.percent-app{--pc-paper:#f0eee4;--pc-ink:#29352f;--pc-muted:#aebcab;--pc-lime:#d3e6ad;color:#e9eee3;background:radial-gradient(at 88% 12%,#4a3d6544,#0000 40%),radial-gradient(at 14% 45%,#314e4044,#0000 45%),#172229;min-height:100svh;padding:21px clamp(16px,4vw,56px) 35px;font-family:Arial,sans-serif}.pc-nav{border-bottom:1px solid #9cafa033;justify-content:space-between;align-items:center;gap:20px;max-width:1400px;margin-bottom:28px;padding-bottom:20px;font-size:14px;line-height:1.5;display:flex}.pc-nav a{color:#cadcc0;text-decoration:none}.pc-nav>span{letter-spacing:.14em;color:#a3b7a8;font-size:11px}.pc-header{justify-content:space-between;align-items:center;gap:35px;max-width:1400px;margin-bottom:27px;display:flex}.pc-header>div{max-width:850px}.pc-header>div>span{color:#c8d9ad;letter-spacing:.12em;align-items:center;gap:8px;font-size:11px;display:flex}.pc-header h1{letter-spacing:-.03em;margin:13px 0 14px;font-size:clamp(32px,4vw,50px);font-weight:600;line-height:1.15}.pc-header p{color:#b8c8b4;max-width:840px;margin:0;font-size:16px;line-height:1.7}.pc-header-mark{color:#d1deae;background:#bbcf8a0c;border:1px solid #b3c49755;border-radius:28px;flex:0 0 102px;place-items:center;width:102px;height:102px;display:grid;transform:rotate(9deg)}.pc-header-mark svg{width:38px;height:38px;transform:rotate(-9deg)}.pc-layout{grid-template-columns:270px minmax(0,1fr);align-items:start;gap:24px;max-width:1400px;display:grid}.pc-sidebar{background:#23362d;border:1px solid #93a79144;border-radius:13px;padding:21px;position:sticky;top:20px}.pc-sidebar h2{color:#dee8d1;margin:0 0 17px;font-size:19px;line-height:1.4}.pc-route{gap:11px;margin:0;padding:0;list-style:none;display:grid}.pc-route li{min-width:0}.pc-route button{text-align:left;color:#c4d4b8;cursor:pointer;background:#192e25;border:1px solid #91a58044;border-radius:9px;align-items:start;gap:10px;width:100%;min-height:69px;padding:13px 11px;display:flex}.pc-route button[aria-current=step]{color:#233e28;background:#cfdfb5;border-color:#e1ebca}.pc-route-number{flex:0 0 22px;place-items:center;width:22px;height:25px;font-size:14px;line-height:1.5;display:grid}.pc-route strong{font-size:14px;font-weight:600;line-height:1.45;display:block}.pc-route small{opacity:.75;margin-top:5px;font-size:14px;line-height:1.6;display:block}.pc-route-note{color:#a4ba9b;margin:15px 0 0;font-size:14px;line-height:1.7}.pc-progress{border-top:1px solid #91ab7b44;margin-top:20px;padding-top:18px}.pc-progress>div{color:#c2d4b0;justify-content:space-between;align-items:center;gap:15px;margin-bottom:12px;font-size:14px;display:flex}.pc-progress progress{-webkit-appearance:none;appearance:none;color:#c5d89f;background:#11291f;border:0;border-radius:8px;width:100%;height:7px;display:block;overflow:hidden}.pc-progress progress::-webkit-progress-bar{background:#11291f}.pc-progress progress::-webkit-progress-value{background:#c5d89f}.pc-progress progress::-moz-progress-bar{background:#c5d89f}.pc-progress p{color:#a7bd9f;margin:12px 0 0;font-size:14px;line-height:1.7}.pc-main{min-width:0}.pc-theory,.pc-reference{color:#2c3d30;background:#e8ecdf;border:1px solid #d2dec7;border-radius:13px;margin-bottom:20px;padding:25px 