/* English Room: композиция Lisso, рабочие поверхности и учебные акценты. */
.layout:has(#room-root) .topbar{display:none}.layout:has(#room-root) .page-heading{margin:18px 0}.layout:has(#room-root) .page-heading h1{font-size:32px;letter-spacing:-.7px}.layout:has(#room-root) .page-heading p{font-size:13px;margin-top:6px}.room-task .lesson-passport{padding:16px 22px}.room-goal{border:0;margin:6px 0}.room-goal summary{font-size:13px;padding:6px 0}.room-goal p{font-size:14px;margin:4px 0}.room-outline-panel{border:0}.room-outline-panel>summary{font-size:17px;padding:0 0 12px;color:#393045;font-weight:600}.room-outline button{font-size:13px}
.layout .sidebar{flex-direction:row}.layout .sidebar nav{margin-top:0}.layout .sidebar .brand{color:#34294c}.page-heading h1{font-size:clamp(30px,3.5vw,48px)}
:root{--color-canvas:#f5f3f9;--color-primary:#6550be;--color-text:#272735;--color-muted:#646277;--color-border:#e4e0ed;--font-body:'Segoe UI Variable Text','Segoe UI',Arial,sans-serif;--radius-card:24px;--radius-control:12px;background:var(--color-canvas);color:var(--color-text);font-size:15px}
body{background:radial-gradient(ellipse at 95% 0,#e7e0fa 0,transparent 40%),radial-gradient(ellipse at 0 40%,#fff0df 0,transparent 35%),#f5f3f9;min-height:100dvh}
button{min-height:44px;background:var(--color-primary);font-size:14px;border-radius:12px}button:hover:not(:disabled){background:#514096}button.secondary{background:#f5f3fa;color:#393348;border-color:#e1dce9}button.secondary:hover:not(:disabled){background:#e9e4f4}button.danger{color:#9a3c40;background:#fff0f0}.icon-button{min-width:44px;min-height:44px;background:transparent;color:var(--color-text)}
input,select,textarea{border-color:#c8c1d6;background:#fff;font-size:16px}input:focus,textarea:focus{border-color:#6550be;box-shadow:0 0 0 3px #eee8fc}label{font-size:14px}h1{font-size:clamp(30px,3.5vw,48px);letter-spacing:-1.5px;font-weight:600;line-height:1.12}h2{font-size:23px;letter-spacing:-.5px}h3{font-size:18px}strong{font-weight:650}.hint,.muted{color:#646277}.hint{font-size:13px}.card{border:1px solid #ffffffb0;box-shadow:0 5px 22px #42325c05;padding:28px;margin-bottom:20px;border-radius:24px}
.layout{display:block;min-height:100dvh;max-width:1600px;margin:auto;padding:20px 28px 50px}.layout>main{margin:0;padding:0;min-width:0;width:100%;max-width:none}.sidebar{position:sticky;top:12px;z-index:10;width:100%;height:auto;min-height:72px;padding:12px 20px;display:flex;align-items:center;gap:24px;border-radius:22px;background:#fffffff0;backdrop-filter:blur(16px);border:1px solid white;box-shadow:0 6px 25px #30233f06;overflow:visible}.sidebar .brand{margin:0;font-size:23px;letter-spacing:-.8px;flex-shrink:0}.sidebar .brand .icon{color:#6550be;width:28px;height:28px}.sidebar nav{display:flex;flex:1;align-items:center;justify-content:center;gap:4px;overflow:visible}.sidebar .nav{width:auto;white-space:nowrap;min-height:44px;padding:10px 13px;font-size:14px;background:transparent;color:#646277;border:0}.sidebar .nav.active{color:#322553;background:#eee8fb}.sidebar .nav:hover{background:#f4f0fa}.sidebar .nav .icon{display:none}.sidebar .profile{margin:0;padding:0;border:0;display:flex;align-items:center;gap:10px;font-size:13px;flex-shrink:0}.profile small{font-size:11px}.topbar{padding:22px 4px 10px;border:0;background:transparent;font-size:12px;color:#646277;min-height:0}.mobile-logout{display:none!important}.page-heading{margin:22px 0 28px;align-items:center;gap:20px}.page-heading p{max-width:640px;font-size:15px;margin-top:12px}.page-heading .row{flex-shrink:0}.badge,.chip{font-size:12px;color:#54436c;background:#f1ecfa}.badge.live{color:#245d50;background:#e0f2e9}.badge.attention{color:#795017;background:#fff0ce}.eyebrow{font-size:11px;letter-spacing:1.5px;color:#665390;font-weight:700}.page-heading button{border-radius:100px;padding:12px 20px}
.home-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.8fr);gap:24px;align-items:start}.student-tiles,.assignment-tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.student-tile{background:#fff;border:1px solid #e3ddea;border-radius:20px;padding:18px;text-align:left;color:#272735;justify-content:flex-start;gap:14px;min-height:88px}.student-tile:hover:not(:disabled){background:#f3edff}.student-tile.selected{background:#eae2fa;border:2px solid #8067ca;padding:17px}.avatar{display:grid;place-items:center;flex-shrink:0;width:48px;height:48px;border-radius:16px;background:#ede5fb;color:#514084;font-size:20px;font-weight:600}.student-tile small{display:block;color:#646277;font-size:12px}.home-panel{border-radius:24px;padding:26px;background:#fff}.connection-strip{border:0;background:linear-gradient(120deg,#e9e2fb,#f0ebfa);padding:22px}.connection-strip p{color:#594d6e}.assignment-tile{background:#fff;border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:12px;border:1px solid #e6e0ec}.assignment-tile h3{font-size:21px;line-height:1.25;margin:0}.assignment-tile .row{margin-top:auto}.assignment-tile .row button{flex:1}.assignment-tile.is-live{border-color:#afccbe;background:linear-gradient(155deg,#fff,#eef8f2)}.assignment-drawer{background:#f7f4fc;padding:18px;border-radius:18px;border:0;margin-top:18px}.assignment-drawer summary{font-weight:600}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 0 18px}.panel-title h2{margin:0}.quick-card{background:linear-gradient(135deg,#ffedd8,#eee3ff);border:0}.quick-card p{color:#564660}.quick-card .metric{font-size:48px;letter-spacing:-2px}.library-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.library-card{padding:18px;display:flex;flex-direction:column;gap:12px}.library-card h2{font-size:24px;margin:0;line-height:1.2}.library-cover{height:145px;min-height:0;background:linear-gradient(130deg,#e5ddfa,#fce7df);border-radius:16px;overflow:hidden;position:relative;display:flex;align-items:flex-end;justify-content:space-between;padding:18px;color:#54436c}.library-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.library-cover span{z-index:1;background:#fff;padding:5px 10px;border-radius:100px;font-weight:600}.library-cover .icon{width:40px;height:40px}.library-card .library-actions{margin:0;display:flex;gap:8px}.library-card .library-actions button{flex:1}.library-card>.secondary{margin-top:auto}.search-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.search-toolbar input{margin:0;max-width:500px}.search-toolbar label{margin:0;flex:1;min-width:220px}.search-toolbar select{margin:0;min-width:120px}.library-description{font-size:14px;color:#646277;margin:0}.empty{padding:30px 12px;text-align:center}.empty p{margin-left:auto;margin-right:auto}.student-grid{grid-template-columns:1.5fr 1fr}.student-row{border-bottom:1px solid #e9e3ed;padding:20px 0}.student-row:last-child{border:0}
