:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#1a1a1a;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#0277bd;text-decoration:inherit}a:hover{color:#01579b}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#fff;cursor:pointer;transition:border-color .25s}button:hover{border-color:#0277bd}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}*{margin:0;padding:0;box-sizing:border-box}.app{min-height:100vh;background:linear-gradient(135deg,#f8f9fa,#fff);color:#1a1a1a;overflow-x:hidden;width:100%}.animate-on-scroll{opacity:0;transform:translateY(30px);transition:opacity .6s ease-out,transform .6s ease-out}.animate-on-scroll.animate-in{opacity:1;transform:translateY(0)}.feature-card.animate-on-scroll,.platform-card.animate-on-scroll,.why-card.animate-on-scroll,.showcase-card.animate-on-scroll{transition-delay:calc(var(--index, 0) * .1s)}.navbar{position:fixed;top:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,0,0,.08);box-shadow:0 2px 10px #0000000d;z-index:1000;padding:1rem 0}.nav-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;display:flex;align-items:center;gap:.2rem;text-decoration:none;cursor:pointer}.logo-flutter{color:#0277bd}.logo-lk{color:#0288d1}.nav-menu{display:flex;list-style:none;gap:2rem}.nav-menu a{color:#4a4a4a;text-decoration:none;transition:color .3s;font-weight:500}.nav-menu a:hover{color:#0277bd}.auth-buttons{display:flex;gap:1rem;align-items:center}.signin-button{background:transparent;color:#0277bd;border:1.5px solid #0277bd;padding:.65rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s}.signin-button:hover{background:#e3f2fd;border-color:#01579b}.signup-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:.65rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.signup-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0277bd4d}.user-profile{display:flex;align-items:center;gap:.75rem;padding:.5rem 1rem;background:#e3f2fd;border-radius:8px;cursor:pointer;transition:all .3s;position:relative}.user-profile:hover{background:#bbdefb}.user-avatar{width:38px;height:38px;border-radius:50%;object-fit:cover;border:2px solid #0277bd}.user-name{color:#01579b;font-weight:600;font-size:.95rem}.dropdown-arrow{color:#01579b;font-size:.7rem;margin-left:.25rem;transition:transform .3s}.profile-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;min-width:200px;overflow:hidden;z-index:1000;animation:dropdownSlide .2s ease-out}@keyframes dropdownSlide{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-item{width:100%;padding:.875rem 1.25rem;background:none;border:none;text-align:left;cursor:pointer;font-size:.95rem;color:#1a1a1a;display:flex;align-items:center;gap:.75rem;transition:background .2s}.dropdown-item:hover{background:#f5f5f5}.dropdown-item span{font-size:1.1rem}.signout-button{background:transparent;color:#d32f2f;border:1.5px solid #d32f2f;padding:.65rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s}.signout-button:hover{background:#ffebee;border-color:#c62828}.mobile-auth-buttons{display:none}.hamburger{display:none;flex-direction:column;background:transparent;border:none;cursor:pointer;padding:.5rem;gap:.35rem}.hamburger span{display:block;width:25px;height:3px;background:#1a1a1a;border-radius:3px;transition:all .3s}.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(8px,8px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}.hero{margin-top:80px;padding:6rem 2rem;min-height:calc(100vh - 80px);display:flex;align-items:center;background:linear-gradient(135deg,#e3f2fd,#fff)}.hero-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.hero-content{text-align:left}.hero-badge{display:inline-block;background:linear-gradient(135deg,#e3f2fd,#bbdefb);color:#01579b;padding:.5rem 1rem;border-radius:20px;font-size:.875rem;font-weight:600;margin-bottom:1.5rem;border:1px solid rgba(2,119,189,.2)}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem;color:#000}.gradient-text{background:linear-gradient(135deg,#0277bd,#01579b);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-description{font-size:1.125rem;color:#5a5a5a;line-height:1.6;margin-bottom:2rem}.hero-buttons{display:flex;gap:1rem;margin-bottom:3rem}.primary-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:1rem 2rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:transform .2s,box-shadow .2s}.primary-button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0277bd4d}.secondary-button{background:#fff;color:#0277bd;border:2px solid #0277bd;padding:1rem 2rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s}.secondary-button:hover{background:#e3f2fd;border-color:#01579b}.hero-stats{display:flex;gap:3rem}.stat{display:flex;flex-direction:column}.stat-number{font-size:2rem;font-weight:700;color:#0277bd}.stat-label{font-size:.875rem;color:#6a6a6a}.hero-visual{position:relative;height:500px;display:flex;align-items:center;justify-content:center}.hero-visual:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:400px;height:400px;border:2px dashed rgba(2,119,189,.15);border-radius:50%;animation:rotateOrbitPath 30s linear infinite}@keyframes rotateOrbitPath{0%{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}.flutter-logo-container{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:180px;height:180px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:50%;box-shadow:0 15px 40px #0277bd33;z-index:1;animation:logoFloat 4s ease-in-out infinite}.flutter-logo-container:before{content:"";position:absolute;inset:-10px;border-radius:50%;background:linear-gradient(135deg,#0277bd4d,#01579b1a);opacity:0;animation:logoPulse 4s ease-in-out infinite;z-index:-1}@keyframes logoPulse{0%,to{opacity:0;transform:scale(.8)}50%{opacity:1;transform:scale(1.1)}}.flutter-logo{width:120px;height:120px;object-fit:contain}@keyframes logoFloat{0%,to{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.05)}}.floating-card{position:absolute;top:50%;left:50%;background:#fff;box-shadow:0 10px 30px #00000026;border:1px solid rgba(2,119,189,.1);border-radius:16px;padding:1.5rem 2rem;display:flex;flex-direction:column;align-items:center;gap:.5rem;z-index:2;transition:box-shadow .3s}.floating-card:hover{box-shadow:0 15px 40px #0277bd4d;border-color:#0277bd4d}.card-1{animation:orbit 12s linear infinite}.card-2{animation:orbit 12s linear infinite;animation-delay:-4s}.card-3{animation:orbit 12s linear infinite;animation-delay:-8s}.card-icon{font-size:2.5rem}.card-text{font-weight:600;color:#1a1a1a;font-size:.95rem;white-space:nowrap}@keyframes orbit{0%{transform:translate(-50%,-50%) rotate(0) translate(200px) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg) translate(200px) rotate(-360deg)}}.features{padding:6rem 2rem;background:#fff}.features-container{max-width:1200px;margin:0 auto}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:1rem;color:#1a1a1a}.section-subtitle{text-align:center;color:#5a5a5a;margin-bottom:4rem;font-size:1.125rem}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.feature-card{background:linear-gradient(135deg,#f5f5f5,#fafafa);border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:2rem;transition:transform .3s,box-shadow .3s,border-color .3s}.