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#334155;border-radius:10px;padding:6px 0;min-width:180px;box-shadow:0 20px 60px #0009;z-index:500}.file-tree__context-item{padding:10px 16px;font-size:13px;color:#e2e8f0;cursor:pointer;display:flex;align-items:center;gap:8px}.file-tree__context-item:hover{background:#334155}.file-tree__context-sep{height:1px;background:#334155;margin:4px 0}.file-tree__confirm{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;z-index:600;display:flex;align-items:center;justify-content:center}.file-tree__confirm-card{background:#1e293b;border-radius:16px;padding:28px;max-width:340px;text-align:center;border:1px solid #334155}.file-tree__confirm-title{font-size:1.1rem;font-weight:600;color:#fff;margin-bottom:8px}.file-tree__confirm-body{color:#94a3b8;font-size:14px;margin-bottom:20px}.file-tree__confirm-actions{display:flex;gap:10px;justify-content:center}.btn--danger{background:#ef4444;color:#fff;font-weight:600;padding:8px 20px;border-radius:8px;border:none;cursor:pointer}.btn--danger:hover{background:#dc2626}.btn--cancel{background:transparent;border:1px solid #475569;color:#94a3b8;padding:8px 20px;border-radius:8px;cursor:pointer}.file-tree__action-btn.is-uploading{opacity:.6;cursor:wait}.file-tree__upload-error{background:#2d0a0a;border:1px solid #ef4444;border-radius:6px;padding:6px 10px;font-size:11px;color:#fca5a5;margin-top:8px;display:flex;align-items:center;justify-content:space-between;gap:6px}.file-tree__upload-error button{background:transparent;border:none;color:#f87171;cursor:pointer;font-size:12px;padding:0;flex-shrink:0}.file-size-badge{color:#475569;font-size:10px;margin-left:4px;flex-shrink:0}.file-binary-preview{padding:24px 16px;text-align:center;height:100%;overflow:auto;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.file-binary-preview img{max-width:100%;max-height:60%;border-radius:8px;border:1px solid #334155;object-fit:contain}.file-binary-preview .file-binary-name{color:#94a3b8;font-size:12px;margin-top:8px}.file-binary-preview code{color:#f59e0b;background:#0f172a;padding:1px 6px;border-radius:4px}.html-dialog{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:28px;max-width:440px;width:92%;box-shadow:0 24px 70px #0000008c}.html-dialog__title{color:#f59e0b;font-weight:700;font-size:1.2rem;margin:0 0 4px}.html-dialog__subtitle{color:#94a3b8;font-size:14px;margin:0 0 20px}.html-dialog__name-label{color:#94a3b8;font-size:13px;font-weight:600;display:block;margin-bottom:6px}.html-dialog__name-input{width:100%;background:#0f172a;border:1px solid #334155;color:#fff;padding:10px 14px;border-radius:8px;font-size:14px;margin-bottom:20px}.html-dialog__name-input:focus{outline:none;border-color:#f59e0b}.html-dialog__files-label{color:#94a3b8;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px;display:block}.html-dialog__file-option{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:10px;margin-bottom:8px;border:1px solid #1e293b;cursor:pointer}.html-dialog__file-option:not(.is-locked):hover{border-color:#334155;background:#0f172a}.html-dialog__file-option.is-locked{opacity:.7;cursor:default}.html-dialog__checkbox{width:20px;height:20px;flex-shrink:0;accent-color:#f59e0b;margin-top:2px}.html-dialog__file-name{color:#f59e0b;font-family:ui-monospace,Menlo,monospace;font-size:14px;font-weight:600}.html-dialog__file-desc{color:#64748b;font-size:12px;margin-top:2px}.html-dialog__actions{display:flex;gap:10px;margin-top:24px;justify-content:flex-end}.welcome__buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:460px}.new-project-dialog{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:28px;max-width:400px;width:92%;box-shadow:0 24px 70px #0000008c}.new-project-dialog__title{color:#f59e0b;font-weight:700;font-size:1.3rem;margin:0 0 4px}.new-project-dialog__subtitle{color:#94a3b8;font-size:14px;margin:0 0 