.studio-nav{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:30px}.studio-nav a{font-size:14px;padding:9px 13px;border-radius:8px;color:#595970;background:#fff;border:1px solid var(--line)}.studio-nav a:hover{background:#efecff;text-decoration:none;color:var(--purple)}.editor-layout{display:grid;grid-template-columns:minmax(0,1fr) 265px;gap:25px}.editor-guide{align-self:start;position:sticky;top:25px}.editor-guide p{font-size:14px;color:#73758a}.difficulty-list{display:flex;gap:8px;flex-wrap:wrap}.ege{background:#e9e6ff;color:#6048c4}.grave{background:#292b3e;color:#f2f0ff}.editor-optional{border:1px solid var(--line);padding:18px;border-radius:10px;margin:25px 0}.editor-optional summary,.course-settings summary{font-weight:650;cursor:pointer}.editor-optional[open] summary{margin-bottom:20px}.editor-optional textarea{margin-bottom:18px}.editor-optional input{margin-bottom:15px}.editable-block{margin-bottom:16px}.block-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:20px}.block-label{font-size:13px;color:var(--muted);font-weight:600}.inline-actions{display:flex;gap:10px;align-items:center;margin-left:auto}.inline-actions form{display:flex;gap:6px}.inline-actions button,.inline-actions a,.delete-menu summary{border:1px solid var(--line);border-radius:6px;font-size:12px;color:#61617a;background:#f8f8fc;padding:6px 10px;cursor:pointer;white-space:nowrap}.delete-menu{position:relative}.delete-menu[open] form{position:absolute;right:0;top:38px;padding:12px;background:white;border:1px solid var(--line);border-radius:8px;z-index:2;box-shadow:0 5px 30px #23234415}.delete-menu button{color:#b34d5f}.add-blocks{border:1px dashed #bcb4df;border-radius:12px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap;padding:20px;margin:23px 0;background:#f3f0ff}.add-blocks a{background:white;border:1px solid #ded8f4;border-radius:8px;padding:10px 15px;font-size:14px;font-weight:600}.content-block figure{margin:22px 0}.content-block img,.editor-image,.step-image{max-width:100%;height:auto;display:block;border-radius:9px;max-height:750px;object-fit:contain}.editor-image{max-height:330px}.content-block figcaption{font-size:14px;color:var(--muted);margin-top:10px}.content-block h2{margin-top:30px}.module-editor{margin-bottom:22px}.structure-row{display:flex;gap:15px;align-items:center;padding:19px 0;border-top:1px solid var(--line)}.structure-row>div:nth-child(2){flex:1}.structure-row small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.step-type{width:36px;height:36px;border-radius:8px;display:grid;place-items:center;flex-shrink:0;background:#efecff;color:var(--purple);font-weight:650}.add-row{display:block;padding:17px;text-align:center;font-size:14px;border:1px dashed #d8d3eb;border-radius:9px;margin-top:13px}.course-settings{margin-bottom:25px}.lms-course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:25px;max-width:1060px}.lms-course-card{background:white;border:1px solid var(--line);border-radius:17px;overflow:hidden}.lms-cover{height:255px;background:#173f37;position:relative;overflow:hidden;display:block;padding:30px 34px;color:white}.lms-cover:hover{text-decoration:none}.lms-cover img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.cover-label{font-size:11px;letter-spacing:2px;color:#9ec7ac;font-weight:600}.lms-cover strong{display:block;font-size:44px;line-height:1.02;letter-spacing:-1.8px;margin-top:23px}.lms-cover strong span{color:#cdf488}.cover-number{position:absolute;right:30px;bottom:24px;font-size:122px;font-weight:750;letter-spacing:-10px;color:#4a6c56;line-height:1}.course-card-body{padding:27px}.course-card-body h2{margin-top:17px;font-size:23px}.course-card-body h2 a{color:var(--ink)}.course-card-body p{font-size:14px;color:#777989}.course-card-stats{display:flex;gap:20px;font-size:13px;color:#818491;margin:20px 0}.course-card-body .button{margin-top:20px;width:100%}.green-button{background:#25874e;border-color:#25874e;color:white}.green-button:hover{background:#1d703f;border-color:#1d703f}.button:disabled{opacity:.55;cursor:not-allowed;transform:none}.lms-hero{display:flex;justify-content:space-between;gap:40px;background:#153d34;color:white;border-radius:18px;padding:38px}.lms-hero