:root{--accent:#dc6655;--accent-dark:#a33d31;--ink:#362e2d;--muted:#756c69;--line:#e7dfdc;--bg:#faf8f6;--soft:#f5e9e4;--dark:#4e3e3c}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Arial,Helvetica,sans-serif}a{color:var(--accent-dark)}button,input,textarea,select{font:inherit}button{cursor:pointer}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #b04938;outline-offset:4px}.skip{position:absolute;left:10px;top:-60px;z-index:100;background:white;padding:12px}.skip:focus{top:10px}aside{position:fixed;inset:0 auto 0 0;width:258px;background:#fff;border-right:1px solid var(--line);padding:30px 23px;display:flex;flex-direction:column}.brand{display:flex;gap:9px;align-items:center;text-decoration:none;color:var(--ink);font-size:22px;font-weight:700;letter-spacing:-.7px;white-space:nowrap}.brand 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var(--line)}.stats>div:last-child{border:0}.stats b{font-size:22px;display:block;letter-spacing:-.6px}.stats small{font-size:12px}.section-heading{display:flex;justify-content:space-between;align-items:center}.muted{color:var(--muted)}.small{font-size:13px}.group-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.group-card{display:block;background:white;border:1px solid var(--line);border-radius:13px;padding:25px;text-decoration:none;color:var(--ink);transition:.15s}.group-card:hover{border-color:#d69c89;transform:translateY(-2px)}.chapter-number{font:16px monospace;color:#b18b79}.group-card h3{font-size:22px;margin-top:22px}.group-card p{font-size:14px;color:var(--muted)}.card-footer{border-top:1px solid var(--line);padding-top:15px;display:flex;justify-content:space-between;color:#906253;font-size:12px}.feature{background:#f5e8df;padding:28px 32px;display:flex;gap:35px;align-items:center;border-radius:13px;margin:35px 0 25px}.feature>div{flex:1}.feature 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code{padding:0;color:inherit;background:none}.fixture{background:#f5eee8;border:1px solid #e3d5ca;color:#5f4335}.worked{background:#fbf1e8;border-left:3px solid var(--accent);padding:20px;margin:24px 0}.worked p:last-child{margin-bottom:0}.self-practice{border-top:1px solid var(--line);padding-top:35px;margin-top:40px;scroll-margin-top:25px}.self-practice h2{margin-top:12px}.self-practice>p{font-size:15px;line-height:1.8}label{display:block;font-size:13px;color:#695348;margin:18px 0 9px}textarea{width:100%;min-height:130px;resize:vertical;padding:13px;border:1px solid #d9c8bc;border-radius:7px;background:#fffcf9;font-size:14px;line-height:1.7;color:var(--ink)}.answer-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:5px 18px;margin:10px 0 25px}.answer-fields input{display:block;width:100%;margin-top:7px;font-size:14px}[aria-invalid=true]{border-color:#b24631!important;background:#fff3ee!important}.feedback{margin:18px 0;font-size:14px;min-height:10px}.feedback.success{background:#f1f4e8;padding:14px;border-radius:8px;color:#435229}.feedback.retry{background:#fff0e5;padding:14px;border-radius:8px;color:#94513a}details{padding:17px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;color:#7e4d3b;font-weight:600;font-size:14px}details p{font-size:14px;line-height:1.85}.sources{margin-top:40px;border-top:1px solid var(--line);padding-top:15px}.sources h2{font-size:22px}.sources h3{font-size:14px}.sources li{font-size:13px;margin:8px 0}.article-next{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:25px;margin-top:35px}.tag{display:inline-block;font-size:11px;background:#f6e8de;padding:3px 9px;border-radius:5px;color:#8e5843}.download-card{padding:28px;background:#f6e5dc;border:1px solid #e9cfc0;border-radius:13px;display:flex;align-items:center;gap:25px;margin:30px 0}.download-card>div{flex:1}.download-card h2{margin:12px 0}.download-card p{margin-bottom:0;font-size:14px}.download-card a{white-space:nowrap}.task-list{display:grid;grid-template-columns:1fr 1fr;gap:15px}.task{border:1px solid var(--line);border-radius:9px;padding:20px}.task p{font-size:14px}.task code{font-size:12px}.task a{font-size:12px}.command-row{display:grid;grid-template-columns:1fr 1.15fr 