.lesson-passport{padding:26px 30px;background:linear-gradient(120deg,#e9e1fb,#fceee1);border-radius:24px;margin-bottom:22px}.lesson-passport h2{font-size:26px;margin:12px 0}.lesson-passport p{max-width:720px;margin-bottom:0}.lesson-passport .objective{background:#ffffff90;border-radius:14px;padding:16px;margin-top:16px;color:#463357}.lesson-worksheet,.worksheet-intro{max-width:960px}.worksheet-exercise{padding:28px 32px;scroll-margin-top:110px;position:relative}.worksheet-section-head{gap:16px}.worksheet-section-head h2{font-size:25px}.block-number{background:#e9e1fc;color:#5a4695;width:36px;height:36px;font-size:16px;border-radius:12px;flex-shrink:0}.rich-text{font-size:17px;line-height:1.75;max-width:76ch}.rich-text p{margin:10px 0 18px;line-height:1.75}.rich-text h2{font-size:25px;margin-top:24px}.rich-text h3{font-size:21px;margin-top:20px}.rich-text mark,mark{background:#ffebac;color:#493515;padding:1px 5px;border-radius:5px;font-weight:600}.rich-text blockquote{border-left:3px solid #9d86d0;background:#f1ecfa;color:#4b3b64;padding:16px 20px;border-radius:0 12px 12px 0}.worksheet-prompt:not(.tone-plain){padding:20px;border:0;border-radius:16px}.worksheet-prompt.tone-rule{background:#e6f3ec}.worksheet-prompt.tone-example{background:#f0eafb}.worksheet-prompt.tone-info{background:#e9effc}.worksheet-prompt.tone-warning{background:#fff2d9}.worksheet-exercise .choice{background:#f8f6fc;border:1px solid #e3deec;border-radius:14px;padding:15px 18px;margin:10px 0;font-size:16px;min-height:52px;font-weight:400;cursor:pointer}.choice:has(input:checked){background:#ece4fb;border-color:#8b70c7}.choice input{accent-color:#6550be}.exercise-image{max-height:none!important;width:100%;object-fit:contain!important}.image-expand{background:#f9f7fc!important}.image-expand>span{background:#f1edf7;color:#5a4b72}.audio-block{background:#f0eafb;border:0;border-radius:16px;padding:18px}.audio-block a{font-size:13px}.worksheet-outline{border:0;background:#fff;padding:0 22px}.outline-link{background:#f3eefb;color:#504066;min-height:44px}.worksheet-submit{background:#ece5f8;border:0;position:static}.task-hints{border:0;padding:14px 18px;border-radius:14px;background:#fff5d9;margin-top:16px}.task-hints summary{color:#715025}.speaking-notice{display:flex;gap:14px;background:#f0eafb;border-radius:16px;padding:20px;margin-top:18px}.speaking-notice p{font-size:14px;margin:0}.word-bank{gap:8px}.word-bank button{min-height:44px}.vocabulary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.vocab-item{background:#fff;border:1px solid #ded4ec;border-radius:16px;padding:16px}.vocab-item strong{font-size:18px}.vocab-item p{font-size:14px;margin:5px 0}.vocab-item small{color:#646277}.word-popover{width:min(440px,calc(100vw - 24px));border:0;border-radius:22px;padding:26px;background:#fff;color:#272735}.word-popover::backdrop,.app-dialog::backdrop{background:#21182c70;backdrop-filter:blur(4px)}.app-dialog{width:min(540px,calc(100vw - 24px));max-height:calc(100dvh - 32px);overflow:auto;border:0;border-radius:24px;padding:28px;color:#272735}.app-dialog h2{margin-right:35px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.dialog-actions button{min-width:110px}.app-dialog .dialog-close{position:absolute;right:12px;top:12px}.app-dialog textarea{min-height:160px}.lesson-preview-dialog{background:#f6f3fb;border:0}.preview-header{background:#fff;z-index:5}.image-dialog{border-radius:24px}.image-view.zoomed img{max-width:none;width:auto;min-width:100%;height:auto}
.editor-basics{background:#fff}.editor-meta{grid-template-columns:1fr 1fr 2fr}.builder-grid{grid-template-columns:240px minmax(0,1fr);gap:24px}.block-toolbox{top:105px;max-height:calc(100dvh - 130px);overflow:auto;padding:20px}.block-toolbox h2{font-size:20px}.template-picker{grid-template-columns:1fr}.template-button{justify-content:flex-start;padding:10px;font-size:13px}.template-symbol{background:#eae2f6;color:#624798}.editor-outline{display:grid;gap:6px;margin-bottom:20px}.editor-outline button{justify-content:flex-start;background:#f4eff9;color:#59446d;text-align:left;padding:10px;min-height:44px;font-size:13px}.editor-outline button.active{background:#e4d8f8;color:#493276}.block-accordion{border:1px solid #e3d9ed;border-radius:20px}.block-accordion[open]{border-color:#b39ed6;background:#fff}.block-summary{padding:20px}.block-summary strong{font-size:17px}.block-body{padding:24px}.block-config{gap:18px}.editor-savebar{bottom:12px;border-radius:18px;background:#fffffff5;border:1px solid #ded4ed;padding:16px 22px;box-shadow:0 8px 32px #3e28591a}.format-toolbar button{background:#f7f3fc;color:#49375e}.inline-preview{background:#faf7fd;border:0;padding:10px 16px;border-radius:12px}.optional-settings{border:0;padding-top:16px}.editor-extra-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.draft-status{font-size:13px;color:#604e7d}.select-menu{border-color:#d3c6e7}.select-option[aria-selected=true]{background:#ece4fc;color:#523585}.select-trigger{color:#393348;border-color:#c8c1d6}.select-trigger:focus-visible{outline-color:#8d71c7}.upload-zone{background:#f8f4fd;border-color:#baaad2}.upload-symbol{background:#eee5fa;color:#694e91}.library-card .chips,.worksheet-meta .chips{margin:0}
.room-toolbar{position:sticky;top:100px;z-index:8;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;background:#fff;padding:12px 18px;border:1px solid #e0d6ee;border-radius:18px;margin-bottom:20px}.room-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;align-items:start}.room-aside{position:sticky;top:180px;background:#fff;border-radius:22px;padding:22px;max-height:calc(100dvh - 200px);overflow:auto}.room-aside h3{font-size:18px}.room-task{min-width:0}.room-image{position:relative;border-radius:16px;overflow:hidden;background:#fff}.room-image img{display:block;width:100%;height:auto;pointer-events:none}.room-overlay{position:absolute;inset:0;width:100%;height:100%;touch-action:auto}.room-overlay.drawing{touch-action:none;cursor:crosshair}.room-cursor{position:absolute;pointer-events:none;z-index:3;color:#6550be;transform:translate(-2px,-2px)}.room-cursor.student{color:#b34d3c}.room-cursor span{display:block;background:currentColor;width:10px;height:10px;border-radius:50%}.room-cursor small{display:block;color:white;background:#6550be;border-radius:6px;padding:3px 6px;white-space:nowrap;margin:3px}.room-cursor.student small{background:#b34d3c}.room-presence{font-size:13px;color:#646277}.teacher-key{border-radius:14px;background:#fff4db;padding:18px;border:1px