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#0000004d}.page-content{padding:1.5rem}.mobile-overlay{animation:fadeIn .25s ease-out}@keyframes fadeIn{0%{opacity:0;backdrop-filter:blur(0px)}to{opacity:1;backdrop-filter:blur(2px)}}}@media (max-width: 480px){.main-content{padding:.75rem;min-height:calc(100vh - 3.5rem)}.page-content{padding:1rem}.mobile-overlay{backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);background:rgba(0,0,0,.6)}.layout{overflow-x:hidden;-webkit-overflow-scrolling:touch}input,select,textarea{font-size:16px!important}button,.nav-item,.nav-main{touch-action:manipulation}}.payment-overlay{position:fixed;inset:0;background-color:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.payment-modal{background:white;border-radius:12px;box-shadow:0 20px 50px #0000004d;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;position:relative}.payment-header{display:flex;justify-content:space-between;align-items:center;padding:20px 30px;border-bottom:1px solid 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h4{font-size:18px;color:#333;margin-bottom:15px;font-weight:600}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #f0f0f0}.detail-row:last-child{border-bottom:none;font-weight:600;font-size:16px;color:#333}.detail-label{color:#666;font-size:14px}.detail-value{color:#333;font-weight:500}.payment-methods{margin-bottom:30px}.payment-methods h4{font-size:18px;color:#333;margin-bottom:15px;font-weight:600}.method-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px}.method-card{border:2px solid #e9ecef;border-radius:8px;padding:15px;text-align:center;cursor:pointer;transition:all .3s ease;background:white}.method-card:hover{border-color:#007bff;transform:translateY(-2px);box-shadow:0 4px 12px #007bff26}.method-card.selected{border-color:#007bff;background:linear-gradient(135deg,#667eea 0%,#764ba2 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h4{margin-bottom:15px;color:#333}.qr-placeholder{width:200px;height:200px;background:white;border:2px dashed #dee2e6;border-radius:8px;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;color:#6c757d;font-size:14px}.transfer-info{background:white;padding:15px;border-radius:6px;text-align:left;margin-top:15px}.transfer-info p{margin:5px 0;font-size:14px}.transfer-info strong{color:#007bff}.payment-loading{text-align:center;padding:40px 20px}.payment-loading .spinner{width:40px;height:40px;border:3px solid #f3f3f3;border-top:3px solid #007bff;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.payment-overlay{padding:10px}.payment-modal{max-height:95vh}.payment-header{padding:15px 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768px){.bottom-section,.stats-cards,.details-grid{grid-template-columns:1fr;gap:1rem}.welcome-section{margin-bottom:1.5rem}.semester-title{font-size:1.25rem;margin-bottom:1rem}.stat-card,.profile-section,.details-section{padding:1.25rem;margin-bottom:1rem}.stat-card{gap:.75rem}.stat-icon{width:2.5rem;height:2.5rem;font-size:1.25rem;flex-shrink:0}.stat-value{font-size:1.25rem}.profile-image-large{width:5rem;height:5rem}.avatar-large-placeholder{font-size:1.75rem}.profile-name{font-size:1.125rem}.section-title{font-size:1.125rem;margin-bottom:1rem;text-align:center}.detail-item{flex-direction:column;align-items:flex-start;padding:.75rem}.detail-label{margin-bottom:.25rem;font-size:.875rem}.detail-value{font-size:1rem;word-break:break-word}.filter-section{flex-direction:column;align-items:center;gap:.75rem;margin:1rem 0}.score-sections{padding:1rem 0}.stat-card,.detail-item,button,select,input{min-height:44px}.stat-card:active{transform:scale(.98)}body{font-size:14px}h1,h2,h3{word-break:break-word}}@media (max-width: 480px){.stat-card,.profile-section,.details-section{padding:1rem;border-radius:.5rem}.stat-icon{width:2.25rem;height:2.25rem}.stat-value{font-size:1.125rem}.stat-label{font-size:.75rem}.semester-title{font-size:1.125rem}.details-grid{max-height:70vh;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-right:.5rem}}.scoreboard-page{display:flex;width:100%;height:100vh;background-color:var(--background-color);font-family:Roboto,sans-serif}.scoreboard-page .sidebar{width:264px;height:100vh;background-color:var(--background-color);box-shadow:3px 4px 11px 1px #16bbe3;position:fixed;left:0;top:0;z-index:100}.scoreboard-page .sidebar-logo{display:flex;align-items:center;padding:18px 30px;gap:15px}.scoreboard-page .logo-icon{width:72px;height:74px;display:flex;align-items:center;justify-content:center}.scoreboard-page .logo-placeholder{font-size:38px;color:var(--primary-color)}.scoreboard-page .logo-text{font-size:32px;font-weight:400;color:var(--font-primary);font-family:Roboto,sans-serif}.scoreboard-page .sidebar-nav{padding:0 23px;margin-top:40px}.scoreboard-page .nav-item{margin-bottom:25px}.scoreboard-page .nav-item>span{display:flex;align-items:center;width:211px;height:54px;padding:0 11px;border-radius:15px;background-color:var(--background-color);cursor:pointer;transition:all .3s ease;font-size:19px;font-weight:500;color:var(--font-secondary);font-family:Roboto,sans-serif}.scoreboard-page .nav-item.active>span{background-color:var(--primary-color);color:var(--font-primary)}.scoreboard-page .nav-subitems{margin-top:10px;margin-left:30px}.scoreboard-page .nav-subitem{display:flex;align-items:center;gap:10px;height:40px;padding:0 11px;margin-bottom:10px;cursor:pointer}.scoreboard-page .nav-subitem span{font-size:19px;font-weight:500;color:var(--font-primary);font-family:Roboto,sans-serif}.scoreboard-page .nav-subitem.active span{color:var(--font-primary)}.scoreboard-page .dot{width:8px;height:8px;border-radius:50%;background-color:#ccc}.scoreboard-page .dot.active-dot{background-color:var(--primary-color)}.scoreboard-page .main-content{margin-left:264px;width:calc(100% - 264px);height:100vh;overflow-y:auto;padding-top:76px}.scoreboard-page .header{display:flex;align-items:center;height:76px;background-color:var(--background-color);box-shadow:0 1px 4px #00000040;padding:0 22px;position:fixed;top:0;left:264px;right:0;z-index:50;width:calc(100% - 264px)}.scoreboard-page .menu-button{width:39px;height:39px;background-color:var(--primary-color);border-radius:5px;display:flex;align-items:center;justify-content:center;cursor:pointer}.scoreboard-page .menu-icon{color:#fff;font-size:19px}.scoreboard-page .page-title{font-size:19px;font-weight:600;color:var(--font-primary);margin-left:92px;font-family:Roboto,sans-serif}.scoreboard-page .user-section{display:flex;align-items:center;gap:15px;margin-left:auto}.scoreboard-page .profile-image{width:54px;height:52px;border-radius:50%;overflow:hidden;display:flex;align-items:center;justify-content:center;background-color:#f0f0f0}.scoreboard-page .avatar-placeholder{font-size:26px;color:var(--font-secondary)}.scoreboard-page .username{font-size:19px;font-weight:500;color:var(--font-primary);font-family:Roboto,sans-serif}.scoreboard-page .logout-btn{background-color:var(--primary-color);color:var(--font-primary);border:none;padding:6px 16px;border-radius:5px;font-size:16px;font-weight:500;cursor:pointer;font-family:Roboto,sans-serif;transition:background-color .3s ease}.scoreboard-page .logout-btn:hover{background-color:#14a8c9}.score-sections{padding:0 21px 21px}.score-table-container{background-color:var(--background-color);border-radius:15px;box-shadow:0 1px 5px 2px #00000040;padding:20px;margin-bottom:30px}.semester-title{font-size:19px;font-weight:600;color:var(--font-primary);margin-bottom:20px;font-family:Roboto,sans-serif}.score-table{width:100%;border-collapse:collapse;border:1px solid #d1d5db;border-radius:8px;overflow:hidden;background:white}.score-table thead{background-color:#b4c8f1}.score-table th{padding:12px 16px;text-align:center;font-weight:600;color:#374151;border-right:1px solid #d1d5db;font-size:16px}.score-table th:last-child{border-right:none}.score-table td{padding:12px 16px;text-align:center;border-right:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb;font-size:15px;color:#374151}.score-table td:last-child{border-right:none}.score-table tbody tr:last-child td{border-bottom:none}.score-table tbody tr:hover{background-color:#f9fafb}.score-table .subject-column{text-align:left;width:40%;font-weight:500}.score-table 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td{border-bottom:none}.score-table tbody tr:hover{background-color:#f9fafb}.score-table th:nth-child(1),.score-table td:nth-child(1){width:45%;text-align:left;font-weight:500;padding-left:5px}.score-table th:nth-child(2),.score-table td:nth-child(2){width:12%}.score-table th:nth-child(3),.score-table td:nth-child(3){width:12%}.score-table th:nth-child(4),.score-table td:nth-child(4){width:14%}.score-table th:nth-child(5),.score-table td:nth-child(5){width:15%}.score-table th:nth-child(1):after{content:"Tên môn học"}.score-table th:nth-child(2):after{content:"TC"}.score-table th:nth-child(3):after{content:"Hệ 4"}.score-table th:nth-child(4):after{content:"Hệ 10"}.score-table th:nth-child(5):after{content:"KQ"}.score-table th{font-size:0}.score-table td:nth-child(3),.score-table td:nth-child(4){font-weight:600;color:#1f2937}.score-table td:nth-child(5){font-weight:600;color:#059669;font-size:10px}.semester-summary{background:linear-gradient(135deg,#1e3a8a 0%,#3b82f6 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#00000040;padding:30px;margin-bottom:30px}.section-title{font-family:Roboto,sans-serif;font-weight:600;font-size:24px;color:#2e4765;margin-bottom:20px;margin-top:0}.class-info{background-color:#f8f9fa;padding:20px;border-radius:10px;margin-bottom:25px;display:flex;gap:40px;flex-wrap:wrap;justify-content:space-between}.info-group{display:flex;flex-direction:column;gap:8px;min-width:200px}.class-info p{margin:0;font-family:Inter,sans-serif;font-size:16px;color:#2e4765;line-height:1.4}.class-info strong{font-weight:600;color:#1e1e1e}.scoreboard-table{width:100%;border-collapse:collapse;border:1px solid #d1d5db;border-radius:10px;overflow:hidden;background-color:#fff}.scoreboard-table thead{background-color:#f3f4f6}.scoreboard-table th{padding:12px 16px;text-align:center;font-weight:600;color:#374151;border-right:1px solid #d1d5db;font-size:16px}.scoreboard-table th:last-child{border-right:none}.scoreboard-table td{padding:12px 16px;text-align:center;border-right:1px solid 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