110px;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:22px;background:white}.command-row:first-child{margin-top:20px}.command-row p{font-size:13px;margin:0}.command-row small{display:block;margin-bottom:7px}.copy{font-size:11px;padding:8px 9px}.check{display:flex;gap:10px;align-items:start;font-size:14px;line-height:1.7;margin:17px 0}.check input{accent-color:var(--accent-dark);margin-top:6px}.source-map{padding-left:20px}.source-map>li{margin:18px 0}.source-map ul{padding-left:15px}.source-map ul li{font-size:11px;overflow-wrap:anywhere;margin:7px 0}.empty{padding:25px;border:1px dashed 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17px}.article-state{grid-column:2}.article-row h3{font-size:18px}.article-row p{font-size:13px}.article-group>h2{font-size:24px}.toolbar{flex-direction:column}select{max-width:none}.lesson-body,.paper{padding:20px}.article-text p,.article-text li,.paper p,.paper li{font-size:15px}.article-text h2{font-size:22px}pre{font-size:12px;padding:16px}.answer-fields,.task-list{grid-template-columns:1fr}.download-card{padding:22px}.command-row{grid-template-columns:1fr auto;gap:12px;padding:18px 15px}.command-row p{grid-column:1/3;grid-row:2}.command-row code{font-size:12px}.command-row .copy{max-width:90px}.article-tools{gap:15px}.article-tools .secondary{padding:10px 13px}footer{display:block}footer a{display:block;margin-top:8px}}@media print{aside,header,footer,.article-tools,.reading-aside,.article-next,.actions,button,.skip{display:none!important}main{margin:0;padding:0}body{background:white}.reading-layout{display:block}.lesson-body,.paper{border:0;padding:0}#app{padding:0}pre{background:#f3efeb;color:#222}.article-text table{display:table}.answer-fields{display:none}.self-practice{break-before:page}a{color:#222;text-decoration:none}}
.practice-block{border-top:1px solid var(--line);margin-top:40px;padding-top:32px;scroll-margin-top:25px}.practice-block>h2{margin-top:10px}.practice-block>h3{margin-top:25px;font-size:17px}.practice-block p,.practice-criteria li{font-size:15px;line-height:1.85}.practice-criteria{padding-left:23px}.practice-criteria li{margin:10px 0;padding-left:3px}.practice-note{margin-top:25px;color:var(--muted);font-size:13px!important}.article-text h2{margin-top:42px}.reading-aside{max-height:calc(100vh - 50px);overflow-y:auto}.article-text p{margin-bottom:23px}@media print{.practice-block{break-before:page}}@media(max-width:1100px){.reading-aside{max-height:none;overflow:visible}}
.account-control{display:flex;gap:14px;align-items:center;justify-content:flex-end;flex-wrap:wrap}.account-link{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:12px;font-weight:600;text-decoration:none;max-width:220px;overflow:hidden;text-overflow:ellipsis}.account-register{padding:8px 12px;border-radius:7px;background:#f7e6de;text-decoration:none;font-size:11px;color:#884638;font-weight:600}.account-signout{font-size:11px;color:var(--muted);text-decoration:none}.avatar-small{background:#f7e0d5;color:#904534;width:25px;height:25px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0}.account-sync,.account-loading{font-size:10px;color:var(--muted)}.account-sync.sync-error{color:#ac352e}.account-retry{font-size:10px;background:none;border:0;color:#ac352e;text-decoration:underline}.account-welcome{display:grid;grid-template-columns:1.2fr 1fr;gap:42px;align-items:center;min-height:65vh}.account-welcome h1{font-size:42px}.account-benefits{margin-top:35px}.account-benefits p{display:flex;gap:16px;align-items:baseline;font-size:14px;margin:19px 0}.account-benefits span{font:13px monospace;color:#b8836c}.auth-card{padding:34px;background:white;border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 65px #4e3e3c08}.auth-card h2{margin:20px 0 15px}.auth-card>p{font-size:14px;line-height:1.9;color:var(--muted)}.auth-card .auth-start{display:block;text-align:center;margin-top:25px}.auth-card .back{display:block;margin-top:28px}.field-help{font-size:11px!important;color:var(--muted)!important;margin:7px 0 15px!important;line-height:1.7!important}.