20px}.new-project-dialog__label{color:#94a3b8;font-size:13px;font-weight:600;display:block;margin-bottom:8px}.new-project-dialog__input{width:100%;background:#0f172a;border:1px solid #334155;color:#fff;padding:12px 16px;border-radius:10px;font-size:15px;margin-bottom:8px}.new-project-dialog__input:focus{outline:none;border-color:#f59e0b}.new-project-dialog__helper{color:#475569;font-size:12px;font-style:italic}.new-project-dialog__actions{display:flex;gap:10px;margin-top:24px;justify-content:flex-end}.publish-modal{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:28px;max-width:460px;width:92%;box-shadow:0 24px 70px #0000008c}.publish-modal__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.publish-modal__title{color:#f59e0b;font-weight:700;font-size:1.2rem;margin:0}.publish-modal__close{background:transparent;border:none;color:#64748b;font-size:1.2rem;cursor:pointer}.publish-modal__close:hover{color:#fff}.publish-section-label{color:#94a3b8;font-size:13px;font-weight:600;margin-bottom:8px}.publish-url-row{display:flex;align-items:center;background:#0f172a;border:1px solid #334155;border-radius:10px;padding:12px 16px;font-family:ui-monospace,Menlo,monospace;margin-bottom:8px}.publish-url-prefix{color:#64748b;font-size:14px;white-space:nowrap}.publish-url-input{flex:1;background:transparent;border:none;outline:none;color:#f59e0b;font-size:14px;font-family:ui-monospace,Menlo,monospace;min-width:60px}.publish-availability{font-size:13px;margin-bottom:16px;min-height:20px}.publish-availability--ok{color:#4ade80}.publish-availability--bad{color:#f87171}.publish-availability--warn{color:#fbbf24}.publish-availability--checking{color:#94a3b8}.publish-success-banner{background:#052e16;border:1px solid #166534;border-radius:10px;padding:16px;margin-bottom:16px;text-align:center}.publish-success-check{font-size:2rem;display:inline-block;animation:publish-pop .4s ease}@keyframes publish-pop{0%{transform:scale(0);opacity:0}70%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}.publish-success-url{color:#4ade80;font-family:ui-monospace,Menlo,monospace;word-break:break-all;font-size:14px;margin:8px 0}.publish-success-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;justify-content:center}.publish-existing-banner{background:#0c1a2e;border:1px solid #1e40af;border-radius:10px;padding:14px;margin-bottom:16px}.publish-tip{color:#64748b;font-size:13px;margin-bottom:16px;line-height:1.5}.btn--publish{background:#f59e0b;color:#0f172a;font-weight:800;padding:14px 24px;border-radius:12px;border:none;cursor:pointer;font-size:1rem;width:100%;transition:.15s}.btn--publish:hover:not(:disabled){background:#fbbf24;transform:scale(1.02)}.btn--publish:disabled{opacity:.5;cursor:not-allowed}.btn--copy{background:#1e293b;border:1px solid #334155;color:#e2e8f0;padding:8px 16px;border-radius:8px;cursor:pointer;font-size:13px}.btn--copy:hover{background:#334155}.btn--unpublish{display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid #f87171;color:#f87171;padding:8px 20px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;margin-top:12px;transition:.15s;text-decoration:none}.btn--unpublish:hover{background:#f871711a;border-color:#ef4444;color:#ef4444}.friendly-error{display:flex;gap:14px;align-items:flex-start;border-radius:14px;padding:18px 20px;margin-bottom:14px;animation:errorSlideIn .3s ease-out}@keyframes errorSlideIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.friendly-error--red{background:linear-gradient(135deg,#2d0a0a,#1a0505);border:1.5px solid #ef4444;box-shadow:0 4px 20px #ef444426}.friendly-error--orange{background:linear-gradient(135deg,#2d1a00,#1a0f00);border:1.5px solid #f97316;box-shadow:0 4px 20px #f9731626}.friendly-error--yellow{background:linear-gradient(135deg,#2d2500,#1a1500);border:1.5px solid #fbbf24;box-shadow:0 4px 20px #fbbf2426}.friendly-error__icon{font-size:2rem;flex-shrink:0;margin-top:2px}.friendly-error__body{flex:1}.friendly-error__title{font-size:16px;font-weight:800;color:#fff;margin-bottom:8px;line-height:1.3}.friendly-error__message{font-size:14px;color:#cbd5e1;line-height:1.6;margin-bottom:10px}.friendly-error__tip{font-size:13px;color:#94a3b8;background:#ffffff0d;border-radius:8px;padding:8px 12px;line-height:1.5}.friendly-error__tip-label{color:#fbbf24;font-weight:700}.error-details{margin-top:10px}.error-details summary{color:#475569;font-size:12px;cursor:pointer;-webkit-user-select:none;user-select:none;padding:4px 0;list-style:none}.error-details summary:hover{color:#64748b}.error-details summary:before{content:"🔍 "}.error-details[open] summary:before{content:"🔍 "}.error-details pre{margin-top:8px;font-size:11px;color:#64748b;background:#0a0f1a;padding:10px 12px;border-radius:8px;overflow-x:auto;white-space:pre-wrap;word-break:break-word}.output-idle{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:120px;gap:8px;opacity:.5}.output-idle__icon{font-size:2rem;color:var(--brand-blue)}.output-idle__text{color:var(--brand-blue);font-size:14px;font-weight:700}.output-idle__hint{color:#64748b;font-size:12px}.celebration{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:9999;overflow:hidden}.celebration__particle{position:absolute;top:-20px;border-radius:3px;animation-name:confettiFall;animation-timing-function:linear;animation-fill-mode:forwards}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}.celebration__message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3rem;font-weight:900;color:#fff;text-shadow:0 4px 20px rgba(0,0,0,.5);animation:popIn .3s ease-out forwards}@keyframes popIn{0%{transform:translate(-50%,-50%) scale(0)}70%{transform:translate(-50%,-50%) scale(1.2)}to{transform:translate(-50%,-50%) scale(1)}}.btn--restore{color:#94a3b8;font-size:12px;padding:6px 12px}.restore-dialog{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:28px;max-width:360px;width:92%;text-align:center;box-shadow:0 24px 70px #0000008c}.restore-dialog__title{color:#fff;font-weight:700;font-size:1.1rem;margin-bottom:10px}.restore-dialog__body{color:#94a3b8;font-size:14px;line-height:1.5;margin-bottom:20px}.restore-dialog__actions{display:flex;gap:10px;justify-content:center}.portfolio{min-height:100vh;background:#0f172a;color:#fff;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.portfolio-nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid #1e293b;max-width:1200px;margin:0 auto;width:100%}.portfolio-nav__brand{color:#f59e0b;font-weight:800;font-size:1.1rem;text-decoration:none}.btn--portfolio-cta{background:#f59e0b;color:#0f172a;font-weight:700;padding:8px 18px;border-radius:8px;text-decoration:none;font-size:14px}.btn--portfolio-cta:hover{background:#fbbf24}.portfolio-hero{text-align:center;padding:48px 24px 32px;max-width:600px;margin:0 auto}.portfolio-avatar{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:800;color:#0f172a;background:#f59e0b;margin:0 auto 16px;overflow:hidden}.portfolio-avatar img{width:100%;height:100%;object-fit:cover}.portfolio-name{font-size:2rem;font-weight:900;color:#fff;margin-bottom:4px}.portfolio-username{color:#64748b;font-size:1rem;margin-bottom:16px}.portfolio-stats{display:flex;align-items:center;justify-content:center;gap:16px;color:#94a3b8;font-size:14px}.portfolio-content{max-width:1200px;margin:0 auto;padding:0 24px 60px}.portfolio-section-header{font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:20px;margin-top:8px}.