:14px;font-weight:700;box-shadow:0 4px 12px rgba(0,0,0,.15);transform:translateY(-20px);opacity:0;transition:all .4s cubic-bezier(.175,.885,.32,1.275);white-space:nowrap}.toast-msg.show{transform:translateY(0);opacity:1}.hud{display:flex;justify-content:space-between;align-items:center;padding:2px 2px 8px;gap:8px;flex-shrink:0}.hud-score{font-size:18px;font-weight:800;color:var(--text-main);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.hud-right{display:flex;align-items:center;gap:8px}.hud-combo{font-size:14px;font-weight:800;color:var(--wrong);background:rgba(255,122,92,.12);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.hud-combo,.hud-level{padding:6px 12px;border-radius:20px}.hud-level{font-size:14px;font-weight:700;color:var(--primary);background:rgba(124,92,252,.1)}.question-title{font-size:clamp(15px,3.8vh,18px);font-weight:800;color:var(--text-main);line-height:1.3;letter-spacing:-.02em;margin:2px 0 10px;word-break:keep-all;flex-shrink:0}.options-container{display:flex;flex-direction:column;gap:clamp(7px,1.2vh,10px);flex:0 0 auto}.option-btn{width:100%;min-height:clamp(44px,6.2vh,56px);padding:9px 14px;background:var(--surface);border:2px solid #eceaf6;border-radius:13px;color:var(--text-main);font-size:clamp(13.5px,3.3vh,15px);font-weight:600;text-align:left;box-shadow:0 2px 8px rgba(0,0,0,.04);transition:background .2s ease,border-color .2s ease;display:flex;justify-content:space-between;align-items:center;gap:12px}.option-btn:not(:disabled):hover{background:var(--surface-hover)}.option-btn:disabled{cursor:default}.option-btn.correct{border-color:var(--correct)}.option-btn.wrong{border-color:var(--wrong);animation:shake .4s ease}.option-icon{font-size:18px;line-height:1;flex-shrink:0}@keyframes shake{0%,to{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}.tip-card{margin-top:10px;flex-shrink:0;background:var(--text-main);color:#fff;padding:14px 16px;border-radius:16px;box-shadow:0 4px 16px rgba(0,0,0,.18);animation:slide-up .4s cubic-bezier(.175,.885,.32,1.275)}.tip-status{font-size:14px;font-weight:800}.tip-status.correct{color:var(--correct)}.tip-status.wrong{color:var(--wrong)}.tip-title{font-weight:800;font-size:16px;margin:10px 0 8px;color:var(--correct)}.tip-desc{font-size:14px;line-height:1.5;opacity:.92;margin:0}.tip-source{display:block;margin-top:12px;font-size:12px;color:hsla(0,0%,100%,.55)}@keyframes slide-up{0%{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}.btn-primary{width:100%;min-height:56px;padding:16px 20px;border:none;border-radius:16px;background:var(--primary);color:#fff;font-size:16px;font-weight:800;box-shadow:0 6px 18px rgba(124,92,252,.35);transition:transform .15s ease,box-shadow .15s ease}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(124,92,252,.42)}.btn-primary:active{transform:translateY(0)}.app-shell{max-width:480px;margin:0 auto;height:100dvh;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-color)}.app-header{flex-shrink:0;text-align:center;padding:clamp(8px,1.4vh,14px) 20px 4px}.app-title{font-size:clamp(18px,2.7vh,22px);font-weight:800;letter-spacing:-.02em;margin:0}.play-shell{position:relative;flex:1 1 auto;min-height:0;display:flex;flex-direction:column;padding:4px 16px 14px;overflow:hidden}.quiz-card,.result-card{flex:1 1 auto;min-height:0;overflow:hidden;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.quiz-card{position:relative;padding:14px 16px;overflow-y:auto}.quiz-card,.result-card{display:flex;flex-direction:column}.result-card{padding:28px 24px;text-align:center;justify-content:center}.start-emblem{font-size:clamp(48px,9vh,72px);line-height:1;margin-bottom:8px}.start-card{padding:clamp(12px,2vh,22px) clamp(18px,5vw,24px);justify-content:flex-start;gap:0;overflow-y:auto}.start-card .start-emblem{font-size:clamp(34px,5.4vh,56px);margin-bottom:clamp(2px,.8vh,6px)}.start-tagline{color:var(--text-sub);font-weight:600;font-size:clamp(13px,1.9vh,15px);margin:0 0 clamp(10px,2vh,16px)}.guide-block{width:100%;margin:0 0 