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0000001f;border-color:#0277bd4d}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem;margin-bottom:.75rem;color:#0277bd}.feature-card p{color:#5a5a5a;line-height:1.6}.cta-section{padding:6rem 2rem;text-align:center;background:linear-gradient(135deg,#e3f2fd,#fff)}.cta-container{max-width:800px;margin:0 auto;background:#fff;border:1px solid rgba(0,0,0,.08);box-shadow:0 10px 40px #00000014;border-radius:24px;padding:4rem 2rem}.cta-container h2{font-size:2.5rem;margin-bottom:1rem;color:#1a1a1a}.cta-container p{font-size:1.125rem;color:#5a5a5a;margin-bottom:2rem}.cta-large-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:1.25rem 3rem;border-radius:12px;font-weight:600;font-size:1.125rem;cursor:pointer;transition:transform .2s,box-shadow .2s}.cta-large-button:hover{transform:translateY(-2px);box-shadow:0 10px 30px #0277bd4d}.platforms-section{padding:6rem 2rem;background:linear-gradient(135deg,#e3f2fd,#fff)}.platforms-container{max-width:1200px;margin:0 auto;overflow-x:hidden;width:100%}.platforms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;justify-items:center;max-width:1100px;margin:0 auto}.platform-card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:2.5rem 2rem;text-align:center;transition:transform .3s,box-shadow .3s;width:100%;max-width:280px}.platform-card:hover{transform:translateY(-8px);box-shadow:0 15px 40px #0277bd26}.platform-icon{font-size:4rem;margin-bottom:1.5rem}.platform-card h3{font-size:1.5rem;margin-bottom:.5rem;color:#1a1a1a}.platform-card p{color:#0277bd;font-weight:600;margin-bottom:.75rem}.platform-desc{color:#6a6a6a;font-size:.95rem;line-height:1.6;display:block}.why-flutter{padding:6rem 2rem;background:#fff}.why-flutter-container{max-width:1200px;margin:0 auto}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}.why-card{text-align:center;padding:2rem;background:linear-gradient(135deg,#f5f5f5,#fafafa);border:1px solid rgba(0,0,0,.06);border-radius:16px;transition:transform .3s,box-shadow .3s}.why-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0000001a}.why-icon{font-size:3.5rem;margin-bottom:1.5rem}.why-card h3{font-size:1.25rem;margin-bottom:.75rem;color:#1a1a1a}.why-card p{color:#6a6a6a;line-height:1.6}.showcase{padding:6rem 2rem;background:linear-gradient(135deg,#e3f2fd,#fff);overflow-x:hidden}.showcase-container{max-width:1200px;margin:0 auto;overflow-x:hidden;width:100%}.showcase-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;width:100%}.showcase-card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:2rem;text-align:center;transition:transform .3s,box-shadow .3s;width:100%;box-sizing:border-box}.showcase-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0277bd26}.showcase-logo{height:80px;margin-bottom:1.5rem;display:flex;align-items:center;justify-content:center}.showcase-logo img{max-height:100%;max-width:180px;width:auto;height:auto;object-fit:contain}.showcase-card h3{font-size:1.5rem;color:#1a1a1a;margin-bottom:.5rem}.showcase-category{color:#0277bd;font-weight:600;font-size:.9rem;margin-bottom:1rem}.showcase-desc{color:#6a6a6a;line-height:1.6;font-size:.95rem}.footer{background:#f5f5f5;border-top:1px solid rgba(0,0,0,.08);padding:3rem 2rem 1rem}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-bottom:2rem}.footer-column h4{color:#0277bd;margin-bottom:1rem;font-size:1.125rem}.footer-column p{color:#6a6a6a;line-height:1.6}.footer-column a{display:block;color:#4a4a4a;text-decoration:none;margin-bottom:.5rem;transition:color .3s}.footer-column a:hover{color:#0277bd}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(0,0,0,.08);color:#6a6a6a}.modal-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:flex-start;justify-content:center;z-index:2000;padding:2rem 1rem;overflow-y:auto}.modal-content{background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:20px;padding:2.5rem;max-width:450px;width:100%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 20px 60px #00000026;animation:modalSlideIn .3s ease-out;margin:auto;scrollbar-width:thin;scrollbar-color:rgba(2,119,189,.3) transparent}.modal-content::-webkit-scrollbar{width:6px}.modal-content::-webkit-scrollbar-track{background:transparent}.modal-content::-webkit-scrollbar-thumb{background:#0277bd4d;border-radius:3px}.modal-content::-webkit-scrollbar-thumb:hover{background:#0277bd80}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.modal-close{position:absolute;top:1rem;right:1rem;background:transparent;border:none;color:#6a6a6a;font-size:1.5rem;cursor:pointer;width:35px;height:35px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .3s}.modal-close:hover{background:#f5f5f5;color:#1a1a1a}.modal-header{text-align:center;margin-bottom:1.5rem}.modal-header h2{font-size:1.875rem;margin-bottom:.5rem;background:linear-gradient(135deg,#0277bd,#01579b);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.modal-header p{color:#6a6a6a;font-size:.95rem}.auth-form{display:flex;flex-direction:column;gap:1rem}.form-group label{color:#1a1a1a;font-weight:600;font-size:.9rem}.form-group input{background:#f9f9f9;border:1.5px solid #e0e0e0;border-radius:8px;padding:.875rem 1rem;color:#1a1a1a;font-size:.95rem;transition:all .3s}.form-group input:focus{outline:none;border-color:#0277bd;background:#fff;box-shadow:0 0 0 3px #0277bd1a}.form-group input::placeholder{color:#9a9a9a}.form-options{display:flex;justify-content:space-between;align-items:center;font-size:.875rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;color:#4a4a4a;cursor:pointer;font-weight:400}.checkbox-label.terms{margin-bottom:.5rem}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:#0277bd}.checkbox-label a{color:#0277bd;text-decoration:none}.checkbox-label a:hover{text-decoration:underline}.forgot-password{color:#0277bd;text-decoration:none;font-size:.875rem}.forgot-password:hover{text-decoration:underline}.submit-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:1rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s;margin-top:0}.submit-button:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0277bd4d}.divider{display:flex;align-items:center;text-align:center;margin:.25rem 0}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid #e0e0e0}.divider span{padding:0 1rem;color:#9a9a9a;font-size:.875rem}.google-button{background:#fff;border:1.5px solid #e0e0e0;color:#1a1a1a;padding:.875rem;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;gap:.5rem}.google-button:hover{background:#f9f9f9;border-color:#bdbdbd}.google-button-wrapper{display:flex;justify-content:center;align-items:center;width:100%;margin-bottom:1rem}.switch-auth{text-align:center;color:#6a6a6a;font-size:.9rem;margin-top:.25rem}.switch-auth a{color:#0277bd;text-decoration:none;font-weight:600}.switch-auth a:hover{text-decoration:underline}.profile-completion-modal{max-width:500px;max-height:90vh;overflow-y:auto}.profile-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{color:#1a1a1a;font-weight:600;font-size:.95rem}.form-group input{padding:.875rem;border:1.5px solid #e0e0e0;border-radius:8px;font-size:.95rem;transition:all .3s}.form-group input:focus{outline:none;border-color:#0277bd;box-shadow:0 0 0 3px #0277bd1a}.form-group select{padding:.875rem;border:1.5px solid #e0e0e0;border-radius:8px;font-size:.95rem;transition:all .3s;background:#fff;cursor:pointer}.form-group select:focus{outline:none;border-color:#0277bd;box-shadow:0 0 0 3px #0277bd1a}.profile-submit-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:1rem;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s;margin-top:.5rem}.profile-submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #0277bd4d}.profile-submit-button:disabled{opacity:.6;cursor:not-allowed}.profile-modal{max-width:600px;max-height:90vh;overflow-y:auto}.profile-header-content{display:flex;align-items:center;gap:1.25rem}.profile-modal-avatar{width:70px;height:70px;border-radius:50%;object-fit:cover;border:3px solid #0277bd}.profile-form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}.form-group input:disabled,.form-group select:disabled{background:#f5f5f5;color:#6a6a6a;cursor:not-allowed}.disabled-input{background:#f5f5f5!important;color:#6a6a6a!important;cursor:not-allowed!important}.input-hint{font-size:.8rem;color:#9a9a9a;margin-top:.25rem}.profile-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:1rem;padding-top:1rem;border-top:1px solid #e0e0e0}.edit-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:.875rem 