h1{max-width:700px;margin:19px 0;font-size:37px}.lms-hero p{color:#b7d0c5;max-width:660px}.lms-hero .course-card-stats{color:#b2c9bf}.lms-hero .course-progress{flex-shrink:0}.lms-module{margin-bottom:20px}.module-title{display:flex;gap:19px;align-items:flex-start;margin-bottom:20px}.module-title>span{font-size:32px;letter-spacing:-1px;font-weight:650;color:#a8b7aa;line-height:1.2}.module-title h2{font-size:22px;margin-bottom:6px}.module-title p{margin:0}.lms-lesson-row{display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding:18px 0}.lms-lesson-row>div:first-child>span{display:block;color:var(--muted);font-size:12px;margin-top:5px}.lms-lesson-row strong{font-size:15px}.mini-steps{display:flex;gap:5px;flex-wrap:wrap}.mini-steps a,.mini-steps>span{display:grid;place-items:center;width:29px;height:27px;background:#edf0ee;color:#687a6e;border-radius:4px;font-size:13px;border:1px solid #e0e6e2}.mini-steps a.complete{background:#d5ecd3;border-color:#c2debf;color:#3b793b}.mini-steps a.current{background:#26854d;border-color:#26854d;color:#fff}.mini-steps a:hover{border-color:#26854d;text-decoration:none}.course-mode>.sidebar{display:none}.course-mode .main-shell{margin-left:0}.course-mode .topbar{height:65px;position:sticky;top:0;z-index:10;padding:0 28px;background:white}.course-mode .topbar>div{display:flex;gap:28px;align-items:center;min-width:0}.player-brand{font-size:26px!important;font-weight:800;letter-spacing:-1px;color:#262a33!important}.player-brand span{color:#25874e}.player-header-label{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-mode main{max-width:none;padding:0}.course-mode footer{margin-left:292px;background:#fff}.course-mode main> .notice{margin:20px 30px 20px 325px}.course-tree{position:fixed;top:65px;bottom:0;left:0;width:292px;background:#f4f6f5;border-right:1px solid #e2e7e3;padding:26px 22px;overflow-y:auto}.course-tree .back-link{color:#6e7b73;font-size:13px;margin-bottom:18px}.course-tree h3{font-size:17px;line-height:1.5;margin-bottom:25px}.tree-progress{display:flex;justify-content:space-between;font-size:12px;color:#64766b;margin:15px 0 8px}.course-tree progress{accent-color:#4a9945;margin-bottom:24px}.course-tree progress::-webkit-progress-value{background:#58a451}.tree-module{border-top:1px solid #dfe5e1;padding:18px 0}.tree-module summary{cursor:pointer;font-size:14px;font-weight:650;color:#424f47;line-height:1.5}.tree-lesson{padding:16px 8px 5px 13px;border-left:2px solid transparent;margin-top:8px}.tree-lesson.current{border-left-color:#26854d;background:#e8f0e9;border-radius:0 7px 7px 0}.tree-lesson strong{font-size:13px;font-weight:500;display:block;line-height:1.55;margin-bottom:12px;color:#5b6860}.course-tree .button{width:100%;font-size:12px;margin-top:15px}.step-workspace{margin-left:292px;max-width:1190px;padding:31px 55px 55px}.step-breadcrumb{font-size:12px;color:#7d8b82;margin-bottom:16px}.step-breadcrumb span{margin:0 10px;color:#bbc5bf}.step-head{display:flex;gap:25px;align-items:center;justify-content:space-between}.step-head h1{font-size:27px;letter-spacing:-.6px;line-height:1.35}.step-head>a{font-size:12px;white-space:nowrap;color:#27834e}.step-timeline{display:flex;gap:8px;padding:14px 0 30px;overflow-x:auto}.step-timeline a{width:50px;height:40px;position:relative;background:#edf0ee;border:1px solid #dfe5e1;color:#849089;display:flex;align-items:center;justify-content:center;gap:6px;border-radius:7px;font-size:21px;flex-shrink:0;text-decoration:none}.step-timeline a span{font-size:11px}.step-timeline a.active{background:#27894e;color:#fff;border-color:#27894e;box-shadow:0 4px 10px #27894e22}.step-timeline a.complete{background:#dcedd8;color:#45813d;border-color:#c7e1c1}.step-card{background:#fff;border:1px solid #e3e8e4;border-radius:13px;padding:32px 36px}.step-card h2{font-size:25px;line-height:1.45;margin-bottom:22px}.step-kind-label{font-size:12px;color:#7c8c82}.step-text{font-size:16px;line-height:1.85;color:#3b4840}.step-video{width:100%;max-height:510px;background:#15231a;border-radius:10px}.step-submit{display:flex;gap:20px;align-items:center;margin-top:24px}.step-submit strong{font-size:13px}.step-answer