solid #ebd69e;margin-top:18px}.correction-note{background:#e4f4ec;color:#255944;border-radius:14px;padding:18px;margin-top:18px}.correction-note p{white-space:pre-wrap;font-size:16px}.room-student-answer{background:#f7f3fc;padding:16px;border-radius:14px;white-space:pre-wrap}.room-nav{display:flex;gap:10px;margin-top:20px}.room-nav button{flex:1}.room-outline button{width:100%;justify-content:flex-start;text-align:left;margin-top:8px;background:#f6f1fc;color:#564267}.room-outline button.active{background:#e6dafa}.room-tools{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.room-tools button{font-size:12px;min-height:44px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1150px){.sidebar{gap:12px;padding:12px}.sidebar nav{justify-content:flex-start;gap:2px}.sidebar .nav{padding:10px 8px;font-size:13px}.sidebar .profile>div{display:none}.home-grid{grid-template-columns:1fr 320px}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.layout{padding:16px 22px 40px}.room-layout{grid-template-columns:minmax(0,1fr) 230px}.builder-grid{grid-template-columns:210px minmax(0,1fr)}}
@media(max-width:850px){.sidebar{flex-wrap:wrap;gap:8px;top:6px}.sidebar .brand{font-size:20px}.sidebar .profile{margin-left:auto}.sidebar nav{order:3;flex-basis:100%;overflow:auto;white-space:nowrap;padding-bottom:2px}.sidebar .nav{font-size:13px;flex-shrink:0}.home-grid,.student-grid{grid-template-columns:1fr}.home-grid>aside{display:grid;grid-template-columns:1fr 1fr;gap:16px}.home-grid>aside .card{margin:0}.room-layout{grid-template-columns:1fr}.room-aside{position:static;max-height:none;order:-1;padding:18px}.room-outline{display:flex;overflow:auto;gap:8px}.room-outline button{width:auto;flex-shrink:0}.room-toolbar{top:145px}.builder-grid{grid-template-columns:1fr}.block-toolbox{position:static;max-height:none}.template-picker{grid-template-columns:repeat(3,minmax(0,1fr))}.editor-outline{display:flex;overflow:auto}.editor-outline button{flex-shrink:0;max-width:220px}.page-heading{align-items:flex-start}.page-heading .row{flex-wrap:wrap}.worksheet-exercise{scroll-margin-top:165px}.room-aside>details{margin-top:10px}}
@media(max-width:560px){.layout{padding:8px 12px 28px}.sidebar{padding:10px;border-radius:17px}.sidebar .nav{font-size:12px;padding:9px 10px}.sidebar .brand{font-size:19px}.topbar{padding:15px 2px 4px}.topbar>.row .badge{font-size:11px}.page-heading{margin:18px 0 22px;flex-direction:column;gap:14px}.page-heading h1{font-size:34px;letter-spacing:-1px}.page-heading p{font-size:14px}.page-heading .row{width:100%}.page-heading button{font-size:13px;padding:11px 16px}.card,.home-panel{padding:20px;border-radius:20px}.home-grid{gap:18px}.student-tiles,.assignment-tiles,.home-grid>aside,.library-grid,.vocabulary-grid{grid-template-columns:1fr}.student-tile{min-height:76px}.library-card{padding:16px}.library-cover{height:160px}.library-card h2{font-size:25px}.worksheet-exercise{padding:20px 18px}.worksheet-section-head h2{font-size:22px}.rich-text{font-size:16px;line-height:1.65}.rich-text p{line-height:1.65}.worksheet-prompt:not(.tone-plain){padding:15px}.lesson-passport{padding:22px 20px}.worksheet-meta{font-size:13px}.worksheet-outline{padding:0 18px}.worksheet-submit{padding:20px}.editor-meta,.editor-extra-grid{grid-template-columns:1fr}.template-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.template-button{font-size:12px}.block-toolbox{padding:18px}.block-summary{padding:16px}.block-summary>.badge{display:none}.block-body{padding:18px}.block-actions .row{gap:4px}.editor-savebar{padding:12px;bottom:8px;flex-direction:column;gap:10px}.editor-savebar>.row{width:100%;display:flex}.editor-savebar button{flex:1;font-size:13px}.option-editor .icon-button{min-width:44px}.preview-body{padding:12px}.preview-header{padding:14px}.app-dialog{padding:24px 20px}.dialog-actions{flex-wrap:wrap}.dialog-actions button{flex:1}.room-toolbar{top:139px;padding:12px}.room-toolbar .row{gap:8px}.room-toolbar button{font-size:12px;padding:9px 12px}.room-aside{padding:16px}.room-tools button{flex:1}.student-row .row button{font-size:12px}.notice>div{min-width:0}.assignment-tile{padding:20px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media(max-width:850px){.room-aside{padding:14px 18px}.room-aside details>summary{padding:8px 0}.room-outline-panel>summary{font-size:14px}.room-aside>details{margin:0}.room-toolbar{top:125px}}
@media(max-width:560px){.layout:has(#room-root) .sidebar nav{display:none}.layout:has(#room-root) .sidebar{min-height:60px}.layout:has(#room-root) .page-heading{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.layout:has(#room-root) .page-heading p{display:none}.layout:has(#room-root) .page-heading h1{font-size:26px;letter-spacing:-.5px;margin:0}.room-back-label{display:none}.room-toolbar{position:static;margin-bottom:12px;gap:8px}.room-toolbar button{font-size:11px;padding:8px 10px}.room-layout{gap:12px}.room-task .lesson-passport{padding:12px 16px;margin-bottom:12px}.room-goal{margin:0}.room-task .lesson-passport .chips{margin:0}.room-task .lesson-passport .text-button{min-height:36px;padding:4px 0;font-size:12px}.room-aside{padding:10px 16px}.room-aside>details>summary{font-size:13px}.worksheet-exercise{scroll-margin-top:85px}}
.section-spaced{margin-top:26px}.search-toolbar>label:nth-child(2){flex:0 0 220px}.room-overlay{overflow:visible}.auth-card h1{font-size:36px;letter-spacing:-1px}.auth-illustration{max-height:150px;width:100%;object-fit:contain}.auth-card{border-radius:28px}.block-accordion{scroll-margin-top:115px}@media(max-width:560px){.layout .sidebar{flex-direction:row}.page-heading h1{font-size:34px}.search-toolbar>label:nth-child(2){flex-basis:100%}.block-accordion{scroll-margin-top:160px}}
.room-task .lesson-passport{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.room-task .lesson-passport .chips{flex:0 1 auto}.room-task .lesson-passport .room-goal{flex:1;min-width:180px}.room-task .lesson-passport .text-button{flex-shrink:0}.room-task .lesson-passport .room-goal p{max-width:none}.student-row strong{font-size:17px}@media(max-width:560px){.room-task .lesson-passport{gap:6px}.room-task .lesson-passport .room-goal{min-width:150px}.room-task .lesson-passport .chips{flex-basis:100%}}
.mobile-nav-toggle{display:none}@media(max-width:560px){.mobile-nav-toggle{display:flex;font-size:12px;padding:9px 12px;margin-left:auto}.layout .sidebar{gap:8px;min-height:64px}.sidebar .profile{margin-left:0}.sidebar nav{display:none}.sidebar.menu-open nav{display:flex;flex-direction:column;align-items:stretch;max-height:55dvh;overflow:auto}.sidebar.menu-open .nav{text-align:left;justify-content:flex-start;width:100%;font-size:14px}.layout:has(#room-root) .mobile-nav-toggle{display:none}.layout:has(#room-root) .sidebar .profile{margin-left:auto}}