28px}.pc-theory summary{cursor:pointer;color:#30432f;margin-left:17px;padding-left:3px;font-size:21px;font-weight:600;line-height:1.4;list-style-position:outside}.pc-theory-body{margin-top:21px}.pc-theory p,.pc-reference p{color:#4d5b48;margin:0 0 12px;font-size:16px;line-height:1.75}.pc-example{background:#f5f4eb;border-left:3px solid #94b070;border-radius:0 8px 8px 0;margin-top:19px;padding:19px 22px}.pc-example h3{text-transform:uppercase;letter-spacing:.06em;color:#5c7647;margin:0 0 10px;font-size:14px;line-height:1.5}.pc-example .pc-problem{color:#334a31;margin-bottom:13px;font-size:16px;font-weight:600;line-height:1.7}.pc-example ol{color:#475b40;margin:0;padding-left:20px;font-size:16px;line-height:1.75}.pc-example li+li{margin-top:7px}.pc-bars{border-top:1px solid #bac8a888;gap:12px;margin-top:18px;padding-top:17px;display:grid}.pc-bar>div:first-child{color:#4d6541;justify-content:space-between;gap:15px;margin-bottom:7px;font-size:14px;line-height:1.6;display:flex}.pc-bar-track{background:#dce5d1;border-radius:5px;height:10px;overflow:hidden}.pc-bar-track>span{background:#819c5d;border-radius:5px;height:100%;display:block}.pc-reference{background:#edf0e4;border:2px solid #b2c292}.pc-reference-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:16px;display:flex}.pc-reference h2{letter-spacing:-.01em;margin:0;font-size:23px;line-height:1.35}.pc-reference-header>button{cursor:pointer;color:#476039;background:#dde6d0;border:1px solid #9bb286;border-radius:7px;place-items:center;min-width:42px;min-height:42px;display:grid}.pc-reference>small{color:#637459;margin-bottom:15px;font-size:14px;line-height:1.6;display:block}.pc-exercise{background:var(--pc-paper);color:var(--pc-ink);border:1px solid #dde1d1;border-radius:14px;padding:29px 30px}.pc-question-top{color:#657858;justify-content:space-between;align-items:center;gap:15px;margin-bottom:14px;font-size:14px;line-height:1.6;display:flex}.pc-question-top span:last-child{color:#536f49;background:#e3e9d7;border:1px solid #aaba9977;border-radius:5px;padding:4px 8px}.pc-exercise h2{letter-spacing:-.02em;color:#2c3b2c;margin:0 0 15px;font-size:29px;line-height:1.28}.pc-prompt{color:#44513d;max-width:800px;margin:0 0 23px;font-size:18px;line-height:1.75}.pc-options{border:0;gap:11px;min-width:0;margin:0;padding:0;display:grid}.pc-options legend{color:#5b7050;margin-bottom:13px;padding:0;font-size:14px;font-weight:600}.pc-options label{color:#394c31;cursor:pointer;background:#f8f7f0;border:1px solid #b4c09e;border-radius:9px;align-items:center;gap:13px;min-height:57px;padding:15px 17px;font-size:16px;line-height:1.65;display:flex}.pc-options label[data-selected=true]{background:#e0e9cf;border-color:#7e9b60;box-shadow:inset 0 0 0 1px #7e9b60}.pc-options input{accent-color:#67884a;flex:0 0 19px;width:19px;height:19px}.pc-options:disabled label{cursor:default}.pc-options label[data-correct=true]{background:#dce8cc;border-color:#739755}.pc-options label[data-wrong=true]{background:#ede2cd;border-color:#b89565}.pc-check{width:100%;margin-top:21px}.pc-primary,.pc-secondary{cursor:pointer;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:12px 