input[type=text],.step-answer input:not([type]){max-width:500px}.step-answer .quiz-option:has(input:checked){border-color:#6ebd75;background:#f2f8ef}.step-answer input{accent-color:#25874e}.step-card .notice{margin:23px 0 0}.step-card .solution summary{color:#27834e}.step-pagination{display:flex;justify-content:space-between;gap:20px;padding:24px 0;border-bottom:1px solid #e2e7e3;margin-bottom:34px}.step-pagination a{color:#558066;font-size:14px}.step-discussion{padding:8px 0}.step-discussion h2{font-size:21px}.step-discussion h2 span{font-size:15px;color:#9da79f;font-weight:400;margin-left:8px}.comment-form textarea{min-height:95px;border-color:#dce3dc;font-size:14px;background:white}.comment-form .button{margin-top:12px;font-size:13px;min-height:40px;padding:8px 17px}.comment{display:flex;gap:14px;padding:25px 0;border-bottom:1px solid #e3e8e4}.comment .avatar{background:#e0efdf;color:#4a8246;flex-shrink:0}.comment>div{min-width:0;flex:1}.comment-author{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:14px}.comment-author small{font-size:11px;color:#91a096}.comment p{font-size:14px;line-height:1.8;margin:10px 0;overflow-wrap:anywhere}.text-button{background:transparent;border:0;padding:0;font-size:12px;color:#88928b}.course-mode{background:#fafcf9}.content-block{break-inside:avoid}.inline-actions a:hover{background:#e9e5fa;text-decoration:none}
@media(max-width:1150px){.editor-layout{grid-template-columns:minmax(0,1fr)}.editor-guide{position:static;display:none}.step-workspace{padding:28px 30px}.lms-course-grid{grid-template-columns:1fr;max-width:700px}.lms-hero h1{font-size:29px}.inline-actions{gap:5px}.inline-actions button,.inline-actions a{padding:6px 8px}.structure-row{gap:10px}.structure-row strong{font-size:14px}}
@media(max-width:850px){.course-tree{width:245px;padding:22px 17px}.step-workspace{margin-left:245px;padding:24px}.course-mode footer{margin-left:245px}.step-card{padding:24px}.step-head{flex-wrap:wrap;gap:5px}.step-head h1{font-size:24px}.step-card h2{font-size:22px}.lms-hero{padding:28px;gap:20px}.lms-hero h1{font-size:28px}.structure-row{flex-wrap:wrap}.structure-row>.inline-actions{margin-left:50px}.lms-lesson-row{align-items:flex-start;flex-direction:column;gap:14px}.block-toolbar{flex-wrap:wrap}.step-breadcrumb{font-size:11px}.player-header-label{max-width:380px}.studio-nav a{font-size:12px}}
@media(max-width:650px){.course-tree{position:static;width:100%;border-right:0;border-bottom:1px solid #dfe7e1;padding:20px}.course-tree h3{font-size:15px;margin-bottom:12px}.course-tree .back-link{margin-bottom:10px}.course-tree .tree-module{padding:12px 0}.course-tree .tree-module:not([open]){display:none}.course-tree .tree-module[open] .tree-lesson:not(.current){display:none}.course-tree progress{margin-bottom:8px}.course-tree .tree-progress{margin-top:5px}.step-workspace{margin:0;padding:24px 17px}.course-mode footer{margin:0}.course-mode .topbar{padding:0 18px;height:58px}.course-mode .topbar>div{gap:10px}.player-brand{font-size:24px!important}.player-header-label{display:none}.course-mode main>.notice{margin:15px}.step-card{padding:23px 19px}.step-card h2{font-size:21px}.step-card .section-heading{flex-wrap:wrap;gap:6px}.step-card .muted{font-size:11px}.step-text{font-size:15px}.step-submit{flex-wrap:wrap;gap:12px}.step-submit>.button{width:100%}.step-pagination a{font-size:12px}.step-discussion .section-heading{flex-wrap:wrap;gap:4px}.step-discussion .section-heading>.muted{font-size:12px}.lms-hero{display:block;padding:27px}.lms-hero h1{font-size:28px}.lms-hero .course-progress{width:auto;display:flex;gap:15px;align-items:center;margin-top:25px}.lms-hero .course-progress .micro-track{display:none}.lms-hero .course-progress strong{font-size:35px}.lms-hero .course-progress strong small{font-size:20px}.lms-hero p{font-size:14px}.lms-course-grid{display:block}.lms-course-card{margin-bottom:20px}.lms-cover{height:230px;padding:26px}.course-card-body{padding:23px}.lms-hero .course-card-stats{font-size:12px;gap:12px;flex-wrap:wrap}.module-title{gap:13px}.module-title h2{font-size:19px}.module-title>span{font-size:27px}.lms-module{padding:21px}.lms-lesson-row strong{font-size:14px}.studio-nav{gap:6px;margin-bottom:25px}.studio-nav a{padding:8px 10px;font-size:11px}.inline-actions{margin-left:0;flex-wrap:wrap}.inline-actions button,.inline-actions a,.delete-menu summary{font-size:11px}.add-blocks{gap:7px;padding:14px}.add-blocks a{font-size:12px;padding:9px 12px}.editor-optional{padding:15px}.step-head h1{font-size:23px}.step-timeline{padding-bottom:25px}.editor-layout .panel{padding:20px}.course-settings{padding:20px}.structure-row>.inline-actions{margin-left:0;width:100%;justify-content:flex-end}}