@media(max-width:360px){.sidebar .brand{font-size:16px}.sidebar .brand span{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layout .sidebar{gap:6px}.mobile-nav-toggle{font-size:11px;padding:8px}}
.room-image{margin:16px auto;max-width:100%}.exercise-image{max-height:min(520px,60svh)!important}@media(max-height:500px){.layout:has(#room-root) .sidebar{position:static;min-height:56px;padding:8px 12px}.layout:has(#room-root) .sidebar nav{display:none}.layout:has(#room-root) .page-heading{margin:10px 0}.layout:has(#room-root) .page-heading h1{font-size:24px}.layout:has(#room-root) .page-heading p{display:none}.room-toolbar{position:static;margin-bottom:10px;padding:8px 12px}.room-presence{display:none}.room-back-label{display:none}.room-task .lesson-passport{padding:10px 16px}.room-aside{padding:10px 16px}.room-layout{gap:12px}.room-task .lesson-passport .room-goal p{font-size:12px}}
.sidebar .profile strong{max-width:140px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.choice{overflow-wrap:anywhere;word-break:break-word}.choice input{flex-shrink:0}.chip{max-width:100%;white-space:normal;overflow-wrap:anywhere}.assignment-tile>.badge{align-self:flex-start}.room-outline button,.editor-outline button{overflow-wrap:anywhere;white-space:normal}
.lesson-passport .lesson-summary{font-size:17px;line-height:1.5;font-weight:500;margin:12px 0}.worksheet-intro{padding:0 22px}.worksheet-intro>summary{font-weight:600}.worksheet-intro .rich-text{padding-bottom:18px}@media(max-width:560px){.lesson-passport .lesson-summary{font-size:16px}.lesson-passport .objective{padding:14px;font-size:15px}}

/* Единая навигация, спокойные поверхности и читаемые состояния. */
body{background:#f5f3f9}
*{scrollbar-width:thin;scrollbar-color:#aaa0be #f0edf5}
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-track{background:#f0edf5;border-radius:12px}
*::-webkit-scrollbar-thumb{background:#aaa0be;border:2px solid #f0edf5;border-radius:12px}
*::-webkit-scrollbar-thumb:hover{background:#7d6c9a}
.quick-card,.connection-strip{background:#fff;border:1px solid #e4e0ed}
.lesson-passport{background:#eee8f7}
.library-cover{background:#eae3f5}
.room-task .worksheet-exercise{scroll-margin-top:105px}
.quick-card p,.connection-strip p{color:#646277}
.assignment-tile.is-live{background:#fff;border-color:#b3a2d8}
.assignment-tile .library-cover{flex-shrink:0;height:150px;width:100%}
.assignment-tile h3{font-size:24px}
.assignment-tile>.library-description{margin:0 0 8px}
.assignment-tiles{margin-bottom:20px}
.editor-outline button:hover:not(:disabled),.room-outline button:hover:not(:disabled),.outline-link:hover:not(:disabled){background:#e6dcf4;color:#3f2d60}
.editor-outline button.active:hover:not(:disabled),.room-outline button.active:hover:not(:disabled){background:#d9c9f0;color:#382351}
.outline-link>span{color:#584080}
.editor-outline button:focus-visible,.room-outline button:focus-visible,.outline-link:focus-visible{outline:3px solid #8b70c7;outline-offset:2px}
.library-card>.badge{align-self:flex-start}
.student-lessons .library-card>button{margin-top:auto}
.layout .sidebar .nav:hover{color:#46345f;background:#eee8f7}
.layout .sidebar .nav.active:hover{color:#322553;background:#e3d9f5}
@media(min-width:1000px){
 .layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px;padding:16px 24px 40px;align-items:start}
 .layout .sidebar{position:sticky;top:16px;display:flex;flex-direction:column;align-items:stretch;width:220px;height:calc(100dvh - 32px);min-height:0;padding:24px 14px;gap:24px;overflow:auto;border-radius:22px;background:#fff}
 .layout .sidebar .brand{font-size:21px;justify-content:flex-start;padding:0 4px}
 .layout .sidebar nav{display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;flex:1;gap:8px;margin:0;overflow:visible}
 .layout .sidebar .nav{width:100%;text-align:left;justify-content:flex-start;white-space:normal;padding:13px 12px;font-size:14px;gap:10px}
 .layout .sidebar .nav .icon{display:block;width:20px;height:20px;flex-shrink:0}
 .layout .sidebar .profile{display:flex;margin-top:auto;padding:16px 4px 0;border-top:1px solid #e4e0ed;gap:8px;justify-content:space-between}
 .layout .sidebar .profile>div{display:block;min-width:0}
 .sidebar .profile strong{max-width:132px}
 .topbar{padding-top:10px;margin-bottom:20px;flex-wrap:wrap;gap:8px}
 .home-grid{grid-template-columns:minmax(0,1fr) 300px;gap:22px}
 .home-grid>.home-support{position:sticky;top:16px;display:block;max-height:calc(100dvh - 32px);overflow:auto}
 .home-support>.card,.home-support>.notice{padding:22px;margin-bottom:16px}
 .grid.two.student-grid{grid-template-columns:minmax(0,1fr) minmax(340px,.9fr);gap:24px}
 .student-create{position:sticky;top:16px}
 .block-toolbox{top:16px;max-height:calc(100dvh - 32px)}
 .room-toolbar{top:16px}
 .room-aside{top:100px;max-height:calc(100dvh - 116px)}
 .block-accordion,.worksheet-exercise{scroll-margin-top:30px}
 .library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(min-width:1400px){.library-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.home-grid{grid-template-columns:minmax(0,1fr) 330px}}
@media(min-width:1000px) and (max-width:1250px){.home-grid{grid-template-columns:minmax(0,1fr) 270px}.assignment-tiles{grid-template-columns:1fr}.student-tiles{grid-template-columns:1fr}.page-heading{align-items:flex-start;flex-wrap:wrap}.room-layout{grid-template-columns:minmax(0,1fr) 210px}}
@media(max-width:999px){
 .layout{display:block}
 .layout .sidebar{flex-direction:row;flex-wrap:wrap;gap:8px;height:auto;width:100%;top:6px}
 .mobile-nav-toggle{display:flex;margin-left:auto;font-size:13px}
 .layout .sidebar nav{display:none;order:3;flex-basis:100%;margin:0}
 .layout .sidebar.menu-open nav{display:flex;flex-direction:column;align-items:stretch;max-height:55dvh;overflow:auto}
 .layout .sidebar.menu-open .nav{width:100%;justify-content:flex-start;text-align:left;font-size:14px}
 .layout .sidebar .profile{margin-left:0}
 .layout .sidebar .profile>div{display:none}
 .home-grid,.grid.two.student-grid{grid-template-columns:1fr}
 .home-grid>.home-support{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
 .home-support>.card,.home-support>.notice{margin:0}
 .room-toolbar{top:88px}
 .layout:has(#room-root) .mobile-nav-toggle{display:flex}
}
@media(max-width:560px){.home-grid>.home-support{grid-template-columns:1fr}.room-toolbar{position:static}.assignment-tile .library-cover{height:160px}}
@media(forced-colors:active){*{scrollbar-color:auto}}