17px;font-size:14px;font-weight:600;line-height:1.5;display:inline-flex}.pc-primary{color:#f0f2df;background:#384f32}.pc-secondary{color:#3e5833;background:#e1e8d4;border-color:#a5b88b}.pc-feedback{border-top:1px solid #a7b59477;margin-top:23px;padding-top:23px}.pc-feedback h3{color:#3d5932;margin:0 0 13px;font-size:23px;line-height:1.35}.pc-feedback p{color:#4b5e40;margin:0 0 14px;font-size:16px;line-height:1.75}.pc-feedback ol{color:#4d5e42;margin:15px 0 21px;padding-left:22px;font-size:16px;line-height:1.75}.pc-feedback li+li{margin-top:6px}.pc-feedback .pc-primary{width:100%}.pc-feedback .pc-answer{color:#3e5833;background:#e2e9d6;border-radius:8px;padding:13px 16px}.pc-review-notice{color:#c5d9b6;background:#354b3655;border:1px solid #aabe8e66;border-radius:10px;margin-bottom:20px;padding:16px 20px;font-size:14px;line-height:1.7}.pc-final{background:var(--pc-paper);color:var(--pc-ink);border:1px solid #dde1d1;border-radius:14px;padding:30px}.pc-final-heading{justify-content:space-between;align-items:start;gap:25px;display:flex}.pc-final-heading>div>span{color:#74865c;letter-spacing:.1em;font-size:12px;line-height:1.6}.pc-final h2{letter-spacing:-.025em;margin:11px 0 16px;font-size:32px;line-height:1.25}.pc-final>p,.pc-final-heading p{color:#526445;margin:0 0 20px;font-size:16px;line-height:1.8}.pc-primary-score{color:#52703e;white-space:nowrap;font-size:58px;line-height:1.1}.pc-primary-score>span{color:#93a67b;font-size:28px}.pc-final-actions{flex-wrap:wrap;gap:12px;margin:23px 0;display:flex}.pc-review-score{color:#426036;background:#e1e9d3;border:1px solid #b4c49c;border-radius:9px;margin:18px 0;padding:18px;font-size:16px;line-height:1.7}.pc-review-score strong{margin-bottom:5px;display:block}.pc-review-list{border-top:1px solid #b3c19977;margin-top:23px;padding-top:23px}.pc-review-list>h3{color:#425c35;margin:0 0 18px;font-size:22px;line-height:1.4}.pc-review-list>p{color:#697b57;margin:0 0 17px;font-size:14px;line-height:1.7}.pc-review-list details{background:#f6f6ee;border:1px solid #bdc9a8;border-radius:9px;margin-top:11px;overflow:hidden}.pc-review-list summary{cursor:pointer;color:#405535;padding:15px 18px;font-size:16px;font-weight:600;line-height:1.55;list-style-position:inside}.pc-review-list summary>span{color:#748663;margin-right:9px;font-size:14px;font-weight:400}.pc-review-answer{padding:2px 19px 20px}.pc-review-answer p,.pc-review-answer li{color:#536547;margin:11px 0;font-size:16px;line-height:1.75}.pc-review-answer ol{margin-bottom:0;padding-left:22px}.pc-footer{border-top:1px solid #94aa8e44;justify-content:space-between;align-items:start;gap:25px;max-width:1400px;margin-top:27px;padding-top:23px;display:flex}.pc-footer>p{color:#a9bc9f;max-width:790px;margin:0;font-size:14px;line-height:1.8}.pc-reset{max-width:410px}.pc-reset>.pc-secondary{color:#d5e4c2;background:#2d4934;border-color:#9bb68677}.pc-reset fieldset{color:#455e36;background:#e7ecd9;border:1px solid #afc28d;border-radius:10px;min-width:0;margin:0;padding:17px}.pc-reset p{margin:0 0 14px;font-size:14px;line-height:1.7}.pc-reset fieldset>div{flex-wrap:wrap;gap:9px;display:flex}.percent-app button:disabled{opacity:.48;cursor:not-allowed}.percent-app :is(a,button,input,summary):focus-visible{outline-offset:4px;outline:3px