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h3{font-size:1.1rem;color:var(--primary-color);text-transform:uppercase;letter-spacing:1px}.vars-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:15px;margin-bottom:25px}.var-item-card{background:#f8f9fa;border:1px solid #e9ecef;border-radius:10px;padding:12px;display:flex;align-items:center;gap:12px;transition:all .3s ease}.var-item-card:hover{border-color:var(--primary-color);background:#c8102e0d}.var-main-info{display:flex;gap:8px;flex:1}.var-main-info input{background:#fff!important;border:1px solid #dddddd!important;color:#333!important;padding:8px 12px!important;font-size:.9rem!important;border-radius:6px}.var-main-info select{background:#fff!important;border:1px solid #dddddd!important;color:#333!important;padding:8px!important;font-size:.85rem!important;border-radius:6px}.btn-remove-var{background:transparent;border:none;color:var(--text-muted);font-size:1.2rem;cursor:pointer;transition:color .2s}.btn-remove-var:hover{color:#ff4757}.output-var{max-width:400px;border:1px solid #cce5ff;background:#f0f7ff}.section-header-row{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:20px}.header-info h3{color:var(--primary-color);font-size:1.5rem;margin-bottom:4px}.header-info p{color:var(--text-muted);font-size:.9rem}.btn-add-rich{padding:10px 24px;background:linear-gradient(135deg,#c8102e,#800);color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;box-shadow:0 4px 15px #c8102e4d;transition:all .3s cubic-bezier(.4,0,.2,1)}.btn-add-rich.yellow{background:linear-gradient(135deg,#ffc107,#ff9800);box-shadow:0 4px 15px #ffc1074d;color:#000}.btn-add-rich:hover{transform:scale(1.05) translateY(-2px);box-shadow:0 6px 20px #0000004d}.tc-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(450px,1fr));gap:20px}.tc-rich-card{background:#fff;border-radius:12px;padding:20px;position:relative;border-top:4px solid var(--primary-color);box-shadow:0 10px 30px #00000014;transition:transform .3s ease}.tc-rich-card.hidden-tc{border-top-color:#ffc107}.tc-rich-card:hover{transform:translateY(-5px)}.tc-card-header{display:flex;justify-content:space-between;margin-bottom:15px}.tc-title{display:flex;align-items:center;gap:10px;flex:1}.idx-tag{background:#f0f0f0;padding:2px 8px;border-radius:4px;font-size:.8rem;font-weight:700;color:#666}.tc-title input{border:none!important;background:transparent!important;font-weight:600!important;font-size:1.1rem!important;color:#333!important;padding:0!important}.btn-icon-trash{background:#fff5f5;border:none;width:32px;height:32px;border-radius:6px;cursor:pointer;transition:all .2s}.btn-icon-trash:hover{background:#fee;transform:rotate(5deg)}.tc-variables-grid{display:flex;flex-direction:column;gap:12px;background:#fbfbfb;padding:15px;border-radius:8px}.tc-var-row{display:flex;flex-direction:column;gap:6px}.var-label{display:flex;justify-content:space-between;align-items:center}.var-name{font-size:.85rem;font-weight:600;color:#555;text-transform:uppercase}.var-type-select{font-size:.75rem;padding:2px 6px;border-radius:4px;border:1px solid #ddd;background:#fff;color:#c8102e;font-weight:700}.tc-var-row input{width:100%;padding:10px!important;border:1px solid #eee!important;border-radius:6px!important;background:#fff!important;font-family:Fira Code,monospace;font-size:.9rem}.tc-var-row.output-var{margin-top:10px;padding-top:10px;border-top:1px dashed #ddd}.tc-var-row.output-var .var-name{color:#2e7d32}.tc-var-row.output-var input{border-color:#a5d6a7!important;background:#f1f8e9!important;color:#2e7d32!important}.form-actions{display:flex;gap:15px;justify-content:flex-end;padding:20px;background:var(--surface-color);border:var(--glass-border);border-radius:12px;margin-top:20px}.btn-publish{background:var(--primary-color);color:#fff;padding:12px 30px;border-radius:8px;font-weight:700;border:none;cursor:pointer}.btn-publish:hover{background:#a00d24}.btn-draft{background:#fc03;color:var(--warning-color);padding:12px 30px;border-radius:8px;font-weight:700;border:1px solid var(--warning-color);cursor:pointer}.btn-secondary{background:transparent;color:var(--text-color);padding:12px 30px;border-radius:8px;border:1px solid