2rem;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s;display:flex;align-items:center;gap:.5rem}.edit-button:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0277bd4d}.save-button{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none;padding:.875rem 1.75rem;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s}.save-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #0277bd4d}.save-button:disabled{opacity:.6;cursor:not-allowed}.cancel-button{background:#fff;color:#6a6a6a;border:1.5px solid #e0e0e0;padding:.875rem 1.75rem;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s}.cancel-button:hover:not(:disabled){background:#f5f5f5;border-color:#bdbdbd}.cancel-button:disabled{opacity:.6;cursor:not-allowed}.admin-dashboard-page{position:fixed;inset:0;background:#f8fafc;z-index:3000;overflow-y:auto;animation:fadeIn .3s ease-out}.close-admin-dashboard{position:absolute;top:2rem;left:2rem;background:#fff;color:#475569;border:1px solid #e2e8f0;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;font-size:.875rem;cursor:pointer;transition:all .3s;display:flex;align-items:center;gap:.5rem;box-shadow:0 1px 3px #0000001a}.close-admin-dashboard:hover{background:#3b82f6;color:#fff;border-color:#3b82f6;transform:translate(-3px)}.admin-dashboard-content{max-width:1400px;margin:0 auto;padding:6rem 2rem 3rem;color:#1e293b}.admin-dashboard-content h1{font-size:2.25rem;font-weight:700;margin-bottom:.5rem;color:#0f172a}.admin-subtitle{font-size:1rem;color:#64748b;margin-bottom:3rem}.admin-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;text-align:center;transition:all .3s;box-shadow:0 1px 3px #0000001a}.admin-card:hover{border-color:#3b82f6;transform:translateY(-2px);box-shadow:0 4px 12px #3b82f626}.admin-card h3{font-size:.875rem;margin-bottom:1rem;color:#64748b;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.admin-card-number{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:#3b82f6}.admin-card-label{font-size:.875rem;color:#94a3b8}.no-activity{text-align:center;padding:2rem;font-size:.9375rem;color:#94a3b8}@media(max-width:968px){.hamburger{display:flex}.nav-menu{position:fixed;top:72px;left:0;right:0;background:#fffffffa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,0,0,.08);box-shadow:0 10px 30px #0000001a;flex-direction:column;padding:1.5rem 2rem;gap:0;max-height:0;overflow:hidden;transition:all .3s ease-in-out}.nav-menu.active{max-height:500px;padding:1.5rem 2rem}.nav-menu li{width:100%;padding:.75rem 0;border-bottom:1px solid rgba(0,0,0,.06)}.nav-menu li:last-child{border-bottom:none}.nav-menu a{display:block;width:100%}.auth-buttons{display:none}.mobile-auth-buttons{display:flex;flex-direction:column;gap:.75rem;margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(0,0,0,.08)}.signin-button-mobile,.signup-button-mobile{width:100%;padding:.875rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s}.signin-button-mobile{background:transparent;color:#0277bd;border:1.5px solid #0277bd}.signin-button-mobile:hover{background:#e3f2fd}.signup-button-mobile{background:linear-gradient(135deg,#0277bd,#01579b);color:#fff;border:none}.signup-button-mobile:hover{box-shadow:0 4px 15px #0277bd4d}.user-profile-mobile{display:flex;align-items:center;gap:.75rem;padding:1rem;background:#e3f2fd;border-radius:8px}.user-avatar-mobile{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid #0277bd}.user-name-mobile{color:#01579b;font-weight:600;font-size:.95rem}.signout-button-mobile{width:100%;padding:.875rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s;background:transparent;color:#d32f2f;border:1.5px solid #d32f2f}.signout-button-mobile:hover{background:#ffebee}.hero-container{grid-template-columns:1fr}.hero-visual{display:none}.hero-title{font-size:2.5rem}.features-grid,.platforms-grid,.why-grid,.showcase-grid,.footer-container{grid-template-columns:repeat(2,1fr)}.modal-content{padding:1.75rem 1.25rem;max-height:85vh}}@media(max-width:640px){.nav-container{padding:0 1rem}.hero{padding:4rem 1rem}.hero-title{font-size:2rem}.hero-buttons{flex-direction:column}.primary-button,.secondary-button{width:100%}.hero-stats{gap:1.5rem;flex-wrap:wrap}.stat{flex:1;min-width:100px}.features{padding:4rem 1rem}.features-grid{grid-template-columns:1fr}.platforms-section{padding:4rem 1rem}.platforms-grid{grid-template-columns:1fr}.why-flutter{padding:4rem 1rem}.why-grid{grid-template-columns:1fr}.showcase{padding:4rem 1rem}.showcase-grid{grid-template-columns:1fr}.cta-section{padding:4rem 1rem}.cta-container{padding:3rem 1.5rem}.cta-container h2{font-size:2rem}.footer-container{grid-template-columns:1fr}.modal-content{padding:1.5rem 1rem;max-width:100%;max-height:90vh}.modal-header h2{font-size:1.5rem}.profile-form-row{grid-template-columns:1fr}.profile-modal-avatar{width:60px;height:60px}.profile-actions{flex-direction:column}.edit-button,.save-button,.cancel-button{width:100%;justify-content:center}.close-admin-dashboard{top:1rem;left:1rem;padding:.75rem 1.25rem;font-size:.9rem}.admin-dashboard-content{padding:5rem 1.5rem 2rem}.admin-dashboard-content h1{font-size:2rem}.admin-subtitle{font-size:1rem}.admin-cards,.admin-action-buttons{grid-template-columns:1fr}.admin-card-number{font-size:2rem}}.learning-hub-page{min-height:100vh;background:#f8fafc;padding-top:80px}.learning-hub-container{max-width:1200px;margin:0 auto;padding:3rem 2rem;min-height:calc(100vh - 80px)}.course-hero-section{margin-bottom:2.5rem;padding:3rem 2.5rem;background:#fff;border-radius:16px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000000d}.course-hero-section .hero-content{position:relative}.course-hero-section .hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.375rem .875rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:6px;color:#1e40af;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:1.25rem}.course-hero-section .badge-dot{width:6px;height:6px;background:#3b82f6;border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.course-hero-section .hero-title{font-size:2.25rem;font-weight:700;color:#0f172a;margin:0 0 .75rem;letter-spacing:-.025em;line-height:1.3}.course-hero-section .hero-subtitle{font-size:1rem;color:#64748b;margin:0 0 2rem;line-height:1.6;max-width:700px}.course-hero-section .hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem}.course-hero-section .stat-box{display:flex;align-items:center;gap:.875rem;padding:1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;transition:all .2s ease}.course-hero-section .stat-box:hover{background:#eff6ff;border-color:#bfdbfe}.course-hero-section .stat-icon{font-size:1.5rem;opacity:.9}.course-hero-section .stat-content{display:flex;flex-direction:column;gap:.125rem}.course-hero-section .stat-number{font-size:1.125rem;font-weight:700;color:#0f172a;letter-spacing:-.01em}.course-hero-section .stat-label{font-size:.75rem;color:#64748b;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.course-purchase-card{margin-bottom:2.5rem;background:#fff;border-radius:16px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000000d;overflow:hidden}.purchase-inner{padding:2.5rem;display:flex;justify-content:space-between;align-items:center;gap:2.5rem;background:#fff}.purchase-left{flex:1;display:flex;gap:3rem}.price-section{display:flex;flex-direction:column;padding-right:2.5rem;border-right:1px solid #e2e8f0}.price-label{font-size:.75rem;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.25rem}.price-display{display:flex;align-items:baseline;gap:.375rem;margin:.5rem 0 .375rem}.currency-symbol{font-size:1.25rem;font-weight:600;color:#475569}.price-amount{font-size:2.75rem;font-weight:700;color:#0f172a;letter-spacing:-.025em}.price-note{font-size:.8125rem;color:#64748b;font-weight:400}.features-section{display:flex;flex-direction:column;gap:.875rem}.feature-row{display:flex;align-items:center;gap:.75rem}.feature-icon{width:20px;height:20px;display:flex;align-items:center;justify-content:center;background:#3b82f6;color:#fff;font-size:.75rem;font-weight:700;border-radius:4px;flex-shrink:0}.feature-text{font-size:.9375rem;color:#334155;font-weight:500}.purchase-right{display:flex;flex-direction:column;align-items:center;gap:1rem}.enroll-button{padding:1rem 2.5rem;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 2px #0000000d;display:flex;align-items:center;gap:.625rem}.enroll-button:hover{background:#2563eb;box-shadow:0 4px 6px #0000001a;transform:translateY(-1px)}.enroll-button:active{transform:translateY(0);box-shadow:0 1px 2px #0000000d}.button-text{font-weight:600}.button-arrow{font-size:1.25rem;transition:transform .2s ease}.enroll-button:hover .button-arrow{transform:translate(3px)}.money-back-text{font-size:.875rem;color:#64748b;margin:0;font-weight:500;text-align:center}.course-content-section{background:#fff;border-radius:16px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000000d;overflow:hidden}.content-section-header{padding:2rem 2.5rem;border-bottom:1px solid #e2e8f0;background:#fff}.section-title{font-size:1.5rem;font-weight:700;color:#0f172a;margin:0 0 .375rem;letter-spacing:-.025em}.section-subtitle{font-size:.875rem;color:#64748b;margin:0;font-weight:400}.topics-list-modern{padding:1.5rem 2.5rem 2.5rem}.topic-card-modern{background:#fff;border:1px solid #e2e8f0;border-radius:12px;margin-bottom:1rem;transition:all .2s ease;overflow:hidden}.topic-card-modern:hover{border-color:#cbd5e1;box-shadow:0 4px 6px #0000000d}.topic-card-modern.expanded{border-color:#3b82f6;box-shadow:0 4px 6px #3b82f61a}.topic-header-modern{padding:1.5rem;display:flex;justify-content:space-between;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .2s ease}.topic-header-modern:hover{background:#f8fafc}.topic-left{display:flex;align-items:flex-start;gap:1.5rem;flex:1}.topic-number{min-width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:#3b82f6;color:#fff;font-size:1.125rem;font-weight:700;border-radius:10px;flex-shrink:0}.topic-details{flex:1;display:flex;flex-direction:column;gap:.75rem}.topic-title{font-size:1.125rem;font-weight:600;color:#0f172a;margin:0;letter-spacing:-.01em;line-height:1.4}.topic-description{font-size:.875rem;color:#64748b;margin:0;line-height:1.5}.topic-meta{display:flex;gap:1rem;flex-wrap:wrap}.meta-item{display:flex;align-items:center;gap:.375rem;font-size:.8125rem;font-weight:500;color:#64748b;padding:.375rem .75rem;background:#f8fafc;border-radius:6px}.meta-icon{font-size:1rem}.topic-right{display:flex;align-items:center;margin-left:1rem}.expand-button{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#f8fafc;border-radius:8px;transition:all .2s ease;border:1px solid #e2e8f0}.topic-card-modern:hover .expand-button{background:#eff6ff;border-color:#bfdbfe}.expand-arrow{font-size:1.25rem;color:#64748b;font-weight:700;transition:all .2s ease;transform:rotate(90deg)}.expand-arrow.rotated{transform:rotate(270deg);color:#3b82f6}.materials-container{padding:0 1.5rem 1.5rem;background:#f8fafc;border-top:1px solid #e2e8f0;animation:expandMaterials .3s ease}@keyframes expandMaterials{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.materials-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;padding-top:1.5rem}.material-card{display:flex;gap:.875rem;padding:1.125rem;background:#fff;border:1px solid #e2e8f0;border-radius:10px;transition:all .2s ease;cursor:pointer}.material-card:hover{border-color:#cbd5e1;box-shadow:0 2px 4px #0000000d;transform:translateY(-1px)}.material-number{min-width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:#f8fafc;color:#64748b;font-size:.8125rem;font-weight:600;border-radius:8px;border:1px solid #e2e8f0;flex-shrink:0}.material-content{flex:1;display:flex;flex-direction:column;gap:.75rem}.material-header{display:flex;align-items:center;gap:.5rem}.material-type-icon{font-size:1.125rem}.material-type-label{font-size:.6875rem;font-weight:600;color:#3b82f6;text-transform:uppercase;letter-spacing:.5px}.material-name{font-size:.9375rem;font-weight:600;color:#0f172a;margin:0;line-height:1.4}.material-footer{display:flex;justify-content:space-between;align-items:center}.material-time{display:flex;align-items:center;gap:.375rem;font-size:.8125rem;font-weight:500;color:#64748b;padding:.375rem .625rem;background:#f8fafc;border-radius:6px;border:1px solid #e2e8f0}.time-icon{font-size:.875rem}.play-button{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#3b82f6;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:all .2s ease;padding:0}.play-button:hover{background:#2563eb;transform:scale(1.05)}.play-icon{font-size:.875rem;margin-left:2px}.resource-preview-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;overflow:hidden;transition:all .3s ease;cursor:pointer;display:flex;flex-direction:column}.resource-preview-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f61a;transform:translateY(-2px)}.resource-preview-image{position:relative;width:100%;height:120px;background:linear-gradient(135deg,#667eea,#764ba2);overflow:hidden}.resource-preview-image img{width:100%;height:100%;object-fit:cover}.resource-type-badge{position:absolute;top:.5rem;left:.5rem;padding:.25rem .5rem;background:#fffffff2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:4px;font-size:.6875rem;font-weight:600;color:#1e293b;display:flex;align-items:center;gap:.25rem;box-shadow:0 2px 8px #0000001a}.resource-preview-content{padding:.75rem;display:flex;flex-direction:column;gap:.375rem;flex:1}.resource-preview-title{margin:0;font-size:.875rem;font-weight:600;color:#0f172a;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resource-preview-description{margin:0;font-size:.75rem;color:#64748b;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}.resource-preview-meta{margin:0;font-size:.75rem;color:#64748b;font-weight:500}.resource-preview-footer{display:flex;align-items:center;gap:.5rem;padding-top:.5rem;border-top:1px solid #f1f5f9;margin-top:auto}.resource-favicon{width:16px;height:16px;border-radius:3px;flex-shrink:0}.resource-site-name{font-size:.75rem;color:#64748b;font-weight:500;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.resource-open-button{padding:.375rem .75rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;font-size:.75rem;font-weight:600;color:#3b82f6;cursor:pointer;transition:all .2s ease;white-space:nowrap}.resource-open-button:hover{background:#3b82f6;color:#fff;border-color:#3b82f6}.video-thumbnail{background:linear-gradient(135deg,#667eea,#764ba2);position:relative}.video-thumbnail-placeholder{width:100%;height:100%;background:linear-gradient(135deg,#667eea,#764ba2)}.video-play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0000004d;z-index:1}.video-play-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#fffffff2;border-radius:50%;color:#3b82f6;font-size:1.125rem;padding-left:3px;box-shadow:0 4px 16px #0003;transition:all .3s ease}.resource-preview-card:hover .video-play-icon{transform:scale(1.1);background:#fff}.pdf-thumbnail{background:linear-gradient(135deg,#f093fb,#f5576c);position:relative}.pdf-thumbnail img{width:100%;height:100%;object-fit:cover}.pdf-thumbnail-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f093fb,#f5576c)}.pdf-icon-overlay{display:flex;flex-direction:column;align-items:center;gap:.5rem}.pdf-icon{font-size:2.5rem;filter:drop-shadow(0 4px 8px rgba(0,0,0,.15))}.pdf-label{font-size:.75rem;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:1.5px;text-shadow:0 2px 4px rgba(0,0,0,.2)}.resources-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.625rem;padding-top:.75rem}.resource-card-compact{background:#fff;border:1px solid #e2e8f0;border-radius:8px;overflow:hidden;transition:all .2s ease;cursor:pointer;display:flex;flex-direction:column}.resource-card-compact:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f61a;transform:translateY(-2px)}.resource-card-image{position:relative;width:100%;height:90px;overflow:hidden;background:#f8fafc}.resource-card-image img{width:100%;height:100%;object-fit:cover}.resource-card-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff}.link-placeholder,.video-placeholder{background:linear-gradient(135deg,#667eea,#764ba2)}.pdf-placeholder{background:linear-gradient(135deg,#f093fb,#f5576c)}.resource-card-badge{position:absolute;top:.375rem;right:.375rem;padding:.1875rem .375rem;background:#fffffff2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:3px;font-size:.625rem;font-weight:600;color:#1e293b;box-shadow:0 2px 8px #0000001a}.resource-card-body{padding:.5rem;display:flex;flex-direction:column;gap:.25rem}.resource-card-title{margin:0;font-size:.75rem;font-weight:600;color:#0f172a;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resource-card-description{margin:0;font-size:.625rem;color:#64748b;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.resource-card-meta{margin:0;font-size:.625rem;color:#94a3b8;font-weight:500}.resource-card-footer{display:flex;align-items:center;gap:.25rem;padding-top:.25rem;border-top:1px solid #f1f5f9;margin-top:.25rem}.resource-card-favicon{width:12px;height:12px;border-radius:2px;flex-shrink:0}.resource-card-site{font-size:.625rem;color:#94a3b8;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:1024px){.learning-hub-container{padding:2.5rem 1.5rem}.course-hero-section{padding:2.5rem 2rem;margin-bottom:2rem}.course-hero-section .hero-title{font-size:2rem}.course-hero-section .hero-subtitle{font-size:.9375rem}.purchase-inner{padding:2rem;gap:2rem}.price-section{padding-right:2rem}.price-amount{font-size:2.5rem}.content-section-header{padding:1.75rem 2rem}.section-title{font-size:1.375rem}.topics-list-modern{padding:1.25rem 2rem 2rem}.topic-header-modern{padding:1.25rem}.materials-grid{grid-template-columns:1fr}}@media(max-width:768px){.learning-hub-container{padding:2rem 1rem}.course-hero-section{padding:2rem 1.5rem;border-radius:12px;margin-bottom:1.5rem}.course-hero-section .hero-title{font-size:1.75rem}.course-hero-section .hero-subtitle{font-size:.875rem;margin-bottom:1.5rem}.course-hero-section .hero-stats{grid-template-columns:repeat(2,1fr);gap:.75rem}.course-hero-section .stat-box{padding:.875rem}.course-hero-section .stat-number{font-size:1rem}.course-purchase-card{margin-bottom:1.5rem}.purchase-inner{padding:1.75rem;flex-direction:column;gap:1.75rem}.purchase-left{flex-direction:column;gap:1.75rem;width:100%}.price-section{padding-right:0;border-right:none;padding-bottom:1.5rem;border-bottom:1px solid #e2e8f0}.price-amount{font-size:2.25rem}.purchase-right{width:100%}.enroll-button{width:100%;padding:1rem 2rem;justify-content:center}.content-section-header{padding:1.5rem}.section-title{font-size:1.25rem}.section-subtitle{font-size:.8125rem}.topics-list-modern{padding:1rem 1.5rem 1.5rem}.topic-card-modern{border-radius:10px;margin-bottom:.875rem}.topic-header-modern{padding:1.125rem;flex-direction:column;align-items:flex-start;gap:1rem}.topic-left{width:100%}.topic-number{min-width:44px;height:44px;font-size:1rem}.topic-title{font-size:1rem}.topic-description{font-size:.8125rem}.topic-right{margin-left:0;width:100%;justify-content:flex-end}.materials-container{padding:0 1.125rem 1.125rem}.materials-grid{gap:.75rem;padding-top:1rem}.material-card{padding:1rem}.resources-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.5rem}.resource-card-image{height:80px}.resource-card-body{padding:.625rem}.resource-card-title{font-size:.8125rem}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.learning-hub-section{padding:6rem 2rem;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);position:relative;overflow:hidden}.learning-hub-section:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="1.5" fill="rgba(102, 126, 234, 0.1)"/></svg>');pointer-events:none}.roadmap-container{max-width:1400px;margin:0 auto;position:relative;z-index:1}.roadmap-header{text-align:center;margin-bottom:4rem;animation:fadeInDown .8s ease}.roadmap-title{font-size:2.8rem;font-weight:800;color:#2c3e50;margin-bottom:1rem;letter-spacing:-1px}.roadmap-subtitle{font-size:1.2rem;color:#7f8c8d;font-weight:400}.roadmap-levels{display:flex;gap:3rem;padding:2rem 1rem 4rem;overflow-x:auto;scroll-behavior:smooth;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;position:relative}.roadmap-levels:before{content:"";position:absolute;top:120px;left:0;right:0;height:4px;background:linear-gradient(90deg,transparent 0%,#667eea 10%,#667eea 90%,transparent 100%);background-size:200% 100%;animation:flowRight 3s linear infinite;z-index:0}@keyframes flowRight{0%{background-position:-200% 0}to{background-position:200% 0}}.roadmap-levels::-webkit-scrollbar{height:8px}.roadmap-levels::-webkit-scrollbar-track{background:#0000000d;border-radius:10px}.roadmap-levels::-webkit-scrollbar-thumb{background:linear-gradient(90deg,#667eea,#764ba2);border-radius:10px}.level-card{min-width:320px;max-width:320px;background:#fff;border-radius:20px;padding:0;box-shadow:0 10px 40px #0000001a;transition:all .4s cubic-bezier(.68,-.55,.265,1.55);scroll-snap-align:center;position:relative;z-index:1;overflow:hidden;cursor:pointer}.level-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#667eea,#764ba2);transform:scaleX(0);transition:transform .4s ease}.level-hovered{transform:translateY(-10px) scale(1.02);box-shadow:0 20px 60px #667eea4d}.level-hovered:before{transform:scaleX(1)}.level-badge-top{padding:1.5rem 1.5rem .5rem;text-align:center}.badge-text{display:inline-block;padding:.4rem 1.2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:20px;font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}.level-icon-circle{width:100px;height:100px;margin:1rem auto;position:relative;display:flex;align-items:center;justify-content:center}.icon-glow{position:absolute;inset:-5px;background:radial-gradient(circle,rgba(102,126,234,.2) 0%,transparent 70%);border-radius:50%;animation:glowPulse 2s ease-in-out infinite}@keyframes glowPulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}}.level-icon{font-size:4rem;position:relative;z-index:1;transition:all .4s ease;filter:drop-shadow(0 4px 8px rgba(0,0,0,.1))}.level-hovered .level-icon{transform:scale(1.15) rotate(5deg)}.level-content{padding:0 1.5rem 1.5rem}.level-title{font-size:1.5rem;font-weight:700;color:#2c3e50;margin-bottom:.5rem;text-align:center}.level-description{font-size:.95rem;color:#7f8c8d;text-align:center;margin-bottom:1rem;line-height:1.5}.level-info{display:flex;justify-content:center;align-items:center;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.info-duration{font-size:.85rem;color:#667eea;font-weight:600}.info-difficulty{padding:.3rem .8rem;border-radius:15px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.difficulty-beginner{background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff}.difficulty-intermediate{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.difficulty-advanced{background:linear-gradient(135deg,#fa709a,#fee140);color:#fff}.level-topics{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:1.5rem}.topic-chip{padding:.35rem .8rem;background:#f0f3f7;color:#667eea;border-radius:12px;font-size:.75rem;font-weight:600;transition:all .3s ease}.level-hovered .topic-chip{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;transform:translateY(-2px)}.level-start-btn{width:calc(100% - 3rem);margin:0 1.5rem 1.5rem;padding:.9rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 15px #667eea4d}.level-start-btn:hover{transform:translateY(-2px);box-shadow:0 6px 25px #667eea80}.btn-arrow{font-size:1.1rem;transition:all .3s ease}.level-start-btn:hover .btn-arrow{transform:translate(5px)}.level-connector{position:absolute;top:120px;right:-3rem;width:3rem;height:4px;background:linear-gradient(90deg,#667eea,transparent);z-index:-1}.roadmap-completion{margin-top:3rem;text-align:center}.completion-badge{display:inline-block;padding:2rem 3rem;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:20px;box-shadow:0 10px 40px #667eea4d;animation:float 3s ease-in-out infinite}.completion-icon{font-size:4rem;display:block;margin-bottom:1rem;filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}.completion-text{font-size:1.2rem;font-weight:700;color:#fff;margin:0}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media(max-width:968px){.roadmap-title{font-size:2.2rem}.roadmap-subtitle{font-size:1.1rem}.level-card{min-width:280px;max-width:280px}.roadmap-levels{gap:2rem}.level-connector{right:-2rem;width:2rem}}@media(max-width:640px){.learning-hub-section{padding:4rem 1rem}.roadmap-title{font-size:1.8rem}.roadmap-subtitle{font-size:1rem}.level-card{min-width:260px;max-width:260px}.level-icon{font-size:3.5rem}.completion-badge{padding:1.5rem 2rem}.completion-icon{font-size:3rem}.completion-text{font-size:1rem}}.roadmap-section{padding:8rem 2rem;background:linear-gradient(180deg,#f8f9fc,#fff);position:relative;overflow:hidden}.roadmap-section:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(102,126,234,.2),transparent)}.roadmap-container{max-width:1200px;margin:0 auto;position:relative;z-index:1}.roadmap-header{text-align:center;margin-bottom:6rem;animation:fadeInDown .6s ease}.roadmap-title{font-size:2.75rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.75rem;letter-spacing:-.02em}.roadmap-subtitle{font-size:1.125rem;color:#64748b;font-weight:400;letter-spacing:.01em}.roadmap-path{display:grid;grid-template-columns:repeat(5,1fr);gap:5rem 2rem;padding:2rem 1rem;position:relative;max-width:1000px;margin:0 auto;justify-items:center;align-items:start}.roadmap-line{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0}.roadmap-line-bg{fill:none;stroke:#e2e8f0;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 2px 8px rgba(0,0,0,.08))}.roadmap-line-animated{fill:none;stroke:url(#lineGradient);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:15 15;animation:dashAnimation 25s linear infinite,pulse 3s ease-in-out infinite;filter:drop-shadow(0 0 8px rgba(102,126,234,.4)) drop-shadow(0 0 12px rgba(118,75,162,.3));opacity:.9}@keyframes dashAnimation{to{stroke-dashoffset:-1000}}@keyframes pulse{0%,to{opacity:.9}50%{opacity:.6}}.roadmap-dot{filter:drop-shadow(0 0 6px rgba(102,126,234,.6))}.roadmap-dot-1{animation:dotPulse 2s ease-in-out infinite}.roadmap-dot-2{animation:dotPulse 2.5s ease-in-out infinite .5s}.roadmap-dot-3{animation:dotPulse 2.2s ease-in-out infinite 1s}@keyframes dotPulse{0%,to{opacity:.8;r:4}50%{opacity:1;r:6}}.roadmap-step{display:flex;flex-direction:column;align-items:center;gap:1.25rem;position:relative;z-index:1;animation:fadeInUp .5s ease backwards}.roadmap-step:nth-child(2){animation-delay:.05s}.roadmap-step:nth-child(3){animation-delay:.1s}.roadmap-step:nth-child(4){animation-delay:.15s}.roadmap-step:nth-child(5){animation-delay:.2s}.roadmap-step:nth-child(6){animation-delay:.25s}.roadmap-step:nth-child(7){animation-delay:.3s}.roadmap-step:nth-child(8){animation-delay:.35s}.roadmap-step:nth-child(9){animation-delay:.4s}.roadmap-step:nth-child(10){animation-delay:.45s}.roadmap-circle{width:110px;height:110px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 20px #00000014;position:relative;border:3px solid #f1f5f9}.roadmap-circle:before{content:"";position:absolute;inset:-4px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);opacity:0;transition:all .3s ease;z-index:-1}.roadmap-circle:hover,.roadmap-circle-hovered{transform:translateY(-8px);box-shadow:0 12px 40px #667eea33;border-color:transparent}.roadmap-circle:hover:before,.roadmap-circle-hovered:before{opacity:1;inset:-2px}.roadmap-icon{font-size:3rem;line-height:1;transition:all .3s ease}.roadmap-circle:hover .roadmap-icon,.roadmap-circle-hovered .roadmap-icon{transform:scale(1.1)}.roadmap-step-title{font-size:.95rem;font-weight:600;color:#334155;text-align:center;margin:0;transition:all .3s ease;line-height:1.4;max-width:120px;letter-spacing:-.01em}.roadmap-step:hover .roadmap-step-title{color:#667eea}@keyframes fadeInUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@media(max-width:968px){.roadmap-section{padding:6rem 2rem}.roadmap-title{font-size:2.25rem}.roadmap-subtitle{font-size:1rem}.roadmap-header{margin-bottom:4rem}.roadmap-path{grid-template-columns:repeat(3,1fr);gap:4rem 1.5rem;padding:1.5rem .5rem}.roadmap-circle{width:90px;height:90px}.roadmap-icon{font-size:2.5rem}.roadmap-step-title{font-size:.875rem;max-width:100px}}@media(max-width:640px){.roadmap-section{padding:5rem 1.5rem}.roadmap-title{font-size:1.875rem}.roadmap-subtitle{font-size:.9375rem}.roadmap-header{margin-bottom:3rem}.roadmap-path{grid-template-columns:repeat(2,1fr);gap:3.5rem 1rem;padding:1rem 0}.roadmap-circle{width:80px;height:80px;border-width:2px}.roadmap-icon{font-size:2.25rem}.roadmap-step-title{font-size:.8125rem;max-width:90px}}.admin-dashboard-page{min-height:100vh;background:#f8fafc;padding:2rem}.close-admin-dashboard{margin-bottom:2rem;padding:.75rem 1.5rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px;font-size:.875rem;font-weight:600;color:#475569;cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #0000001a}.close-admin-dashboard:hover{background:#3b82f6;color:#fff;border-color:#3b82f6;transform:translate(-4px)}.admin-dashboard-content{max-width:1400px;margin:0 auto}.admin-dashboard-content h1{font-size:2.25rem;font-weight:700;color:#0f172a;margin:0 0 .5rem}.admin-subtitle{font-size:1rem;color:#64748b;margin:0 0 2rem}.admin-alert{padding:1rem 1.5rem;border-radius:8px;margin-bottom:1.5rem;font-weight:600;font-size:.875rem}.admin-alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.admin-alert-success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.admin-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:3rem}.admin-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 1px 3px #0000001a;transition:all .3s ease;border:1px solid #e2e8f0}.admin-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #3b82f626;border-color:#3b82f6}.admin-card-icon{font-size:2.5rem;margin-bottom:1rem}.admin-card h3{font-size:.875rem;font-weight:600;color:#64748b;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.05em}.admin-card-number{font-size:2rem;font-weight:700;color:#3b82f6;margin:0 0 .25rem}.admin-card-label{font-size:.875rem;color:#94a3b8;margin:0}.admin-section{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 1px 3px #0000001a;margin-bottom:2rem;border:1px solid #e2e8f0}.admin-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.admin-section h2{font-size:1.5rem;font-weight:700;color:#0f172a;margin:0}.admin-btn-primary{padding:.75rem 1.5rem;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #3b82f64d}.admin-btn-primary:hover:not(:disabled){background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f666}.admin-btn-primary:disabled{opacity:.6;cursor:not-allowed}.admin-btn-secondary{padding:.75rem 1.5rem;background:#fff;color:#475569;border:1px solid #e2e8f0;border-radius:8px;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .3s ease}.admin-btn-secondary:hover{background:#f8fafc;border-color:#cbd5e1}.admin-btn-small{padding:.5rem 1rem;background:#fff;color:#3b82f6;border:1px solid #3b82f6;border-radius:6px;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .3s