solid #a1bd69}.pc-exercise h2:focus,.pc-feedback h3:focus,.pc-final h2:focus,.pc-reference h2:focus{outline:0}.pc-reduced *{scroll-behavior:auto!important;transition:none!important;animation:none!important}@media (max-width:1100px){.pc-layout{grid-template-columns:230px minmax(0,1fr);gap:19px}.pc-sidebar{padding:18px}.pc-header h1{font-size:43px}.pc-header-mark{flex-basis:88px;width:88px;height:88px}.pc-exercise,.pc-final{padding:26px}.pc-theory,.pc-reference{padding:23px}.pc-route button{gap:8px;padding:12px 9px}.pc-nav>span{display:none}}@media (max-width:800px){.pc-layout{grid-template-columns:minmax(0,1fr)}.pc-sidebar{padding:21px;position:static}.pc-route{grid-template-columns:1fr 1fr;gap:10px}.pc-route button{height:100%;padding:13px}.pc-progress{grid-template-columns:1fr 1fr;align-items:center;gap:0 20px;display:grid}.pc-progress>div{margin:0}.pc-progress p{grid-column:1/-1}.pc-header-mark{display:none}.pc-header h1{font-size:40px}.pc-footer{flex-direction:column}.pc-final-heading{gap:20px}.pc-primary-score{font-size:50px}}@media (max-width:480px){.percent-app{padding:18px 16px 28px}.pc-nav{gap:15px;margin-bottom:25px;font-size:14px}.pc-header h1{font-size:35px}.pc-header>div>span{font-size:10px}.pc-header p{font-size:16px}.pc-sidebar{padding:19px}.pc-route{gap:8px}.pc-route button{gap:6px;min-height:92px;padding:12px 9px}.pc-route-number{flex-basis:17px;width:17px}.pc-route strong,.pc-route small,.pc-route-note{font-size:14px}.pc-progress{display:block}.pc-progress>div{margin-bottom:12px}.pc-progress p{font-size:14px}.pc-theory,.pc-reference{padding:22px 19px}.pc-theory summary{font-size:20px}.pc-example{padding:16px 17px}.pc-theory p,.pc-reference p,.pc-example ol{font-size:16px}.pc-exercise,.pc-final{padding:24px 20px}.pc-exercise h2{font-size:27px}.pc-prompt{font-size:17px}.pc-question-top{flex-direction:column;align-items:start;gap:10px}.pc-options label{gap:11px;padding:13px 14px}.pc-feedback h3{font-size:22px}.pc-final-heading{flex-direction:column;gap:5px}.pc-final h2{font-size:29px}.pc-primary-score{margin:0 0 16px;font-size:54px}.pc-final-actions{flex-direction:column}.pc-final-actions button{width:100%}.pc-review-list summary{padding:14px 15px}.pc-review-answer{padding:0 16px 17px}.pc-reference-header{align-items:start;gap:13px}.pc-reference h2{font-size:22px}.pc-reset,.pc-reset>.pc-secondary{width:100%}}@media (prefers-reduced-motion:reduce){.percent-app *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.pc-about{max-width:790px}.pc-about p{color:#a9bc9f;margin:0 0 13px;font-size:14px;line-height:1.8}.pc-about a{color:#d1e0bb;text-underline-offset:4px}.pc-course-reset-confirm{color:#4a385a;background:#f2edf4;border:1px solid #baa6cb;border-radius:12px;min-width:0;max-width:1400px;margin:22px 0 0;padding:22px}.pc-course-reset-confirm legend{background:#f2edf4;border-radius:5px;padding:0 8px;font-size:19px;line-height:1.5}.pc-course-reset-confirm p{margin:0 0 17px;font-size:16px;line-height:1.75}.pc-course-reset-confirm>div{flex-wrap:wrap;gap:10px;display:flex}@media (max-width:480px){.pc-course-reset-confirm{padding:19px 16px}.pc-course-reset-confirm>div{grid-template-columns:minmax(0,1fr);display:grid}}