clamp(14px,2.4vh,20px)}.guide-heading{font-size:clamp(10px,1.5vh,12px);font-weight:800;letter-spacing:.06em;color:var(--text-sub);text-transform:uppercase;text-align:center;margin-bottom:clamp(8px,1.4vh,12px)}.guide-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:clamp(6px,1.1vh,10px);text-align:left}.guide-item{gap:clamp(10px,2.5vw,14px);padding:clamp(8px,1.3vh,12px) clamp(10px,3vw,14px);background:rgba(124,92,252,.05);border:1.5px solid rgba(124,92,252,.12);border-radius:14px;box-shadow:0 2px 10px rgba(124,92,252,.05)}.guide-badge,.guide-item{display:flex;align-items:center}.guide-badge{flex-shrink:0;width:clamp(34px,5.6vh,44px);height:clamp(34px,5.6vh,44px);justify-content:center;font-size:clamp(17px,2.9vh,22px);line-height:1;border-radius:50%;background:var(--surface);box-shadow:0 2px 6px rgba(124,92,252,.12)}.guide-text{display:flex;flex-direction:column;gap:1px;min-width:0}.guide-title{font-size:clamp(13px,1.9vh,15px);font-weight:800;color:var(--text-main);letter-spacing:-.01em;word-break:keep-all}.guide-desc{font-size:clamp(11px,1.6vh,13px);font-weight:600;color:var(--text-sub);line-height:1.3;word-break:keep-all}.career-strip{display:flex;align-items:center;gap:8px;padding:0 2px 8px;flex-shrink:0}.career-lv{font-size:12px;font-weight:800;color:var(--primary);background:rgba(124,92,252,.1);padding:3px 8px;border-radius:10px;white-space:nowrap}.career-bar{flex:1 1 auto;height:8px;background:rgba(124,92,252,.14);border-radius:4px;overflow:hidden}.career-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),#a48bff);border-radius:4px;transition:width .5s cubic-bezier(.22,1,.36,1)}.career-next{font-size:11px;font-weight:700;color:var(--text-sub);white-space:nowrap}.retry-badge{font-size:12px;font-weight:800;color:var(--wrong);background:rgba(255,122,92,.12);padding:4px 10px;border-radius:14px;align-self:flex-start;margin-bottom:6px}.career-summary{display:flex;justify-content:center;align-items:baseline;gap:8px;margin:0 0 12px}.career-summary .cs-lv{font-size:14px;font-weight:800;color:var(--primary)}.career-summary .cs-pt{font-size:13px;font-weight:700;color:var(--text-sub);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.tier-map{margin:2px 0 clamp(8px,1.6vh,14px)}.tier-map-title{font-size:11px;font-weight:800;color:var(--text-sub);letter-spacing:.04em;text-align:center;margin-bottom:clamp(5px,1vh,8px)}.tier-list{display:flex;flex-wrap:wrap;justify-content:center;gap:5px}.tier-chip{display:flex;flex-direction:column;align-items:center;gap:1px;min-width:54px;padding:clamp(5px,1vh,8px) 6px;border-radius:12px;background:rgba(124,92,252,.08);border:1.5px solid rgba(124,92,252,.25)}.tier-chip .tier-name{font-size:12px;font-weight:800;color:var(--primary)}.tier-chip.locked{background:var(--surface-hover);border-color:#e2e2e8;filter:grayscale(.4)}.tier-chip.locked .tier-name{color:var(--text-sub);filter:blur(1px);opacity:.7}.tier-chip .tier-lock{font-size:9px;font-weight:700;color:var(--text-sub);white-space:nowrap}.btn-retry{width:100%;min-height:48px;margin-top:10px;padding:12px 18px;border:2px solid var(--wrong);border-radius:16px;background:rgba(255,122,92,.08);color:var(--wrong);font-size:15px;font-weight:800;transition:background .15s ease}.btn-retry:hover{background:rgba(255,122,92,.16)}.levelup-overlay{position:absolute;inset:0;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;background:rgba(28,43,58,.72);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);border-radius:var(--radius);pointer-events:none;animation:levelup-in .35s cubic-bezier(.175,.885,.32,1.275)}.levelup-emblem{font-size:64px;line-height:1;animation:levelup-pop .6s ease}.levelup-title{font-size:24px;font-weight:900;color:#fff}.levelup-sub{font-size:15px;font-weight:700;color:var(--correct)}.levelup-unlock{margin-top:4px;font-size:13px;font-weight:700;color:#ffd76b}@keyframes levelup-in{0%{opacity:0}to{opacity:1}}@keyframes levelup-pop{0%{transform:scale(.4);opacity:0}60%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}