/* Палитра по назначению: действие, помощь, успешный результат, ошибка. */
:root{--color-canvas:#f6f5f9;--color-primary:#6550be;--color-text:#292633;--color-muted:#666172;--color-border:#ded9e8;--surface-help:#f0ebf8;--text-help:#51406e;--surface-success:#e6f2ec;--text-success:#245b46}
body{background:var(--color-canvas)}
.card{border-color:#e5e0eb;background:#fff}.badge,.chip{background:#fff;color:#514361;border:1px solid #d6cde3;font-weight:600}.badge.live{background:var(--surface-success);color:var(--text-success);border-color:#b9d7c8}.badge.attention{background:#eee7f9;color:#563b7d;border-color:#cfc0e4}.badge.gray{background:#f2f0f5;color:#625d6d;border-color:#dcd6e4}
.lesson-passport{background:#eee8f6;border:1px solid #ddd2eb}.task-hints,.shared-hints{background:var(--surface-help);color:var(--text-help);border:1px solid #d3c5e7;border-left:4px solid #9a80be;border-radius:14px;padding:16px 18px;margin:18px 0 24px}.task-hints summary{color:#51406e;font-weight:600}.task-hints>details{background:#fff;border:1px solid #ddd3e8;padding:10px 14px;border-radius:10px;margin-top:12px}.task-hints>details p{color:#40364d}.shared-hints p{background:#fff;border-radius:10px;padding:12px;margin:12px 0}.shared-hints button{margin-top:12px}.teacher-key,.private-key,.revealed-key{background:#eee8f6;color:#463358;border:1px solid #d8cbe8;border-radius:14px;padding:16px;margin:16px 0}.private-key small{color:#665477}.revealed-key p{margin:8px 0 0}.correction-note{background:var(--surface-success);color:var(--text-success);border:1px solid #bad6c8}
.worksheet-prompt.tone-rule{background:#e9f2ed;color:#294c3c}.worksheet-prompt.tone-example,.worksheet-prompt.tone-info{background:#eee9f6;color:#453558}.worksheet-prompt.tone-warning{background:#f7eced;color:#763e46}.rich-text mark,mark{background:#eadff9;color:#4a306d}.rich-text blockquote{background:#f0ebf7;color:#51406e;border-color:#9a80be}.audio-block{background:#f2eef8;border:1px solid #ddd3e9}
.text-button{padding:9px 14px;min-height:40px;border:1px solid #d8cee7;border-radius:11px;background:#f2edf8;color:#51406e}.text-button:hover:not(:disabled){background:#e8def4;color:#3f2a60}.icon-button{background:#f3eff8;color:#51406e;border:1px solid #ded5e9}.icon-button:hover:not(:disabled){background:#e7ddf3;color:#402b61}.inline-preview{margin:14px 0 20px;border:1px solid #ddd3e9;background:#f6f2fb}.inline-preview summary{color:#51406e;font-weight:600}.format-toolbar button{border:1px solid #ddd3e9}.upload-zone{background:#f4f0fa;border-color:#c7b7dd}.template-button{background:#f6f3fa!important;color:#51406e!important;border:1px solid #e3d9ef!important;gap:10px}.template-button:hover:not(:disabled){background:#e9e1f5!important}.template-symbol{width:36px;min-width:36px;overflow:hidden}.block-summary small,.block-body>.row h3{color:#666172}
.home-grid>.home-support{max-height:none;overflow:visible;top:var(--sticky-top,16px)}
@media(min-width:1000px){.builder-grid{grid-template-columns:minmax(0,1fr) 260px}.builder-content{grid-column:1;grid-row:1}.block-toolbox{grid-column:2;grid-row:1;padding-bottom:110px}.layout.nav-collapsed{grid-template-columns:76px minmax(0,1fr)}.layout.nav-collapsed .sidebar{width:76px;padding:20px 10px}.nav-collapsed .sidebar .brand span,.nav-collapsed .sidebar .nav>span,.nav-collapsed .sidebar .profile>div{display:none}.nav-collapsed .sidebar .brand{justify-content:center;padding:0}.nav-collapsed .sidebar .nav{justify-content:center;padding:12px}.nav-collapsed .sidebar .profile{justify-content:center}.sidebar-collapse{display:flex;justify-content:center;align-self:flex-end}.editor-savebar{gap:14px;flex-wrap:wrap}.editor-savebar>.row{gap:8px}.editor-savebar>.hint{flex:1;min-width:180px}}
@media(max-width:999px){.sidebar-collapse{display:none}.builder-grid{grid-template-columns:1fr}.builder-content,.block-toolbox{grid-column:auto;grid-row:auto}.block-toolbox{order:2}.editor-savebar{position:static;margin-top:20px}.home-grid>.home-support{top:auto}}
.lesson-builder,.block-accordion{overflow-anchor:none}.block-accordion{scroll-margin-top:20px}.block-accordion[open]>.block-summary{position:sticky;top:12px;z-index:3;background:#fff;border-radius:20px 20px 0 0;border-bottom:1px solid #e3d9ed}.blank-block{display:none}.room-status{display:flex;justify-content:space-between;gap:12px;color:#666172;font-size:12px;margin:12px 0 20px}.room-stage{width:100%;padding:0 30px 110px 0}.shared-canvas{width:min(840px,100%);max-width:100%;margin:auto}.shared-canvas .worksheet-exercise{padding:24px;border-radius:22px;scroll-margin-top:24px;margin-bottom:20px}.shared-canvas .worksheet-section-head{gap:14px;margin-bottom:18px}.shared-canvas .worksheet-section-head h2{font-size:24px;line-height:1.35;margin:0;letter-spacing:-.5px}.shared-canvas .rich-text{font-size:16px;line-height:1.75}.shared-canvas .rich-text p{font-size:16px;line-height:1.75}.shared-canvas .worksheet-prompt:not(.tone-plain){padding:18px}.shared-canvas .lesson-passport{display:block;padding:22px;margin-bottom:20px}.shared-canvas .lesson-passport p{font-size:15px}.shared-canvas .room-image{width:100%;margin:18px 0;overflow:visible;border-radius:14px}.shared-image{display:block;width:100%;height:auto;max-height:none;border-radius:14px}.shared-canvas label{font-size:14px;margin:18px 0 8px}.shared-canvas .choice{padding:14px 16px;font-size:16px;min-height:52px;margin:10px 0}.shared-canvas textarea{height:130px;min-height:130px;resize:none}.shared-canvas .hint{font-size:13px}.shared-canvas .observed-response{display:contents;border:0;padding:0;margin:0}.shared-canvas input:disabled,.shared-canvas textarea:disabled{opacity:1;color:#292633;background:#fff;-webkit-text-fill-color:#292633}.shared-canvas button:disabled{opacity:1}.room-anchor{position:relative;min-width:0}.annotation-layer,.annotation-cursors{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;z-index:4}.annotation-cursors{z-index:5}.shared-canvas.is-drawing{cursor:crosshair;touch-action:none}.shared-canvas.is-drawing *{cursor:crosshair!important}.shared-peer-cursor{position:absolute;color:#6550be;pointer-events:none;transform:translate(-3px,-2px)}.shared-peer-cursor.student{color:#24745a}.shared-peer-cursor small{display:block;background:currentColor;border-radius:7px;padding:3px 8px;white-space:nowrap;font-size:12px;color:#fff;background:#6550be}.shared-peer-cursor.student small{background:#24745a}.room-dock{position:fixed;bottom:20px;left:calc(50% + 120px);transform:translateX(-50%);display:flex;align-items:center;gap:4px;padding:8px;background:#fffffff5;backdrop-filter:blur(14px);border:1px solid #d9d0e5;border-radius:17px;box-shadow:0 