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.project-card{background:#1e293b;border:1px solid #334155;border-radius:16px;overflow:hidden;transition:.2s;cursor:pointer}.project-card:hover{transform:translateY(-4px);border-color:#475569;box-shadow:0 12px 40px #0006}.project-card__preview{height:140px;overflow:hidden;position:relative;border-radius:16px 16px 0 0;background:#0f172a}.project-preview--html{width:100%;height:100%}.project-preview__iframe-wrapper{width:100%;height:100%;overflow:hidden;position:relative;background:#fff}.project-preview__iframe{width:840px;height:420px;transform:scale(.333);transform-origin:top left;border:none;pointer-events:none;display:block}.project-preview--code{width:100%;height:100%;display:flex;flex-direction:column;padding:12px;box-sizing:border-box;position:relative;overflow:hidden}.project-preview__icon{font-size:1.2rem;margin-bottom:6px;opacity:.6}.project-preview__code{font-family:Fira Code,Cascadia Code,Courier New,monospace;font-size:9px;color:#94a3b8;white-space:pre;overflow:hidden;margin:0;line-height:1.5;-webkit-mask-image:linear-gradient(to bottom,black 60%,transparent 100%);mask-image:linear-gradient(to bottom,black 60%,transparent 100%)}.project-preview--icon{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.project-preview__icon-large{font-size:3rem;opacity:.4}.project-card__body{padding:16px}.project-card__title{font-weight:700;font-size:15px;color:#fff;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-card__date{color:#64748b;font-size:12px;margin-bottom:10px}.project-card__stats{display:flex;align-items:center;gap:12px;color:#64748b;font-size:12px;margin-bottom:12px}.btn--view-project{display:block;width:100%;background:#f59e0b;color:#0f172a;font-weight:700;padding:9px;border-radius:8px;text-align:center;text-decoration:none;font-size:14px;border:none;cursor:pointer;transition:.15s}.btn--view-project:hover{background:#fbbf24}.portfolio-empty{text-align:center;padding:60px 24px;color:#64748b}.portfolio-empty__icon{font-size:3rem;margin-bottom:12px}.portfolio-empty__title{font-size:1.1rem;color:#94a3b8;margin-bottom:6px}.portfolio-empty__sub{font-size:13px}.portfolio-error{text-align:center;padding:80px 24px}.portfolio-error__icon{font-size:4rem;margin-bottom:16px}.portfolio-error__title{font-size:1.5rem;font-weight:700;color:#fff;margin-bottom:8px}.portfolio-error__sub{color:#64748b;margin-bottom:24px}.portfolio-footer{text-align:center;padding:40px 24px;border-top:1px solid #1e293b;margin-top:40px}.portfolio-footer__text{color:#94a3b8;font-size:15px;margin-bottom:16px;font-weight:500}.portfolio-footer__copy{color:#475569;font-size:13px;margin-top:12px}.portfolio-skeleton{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.portfolio-skeleton-card{height:220px;border-radius:16px;background:linear-gradient(90deg,#1e293b 25%,#334155,#1e293b 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.publish-portfolio-section{margin-top:16px;padding-top:16px;border-top:1px solid #1e293b}.publish-portfolio-hint{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px}.publish-portfolio-hint>span{color:#94a3b8;white-space:nowrap}.publish-portfolio-link{color:#f59e0b;text-decoration:none;font-family:ui-monospace,Menlo,monospace;font-size:12px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.publish-portfolio-link:hover{text-decoration:underline}.change-slug-inline{margin-top:12px;padding:14px;background:#0f172a;border:1px solid #334155;border-radius:10px}.change-slug-warning{color:#fbbf24;font-size:12px;margin-bottom:10px;display:flex;align-items:center;gap:6px}.change-slug-actions{display:flex;gap:8px;margin-top:10px;justify-content:flex-end}.portfolio-slug-modal{background:#1e293b;border:1px solid #334155;border-radius:16px;padding:28px;max-width:460px;width:92%;box-shadow:0 24px 70px #0000008c}.portfolio-slug-modal__title{color:#f59e0b;font-weight:800;font-size:1.2rem;margin:0 0 6px}.portfolio-slug-modal__subtitle{color:#94a3b8;font-size:14px;line-height:1.6;margin:0 0 20px}.portfolio-slug-modal__examples{color:#475569;font-size:12px;font-style:italic;margin-top:8px}.portfolio-slug-modal__actions{display:flex;gap:10px;margin-top:20px;align-items:center;justify-content:flex-end}.portfolio-avatar-wrapper{position:relative;width:80px;margin:0 auto 16px}.portfolio-avatar--dicebear{width:80px;height:80px;border-radius:50%;border:3px solid #f59e0b;background:#1e293b}.portfolio-avatar-edit-btn{position:absolute;bottom:-4px;right:-4px;width:28px;height:28px;border-radius:50%;background:#f59e0b;border:2px solid #0f172a;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:.15s}.portfolio-avatar-edit-btn:hover{background:#fbbf24;transform:scale(1.1)}.portfolio-name-input{font-size:1.6rem;font-weight:900;color:#fff;background:transparent;border:none;border-bottom:2px solid #f59e0b;text-align:center;outline:none;width:100%;max-width:400px;padding:4px 8px;margin-bottom:8px}.portfolio-edit-btn{background:transparent;border:1px solid #334155;color:#64748b;padding:5px 14px;border-radius:20px;cursor:pointer;font-size:13px;margin-top:8px;transition:.15s;display:inline-block}.portfolio-edit-btn:hover{border-color:#f59e0b;color:#f59e0b}.portfolio-edit-actions{display:flex;gap:10px;justify-content:center;margin-top:12px}.avatar-picker{margin:16px auto;max-width:420px;background:#1e293b;border:1px solid #334155;border-radius:14px;padding:16px}.avatar-picker__label{color:#94a3b8;font-size:13px;margin-bottom:12px;text-align:center}.avatar-picker__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.avatar-picker__option{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 8px;border-radius:10px;border:2px solid transparent;background:#0f172a;cursor:pointer;transition:.15s;font-size:11px;color:#64748b}.avatar-picker__option:hover{border-color:#334155;color:#94a3b8}.avatar-picker__option.is-selected{border-color:#f59e0b;background:#1a1200;color:#f59e0b}.avatar-picker__option img{border-radius:50%;display:block}.sidebar__category-header--python{color:#3b82f6}.sidebar__category-header--turtle{color:#22c55e}.sidebar__category-header--html{color:#f59e0b}.sidebar__category-header--javascript{color:#eab308}.sidebar__category-header--java{color:#ef4444}.sidebar__category-header--cpp{color:#7c3aed}.content{background:var(--bg-app)}[data-theme=light] .output-pane{background:#fff}[data-theme=light] .output{background:#fff;color:#1e293b;border-color:var(--border)}[data-theme=light] .output--muted{color:var(--text-secondary)}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:40px 24px;text-align:center;background:var(--bg-app)}.welcome-logo{height:72px;width:auto;margin-bottom:20px;background:#fff;border-radius:16px;padding:10px 24px;box-shadow:0 4px 24px #00000040}.welcome-title{font-size:1.8rem;font-weight:900;color:var(--text-primary);margin-bottom:6px}.welcome-subtitle{color:var(--text-secondary);font-size:1rem;margin-bottom:32px}.welcome-actions-label{color:var(--text-muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.welcome-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:560px;margin:0 auto}.welcome-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 10px;border-radius:16px;border:2px solid transparent;cursor:pointer;transition:all .2s;font-weight:700}.welcome-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px #0003}.welcome-btn__icon{font-size:1.8rem}.welcome-btn__label{font-size:12px}.welcome-btn--python{background:#1e3a8a22;border-color:#3b82f6;color:#60a5fa}.welcome-btn--html{background:#92400e22;border-color:#f59e0b;color:#fbbf24}.welcome-btn--javascript{background:#713f1222;border-color:#eab308;color:#fde047}.welcome-btn--java{background:#7f1d1d22;border-color:#ef4444;color:#fca5a5}.welcome-btn--cpp{background:#4c1d9522;border-color:#7c3aed;color:#c4b5fd}.welcome-btn--c{background:#0c4a6e22;border-color:#0ea5e9;color:#7dd3fc}.welcome-btn--skulpt{background:#14532d22;border-color:#22c55e;color:#86efac}.welcome-or{color:var(--text-muted);font-size:13px;margin-top:24px}[data-theme=light] .welcome-btn--python{background:#eff6ff;color:#2563eb}[data-theme=light] .welcome-btn--html{background:#fffbeb;color:#d97706}[data-theme=light] .welcome-btn--javascript{background:#fefce8;color:#ca8a04}[data-theme=light] .welcome-btn--java{background:#fef2f2;color:#dc2626}[data-theme=light] .welcome-btn--cpp{background:#f5f3ff;color:#7c3aed}[data-theme=light] .welcome-btn--c{background:#f0f9ff;color:#0284c7}[data-theme=light] .welcome-btn--skulpt{background:#f0fdf4;color:#16a34a}.td-header{position:sticky;top:0;z-index:100;background:#0f172a;border-bottom:1px