@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-primary: #1e1e2e;--bg-secondary: #181825;--bg-tertiary: #1b1b1d;--bg-separator: #313244;--text-primary: #cdd6f4;--text-secondary: #bac2de;--text-muted: #a6adc8;--brand-primary: #cba6f7;--brand-primary-hover: #b4befe;--brand-secondary: #f5c2e7;--danger: #f38ba8;--success: #a6e3a1;--warning: #f9e2af;--border-color: #313244;--font-family: "Inter", sans-serif}body.light-theme{--bg-primary: #eff1f5;--bg-secondary: #e6e9ef;--bg-tertiary: #dce0e8;--bg-separator: #ccd0da;--text-primary: #4c4f69;--text-secondary: #5c5f77;--text-muted: #6c6f85;--brand-primary: #8839ef;--brand-primary-hover: #7287fd;--brand-secondary: #ea76cb;--danger: #d20f39;--success: #40a02b;--warning: #df8e1d;--border-color: #ccd0da}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--brand-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--brand-primary-hover)}.glass-panel{background:var(--bg-secondary);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;border-radius:12px}.text-gradient{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out;border:none;font-size:1rem}.btn-primary{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));color:#4a4141;font-weight:600;box-shadow:0 4px 14px #cba6f763}.btn-primary:hover{transform:translateY(-2px);color:#fff}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-tertiary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-color)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .4s ease-out forwards}.input-field{width:100%;padding:.75rem 1rem;border-radius:8px;background-color:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary);font-family:inherit;transition:all .2s}.input-field:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 2px #cba6f733}.form-input{width:100%;padding:.75rem 1.25rem;border-radius:12px;background-color:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-primary);font-family:inherit;font-size:.95rem;transition:all .2s cubic-bezier(.4,0,.2,1);outline:none}.form-input:focus{border-color:var(--brand-primary);background-color:var(--bg-secondary);box-shadow:0 0 0 4px #cba6f71a}.file-input{display:block;width:100%;color:var(--text-secondary);background-color:var(--bg-secondary);border:2px dashed var(--border-color);border-radius:12px;padding:.5rem;cursor:pointer;transition:all .2s ease}.file-input:hover{border-color:var(--brand-primary);background-color:var(--bg-tertiary)}.file-input:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 4px #cba6f71a}.file-input::file-selector-button{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;margin-right:1rem;border-radius:8px;background:var(--bg-separator);color:var(--text-primary);font-weight:500;border:1px solid var(--border-color);cursor:pointer;transition:all .2s ease-in-out}.file-input::file-selector-button:hover{background:var(--bg-tertiary);border-color:var(--brand-primary);color:var(--brand-primary)}.search-container{position:relative;display:flex;align-items:center;width:100%}.search-icon{position:absolute;right:1rem;color:var(--text-muted);pointer-events:none;transition:color .2s}.search-container:focus-within .search-icon{color:var(--brand-primary)}.markdown-content{color:inherit;font-size:inherit}.markdown-content p{margin-bottom:.75rem}.markdown-content p:last-child{margin-bottom:0}.markdown-content ul,.markdown-content ol{margin-left:1.5rem;margin-bottom:.75rem}.markdown-content li{margin-bottom:.25rem;list-style-position:outside}.markdown-content a{color:var(--brand-primary);text-decoration:underline}.markdown-content strong{color:var(--text-primary)}.markdown-content code{background:var(--bg-tertiary);padding:.1rem .3rem;border-radius:4px;font-family:monospace;font-size:.9em}.markdown-content pre{background:var(--bg-tertiary);padding:1rem;border-radius:8px;overflow-x:auto;margin-bottom:.75rem}.markdown-content pre code{background:transparent;padding:0}.hero-gradient{background:linear-gradient(-45deg,var(--bg-primary),rgba(136,57,239,.15),rgba(234,118,203,.05),var(--bg-primary));background-size:400% 400%;animation:gradientBG 15s ease infinite}.dark-theme .hero-gradient,body:not(.light-theme) .hero-gradient{background:linear-gradient(-45deg,var(--bg-primary),rgba(203,166,247,.15),rgba(245,194,231,.05),var(--bg-primary));background-size:400% 400%}@keyframes gradientBG{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.course-card{transition:all .3s cubic-bezier(.25,.8,.25,1);border:1px solid var(--border-color);background:var(--bg-secondary);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}.course-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px -10px #0000004d,0 0 20px #cba6f726;border-color:var(--brand-primary)}.course-card-img-wrapper{overflow:hidden;height:200px;position:relative}.course-card-image{transition:transform .6s cubic-bezier(.25,.8,.25,1);width:100%;height:100%;background-size:cover;background-position:center}.course-card:hover .course-card-image{transform:scale(1.08)}.stat-box{background:var(--bg-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color);border-radius:16px;padding:1.5rem;transition:all .3s ease;text-align:center}.stat-box:hover{transform:translateY(-5px);border-color:var(--brand-primary);box-shadow:0 10px 30px -10px #cba6f733}.feature-card{background:var(--bg-secondary);border-radius:16px;padding:2rem;transition:all .3s ease;border:1px solid var(--border-color)}.feature-card:hover{transform:translateY(-8px);border-color:var(--brand-secondary);box-shadow:0 10px 30px -10px #f5c2e733}.feature-icon-wrapper{background:linear-gradient(135deg,#cba6f726,#f5c2e71a);color:var(--brand-primary);border-radius:12px;padding:1rem;display:inline-flex;align-items:center;justify-content:center;margin-bottom:1.5rem;transition:all .4s cubic-bezier(.175,.885,.32,1.275)}.feature-card:hover .feature-icon-wrapper{background:var(--brand-primary);color:var(--bg-primary);transform:scale(1.1) rotate(5deg)}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;font-size:.75rem;font-weight:600;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}.badge-primary{background:#cba6f726;color:var(--brand-primary);border:1px solid rgba(203,166,247,.3)}.badge-success{background:#a6e3a126;color:var(--success);border:1px solid rgba(166,227,161,.3)}.badge-blur{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#00000080;color:#fff;border:1px solid rgba(255,255,255,.2)}.footer-link{color:var(--text-secondary);transition:color .2s;text-decoration:none;font-size:.95rem}.footer-link:hover{color:var(--brand-primary)}.layout-container{display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;flex-direction:row;align-items:center;justify-content:space-between;padding:1rem 2rem;margin-bottom:2rem;border-radius:0 0 12px 12px;border-top:none;position:sticky;top:0;z-index:50;flex-wrap:wrap}.navbar-brand-container{display:flex;align-items:center;justify-content:space-between}.navbar-brand{font-size:1.5rem;font-weight:700;text-decoration:none}.navbar-menu{display:flex;align-items:center;justify-content:space-between;flex:1}.navbar-links{display:flex;align-items:center;gap:2rem;margin-left:2rem}.nav-link{color:var(--text-secondary);font-weight:600;text-decoration:none;transition:color .2s}.nav-link:hover{color:var(--brand-primary)}.navbar-actions{display:flex;align-items:center;gap:1rem;margin-left:auto}.navbar-search{flex:1;max-width:400px;margin:0 2rem}.theme-toggle-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-primary);padding:.4rem;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.theme-toggle-btn:hover{background:var(--bg-tertiary)}.theme-toggle-btn svg{width:1.5rem;height:1.5rem}.mobile-actions{display:none;align-items:center;gap:1rem}.mobile-menu-btn{background:transparent;border:none;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center}.mobile-menu-btn svg{width:1.75rem;height:1.75rem}.profile-link{display:flex;align-items:center;gap:.8rem;text-decoration:none;padding:.2rem .5rem;border-radius:8px;transition:background-color .2s}.profile-link:hover{background-color:var(--bg-tertiary)}.profile-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid var(--brand-primary)}.profile-avatar-placeholder{width:36px;height:36px;border-radius:50%;background:var(--brand-primary);color:#000;display:flex;align-items:center;justify-content:center;font-weight:700}.profile-name{color:var(--text-secondary);font-weight:600}.btn-logout{background:transparent;color:var(--text-primary);border:1px solid var(--border-color);padding:.5rem 1rem;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s}.btn-logout:hover{background:var(--bg-tertiary)}.auth-buttons{display:flex;gap:1rem}.main-content{max-width:1200px;margin:0 auto;padding:0 1rem;width:100%}.search-icon{background:none;border:none;cursor:pointer}@media(max-width:768px){.navbar{padding:1rem}.navbar-brand-container{width:100%}.desktop-theme-btn,.desktop-notification-wrapper{display:none}.mobile-actions{display:flex}.navbar-menu{display:none;flex-direction:column;align-items:flex-start;width:100%;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color)}.navbar-menu.show{display:flex}.navbar-links{display:flex;flex-direction:column;align-items:flex-start;gap:1rem;margin-left:0;width:100%;margin-bottom:1.5rem}.nav-link{width:100%;padding:.5rem 0}.navbar-search{max-width:100%;margin:0 0 1.5rem;width:100%}.navbar-actions{flex-direction:column;align-items:flex-start;width:100%;margin-left:0;gap:1rem}.profile-link{width:100%}.auth-buttons{flex-direction:column;width:100%}.auth-buttons .btn{width:100%;justify-content:center}.btn-logout{width:100%;text-align:left;justify-content:center}}@media(min-width:769px)and (max-width:1024px){.navbar{padding:.75rem 1rem}.navbar-links{gap:1rem;margin-left:1rem}.nav-link{font-size:.9rem}.navbar-search{max-width:250px;margin:0 1rem}.navbar-actions{gap:.5rem}.profile-name{display:none}}@media(max-width:900px){.course-detail-grid{display:flex!important;flex-direction:column-reverse!important}.course-action-col{width:100%!important;position:static!important;margin-bottom:2rem}.course-content-col{width:100%!important}}@media(max-width:768px){#root{padding:.5rem}.main-content{padding:0 .5rem}.glass-panel{border-radius:8px}}@media(min-width:769px)and (max-width:1024px){#root{padding:1rem}.main-content{padding:0 .75rem}}.responsive-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.responsive-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}@media(max-width:768px){.responsive-grid-3,.responsive-grid-2{grid-template-columns:1fr}}@media(min-width:769px)and (max-width:1024px){.responsive-grid-3{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.course-card-img-wrapper{height:150px}}@media(max-width:768px){.hero-gradient{padding:3rem 1rem!important;border-radius:12px!important;margin-bottom:2rem!important}}@media(max-width:768px){.course-detail-hero{padding:2rem 1rem!important}.course-detail-hero h1{font-size:1.8rem!important}.course-detail-hero .course-meta{flex-wrap:wrap;gap:.75rem!important}}@media(max-width:480px){.stat-box{padding:1rem}}@media(max-width:600px){.leaderboard-row{flex-direction:column;text-align:center;gap:.75rem!important;padding:1.25rem!important}.leaderboard-row .rank-number{min-width:unset!important}}@media(max-width:640px){.form-grid-3,.form-grid-2{grid-template-columns:1fr!important}}@media(min-width:641px)and (max-width:900px){.form-grid-3{grid-template-columns:repeat(2,1fr)!important}}@media(max-width:600px){.dashboard-course-row{flex-direction:column;align-items:flex-start!important;gap:.75rem!important}.dashboard-course-row .btn{width:100%;justify-content:center}}@media(max-width:600px){.page-header-flex{flex-direction:column;align-items:flex-start!important}}@media(max-width:640px){.filter-bar{flex-direction:column;align-items:stretch!important;gap:.5rem!important;padding:.75rem!important}.filter-bar select,.filter-bar .form-input{width:100%!important;min-width:unset!important}}@media(max-width:640px){.course-tabs{gap:0}.course-tabs button{padding:.75rem!important;font-size:.85rem!important}}@media(max-width:640px){.instructor-section{flex-direction:column;align-items:center;text-align:center}.instructor-section img,.instructor-avatar{width:80px!important;height:80px!important}}@media(max-width:900px){.coding-layout{flex-direction:column!important}.coding-right-panel{width:100%!important;max-height:50vh;border-right:none!important;border-top:1px solid var(--border-color)}.coding-left-panel{border-right:none!important}.coding-header{flex-direction:column;gap:.75rem!important;padding:.75rem 1rem!important}.coding-header-actions{width:100%;justify-content:flex-end}}@media(max-width:640px){.chat-input-area{flex-wrap:wrap}}@media(max-width:640px){.module-editor-row{flex-direction:column}.module-editor-row>div,.module-editor-row>label{width:100%}}@media(max-width:768px){.search-hero-section{padding:2rem 1rem!important;border-radius:16px!important}.search-hero-section h1{font-size:2rem!important}.search-hero-section p{font-size:1rem!important}.search-hero-section form{margin:1.5rem auto .5rem!important}}@media(min-width:769px)and (max-width:1024px){.search-hero-section h1{font-size:2.5rem!important}}@media(max-width:640px){.profile-overview-card{padding:2rem 1rem!important}.profile-overview-card h1{font-size:1.75rem!important}.profile-avatar-large{width:80px!important;height:80px!important}}@media(max-width:480px){.btn{padding:.6rem 1rem;font-size:.9rem}.btn-primary,.btn-secondary{font-size:.9rem}}@media(max-width:768px){.leaderboard-container{max-width:100%!important}}@media(max-width:480px){.user-card{padding:1.25rem 1rem!important}.user-card .profile-avatar-medium{width:60px!important;height:60px!important}}@media(max-width:480px){.notification-dropdown{width:280px!important;right:-1rem!important}}@media(max-width:640px){.edit-profile-container{max-width:100%!important;padding:0!important}.edit-profile-panel{padding:1.5rem!important}}@media(max-width:480px){h1{font-size:1.75rem!important}.text-gradient{font-size:inherit}}html,body{overflow-x:hidden}@media(max-width:640px){.responsive-footer{grid-template-columns:1fr!important;gap:2rem!important;text-align:center}}@media(max-width:640px){.dashboard-filters{flex-direction:column!important;align-items:stretch!important;max-width:100%!important}.dashboard-filters .search-container{max-width:100%!important}.dashboard-filters select{min-width:unset!important;width:100%!important}}.module-item-header{padding:1.25rem 1.5rem;display:flex;justify-content:space-between;align-items:center;position:relative}.module-item-actions{display:flex;align-items:center;gap:.6rem;flex-shrink:0;margin-left:1rem}.module-item-teacher-actions{display:flex;gap:.5rem;margin-left:1rem;flex-shrink:0}@media(max-width:640px){.module-item-header{flex-direction:column;align-items:flex-start;gap:1rem;padding:1rem}.module-item-actions{margin-left:0;width:100%;flex-wrap:wrap;justify-content:flex-start}.module-item-actions .btn{flex:1;min-width:120px;justify-content:center}.module-item-teacher-actions{margin-left:0;margin-top:.5rem;width:100%;justify-content:flex-end}}