10px 40px #30223d1f;z-index:24;max-width:calc(100vw - 28px)}.room-tool-icon{display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px;width:40px;height:40px;padding:8px;background:transparent;color:#655a77;border:0;border-radius:10px;flex-shrink:0}.room-tool-icon:hover:not(:disabled){background:#eee7f7;color:#46335f}.room-tool-icon[aria-pressed=true]{background:#e6dbf5;color:#4e3279}.room-follow-button{background:#eee8f7;color:#503a71;border:1px solid #ded3ec;padding:9px 14px;font-size:13px;white-space:nowrap;min-height:40px}.room-follow-button:hover:not(:disabled){background:#e4d8f2;color:#3d265c}.room-follow-button[aria-pressed=true]{background:#6550be;color:#fff}.dock-divider{height:24px;width:1px;background:#ded6e8;margin:0 4px}.room-minimap{position:fixed;right:15px;top:50%;transform:translateY(-50%);z-index:20;display:flex;flex-direction:column;gap:3px;max-height:65dvh;overflow:auto;padding:6px 0}.room-minimap button{position:relative;min-height:12px;height:12px;min-width:30px;width:30px;border:0;background:transparent;padding:4px;display:flex;justify-content:flex-end}.room-minimap button>span{width:13px;height:3px;background:#bcb2cd;border-radius:3px;transition:width .15s,background .15s}.room-minimap button.active>span{width:25px;background:#6550be}.room-minimap button:hover:not(:disabled){background:transparent}.room-minimap button:hover>span{width:25px;background:#806aab}.room-minimap button::before{content:attr(data-label);position:fixed;right:36px;max-width:250px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:#3f3353;color:#fff;padding:7px 12px;border-radius:9px;font-size:12px;opacity:0;pointer-events:none;transform:translateY(-8px)}.room-minimap button:hover::before,.room-minimap button:focus-visible::before{opacity:1}.teacher-inspector{position:fixed;top:24px;bottom:96px;right:52px;width:min(360px,calc(100vw - 70px));z-index:23;background:#fff;border:1px solid #d9cde7;border-radius:20px;padding:22px;box-shadow:0 12px 50px #30203f26;overflow:auto}.teacher-inspector[hidden]{display:none}.teacher-inspector h3{margin-top:24px}.marker-colors{display:flex;gap:16px;justify-content:center}.marker-colors label{margin:0;position:relative;cursor:pointer}.marker-colors input{position:absolute;opacity:0;width:1px;height:1px}.marker-colors span{display:block;width:40px;height:40px;border-radius:50%;background:var(--swatch);border:4px solid white;outline:1px solid #ddd}.marker-colors input:checked+span{outline:3px solid #6550be}.marker-colors input:focus-visible+span{outline:3px solid #292633}
@media(max-width:999px){.room-dock{left:50%;bottom:12px}.room-status{font-size:11px;flex-wrap:wrap}.room-stage{padding-right:20px}.room-minimap{right:5px}.room-tool-icon{width:34px;min-width:34px}.room-dock{gap:1px;flex-wrap:wrap;justify-content:center}.room-follow-button{font-size:12px;padding:8px 10px}.teacher-inspector{right:34px;top:86px;bottom:125px}.shared-canvas .worksheet-exercise{padding:24px}.shared-canvas .lesson-passport{padding:22px}}
/* Ни один скроллбар не резервирует белую дорожку или системные стрелки. */
*{scrollbar-width:auto;scrollbar-color:#a092b8 transparent}*::-webkit-scrollbar{width:6px;height:6px}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:#a092b880;border:0;border-radius:99px}*::-webkit-scrollbar-button{display:none;width:0;height:0}.room-minimap{overflow:visible}.room-minimap button{flex-shrink:1}.room-minimap{right:14px}.room-stage{padding-right:34px}
.audio-author-tools{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 12px}.voice-demo{padding:12px;background:#f0eaf7;border-radius:12px;margin:12px 0;font-size:13px}.voice-demo[hidden]{display:none}.voice-demo audio{width:100%}.dialogue-dialog{width:min(760px,calc(100vw - 28px))}.dialogue-builder h3{margin-top:26px}.dialogue-role{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;padding:16px;background:#f5f1fa;border:1px solid #e0d7eb;border-radius:14px;margin:14px 0}.dialogue-role label{margin:0}.dialogue-role>.voice-demo{grid-column:1/-1;margin:0}.dialogue-role>.voice-demo:empty{display:none}.dialogue-line{display:grid;grid-template-columns:160px 1fr 40px;gap:12px;align-items:start;border:1px solid #ded5e9;border-radius:14px;padding:16px;margin:14px 0}.dialogue-line label{margin:0}.dialogue-line textarea{min-height:85px;max-height:160px}.dialogue-line>.icon-button{margin-top:28px}.editor-savebar .hint{max-width:320px}.sidebar-collapse{margin:-12px 0 -8px}
@media(max-width:560px){.dialogue-role,.dialogue-line{grid-template-columns:1fr}.dialogue-line>.icon-button{margin:0;justify-self:end}.dialogue-role>.voice-demo{grid-column:auto}.editor-savebar .hint{max-width:none}}
.brand-logo{width:36px;height:36px;object-fit:contain;flex-shrink:0;transform:scale(1.3)}.auth-card .brand-logo{width:44px;height:44px}.nav-collapsed .brand-logo{width:36px;height:36px}
.shared-canvas .block-number{width:36px;min-width:36px;height:36px;min-height:36px;font-size:16px;border-radius:12px}.shared-canvas .worksheet-section-head{min-height:36px}.shared-canvas .speaking-notice{padding:20px;gap:14px}.shared-canvas .speaking-notice p{font-size:14px;margin:0}.shared-canvas .rich-text h2{font-size:25px}.shared-canvas .rich-text h3{font-size:21px}
.notice p{color:var(--color-muted)}.student-row .danger{color:#963c45;background:#fbefef;border:1px solid #e8c9cc}.student-row .danger:hover:not(:disabled){color:#7e2632;background:#f5dfe3}.error{color:#a33243}.dialogue-summary{padding:16px;background:#f0eaf8;border:1px solid #d7c9e7;border-radius:14px;margin:14px 0}.dialogue-summary p{font-size:14px;color:#51406e;margin:8px 0}.dialogue-summary summary{font-size:13px;font-weight:600;color:#51406e}.task-hints{margin-bottom:24px!important}.shared-canvas .room-finish{padding:24px;font-size:15px}.shared-canvas .room-finish button{opacity:1;min-height:44px}.shared-canvas .room-finish p{font-size:13px}

/* Локальный шрифт общего холста; без запросов к сторонним сервисам. */
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:400;src:url('/assets/fonts/nunito-latin-400-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:400;src:url('/assets/fonts/nunito-cyrillic-400-normal.woff2') format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:600;src:url('/assets/fonts/nunito-latin-600-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:600;src:url('/assets/fonts/nunito-cyrillic-600-normal.woff2') format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:700;src:url('/assets/fonts/nunito-latin-700-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:RoomNunito;font-style:normal;font-display:swap;font-weight:700;src:url('/assets/fonts/nunito-cyrillic-700-normal.woff2') format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