ease}.admin-btn-small:hover{background:#3b82f6;color:#fff}.admin-btn-danger{color:#dc2626;border-color:#dc2626}.admin-btn-danger:hover{background:#dc2626;color:#fff}.admin-form{background:#f8fafc;padding:1.5rem;border-radius:12px;margin-bottom:2rem;border:1px solid #e2e8f0}.admin-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:1.5rem}.admin-form-group{display:flex;flex-direction:column;gap:.5rem}.admin-form-group label{font-size:.875rem;font-weight:700;color:#475569;text-transform:uppercase;letter-spacing:.05em}.admin-form-group input,.admin-form-group textarea,.admin-form-group select{padding:.875rem 1rem;border:2px solid #e2e8f0;border-radius:10px;font-size:1rem;font-family:inherit;transition:all .3s ease;background:#fff}.admin-form-group input:focus,.admin-form-group textarea:focus,.admin-form-group select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}.admin-form-group textarea{resize:vertical;min-height:100px}.admin-form-actions{display:flex;gap:1rem;margin-top:1.5rem}.admin-topics-list{display:flex;flex-direction:column;gap:1.5rem;margin-top:2rem}.admin-topic-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;transition:all .3s ease;box-shadow:0 1px 3px #0000001a}.admin-topic-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f626}.admin-topic-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;gap:1rem;flex-wrap:wrap}.admin-topic-info{display:flex;gap:1rem;align-items:flex-start;flex:1}.admin-topic-number{min-width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#3b82f6;color:#fff;font-size:1rem;font-weight:700;border-radius:8px;flex-shrink:0}.admin-topic-info h3{font-size:1.25rem;font-weight:700;color:#0f172a;margin:0 0 .5rem}.admin-topic-info p{font-size:.9375rem;color:#64748b;margin:0;line-height:1.5}.admin-topic-meta{display:flex;gap:.75rem;flex-wrap:wrap}.admin-badge{padding:.5rem 1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;font-size:.8125rem;font-weight:600;color:#475569;white-space:nowrap}.admin-topic-actions{display:flex;gap:.75rem;margin-top:1rem;flex-wrap:wrap}.admin-materials-list{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid #e2e8f0}.admin-materials-list h4{font-size:1rem;font-weight:700;color:#475569;margin:0 0 1rem}.admin-material-item{display:flex;align-items:center;gap:1rem;padding:.875rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin-bottom:.75rem}.material-icon{font-size:1.25rem}.material-title{flex:1;font-size:.9375rem;font-weight:600;color:#1e293b}.material-duration{font-size:.875rem;font-weight:600;color:#3b82f6;padding:.375rem .75rem;background:#eff6ff;border-radius:6px}.material-type{font-size:.75rem;font-weight:700;color:#64748b;padding:.375rem .75rem;background:#f1f5f9;border-radius:6px;text-transform:uppercase}.admin-modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem}.admin-modal{background:#fff;padding:2rem;border-radius:16px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d}.admin-modal h3{font-size:1.375rem;font-weight:700;color:#0f172a;margin:0 0 1.5rem}.admin-modal-enhanced{max-width:640px}.admin-modal-large{max-width:720px}.modal-header{display:flex;gap:1rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:2px solid #f1f5f9}.modal-header-icon{font-size:2.5rem;line-height:1;flex-shrink:0}.modal-header-content{flex:1}.modal-header-content h3{font-size:1.5rem;font-weight:700;color:#0f172a;margin:0 0 .5rem}.modal-subtitle{font-size:.9375rem;color:#64748b;margin:0;line-height:1.5}.modal-form-section{background:#f8fafc;border-radius:12px;padding:1.5rem;margin-bottom:1.5rem;border:1px solid #e2e8f0}.section-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1.25rem}.section-icon{font-size:1.25rem;line-height:1}.section-header h4{font-size:1rem;font-weight:600;color:#1e293b;margin:0}.resource-type-selector{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}.resource-type-option{background:#fff;border:2px solid #e2e8f0;border-radius:10px;padding:1.25rem 1rem;text-align:center;cursor:pointer;transition:all .3s ease;position:relative}.resource-type-option:hover{border-color:#3b82f6;transform:translateY(-2px);box-shadow:0 4px 12px #3b82f626}.resource-type-option.active{border-color:#3b82f6;background:linear-gradient(135deg,#ebf4ff,#fff);box-shadow:0 4px 12px #3b82f633}.resource-type-option.active:after{content:"✓";position:absolute;top:.5rem;right:.5rem;background:#3b82f6;color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.type-icon{font-size:2rem;margin-bottom:.5rem}.type-label{font-size:.9375rem;font-weight:600;color:#1e293b;margin-bottom:.25rem}.type-desc{font-size:.75rem;color:#64748b}.admin-form-group label{display:flex;align-items:center;gap:.5rem}.label-icon{font-size:1rem}.input-hint{display:block;margin-top:.5rem;font-size:.8125rem;color:#64748b;font-style:normal}.file-upload-area{position:relative}.file-upload-placeholder{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:2rem 1rem;background:#fff;border:2px dashed #cbd5e1;border-radius:8px;color:#64748b;font-size:.9375rem;pointer-events:none;transition:all .3s ease}.file-upload-area:hover .file-upload-placeholder{border-color:#3b82f6;background:#f8fafc}.upload-icon{font-size:2rem}.file-upload-area input[type=file]{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.file-info-card{display:flex;align-items:center;gap:1rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:1rem;margin-top:.75rem}.file-icon{font-size:2rem;flex-shrink:0}.file-details{flex:1;min-width:0}.file-name{font-size:.9375rem;font-weight:600;color:#1e293b;margin:0 0 .25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:.8125rem;color:#64748b;margin:0}.url-input-group{display:flex;gap:.75rem}.url-input-group input{flex:1}.preview-btn{padding:0 1.5rem;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-weight:600;font-size:.875rem;cursor:pointer;transition:all .3s ease;white-space:nowrap}.preview-btn:hover:not(:disabled){background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.preview-btn:disabled{opacity:.5;cursor:not-allowed}.link-preview-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;overflow:hidden;transition:all .3s ease}.link-preview-card:hover{box-shadow:0 4px 12px #00000014}.link-preview-image{width:100%;height:200px;overflow:hidden;background:#f1f5f9;display:flex;align-items:center;justify-content:center}.link-preview-image img{width:100%;height:100%;object-fit:cover}.link-preview-content{padding:1.25rem}.link-preview-title{font-size:1.125rem;font-weight:700;color:#0f172a;margin:0 0 .75rem;line-height:1.4}.link-preview-description{font-size:.875rem;color:#64748b;line-height:1.6;margin:0 0 1rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.link-preview-footer{display:flex;align-items:center;gap:.5rem;padding-top:.75rem;border-top:1px solid #f1f5f9}.site-favicon{width:16px;height:16px;border-radius:2px}.site-name{font-size:.8125rem;color:#64748b;font-weight:500}.upload-progress-container{margin-bottom:1.5rem;padding:1.5rem;background:linear-gradient(135deg,#ebf4ff,#f8fafc);border-radius:12px;border:1px solid #bfdbfe}.upload-progress-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.progress-icon{font-size:1.5rem}.progress-title{font-size:.9375rem;font-weight:600;color:#1e40af}.upload-progress-bar{width:100%;height:8px;background:#dbeafe;border-radius:4px;overflow:hidden;margin-bottom:.5rem}.upload-progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#2563eb);transition:width .3s ease;border-radius:4px}.upload-progress-text{font-size:.8125rem;font-weight:600;color:#1e40af;text-align:right;margin:0}.admin-btn-primary span{margin-right:.375rem}.admin-form-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:2rem;padding-top:1.5rem;border-top:2px solid #f1f5f9}.admin-loading{text-align:center;color:#64748b;font-size:1rem;padding:2rem}.no-activity{text-align:center;color:#94a3b8;font-size:1rem;padding:2rem}.learning-hub-page .no-activity{color:#475569;font-weight:500}.upload-progress-container{margin-bottom:1.5rem;padding:1.25rem;background:#f8fafc;border-radius:8px;border:1px solid #e2e8f0}.upload-progress-bar{width:100%;height:6px;background:#e2e8f0;border-radius:3px;overflow:hidden;margin-bottom:.75rem}.upload-progress-fill{height:100%;background:#3b82f6;transition:width .3s ease;border-radius:3px}.upload-progress-text{font-size:.8125rem;font-weight:600;color:#3b82f6;text-align:center;margin:0}.admin-form-group input[type=file]{padding:.75rem;cursor:pointer}.admin-form-group input[type=file]::file-selector-button{padding:.5rem 1rem;background:#3b82f6;color:#fff;border:none;border-radius:6px;font-weight:600;cursor:pointer;margin-right:1rem;transition:all .3s ease;font-size:.8125rem}.admin-form-group input[type=file]::file-selector-button:hover{background:#2563eb;transform:translateY(-1px);box-shadow:0 2px 8px #3b82f64d}.file-info{margin:.5rem 0 0;font-size:.875rem;color:#64748b;font-weight:500}.file-note{margin:.5rem 0 0;font-size:.75rem;color:#94a3b8;font-style:italic}.material-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:1rem;margin-bottom:1rem;transition:all .3s ease}.material-card:hover{border-color:#3b82f6;box-shadow:0 2px 8px #3b82f61a}.material-card-header{display:flex;justify-content:space-between;align-items:center;gap:1rem}.material-header-left{display:flex;align-items:center;gap:.75rem;flex:1}.material-expand-btn{cursor:pointer;color:#64748b;transition:all .3s ease;display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:6px;background:#fff;border:1px solid #e2e8f0}.material-expand-btn:hover{background:#3b82f6;color:#fff;border-color:#3b82f6}.material-icon-badge{font-size:1.5rem;display:flex;align-items:center;justify-content:center}.material-info{flex:1}.material-title-main{font-size:.9375rem;font-weight:600;color:#0f172a;margin-bottom:.5rem}.material-meta{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}.meta-badge{padding:.25rem .625rem;background:#eff6ff;color:#3b82f6;border-radius:4px;font-size:.75rem;font-weight:600;text-transform:uppercase}.meta-duration{font-size:.8125rem;color:#64748b}.meta-resources{font-size:.8125rem;color:#10b981;font-weight:600}.material-actions{display:flex;gap:.5rem}.action-btn{padding:.5rem .75rem;border-radius:6px;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.375rem;border:1px solid}.add-resource-btn{background:#fff;color:#10b981;border-color:#10b981}.add-resource-btn:hover{background:#10b981;color:#fff}.delete-btn{background:#fff;color:#dc2626;border-color:#dc2626;padding:.5rem}.delete-btn:hover{background:#dc2626;color:#fff}.material-card-body{margin-top:1rem;padding-top:1rem;border-top:1px solid #e2e8f0}.resource-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;overflow:hidden;position:relative;transition:all .3s ease;display:flex;flex-direction:column}.resource-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f626;transform:translateY(-2px)}.resource-video{background:linear-gradient(135deg,#eff6ff,#dbeafe)}.resource-pdf{background:linear-gradient(135deg,#fef3c7,#fde68a)}.resource-link{background:linear-gradient(135deg,#f0fdf4,#dcfce7)}.resource-preview-container{width:100%;height:160px;background:#f8fafc;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.resource-preview-icon{font-size:4rem;opacity:.3}.resource-video .resource-preview-container{background:linear-gradient(135deg,#1e293b,#334155)}.resource-pdf .resource-preview-container{background:linear-gradient(135deg,#fff,#f8fafc);border-bottom:1px solid #e2e8f0}.resource-link .resource-preview-container{background:#fff;border-bottom:1px solid #e2e8f0}.video-preview-placeholder{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center}.video-play-icon{width:60px;height:60px;background:#3b82f6e6;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}.pdf-preview-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:#fff;position:relative}.pdf-pages-icon{font-size:3rem;color:#dc2626}.resource-card-body{padding:1rem;flex:1;display:flex;flex-direction:column}.resource-card-icon{font-size:1.5rem;margin-bottom:.5rem;display:inline-block}.resource-card-content{flex:1;min-width:0}.resource-card-title{font-size:.9375rem;font-weight:600;color:#0f172a;margin-bottom:.5rem;word-wrap:break-word;line-height:1.4}.resource-card-meta{font-size:.75rem;color:#64748b;display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.75rem}.resource-card-badge{display:inline-block;padding:.25rem .5rem;background:#f8fafc;color:#3b82f6;border-radius:4px;font-size:.6875rem;font-weight:600;text-transform:uppercase}.resource-delete-btn{position:absolute;top:.75rem;right:.75rem;background:#fffffff2;border:1px solid #fecaca;color:#dc2626;border-radius:6px;padding:.5rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #0000001a;z-index:10}.resource-delete-btn:hover{background:#dc2626;color:#fff;border-color:#dc2626;transform:scale(1.05)}.link-card-with-image{position:relative;width:100%;height:200px;border-radius:8px;overflow:hidden}.link-card-image{width:100%;height:100%;object-fit:cover}.link-card-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,rgba(0,0,0,.8),transparent);padding:1rem}.link-card-content{color:#fff}.link-favicon{width:16px;height:16px;margin-bottom:.5rem;border-radius:2px}.link-card-title{font-size:.875rem;font-weight:600;margin-bottom:.375rem}.link-card-description{font-size:.75rem;opacity:.9;margin-bottom:.375rem;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.link-card-site{font-size:.6875rem;opacity:.8;text-transform:uppercase;letter-spacing:.05em}.empty-resources{text-align:center;padding:2rem;color:#94a3b8}.empty-resources svg{margin:0 auto 1rem}.empty-resources p{font-size:.9375rem;font-weight:600;color:#64748b;margin:0 0 .5rem}.empty-resources span{font-size:.8125rem;color:#94a3b8}.preview-link-btn{padding:.5rem 1rem;background:#3b82f6;color:#fff;border:none;border-radius:6px;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.375rem;margin-top:.5rem}.preview-link-btn:hover:not(:disabled){background:#2563eb}.preview-link-btn:disabled{opacity:.6;cursor:not-allowed}.link-preview-container{margin-top:1rem;padding:1rem;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px}.link-preview-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem}.link-preview-favicon{width:20px;height:20px;border-radius:4px}.link-preview-title{font-size:.9375rem;font-weight:600;color:#0f172a}.link-preview-description{font-size:.8125rem;color:#64748b;margin-bottom:.5rem;line-height:1.5}.link-preview-site{font-size:.75rem;color:#94a3b8;font-weight:600;text-transform:uppercase;letter-spacing:.05em}@media(max-width:768px){.admin-dashboard-page{padding:1rem}.admin-section{padding:1.5rem}.admin-section-header{flex-direction:column;align-items:stretch}.admin-form{padding:1.5rem}.admin-form-grid{grid-template-columns:1fr}.admin-topic-header{flex-direction:column}.admin-topic-meta{width:100%}.admin-modal{padding:1.5rem;max-width:100%;margin:1rem}.admin-modal-enhanced,.admin-modal-large{max-width:100%}.modal-header{flex-direction:column;text-align:center}.modal-header-icon{font-size:2rem}.modal-header-content h3{font-size:1.25rem}.modal-subtitle{font-size:.875rem}.resource-type-selector{grid-template-columns:1fr}.modal-form-section{padding:1rem}.url-input-group{flex-direction:column}.preview-btn{width:100%}.link-preview-image{height:150px}.admin-form-actions{flex-direction:column-reverse}.admin-form-actions button{width:100%}.material-card-header{flex-direction:column;align-items:flex-start}.material-actions{width:100%}.action-btn{flex:1;justify-content:center}.resources-grid{grid-template-columns:1fr}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.admin-modal-enhanced,.resource-type-option,.file-info-card,.link-preview-card{animation:fadeIn .3s ease}
