@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap";:root{--color-primary:#1d3557;--color-primary-light:#457b9d;--color-secondary:#e63946;--color-accent:#a8dadc;--color-bg:#f8f9fa;--color-surface:#fffffff2;--color-text:#2b2d42;--color-text-light:#6c757d;--color-border:#dee2e6;--shadow-sm:0 2px 4px #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-glass:0 8px 32px 0 #1f268712;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--transition:all .3s cubic-bezier(.25, .8, .25, 1)}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--color-text);min-height:100vh;font-family:Inter,sans-serif;line-height:1.6}h1,h2,h3,h4,h5,h6{color:var(--color-primary);margin-bottom:.5rem;font-weight:600;line-height:1.2}.glass-panel{background:var(--color-surface);-webkit-backdrop-filter:blur(16px);border-radius:var(--radius-xl);box-shadow:var(--shadow-glass);border:1px solid #fff9}.form-group{margin-bottom:1.5rem;position:relative}.form-label{color:var(--color-primary);transition:var(--transition);margin-bottom:.5rem;font-size:.95rem;font-weight:600;display:block}.form-label.required:after{content:" *";color:var(--color-secondary)}.form-control{width:100%;color:var(--color-text);border:1.5px solid var(--color-border);border-radius:var(--radius-md);transition:var(--transition);background-color:#fff;padding:.75rem 1rem;font-family:inherit;font-size:1rem;box-shadow:inset 0 2px 4px #00000005}.form-control:focus{border-color:var(--color-primary-light);outline:none;box-shadow:0 0 0 4px #457b9d26}.form-control:disabled{cursor:not-allowed;opacity:.8;background-color:#e9ecef}.custom-control{cursor:pointer;border-radius:var(--radius-md);transition:var(--transition);border:1px solid #0000;align-items:flex-start;margin-bottom:.75rem;padding:.75rem;display:flex}.custom-control:hover{background-color:#457b9d08;border-color:#457b9d1a}.custom-control.selected{border-color:var(--color-primary-light);background-color:#457b9d14}.custom-control input{width:1.25rem;height:1.25rem;accent-color:var(--color-primary);cursor:pointer;margin-top:.25rem;margin-right:1rem}.custom-control label{cursor:pointer;font-weight:500}.custom-control.disabled{opacity:.5;cursor:not-allowed}.custom-control.disabled input,.custom-control.disabled label{cursor:not-allowed}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);border:none;justify-content:center;align-items:center;padding:.875rem 2rem;font-size:1.1rem;font-weight:600;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--color-primary), var(--color-primary-light));color:#fff;box-shadow:0 4px 15px #1d35574d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #1d355766}.btn-primary:active{transform:translateY(1px)}.section-title{border-bottom:2px solid var(--color-accent);margin-top:2rem;margin-bottom:1.5rem;padding-bottom:.5rem;font-size:1.5rem;position:relative}.section-title:first-child{margin-top:0}.section-title:after{content:"";background-color:var(--color-secondary);border-radius:3px;width:60px;height:3px;position:absolute;bottom:-2px;left:0}.file-upload-wrapper{border:2px dashed var(--color-primary-light);border-radius:var(--radius-md);text-align:center;transition:var(--transition);cursor:pointer;background-color:#ffffffb3;padding:2rem}.file-upload-wrapper:hover{border-color:var(--color-primary);background-color:#fffffff2;transform:scale(1.01)}.note{color:var(--color-text-light);margin-top:.5rem;font-size:.85rem;font-style:italic;display:block}.error-message{color:var(--color-secondary);margin-top:.5rem;font-size:.875rem;font-weight:500;display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.6s ease-out forwards fadeIn}.slide-down{animation:.4s ease-out forwards slideDown}@keyframes