.shared-canvas,.shared-canvas *{font-family:RoomNunito,Arial,sans-serif!important}

/* Переключатель на границе меню, вне ряда навигационных пунктов. */
.sidebar-body{display:contents}
.sidebar-toggle-tooltip{position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);white-space:nowrap;padding:7px 11px;background:#3f3352;color:#fff;border-radius:8px;font-size:12px;line-height:1.4;box-shadow:0 4px 16px #30243e18;opacity:0;visibility:hidden;pointer-events:none}
@media(min-width:1000px){
 .layout .sidebar{overflow:visible}
 .layout .sidebar-body{display:flex;flex-direction:column;align-items:stretch;gap:24px;flex:1;min-height:0;overflow:auto}
 .layout .sidebar .sidebar-collapse{position:absolute;right:-16px;top:26px;z-index:12;display:flex;align-items:center;justify-content:center;width:32px;height:32px;min-width:32px;min-height:32px;padding:0;margin:0;border:1px solid #ded7e8;border-radius:50%;background:#fff;color:#6d607f;box-shadow:0 3px 10px #3420440d;align-self:auto}
 .layout .sidebar .sidebar-collapse::before{content:'';position:absolute;inset:-6px;border-radius:50%}
 .layout .sidebar .sidebar-collapse:hover{background:#f1ebf8;color:#503574;border-color:#c5b3dc}
 .layout .sidebar .sidebar-collapse:focus-visible{outline:3px solid #9d85c5;outline-offset:3px}
 .sidebar-collapse:hover .sidebar-toggle-tooltip,.sidebar-collapse:focus-visible .sidebar-toggle-tooltip{opacity:1;visibility:visible}
 .sidebar-collapse svg{flex-shrink:0;transition:transform .18s}
 .layout.nav-collapsed .sidebar-collapse{top:22px}
 .nav-collapsed .sidebar-collapse svg{transform:rotate(180deg)}
}
@media(max-width:999px){.layout .sidebar .sidebar-collapse{display:none}}
@media(prefers-reduced-motion:reduce){.sidebar-collapse svg{transition:none}}

.video-block{width:100%;margin:16px 0;overflow:hidden;border-radius:16px;background:#111;}
.video-block video,.video-block iframe{display:block;width:100%;border:0;}
.video-block iframe{aspect-ratio:16/9;}
.video-block video{max-height:70vh;}
.room-overlay-global{position:fixed;inset:0;z-index:60;pointer-events:none;overflow:visible}.room-overlay-global>svg{position:absolute;inset:0;width:100%;height:100%;display:block;overflow:visible}.room-overlay-global>[data-global-cursors]{position:absolute;inset:0;pointer-events:none}.room-dock{z-index:90}html.room-drawing-mode .room-stage{touch-action:none}html.room-drawing-mode .room-stage *{cursor:crosshair!important}html.room-drawing-mode .room-dock *,html.room-drawing-mode dialog *,html.room-drawing-mode .custom-scrollbar{cursor:auto!important}

/* Рабочие инструменты урока. Цвета в CSS совместимы с политикой CSP. */
.marker-purple{--swatch:#6550be}.marker-coral{--swatch:#bf4954}.marker-green{--swatch:#24745a}.marker-blue{--swatch:#346ba1}.marker-amber{--swatch:#a46c17}
.marker-colors label{display:block}.marker-colors span{background-color:var(--swatch)}
.block-settings{margin-left:auto;min-width:42px;min-height:42px;font-size:26px;line-height:1;padding:4px 10px;flex-shrink:0}.worksheet-section-head h2{flex:1}
.moodboard-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:16px}.moodboard-stage{padding:0 0 110px}.moodboard-viewport{height:70dvh;min-height:420px;overflow:auto;border:1px solid #d7cbe8;border-radius:18px;background:#f5f2fa;overscroll-behavior:contain}.moodboard-sizer{position:relative}.moodboard-plane{position:absolute;top:0;left:0;width:4000px;height:16000px;transform-origin:top left;background-image:radial-gradient(#cfc2df 1px,transparent 1px);background-size:24px 24px}.moodboard-lesson{position:static!important;width:auto!important;max-width:none!important;margin:0}.moodboard-lesson>[data-shared-block]{position:absolute;width:620px;max-width:none;margin:0;box-shadow:0 8px 24px #30223d12}.board-handle{display:block;width:100%;text-align:left;font-size:12px;min-height:36px;padding:8px 12px;margin-bottom:14px;background:#eee8f6;color:#59466f;border:1px solid #e0d4ed;cursor:grab!important;touch-action:none}.board-handle:active{cursor:grabbing!important}.board-item{position:absolute;width:300px;padding:16px;background:#fff7d8;border:1px solid #eadca8;border-top:5px solid var(--swatch);border-radius:14px;box-shadow:0 6px 20px #30223d14;overflow-wrap:anywhere}.board-item p{white-space:pre-wrap}.board-item img{display:block;width:100%;height:auto;border-radius:8px}.board-image{background:#fff}.board-item-actions{display:flex;gap:8px;margin-top:16px}.board-item-actions button{font-size:12px;padding:8px 10px}.moodboard-stage~.room-minimap{display:none}.room-drawing-mode .block-settings,.room-drawing-mode .board-item-actions *{cursor:pointer!important}
.vocabulary-editor{margin-top:24px;padding:22px;border:1px solid #ded4ed;border-radius:16px;background:#faf8fd}.vocabulary-editor h2{margin-top:0}.vocabulary-row{display:grid;grid-template-columns:1fr 1fr 1.4fr 42px;align-items:end;gap:12px;padding:14px 0;border-bottom:1px solid #e3dbea}.vocabulary-row label{margin:0;min-width:0;font-size:13px}.vocabulary-row input{margin-bottom:0}.vocabulary-row>button{margin-bottom:0;min-height:46px}.vocabulary-fields>.row{margin-top:16px}.app-dialog:has(.vocabulary-fields){width:min(880px,calc(100vw - 32px));max-width:880px}.app-dialog .vocabulary-row{grid-template-columns:1fr 1fr}.app-dialog .vocabulary-row label:nth-child(3){grid-column:1}.app-dialog .vocabulary-row>button{justify-self:end}.block-toolbox .editor-outline{overflow:visible;max-height:none}.block-toolbox{scrollbar-width:thin}
@media(max-width:700px){.vocabulary-row{grid-template-columns:1fr 42px}.vocabulary-row label{grid-column:1}.vocabulary-row>button{grid-column:2;grid-row:1/4;align-self:start}.app-dialog .vocabulary-row{grid-template-columns:1fr 42px}.room-dock{left:50%;overflow-x:auto;justify-content:flex-start}.room-follow-button{max-width:125px;white-space:normal;font-size:11px}.moodboard-toolbar .hint{width:100%}.moodboard-viewport{min-height:360px}}
.textbook-upload{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:end}.textbook-upload button{justify-self:start}.textbook-search{max-width:340px}.textbook-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:20px}.textbook-card{display:flex;gap:20px;padding:20px;border:1px solid var(--color-border);border-radius:20px}.textbook-card h3{margin:0 0 8px}.textbook-card p{overflow-wrap:anywhere}.textbook-cover{width:76px;min-width:76px;height:112px;background:#ede8fa;color:#6550be;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}.textbook-cover .icon{width:32px;height:32px}.textbook-toolbar{display:flex;justify-content:space-between;gap:20px;align-items:end;flex-wrap:wrap}.textbook-toolbar form{display:flex;gap:12px;align-items:end}.textbook-toolbar label{margin:0;max-width:160px}.textbook-reader .button{display:inline-flex;align-items:center;text-decoration:none;padding:12px 16px;border-radius:12px}@media(max-width:700px){.textbook-upload{grid-template-columns:1fr}.textbook-grid{grid-template-columns:1fr}.textbook-toolbar form{flex-wrap:wrap}.textbook-search{width:100%}.textbook-card{padding:16px}}
