.step-validation{display:grid;gap:3px;margin-top:10px;padding:9px 11px;border-radius:7px;font-size:12px;line-height:1.4}.step-validation.success{background:#eaf7f1;color:#207557}.step-validation.failure{background:#fdf0ed;color:#b7442c}
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700;800&display=swap');
.environment-banner{margin:18px 18px 0;padding:14px 18px;background:#fff;border:1px solid #dcd8d0;border-radius:10px;display:flex;gap:20px;align-items:center}.environment-status{display:flex;align-items:center;gap:2px;min-width:195px}.environment-status small{display:block;color:var(--muted);letter-spacing:1px;font-size:9px}.environment-status strong{font-size:13px}.environment-banner p{margin:0;color:var(--muted);font-size:13px;flex:1}.environment-banner .primary{margin:0;padding:9px 13px;font-size:12px}.environment-actions{margin-left:auto;display:flex;align-items:center;gap:14px}.environment-actions .secondary{padding:9px 13px;font-size:12px}.link-danger{border:0;background:transparent;color:#bd4b35;font-size:12px;font-weight:700;padding:8px 0}.banner-message{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;flex:1}.banner-message .spinner,.validation-progress .spinner{width:20px;height:20px;border-width:2px}
.lesson-workspace{max-width:1240px;margin:0 auto;padding:18px;display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,350px);gap:18px;align-items:start}.lesson-material,.validation-panel{background:#fff;border:1px solid #dcd8d0;border-radius:10px;padding:30px}.lesson-content{margin-top:18px;line-height:1.65}.lesson-content>:first-child{margin-top:0}.lesson-content h2,.lesson-content h3{font-family:Manrope}.steps{margin-top:30px}.validation-panel{position:sticky;top:18px}.validation-panel h2{font:700 22px/1.2 Manrope;margin:12px 0 9px}.validation-panel p{color:var(--muted);font-size:14px;line-height:1.5;margin:0 0 20px}.validation-panel .primary{margin:0;width:100%}.validation-panel .primary:disabled{background:#aeb5c0;cursor:not-allowed}.validation-progress{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-top:18px}.validation-result{margin-top:22px;padding:14px;border-radius:7px;background:#f7f8fa;color:var(--muted);font-size:13px}.validation-result.success{background:#eaf7f1;color:#207557}.validation-result.failure{background:#fdf0ed;color:#b7442c}.lesson-footer{margin-top:0}.lesson-footer>div:first-child{margin:auto}
@media(max-width:800px){.environment-banner{margin:12px;align-items:flex-start;flex-wrap:wrap}.environment-banner p{flex-basis:100%;order:3}.environment-actions{margin-left:0}.lesson-workspace{grid-template-columns:1fr;padding:12px}.lesson-material,.validation-panel{padding:22px}.validation-panel{position:static}.lesson-footer>div:first-child{grid-template-columns:auto minmax(100px,1fr) auto;width:100%}}
.guacamole-stream{width:100%;height:100%;min-height:560px;border:0;display:block;background:#111827}.stream-error{height:100%;display:grid;place-items:center;color:#fff}
:root{--ink:#14213d;--muted:#68748a;--cream:#f5f3ee;--paper:#fff;--accent:#dd542f;--green:#2c9b72;--line:#e4e1da}*{box-sizing:border-box}html,body{margin:0;background:var(--cream);color:var(--ink);font-family:'DM Sans',sans-serif}button,a{font:inherit}button{cursor:pointer}.app-shell>main{min-height:calc(100vh - 145px)}.topnav{height:78px;padding:0 max(4vw,30px);display:flex;align-items:center;background:#fff;border-bottom:1px solid var(--line);gap:60px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font:800 19px Manrope}.brand>span{background:var(--ink);color:#fff;padding:8px;border-radius:6px}.brand small{display:block;color:var(--accent);font-size:9px;letter-spacing:2.4px}.navlinks{display:flex;align-self:stretch}.navlinks a{display:grid;place-items:center;padding:0 22px;text-decoration:none;color:#526078;font-weight:600;font-size:14px}.navlinks a:first-child{color:var(--ink);border-bottom:3px solid var(--accent)}.profile{margin-left:auto;display:flex;align-items:center;gap:12px;text-align:right;font-size:13px}.profile small{display:block;color:var(--muted)}.profile>b{background:#e9ecec;border-radius:50%;width:39px;height:39px;display:grid;place-items:center}.hero{min-height:330px;background:var(--ink);color:#fff;padding:68px max(7vw,50px);display:flex;justify-content:space-between;align-items:center;position:relative;overflow:hidden}.hero:after{content:'R2';position:absolute;right:15%;top:-110px;font:800 360px Manrope;color:#fff;opacity:.025}.eyebrow{font-size:11px;letter-spacing:2.2px;font-weight:700;color:var(--accent)}.hero h1{font:700 clamp(34px,4vw,56px)/1.08 Manrope;margin:13px 0}.hero h1 em{color:#f0906e;font-style:normal}.hero