@media print{.content-block img{max-height:180mm;max-width:100%}.content-block figcaption{font-size:10pt}}
.composer-section{margin-top:22px}.composer-section h2{margin-top:9px}.composer-section textarea{min-height:140px}.editor-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.editor-actions form{margin:0}.upload-tile{min-width:0;background:#f6f5fb;border:1px dashed #c8c1df;padding:20px;border-radius:12px;margin-top:18px}.upload-tile input{font-size:12px;max-width:100%;min-width:0}.upload-tile small{display:block;color:var(--muted);margin-top:10px;font-size:12px}.editor-layout>*,.form-grid>*{min-width:0}.compact-empty{padding:22px!important;font-size:14px}.block-kind-tabs{flex-wrap:wrap}.quick-add{margin-top:20px}.quick-add>summary{cursor:pointer;color:var(--purple);border:1px dashed #c8c1df;border-radius:12px;padding:18px;background:#f7f5ff;font-weight:600}.readiness{display:flex;gap:25px;align-items:center;justify-content:space-between;margin-top:22px}.readiness h2{margin-top:10px}.option-row{display:grid;grid-template-columns:32px minmax(0,1fr);gap:14px;padding:20px 0;border-bottom:1px solid var(--line)}.option-number{background:#eeebff;color:var(--purple);height:32px;display:grid;place-items:center;border-radius:8px}.option-controls{display:flex;gap:25px;flex-wrap:wrap;margin-top:10px}.option-controls label{display:flex;gap:8px;align-items:center;font-size:13px;margin:0}.option-controls input{width:17px;height:17px;accent-color:var(--purple)}.option-row textarea{min-height:65px;resize:vertical}.option-editor{margin-bottom:20px}.code-input,.code-field textarea{font-family:Consolas,'Courier New',monospace;tab-size:4;white-space:pre;line-height:1.6;font-size:14px}.python-block{background:#192230;color:#e3edf8;border:1px solid #29364b;border-radius:12px;overflow:hidden;margin:20px 0;max-width:100%}.code-caption{display:flex;justify-content:space-between;padding:11px 18px;background:#223045;font-size:12px;color:#acc3df;letter-spacing:.4px}.python-block pre{margin:0;padding:20px;overflow:auto;white-space:pre;tab-size:4;font:14px/1.7 Consolas,'Courier New',monospace;max-height:560px}.python-block code{background:transparent;color:inherit;padding:0;font:inherit}.errorlist{color:#b3314e}.readiness p{font-size:14px}
@media(max-width:650px){.readiness{display:block}.readiness form{margin-top:20px}.block-kind-tabs a{padding:8px 12px;font-size:12px}.upload-tile{padding:14px}.option-row{gap:8px;grid-template-columns:25px minmax(0,1fr)}.option-controls{gap:14px}.code-caption{font-size:10px}.python-block pre{font-size:12px;padding:14px}.editor-actions .button{font-size:12px}.readiness p{overflow-wrap:anywhere}}
@media print{.python-block{background:white;color:black;border-color:#ccc}.code-caption{background:#eee;color:black}.python-block pre{white-space:pre-wrap;max-height:none}}
.block-kind-tabs{display:flex;gap:9px;margin-bottom:24px}.block-kind-tabs a{padding:9px 19px;border:1px solid var(--line);background:white;border-radius:8px;color:var(--muted);font-size:14px}.block-kind-tabs .selected{background:var(--purple);color:white;border-color:var(--purple)}.upload-surface{border:1px dashed #c9c1e2;padding:30px 22px;border-radius:12px;background:#f7f5fe;margin-bottom:24px;text-align:center}.upload-icon{font-size:35px;color:var(--purple);display:block;margin-bottom:12px}.upload-surface input{background:white;font-size:13px}.current-upload{font-size:12px;overflow-wrap:anywhere;color:var(--muted)}.clear-upload{display:flex!important;gap:8px;align-items:center;font-size:12px!important;margin-top:12px}.clear-upload input{width:16px;height:16px}