solid #1e293b;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.td-header__left{display:flex;align-items:center;gap:14px}.td-logo{height:32px;width:auto;filter:brightness(0) invert(1)}.td-title{font-size:1.1rem;font-weight:800;color:#f59e0b}.td-subtitle{font-size:13px;color:#64748b;margin-top:2px}.td-header__right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.td-refresh-info{color:#64748b;font-size:12px}.btn--td-refresh{background:#1e293b;border:1px solid #334155;color:#94a3b8;padding:6px 14px;border-radius:8px;cursor:pointer;font-size:13px;transition:.15s;font-family:inherit}.btn--td-refresh:hover{background:#334155;color:#fff}.btn--td-back{background:transparent;border:1px solid #334155;color:#94a3b8;padding:6px 14px;border-radius:8px;cursor:pointer;font-size:13px;transition:.15s;font-family:inherit}.btn--td-back:hover{border-color:#f59e0b;color:#f59e0b}.teacher-dashboard{min-height:100vh;background:#0f172a;color:#fff}.td-content{max-width:1400px;margin:0 auto;padding:24px}.td-section{margin-bottom:40px}.td-section-title{font-size:1rem;font-weight:700;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:8px}.td-classes-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}.td-class-card{flex-shrink:0;width:175px;background:#1e293b;border:1px solid #334155;border-radius:14px;padding:14px}.td-class-card--live{border-color:#22c55e;background:#052e16}.td-class-time{font-size:1.1rem;font-weight:800;color:#f59e0b;margin-bottom:4px}.td-class-name{color:#fff;font-size:14px;font-weight:600;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.td-class-duration{color:#64748b;font-size:12px;margin-bottom:8px}.td-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;padding:3px 8px;border-radius:20px;margin-top:6px}.td-badge--live{background:#052e16;color:#4ade80;border:1px solid #22c55e}.td-badge--upcoming{background:#0c1a2e;color:#60a5fa;border:1px solid #3b82f6}.td-badge--done{background:#052e16;color:#86efac;border:1px solid #166534}.td-badge--noshow{background:#2d0a0a;color:#fca5a5;border:1px solid #ef4444}.td-badge--trial{background:#1a0a2e;color:#c4b5fd;border:1px solid #7c3aed;margin-right:4px}.td-filter-row{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}.td-search{flex:1;min-width:200px;background:#1e293b;border:1px solid #334155;color:#fff;padding:8px 14px;border-radius:8px;font-size:14px;outline:none;font-family:inherit}.td-search:focus{border-color:#f59e0b}.td-filter-select{background:#1e293b;border:1px solid #334155;color:#fff;padding:8px 14px;border-radius:8px;font-size:14px;outline:none;cursor:pointer;font-family:inherit}.td-students-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.td-student-card{background:#1e293b;border:1px solid #334155;border-radius:14px;padding:16px;position:relative;transition:.15s;text-align:center}.td-student-card:hover{transform:translateY(-2px);border-color:#475569}.td-student-card--active{border-color:#22c55e44}.td-student-card--idle{border-color:#f59e0b44}.td-dot{position:absolute;top:12px;right:12px;width:10px;height:10px;border-radius:50%}.td-dot--active{background:#22c55e;animation:pulse 2s infinite}.td-dot--idle{background:#f59e0b}.td-dot--offline{background:#475569}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}.td-avatar{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:800;color:#fff;margin:0 auto 10px}.td-avatar--active{background:#14532d;border:2px solid #22c55e}.td-avatar--idle{background:#451a03;border:2px solid #f59e0b}.td-avatar--offline{background:#1e293b;border:2px solid #334155}.td-student-name{font-weight:700;font-size:14px;color:#fff;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.td-student-username{color:#64748b;font-size:12px;margin-bottom:8px}.td-student-activity{font-size:11px;color:#64748b;margin-bottom:6px;min-height:16px}.td-run-status{font-size:11px;margin-bottom:6px}.td-run-status--ok{color:#4ade80}.td-run-status--err{color:#f87171}.td-student-project{font-size:11px;color:#94a3b8;margin-bottom:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.btn--view-code{width:100%;background:#f59e0b;color:#0f172a;font-weight:700;border:none;border-radius:8px;padding:8px;font-size:13px;cursor:pointer;font-family:inherit;transition:.15s}.btn--view-code:hover{background:#fbbf24}.td-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;z-index:500;display:flex;align-items:center;justify-content:center;padding:20px}.td-modal{background:#0f172a;border:1px solid #334155;border-radius:16px;width:100%;max-width:860px;max-height:85vh;display:flex;flex-direction:column;overflow:hidden}.td-modal__header{padding:16px 20px;border-bottom:1px solid #1e293b;display:flex;align-items:flex-start;justify-content:space-between}.td-modal__title{font-size:1.05rem;font-weight:700;color:#fff}.td-modal__meta{color:#64748b;font-size:12px;margin-top:4px}.td-modal__close{background:transparent;border:none;color:#64748b;cursor:pointer;font-size:1.2rem;padding:2px 6px}.td-modal__close:hover{color:#fff}.td-modal__body{flex:1;overflow-y:auto;padding:16px 20px}.td-modal__footer{padding:10px 20px;border-top:1px solid #1e293b;color:#475569;font-size:12px;text-align:center}.td-code-view{display:flex;flex-direction:column;gap:12px}.td-file-tabs{display:flex;gap:6px;flex-wrap:wrap}.td-file-tab{background:#1e293b;border:1px solid #334155;color:#94a3b8;padding:4px 10px;border-radius:6px;font-size:12px;cursor:pointer;font-family:inherit}.td-file-tab.is-active{background:#334155;color:#fff;border-color:#475569}.td-code-pre{background:#020617;border:1px solid #1e293b;border-radius:10px;padding:16px;font-size:12px;color:#94a3b8;overflow-x:auto;white-space:pre;font-family:Fira Code,Cascadia Code,monospace;max-height:50vh;overflow-y:auto}.td-skeleton-card{height:200px;border-radius:14px;background:linear-gradient(90deg,#1e293b 25%,#334155,#1e293b 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.td-empty{text-align:center;padding:40px 20px;color:#64748b}.td-empty__icon{font-size:2.5rem;margin-bottom:10px}.td-empty__text{font-size:1rem;color:#94a3b8;margin-bottom:6px}.td-empty__sub{font-size:13px}.td-empty-classes{color:#64748b;font-size:14px;padding:16px 0}.td-access-denied{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#0f172a;color:#fff;text-align:center;padding:40px}.td-access-denied__icon{font-size:4rem;margin-bottom:16px}.td-access-denied__title{font-size:1.5rem;font-weight:700;margin-bottom:8px}.td-access-denied__sub{color:#64748b;margin-bottom:24px}.td-checking{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#0f172a}.td-checking__text{color:#64748b;font-size:14px}.td-loading{text-align:center;color:#64748b;padding:40px;font-size:14px}.btn--amber-pill{background:#f59e0b;color:#0f172a;font-weight:700;padding:10px 24px;border-radius:20px;text-decoration:none;font-size:14px;display:inline-block;transition:.15s}.btn--amber-pill:hover{background:#fbbf24}.td-project-selector{display:flex;flex-direction:column;gap:4px;margin-bottom:16px;max-height:200px;overflow-y:auto;border:1px solid #1e293b;border-radius:10px;padding:6px;background:#020617}.td-project-btn{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:8px;border:1px solid transparent;background:transparent;color:#94a3b8;cursor:pointer;text-align:left;transition:.15s;font-size:13px;width:100%;font-family:inherit}.td-project-btn:hover{background:#1e293b;color:#fff}.td-project-btn.is-active{background:#1e293b;border-color:#f59e0b;color:#fff}.td-project-btn__name{flex:1;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.td-project-btn__time{color:#475569;font-size:11px;flex-shrink:0}.td-modal__count{font-size:12px;font-weight:400;color:#64748b;margin-left:8px}