/* Единая панель PDF: номер, переход и стрелки выровнены в одну строку. */
.textbook-reader{padding:0;border:0;background:transparent;min-width:0}
.pdf-toolbar{position:sticky;top:12px;z-index:9;background:#fffffff5;backdrop-filter:blur(16px);border:1px solid var(--color-border);border-radius:18px;padding:14px 16px;box-shadow:0 6px 24px #30233f0b}
.pdf-toolbar-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 20px}
.pdf-controls{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin:0}
.pdf-page-nav,.pdf-zoom,.pdf-page-nav form{display:flex;align-items:center;gap:8px;margin:0}
.pdf-page-nav label{display:flex;align-items:center;gap:8px;margin:0;max-width:none;font-size:13px;white-space:nowrap}
.pdf-page-nav input{width:64px;height:40px;min-height:40px;margin:0;padding:8px 10px;font-size:14px;text-align:center;line-height:1.4;appearance:textfield;-moz-appearance:textfield}
.pdf-page-nav input::-webkit-inner-spin-button,.pdf-page-nav input::-webkit-outer-spin-button{appearance:none;margin:0}
.pdf-controls button{height:40px;min-height:40px;min-width:40px;margin:0;padding:8px 12px;line-height:1.4;flex-shrink:0}
.pdf-page-nav [data-pdf-total]{font-size:13px;color:var(--color-muted);white-space:nowrap}
.pdf-zoom{border-left:1px solid var(--color-border);padding-left:16px}
.pdf-toolbar .textbook-toolbar{display:flex;align-items:center;gap:8px;float:none;margin:0 0 0 auto}
.pdf-toolbar .textbook-toolbar .button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;height:40px;margin:0;padding:8px 12px;font-size:13px;line-height:1.4;border-radius:12px;white-space:nowrap}
.pdf-toolbar [data-pdf-status]{margin:10px 0 0;font-size:12px;line-height:1.5}
.pdf-pages{display:flex;flex-direction:column;gap:28px;max-width:100%;margin:0 auto;padding-bottom:36px;overflow:visible}
.pdf-page-block{min-width:0;scroll-margin-top:160px}
.pdf-page-caption{margin:0 0 8px;color:var(--color-muted);font-size:12px}
.pdf-page-paper{width:100%;background:#fff;border:1px solid var(--color-border);border-radius:8px;box-shadow:0 5px 24px #2727350d;overflow:hidden}
.pdf-page-paper canvas{display:block;width:100%;height:auto}
.pdf-reading-hint{margin:18px 0 24px}
@media(max-width:999px){.pdf-toolbar{top:90px}.pdf-page-block{scroll-margin-top:230px}}
@media(max-width:560px){
 .pdf-toolbar{top:82px;padding:10px;border-radius:14px}
 .pdf-toolbar-row{gap:8px}.pdf-controls{display:contents}
 .pdf-page-nav{width:100%;justify-content:space-between;gap:5px}.pdf-page-nav form{gap:5px;flex:1;justify-content:center}
 .pdf-page-nav label{font-size:12px;gap:5px}.pdf-page-nav input{width:44px;height:36px;min-height:36px;padding:6px;font-size:13px}
 .pdf-controls button{height:36px;min-height:36px;min-width:32px;padding:6px 8px;font-size:12px}
 .pdf-page-nav [data-pdf-total]{font-size:12px}.pdf-zoom{border:0;padding:0;gap:5px}
 .pdf-toolbar .textbook-toolbar{gap:4px}.pdf-toolbar .textbook-toolbar .button{height:32px;min-height:32px;padding:5px 8px;font-size:12px}
 .pdf-toolbar [data-pdf-status]{margin-top:7px;font-size:11px}.pdf-pages{gap:20px}.pdf-page-paper{border-radius:5px}
}
/* Chromium: стандартные свойства иначе перекрывают оформленные псевдоэлементы. */
@supports selector(::-webkit-scrollbar){*{scrollbar-width:auto;scrollbar-color:auto}*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-track{background:#f0edf5;border-radius:99px}*::-webkit-scrollbar-thumb{background:#aaa0be;border:2px solid #f0edf5;border-radius:99px}*::-webkit-scrollbar-thumb:hover{background:#7d6c9a}*::-webkit-scrollbar-button{display:none;width:0;height:0}}
@supports not selector(::-webkit-scrollbar){*{scrollbar-width:thin;scrollbar-color:#aaa0be #f0edf5}}
html{scrollbar-gutter:stable}
@media(forced-colors:active){*{scrollbar-color:auto}*::-webkit-scrollbar-thumb{background:ButtonText;border-color:Canvas}*::-webkit-scrollbar-track{background:Canvas}}
/* Общие загрузки используют тот же стиль, что остальные кнопки. */
input[type=file]{padding:6px;font-size:13px;color:var(--color-muted);max-width:100%;min-width:0}
input[type=file]::file-selector-button{font:600 13px var(--font-body);color:#6550be;background:#f0ebfa;border:1px solid #e2d9ef;border-radius:10px;padding:9px 12px;margin-right:12px;cursor:pointer}
input[type=file]::file-selector-button:hover{background:#e6dcf5}
.textbook-upload label{margin-bottom:0;min-width:0}.textbook-upload input{margin-bottom:0}.textbook-card>div:last-child{min-width:0}.textbook-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr))}.textbook-search input{margin-bottom:0}
.textbook-card{flex-direction:column;gap:0;padding:0;overflow:hidden}
.textbook-card>div:last-child{padding:20px;display:flex;flex-direction:column;flex:1}
.textbook-card>div:last-child>.row{margin-top:auto;flex-wrap:wrap;gap:10px;padding-top:12px}
.textbook-cover{width:100%;min-width:0;height:auto;aspect-ratio:16/9;border-radius:0;background:linear-gradient(135deg,#ede8fa,#e2edfc);gap:10px;position:relative;overflow:hidden}
.textbook-cover .icon{width:42px;height:42px}
.textbook-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
@media(max-width:700px){.textbook-card{padding:0}.textbook-card>div:last-child{padding:16px}}

@media(max-width:700px){.textbook-upload{grid-template-columns:1fr}.textbook-grid{grid-template-columns:1fr}.textbook-upload button{justify-self:stretch}.textbook-search{max-width:none;width:100%}}
.disk-settings details{margin-top:16px}.disk-settings ol{padding-left:24px;line-height:1.7}.disk-settings li{margin-bottom:14px}.disk-auth-link{display:flex;align-items:end;gap:12px;margin-top:12px;flex-wrap:wrap}.disk-auth-link label{flex:1;min-width:220px;margin:0}.disk-auth-link input{margin-bottom:0}.disk-settings .button{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:10px 14px;min-height:44px;text-decoration:none}.disk-settings a[hidden]{display:none}.disk-settings form{display:flex;align-items:end;gap:12px;flex-wrap:wrap;margin-top:16px}.disk-settings form label{flex:1;min-width:240px;margin:0}.disk-settings form input{margin-bottom:0}.disk-settings code{overflow-wrap:anywhere}.disk-settings [role=status]:empty{display:none}