var(--border-color);cursor:pointer}@media(max-width:768px){.tc-cards-grid{grid-template-columns:1fr}}.join-course-page-new{min-height:90vh;display:flex;flex-direction:column;padding:2.5rem;font-family:Inter,system-ui,-apple-system,sans-serif;background:#f8fafc;position:relative;overflow-x:hidden}.join-course-page-new:before{content:"";position:absolute;top:-200px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(200,16,46,.03) 0%,transparent 70%);z-index:0}.join-header-compact{max-width:600px;margin:0 auto 3rem;width:100%;z-index:10}.btn-back-mini{display:flex;align-items:center;gap:8px;background:none;border:none;color:#64748b;font-weight:700;cursor:pointer;font-size:.8125rem;padding:8px 16px;border-radius:100px;transition:all .2s}.btn-back-mini:hover{background:#fff;color:#c8102e;box-shadow:0 4px 12px #0000000d}.join-container-centered{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3rem;flex:1;z-index:10}.join-card-premium{width:100%;max-width:480px;background:#fff;border-radius:36px;padding:3.5rem 3rem 2rem;position:relative;box-shadow:0 30px 60px #0000000d,0 10px 20px #00000005;border:1px solid #f1f5f9}.join-card-glow{position:absolute;top:0;left:0;right:0;height:120px;background:linear-gradient(180deg,rgba(200,16,46,.02) 0%,transparent 100%);border-radius:36px 36px 0 0;z-index:0}.card-top-icon{position:absolute;top:-45px;left:50%;transform:translate(-50%);z-index:20}.icon-ring{width:90px;height:90px;background:#fff;border-radius:32px;display:flex;align-items:center;justify-content:center;box-shadow:0 15px 30px #c8102e1a;border:4px solid #fdf2f2;color:#c8102e}.card-content-join{position:relative;z-index:10;text-align:center}.card-content-join h2{font-size:2rem;font-weight:950;color:#0f172a;letter-spacing:-.03em;margin-bottom:1rem}.card-content-join p{color:#64748b;font-size:.9375rem;line-height:1.6;margin-bottom:2.5rem;font-weight:500}.modern-join-form{display:flex;flex-direction:column;gap:1.5rem;text-align:left}.form-field-group label{display:block;font-size:.75rem;font-weight:850;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.75rem}.input-with-icon-unique{position:relative;display:flex;align-items:center}.input-prefix-icon{position:absolute;left:18px;color:#cbd5e1}.input-with-icon-unique input{width:100%;padding:18px 18px 18px 52px;background:#f8fafc;border:2px solid #f1f5f9;border-radius:18px;font-size:1.0625rem;font-weight:800;color:#1e293b;transition:all .2s}.input-with-icon-unique input:focus{background:#fff;border-color:#c8102e;box-shadow:0 0 0 5px #c8102e0d;outline:none}.input-hint-mini{display:block;font-size:.6875rem;color:#94a3b8;margin-top:.75rem;font-weight:650}.btn-join-primary{width:100%;padding:18px;background:#c8102e;color:#fff;border:none;border-radius:20px;font-weight:900;font-size:1rem;display:flex;align-items:center;justify-content:center;gap:12px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 10px 30px #c8102e33;margin-top:1rem}.btn-join-primary:hover:not(:disabled){background:#a50d26;transform:translateY(-2px);box-shadow:0 15px 40px #c8102e59}.btn-join-primary:active:not(:disabled){transform:translateY(0)}.btn-join-primary:disabled{opacity:.6;cursor:not-allowed;background:#cbd5e1;box-shadow:none}.spin-icon{animation:rotateJoin 1s linear infinite}@keyframes rotateJoin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.feedback-alert{padding:14px 18px;border-radius:14px;display:flex;align-items:center;gap:12px;font-size:.875rem;font-weight:800}.error-unique{background:#fef2f2;color:#ef4444;border:1px solid #fee2e2}.success-unique{background:#f0fdf4;color:#10b981;border:1px solid #dcfce7}.card-footer-help{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid #f1f5f9;display:flex;align-items:center;justify-content:center;gap:10px;color:#94a3b8;font-size:.8125rem;font-weight:700}.join-instructions-mini{display:flex;gap:2.5rem;max-width:700px}.instruction-step-mini{display:flex;align-items:center;gap:12px}.step-num-mini{width:24px;height:24px;background:#e2e8f0;color:#475569;font-size:.75rem;font-weight:950;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.instruction-step-mini p{font-size:.8125rem;font-weight:750;color:#64748b;margin:0}@media(max-width:600px){.join-container-centered{transform:scale(.9)}.join-instructions-mini{flex-direction:column;gap:1rem}.join-card-premium{padding:3.5rem 2rem 2rem}}:root{--rc-primary: #c8102e;--rc-primary-light: #fff1f2;--rc-primary-dark: #8b0c20;--rc-text-main: #2d0a0e;--rc-text-soft: #64748b;--rc-bg: #fffefe;--rc-card-bg: rgba(255, 255, 255, .88)}.browse-courses-page{min-height:100vh;padding:0;margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background:radial-gradient(circle at top right,#fff1f2 0%,transparent 40%),radial-gradient(circle at bottom left,#f1f5f9 0%,transparent 40%);animation:rc-fadeIn .8s cubic-bezier(.16,1,.3,1)}@keyframes rc-fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.browse-hero-banner{background:linear-gradient(135deg,#c8102e,#8b001a);color:#fff;padding:6rem 2rem 10rem;text-align:center;position:relative;overflow:hidden;margin-bottom:-6rem;z-index:1}.browse-hero-banner:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 70% 20%,rgba(255,255,255,.15) 0%,transparent 60%)}.hero-content-inner{position:relative;z-index:2;max-width:800px;margin:0 auto}.browse-hero-banner h1{font-size:3.5rem;font-weight:950;letter-spacing:-.05em;margin-bottom:1rem;line-height:1}.browse-hero-banner p{font-size:1.25rem;font-weight:500;color:#ffdce0;margin-bottom:3rem;opacity:.9}.search-wrapper-floating{position:relative;max-width:680px;margin:0 auto;filter:drop-shadow(0 20px 30px rgba(0,0,0,.15))}.search-wrapper-floating .search-field{width:100%;background:#fff;border:none;padding:1.5rem 2rem 1.5rem 4rem;border-radius:24px;font-size:1.125rem;font-weight:600;color:var(--rc-text-main);transition:all .3s cubic-bezier(.4,0,.2,1)}.search-wrapper-floating .search-field:focus{outline:none;transform:scale(1.02);box-shadow:0 0 0 4px #fff3}.search-icon-float{position:absolute;left:1.5rem;top:50%;transform:translateY(-50%);color:var(--rc-primary)}.browse-content-area{position:relative;z-index:3;max-width:1300px;margin:0 auto;padding:0 2rem 6rem}.browse-grid-premium{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem}.glass-course-card{background:var(--rc-card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.7);border-radius:32px;padding:2rem;display:flex;flex-direction:column;justify-content:space-between;min-height:280px;transition:all .4s cubic-bezier(.16,1,.3,1);box-shadow:0 10px 30px -10px #0000000d}.glass-course-card:hover{transform:translateY(-12px);box-shadow:0 30px 60px -15px #0000001a;border-color:var(--rc-primary-light)}.card-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.tag-premium{background:#f1f5f9;color:#475569;padding:6px 12px;border-radius:100px;font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em}.course-dot-accent{width:12px;height:12px;background:var(--rc-primary);border-radius:50%;box-shadow:0 0 12px #c8102e66}.glass-course-card h3{font-size:1.6rem;font-weight:900;color:var(--rc-text-main);line-height:1.2;margin-bottom:1.5rem;letter-spacing:-.04em}.meta-grid-compact{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.meta-row-premium{display:flex;align-items:center;gap:10px;color:var(--rc-text-soft);font-size:.9375rem;font-weight:600}.meta-row-premium svg{color:var(--rc-text-soft);opacity:.6}.btn-premium-join{width:100%;background:var(--rc-primary);color:#fff;padding:1rem;border:none;border-radius:100px;font-size:1rem;font-weight:800;display:flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1)}.btn-premium-join:hover{background:var(--rc-primary-dark);transform:scale(1.03);box-shadow:0 10px 20px #8b0c204d}.rc-modal-overlay{position:fixed;inset:0;background:#2d0a0e80;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem;animation:rc-fadeIn .4s ease}.rc-modal-container{background:#fff;width:100%;max-width:480px;border-radius:40px;padding:3.5rem 2.5rem 2.5rem;position:relative;box-shadow:0 40px 100px -20px #0003;text-align:center}.rc-close-btn{position:absolute;top:1.5rem;right:1.5rem;border:none;background:#f1f5f9;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.rc-close-btn:hover{background:#fee2e2;color:var(--rc-primary);transform:rotate(90deg)}.rc-modal-icon{width:80px;height:80px;background:var(--rc-primary-light);color:var(--rc-primary);border-radius:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 2rem}.rc-modal-container h2{font-size:2rem;font-weight:1000;color:var(--rc-text-main);letter-spacing:-.05em;margin-bottom:.75rem}.rc-modal-container p{color:var(--rc-text-soft);margin-bottom:2.5rem;line-height:1.5}.rc-input-code{width:100%;padding:1.5rem;background:#f8fafc;border:2px solid #f1f5f9;border-radius:24px;font-size:1.5rem;font-weight:900;text-align:center;color:var(--rc-text-main);letter-spacing:.1em;margin-bottom:1rem;transition:all .2s}.rc-input-code:focus{outline:none;border-color:var(--rc-primary);background:#fff;box-shadow:0 0 0 6px #c8102e1a}.rc-error-msg{display:flex;align-items:center;justify-content:center;gap:8px;color:#ef4444;font-weight:700;font-size:.9rem;margin-bottom:2rem}.rc-modal-footer{display:grid;grid-template-columns:1fr 2fr;gap:1rem}.btn-rc-cancel{padding:1.25rem;background:#f1f5f9;border:none;border-radius:20px;font-weight:700;cursor:pointer}.btn-rc-submit{padding:1.25rem;background:var(--rc-primary);color:#fff;border:none;border-radius:20px;font-weight:850;cursor:pointer;box-shadow:0 10px 20px #c8102e33;transition:all .2s}.btn-rc-submit:hover{transform:translateY(-3px);box-shadow:0 15px 30px #c8102e4d}.skeleton-rc-card{background:#fff;border-radius:32px;height:300px;padding:2rem;display:flex;flex-direction:column;gap:1.5rem}.sk-line{background:#f1f5f9;border-radius:10px;position:relative;overflow:hidden}.sk-line:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.6),transparent);animation:rc-shimmer 1.5s infinite}@keyframes rc-shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.sk-circle{width:12px;height:12px;border-radius:50%}.flex-center-view{display:flex;align-items:center;justify-content:center;min-height:80vh}.animate-spin{animation:rc-spin 1s linear infinite}@keyframes rc-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(max-width:768px){.browse-hero-banner h1{font-size:2.25rem}.browse-hero-banner{padding:4rem 1.5rem 8rem}.browse-grid-premium{grid-template-columns:1fr}}.submissions-page-mini{padding:2rem;max-width:1400px;margin:0 auto;animation:fadeInSubmissions .4s ease-out}@keyframes fadeInSubmissions{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.page-header-mini{margin-bottom:2.5rem;display:flex;justify-content:space-between;align-items:center}.header-info-mini h1{font-size:2rem;font-weight:950;color:#1e293b;margin:0 0 .25rem;letter-spacing:-.04em}.header-info-mini p{font-size:.9375rem;color:#64748b;margin:0}.exams-list{display:flex;flex-direction:column;gap:1rem}.exam-card-wrapper{border-radius:20px;overflow:hidden;border:1px solid #e2e8f0;background:#fff;transition:all .3s cubic-bezier(.4,0,.2,1)}.exam-card-wrapper:hover{border-color:#c8102e40;box-shadow:0 4px 20px -8px #c8102e1f}.exam-card-wrapper.expanded{border-color:#c8102e;box-shadow:0 8px 30px -10px #c8102e26}.exam-card{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;cursor:pointer;transition:background .2s}.exam-card:hover{background:#fafbfc}.exam-card-left{display:flex;align-items:center;gap:1rem}.exam-icon-box{width:44px;height:44px;background:linear-gradient(135deg,#fef2f2,#fee2e2);border-radius:14px;display:flex;align-items:center;justify-content:center;color:#c8102e;flex-shrink:0}.exam-icon-box.professor{background:linear-gradient(135deg,#ede9fe,#ddd6fe);color:#7c3aed}.exam-info{display:flex;flex-direction:column;gap:4px}.exam-title{font-size:1.05rem;font-weight:850;color:#1e293b;margin:0}.exam-meta-row{display:flex;align-items:center;gap:14px}.exam-meta-item{display:flex;align-items:center;gap:5px;font-size:.75rem;font-weight:700;color:#94a3b8}.exam-meta-item.highlight{color:#7c3aed}.exam-card-right{display:flex;align-items:center;gap:1.25rem}.exam-score-summary{display:flex;align-items:center;gap:.75rem}.score-chip{display:flex;align-items:center;gap:6px;background:linear-gradient(135deg,#fef9c3,#fef08a);color:#92400e;padding:5px 12px;border-radius:100px;font-size:.8rem;font-weight:900}.attempt-count{font-size:.75rem;font-weight:700;color:#94a3b8}.expand-chevron{width:32px;height:32px;background:#f1f5f9;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#94a3b8;transition:all .3s}.expand-chevron.open{background:#c8102e;color:#fff;transform:rotate(90deg)}.exam-detail-panel{padding:0 1.5rem 1.5rem;border-top:1px solid #f1f5f9;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.detail-loading{display:flex;align-items:center;justify-content:center;gap:10px;padding:2rem;color:#94a3b8;font-weight:700;font-size:.85rem}.spinner-small{width:20px;height:20px;border:2.5px solid #e2e8f0;border-top-color:#c8102e;border-radius:50%;animation:spin .6s linear infinite}@keyframes 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