slideDown{0%{opacity:0;max-height:0;overflow:hidden;transform:translateY(-10px)}to{opacity:1;max-height:3000px;transform:translateY(0)}}.grid-2{grid-template-columns:1fr 1fr;gap:1.5rem;display:grid}@media (width<=768px){.grid-2{grid-template-columns:1fr}.btn{width:100%;padding:.85rem 1rem;font-size:1rem}.mobile-stack{flex-direction:column!important;align-items:stretch!important}.mobile-stack>*{width:100%!important}.mobile-inline-wrap{flex-wrap:wrap!important}.mobile-inline-wrap>*{max-width:100%}.mobile-table-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto}.mobile-table-scroll table{min-width:720px}.mobile-two-col-row{flex-direction:column!important;gap:.35rem!important}.mobile-two-col-row>:first-child,.mobile-two-col-row>:last-child{width:100%!important}.mobile-preview-layout{flex-direction:column!important}.mobile-preview-pane,.mobile-info-pane{flex:100%!important;max-width:100%!important}.mobile-preview-pane{min-height:70vh;height:auto!important;position:static!important;top:auto!important}.mobile-admin-grid{grid-template-columns:1fr!important}.mobile-card-padding{padding:1rem!important}.mobile-text-break{word-break:break-word;overflow-wrap:anywhere;white-space:normal!important}}.app-container{background-image:linear-gradient(#0f172ab3,#0f172a66),url(https://www.is.vnu.edu.vn/wp-content/uploads/2026/05/ChatGPT-Image-May-5-2026-04_51_04-PM.png);background-position:50%;background-size:cover;background-attachment:fixed;flex-direction:column;align-items:center;min-height:100vh;padding:3rem 1rem;display:flex}.main-content{z-index:1;width:100%;max-width:900px;margin:0 auto;position:relative}.custom-banner{border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);background:linear-gradient(135deg,#0b1d3a 0%,#051024 100%);border:1px solid #ffffff1a;margin-bottom:2.5rem;padding:2rem;position:relative;overflow:hidden}.custom-banner:after{content:"";z-index:0;border:2px solid #ffffff08;border-radius:50%;width:200px;height:200px;position:absolute;bottom:-50px;right:-50px;box-shadow:0 0 0 40px #ffffff03,0 0 0 80px #ffffff03}.banner-content{z-index:1;justify-content:center;align-items:center;gap:2rem;display:flex;position:relative}.banner-icon-wrapper{background-color:#d4af370d;border:1.5px solid #d4af37;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:90px;height:90px;display:flex}.banner-icon{color:#e5b842;stroke:#e5b842;fill:#e5b842;width:50px;height:50px}.banner-text{text-align:left;flex:1}.banner-text h3{color:#fff;letter-spacing:.5px;margin-bottom:.2rem;font-size:clamp(1.1rem,2vw,1.4rem);font-weight:500}.banner-text h2{color:#e5b842;text-transform:uppercase;letter-spacing:1px;margin-bottom:.3rem;font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:700}.banner-text p{color:#fff;margin-bottom:.8rem;font-size:clamp(1rem,1.8vw,1.2rem);font-weight:400}.banner-underline{background-color:#d4af37;width:80px;height:2px}.banner-logo-wrapper{justify-content:center;align-items:center;margin-left:1rem;display:flex}.banner-logo{object-fit:contain;transform-origin:50%;width:250px;height:auto;max-height:140px;transform:scale(1.3)}@media (width<=768px){.banner-content{text-align:center;flex-direction:column;gap:1.5rem}.banner-text{text-align:center;flex:unset}.banner-underline{margin:0 auto}.banner-logo-wrapper{margin-top:1rem;margin-left:0}}.form-wrapper{margin-bottom:2rem;padding:2.5rem}.footer{z-index:1;text-align:center;color:#fff;opacity:.8;margin-top:2rem;padding-top:1rem;font-size:.9rem;position:relative}@media (width<=768px){.app-container{background-attachment:scroll;padding:1rem}.header h1{font-size:1.8rem}.header h2{font-size:1.2rem}.form-wrapper{padding:1.5rem}.custom-banner{margin-bottom:1.25rem;padding:1.25rem}.banner-icon-wrapper{width:72px;height:72px}.banner-logo{width:180px;max-height:100px;transform:none}}