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}.profile-grid>.paper{margin-top:0}.profile-edit h2{font-size:23px;margin-top:0}.profile-form input,.profile-form select{display:block;width:100%;max-width:none;padding:12px 14px;border:1px solid #d8c6bb;border-radius:7px;background:#fffcf9;color:var(--ink);font:14px Arial,sans-serif}.profile-form input[readonly]{background:#f4f1ee;color:#7d736c}.profile-form label{font-size:13px;margin:21px 0 9px}.profile-form .primary{margin-top:12px}.primary:disabled{opacity:.6;cursor:wait}.form-error{color:#a93e2e!important;font-size:13px!important;min-height:20px;margin-top:15px}.profile-explainer{padding:34px;background:#f4e7de;border-radius:12px;margin-top:0}.profile-explainer h3{font-size:16px;overflow-wrap:anywhere;margin:20px 0}.profile-explainer p{font-size:14px;line-height:1.9}.profile-summary{background:white;border:1px solid var(--line);border-radius:12px;display:flex;gap:22px;align-items:center;padding:26px;margin-top:30px}.profile-summary h2{margin:0 0 8px;font-size:24px}.profile-summary p{font-size:13px;color:var(--muted);margin:5px 0}.profile-summary>.primary{margin-left:auto;white-space:nowrap}.profile-avatar{width:64px;height:64px;background:#f6dcd0;color:#a24d3a;border-radius:50%;font-size:26px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.profile-stats{margin-bottom:30px}.profile-learning{padding:28px 0}.profile-learning h2{font-size:23px;margin-top:0}.profile-group{display:flex;justify-content:space-between;gap:15px;padding:15px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font-size:13px}.profile-group b{color:#a45e48;font-size:12px}.import-card{margin:30px 0;background:#f7eee6;border:1px solid var(--line);padding:25px;border-radius:12px;display:flex;align-items:center;gap:25px}.import-card>div{flex:1}.import-card h3{margin-top:0}.import-card p{font-size:13px;color:var(--muted);margin-bottom:0}.import-card>button{white-space:nowrap}.profile-alert{background:#fff0e4;border:1px solid #e7c0ad;border-radius:8px;padding:14px 20px;margin:20px 0;color:#93412e;font-size:13px}.profile-notice{color:#667b42;font-size:13px}nav a{padding-top:10px;padding-bottom:10px}#progress-storage a{color:#965745}@media(max-width:1100px){.account-welcome{grid-template-columns:1fr;gap:28px}.account-welcome h1{font-size:38px}.profile-grid{grid-template-columns:1fr}.account-sync{display:none}.profile-summary{flex-wrap:wrap}.profile-summary>.primary{margin-left:86px}.profile-explainer{padding:25px}}@media(max-width:700px){header{height:auto;min-height:66px;padding:13px 0;gap:12px}header>span{max-width:115px;font-size:10px}.account-control{gap:8px}.account-link{max-width:130px;font-size:11px}.account-register{padding:7px 9px;font-size:10px}.account-signout{font-size:10px}.account-welcome h1{font-size:32px}.auth-card{padding:24px}.profile-summary{gap:16px;padding:20px}.profile-summary h2{font-size:21px}.profile-summary>.primary{margin-left:0;width:100%;text-align:center}.profile-summary p{font-size:12px;overflow-wrap:anywhere}.profile-summary>div:nth-child(2){min-width:0;flex:1}.profile-avatar{width:50px;height:50px;font-size:22px}.profile-grid{gap:15px}.import-card{display:block;padding:22px}.import-card button{margin-top:20px}.profile-learning{padding:20px 0}}
/* Личный кабинет на отдельном сервере */
.profile-form input[type=password]{font:inherit;display:block;width:100%;padding:13px 14px;border:1px solid var(--line,#dedbd6);border-radius:9px;background:#fff;color:inherit;box-sizing:border-box}
.profile-form input:focus-visible,.profile-form select:focus-visible{outline:2px solid #dc6655;outline-offset:2px}
button.account-signout{border:0;background:none;font:inherit;cursor:pointer;padding:6px}
.auth-switch{font-size:14px;margin:20px 0}.auth-switch a{color:#b34c3d;font-weight:600}
.form-error{color:#a4382d;min-height:1.4em;font-size:14px}.profile-form button:disabled{opacity:.6;cursor:wait}
.auth-card .back{display:inline-block;margin-top:16px}

.auth-shell main{margin:0 auto;max-width:1200px;padding:48px 32px}.auth-shell .brand{max-width:240px;margin-bottom:70px}.auth-layout{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.auth-shell h1{font-size:clamp(2.3rem,4vw,4rem)}@media(max-width:800px){.auth-layout{grid-template-columns:1fr;gap:24px}.auth-shell main{padding:24px}.auth-shell .brand{margin-bottom:32px}}