p{color:#aeb9cc;max-width:610px;font-size:17px}.hero-stat{z-index:1;border-left:1px solid #41506d;padding-left:45px;display:grid;grid-template-columns:auto auto;gap:4px 15px;align-items:center}.hero-stat strong{font:700 34px Manrope}.hero-stat span{color:#b5c0d1}.hero-stat i{grid-column:1/-1;height:1px;background:#40506b;margin:15px 0}.content-section,.admin-page{max-width:1200px;margin:0 auto;padding:55px 30px 80px}.section-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:27px}.section-title h1,.section-title h2{font:700 30px Manrope;margin:7px 0}.progress-label{color:var(--muted);font-size:13px}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px}.course-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;display:grid;grid-template-columns:68px 1fr;gap:22px;box-shadow:0 8px 35px #25334d0b}.course-icon{width:64px;height:64px;background:#fbe9e2;color:var(--accent);border-radius:10px;display:grid;place-items:center;font:800 22px Manrope}.tag{font-size:10px;letter-spacing:1.5px;color:var(--green);font-weight:700}.course-card h3{font:700 21px Manrope;margin:7px 0}.course-card p{color:var(--muted);line-height:1.5}.course-card button{border:0;background:none;color:var(--accent);padding:8px 0;font-weight:700}.course-card button span{font-size:20px;margin-left:7px}.site-footer{padding:24px max(4vw,30px);border-top:1px solid var(--line);color:var(--muted);font-size:12px;display:flex;justify-content:space-between}.lesson-shell{min-height:calc(100vh - 78px);background:#eceae5}.lesson-header{padding:20px 34px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.lesson-header a{text-decoration:none;color:var(--accent);font-size:13px;margin-right:18px}.lesson-header span{color:var(--muted);font-size:13px}.lesson-header h1{font:700 24px Manrope;margin:6px 0 0}.timer{text-align:right}.timer small{display:block;color:var(--muted);letter-spacing:1px;font-size:9px}.timer strong{font:700 23px Manrope}.lesson-grid{display:grid;grid-template-columns:minmax(290px,340px) 1fr;gap:18px;padding:18px;min-height:610px}.instruction-panel,.sandbox-panel{background:#fff;border:1px solid #dcd8d0;border-radius:10px}.instruction-panel{padding:28px;overflow:auto}.instruction-panel>p{color:var(--muted);line-height:1.5}.steps{margin-top:28px}.step{display:flex;gap:14px;padding:15px 0;border-top:1px solid #eee}.step>b{flex:none;width:27px;height:27px;border:1px solid #ccd2dc;border-radius:50%;display:grid;place-items:center;font-size:12px}.step.done>b{background:var(--green);color:#fff;border-color:var(--green)}.step small{font-size:9px;letter-spacing:1px;color:var(--muted)}.step p{margin:4px 0;font-size:13px;line-height:1.35}.sandbox-panel{display:flex;flex-direction:column;overflow:hidden}.sandbox-toolbar{height:50px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 18px;font-size:12px}.sandbox-toolbar>div{display:flex;align-items:center;gap:9px}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#a7afbc;margin-right:8px}.status-dot.ready,.status-dot.inuse,.status-dot.success{background:var(--green);box-shadow:0 0 0 4px #2c9b7218}.status-dot.preparing,.status-dot.validating,.status-dot.reserved{background:#e9a83e}.status-dot.failed,.status-dot.failure{background:var(--accent)}.sandbox-empty{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:50px;background:radial-gradient(circle at center,#fff,#f7f8fa)}.sandbox-empty h2{font:700 24px Manrope;margin:15px 0 8px}.sandbox-empty p{color:var(--muted);max-width:490px}.sandbox-empty small{color:#8a95a6;margin-top:15px}.window-icon{font-size:44px;color:#7d8ba5}.primary,.secondary,.danger{border:0;border-radius:6px;padding:12px 18px;font-weight:700}.primary{background:var(--accent);color:#fff;margin-top:15px}.secondary{background:var(--ink);color:#fff}.danger{background:#fff;color:#bd4b35;border:1px solid #e6c8c1}.remote-canvas{flex:1;background:#1f2937;padding:22px;position:relative}.mock-app{height:100%;background:#eceff3;box-shadow:0 10px 30px #0007;color:#172033}.mock-title{background:#234e83;color:#fff;padding:8px 13px;font-size:12px}.mock-menu{background:#fff;padding:9px 15px;font-size:11px;border-bottom:1px solid #cbd1d8}.mock-body{display:grid;grid-template-columns:150px 1fr;min-height:440px}.mock-body nav{background:#dfe5ec;padding:25px 15px;line-height:2.4;font-size:12px}.mock-body>div{padding:25px}.mock-table{margin-top:25px;background:#fff;border:1px solid #cdd4dd;padding:14px;font-size:12px;line-height:3}.mock-table span{color:var(--green)}.validation-overlay{position:absolute;inset:0;background:#101827dd;color:#fff;display:flex;gap:15px;align-items:center;justify-content:center}.spinner{width:34px;height:34px;border:3px solid #d8dde6;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.lesson-footer{height:80px;background:#fff;border-top:1px solid var(--line);padding:0 25px;display:flex;align-items:center;justify-content:space-between}.lesson-footer>div:first-child{display:grid;grid-template-columns:auto 190px auto;gap:12px;align-items:center;font-size:12px}.progress-track{height:5px;background:#e3e5e8;border-radius:4px}.progress-track i{display:block;height:100%;background:var(--green);border-radius:4px}.actions{display:flex;gap:10px}.toast{position:fixed;right:25px;bottom:95px;background:#fff;padding:16px 22px;border-radius:8px;border-left:4px solid var(--accent);box-shadow:0 10px 30px #0002}.toast.success{border-color:var(--green)}.admin-table{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.table-row{display:grid;grid-template-columns:1.3fr .8fr 1.3fr .7fr .9fr 1.2fr;gap:14px;align-items:center;padding:17px 20px;border-top:1px solid var(--line);font-size:13px}.table-row span>small{display:block;color:var(--muted);margin-top:3px}.table-head{background:#f7f6f3;color:var(--muted);font-size:10px;font-weight:700;letter-spacing:1px;border:0}.mini{padding:6px 9px;border:1px solid #ccd1da;background:#fff;border-radius:4px;font-size:11px;margin-right:5px}.mini.danger{color:var(--accent)}.skeleton,.empty{padding:35px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--muted)}.page-loader{margin:40px}#blazor-error-ui{display:none}@media(max-width:800px){.navlinks{display:none}.hero{padding:45px 25px}.hero-stat{display:none}.lesson-grid{grid-template-columns:1fr}.instruction-panel{max-height:330px}.lesson-footer{height:auto;padding:15px;gap:15px;flex-wrap:wrap}.table-row{grid-template-columns:1fr 1fr}.table-head{display:none}}

.course-program{max-width:1050px;margin:0 auto;padding:48px 28px 80px}.program-header>a{color:var(--accent);text-decoration:none;font-weight:700}.program-header .eyebrow{display:block;margin-top:34px}.program-header h1{font:700 38px Manrope;margin:8px 0}.program-header p{color:var(--muted);max-width:700px}.program-module{margin-top:42px}.program-module h2{font:700 23px Manrope}.program-lessons{display:grid;gap:10px}.program-lesson{display:grid;grid-template-columns:46px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px;text-decoration:none;color:var(--ink)}.program-lesson:hover{border-color:#c9c2b7}.program-lesson.locked{background:#efeee9;color:#7c8491}.program-lesson.completed{border-left:4px solid var(--green)}.lesson-number{width:36px;height:36px;border-radius:50%;background:#f2f2ef;display:grid;place-items:center;font-weight:700}.completed .lesson-number{background:#e6f5ef;color:var(--green)}.program-lesson small{display:block;color:var(--accent);font-weight:700;letter-spacing:1px}.program-lesson strong{display:block;margin-top:3px}.program-lesson p{margin:4px 0 0;color:var(--muted);font-size:13px}.lesson-state{font-size:20px}.theory-workspace,.quiz-workspace{max-width:1100px;margin:0 auto;padding:24px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}.completion-panel{position:sticky;top:20px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:26px}.completion-panel h2{font:700 21px Manrope}.completion-panel p{color:var(--muted);line-height:1.5}.completion-panel .primary{width:100%}.quiz-question{border:1px solid var(--line);border-radius:9px;padding:20px;margin-top:22px}.quiz-question legend{font-weight:700;padding:0 7px}.quiz-question legend small{display:block;color:var(--accent);letter-spacing:1px}.quiz-question>p{color:var(--muted);font-size:13px}.quiz-option{display:flex;align-items:center;gap:10px;padding:11px;border-radius:7px;background:#f7f7f4;margin-top:7px}.quiz-result{display:grid;gap:3px;margin-top:20px;padding:16px;border-radius:8px}.quiz-result strong{font:700 28px Manrope}.quiz-result.success{background:#eaf7f1;color:#207557}.quiz-result.failure{background:#fdf0ed;color:#b7442c}.lesson-admin-table .table-row{grid-template-columns:1.4fr .6fr 1.1fr 1.4fr}.inline-check{display:flex;align-items:center;gap:6px}.admin-actions{display:flex;gap:10px;align-items:center}.admin-actions .primary{margin-top:0}.admin-actions .secondary{text-decoration:none}.import-file{margin:0;cursor:pointer}.import-file input{display:none}.quiz-option-editor{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;margin:8px 0}.quiz-authoring-question{margin-top:18px}@media(max-width:800px){.theory-workspace,.quiz-workspace{grid-template-columns:1fr;padding:12px}.completion-panel{position:static}.course-program{padding:30px 16px}.program-lesson{grid-template-columns:38px 1fr auto}.lesson-admin-table .table-row{grid-template-columns:1fr 1fr}}
.grid-toolbar{display:flex;flex:1;width:100%;justify-content:flex-end;padding:10px 12px}