@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f1f5f9;--bg-surface:#f1f5f9;--accent-primary:#4f46e5;--accent-primary-hover:#4338ca;--accent-primary-light:#eef2ff;--accent-secondary:#0891b2;--accent-tertiary:#ec4899;--accent-success:#059669;--accent-warning:#d97706;--accent-danger:#dc2626;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#94a3b8;--text-accent:#4f46e5;--border-color:#e2e8f0;--border-accent:#4f46e540;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #00000012,0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014,0 4px 6px -4px #0000000d;--shadow-card:0 1px 3px #0000000f,0 1px 2px #0000000a;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--subject-1:#6366f1;--subject-2:#0891b2;--subject-3:#db2777;--subject-4:#059669;--subject-5:#d97706;--subject-6:#ea580c;--subject-7:#7c3aed;--subject-8:#dc2626;--subject-9:#0d9488;--subject-10:#c026d3}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;overflow:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.app-container{flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);z-index:100;flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 28px;display:flex}.header-left{align-items:center;gap:16px;display:flex}.logo{align-items:center;gap:10px;display:flex}.logo-icon{background:var(--accent-primary);border-radius:var(--radius-sm);color:#fff;justify-content:center;align-items:center;width:38px;height:38px;font-size:18px;font-weight:800;display:flex;box-shadow:0 2px 8px #4f46e540}.logo-text{color:var(--text-primary);letter-spacing:-.5px;font-size:19px;font-weight:700}.logo-text span{color:var(--accent-primary)}.header-right{align-items:center;gap:14px;display:flex}.user-profile{background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border-color);align-items:center;gap:12px;padding:6px 12px;display:flex}.user-name{color:var(--text-primary);font-size:13px;font-weight:600}.btn-logout{border:1px solid var(--border-color);color:var(--accent-danger,#ef4444);background:0 0;padding:4px 8px;font-size:11px}.btn-logout:hover{color:#dc2626;background:#fef2f2;border-color:#fca5a5}.login-container{background:var(--bg-primary);justify-content:center;align-items:center;height:calc(100vh - 60px);padding:20px;display:flex}.login-card{background:var(--bg-surface);border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-xl);border:1px solid var(--border-color);padding:40px 30px}.login-header{text-align:center;margin-bottom:30px}.login-icon{margin-bottom:16px;font-size:48px;animation:2s ease-in-out infinite welcomeBounce}.login-header h2{color:var(--text-primary);margin-bottom:8px;font-size:24px;font-weight:700}.login-header p{color:var(--text-secondary);font-size:14px}.login-form{flex-direction:column;gap:20px;display:flex}.login-error{color:#b91c1c;border-radius:var(--radius-sm);background:#fef2f2;border:1px solid #fecaca;padding:12px;font-size:13px;font-weight:500}.form-group{flex-direction:column;gap:8px;display:flex}.form-group label{color:var(--text-secondary);font-size:13px;font-weight:600}.form-group input[type=text],.form-group input[type=password]{border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:12px;font-family:inherit;font-size:14px;transition:all .2s}.form-group input[type=text]:focus,.form-group input[type=password]:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 3px #4f46e51a}.checkbox-group{gap:4px}.checkbox-group label{cursor:pointer;color:var(--text-primary);align-items:center;gap:8px;font-weight:500;display:flex}.help-text{color:var(--text-tertiary);margin-left:20px;font-size:11px}.login-btn{margin-top:10px;padding:12px;font-size:15px;font-weight:600}@keyframes welcomeBounce{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.select-wrapper{position:relative}.custom-select{appearance:none;background:var(--bg-surface);border:1px solid var(--border-color);color:var(--text-primary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;max-width:400px;padding:9px 38px 9px 14px;font-family:Inter,sans-serif;font-size:13px;font-weight:500;transition:all .2s;overflow:hidden}.custom-select:hover{border-color:var(--accent-primary);background:#fff}.custom-select:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 3px #4f46e51a}.select-wrapper:after{content:"▾";color:var(--text-tertiary);pointer-events:none;font-size:12px;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.control-bar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);flex-shrink:0;justify-content:space-between;align-items:center;padding:10px 28px;display:flex}.control-left{align-items:center;gap:10px;display:flex}.control-right{align-items:center;gap:8px;display:flex}.btn{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;justify-content:center;align-items:center;gap:6px;padding:7px 16px;font-family:Inter,sans-serif;font-size:13px;font-weight:500;transition:all .2s;display:inline-flex}.btn:hover{border-color:var(--accent-primary);background:var(--accent-primary-light);color:var(--accent-primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-icon{min-width:34px;padding:7px 10px;font-size:16px}.btn-primary{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.btn-primary:hover{background:var(--accent-primary-hover);border-color:var(--accent-primary-hover);color:#fff}.zoom-indicator{color:var(--text-secondary);text-align:center;background:var(--bg-surface);border-radius:var(--radius-sm);border:1px solid var(--border-color);min-width:44px;padding:5px 10px;font-size:12px;font-weight:600}.week-info{color:var(--text-secondary);font-size:13px;font-weight:500}.week-info strong{color:var(--text-primary)}.date-jump-input{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;border-radius:8px;padding:6px 10px;font-size:13px}.week-list-wrapper{position:relative}.week-list-backdrop{z-index:99;position:fixed;inset:0}.week-list-dropdown{z-index:100;background:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-md);border-radius:10px;flex-direction:column;min-width:200px;max-height:280px;padding:4px;display:flex;position:absolute;top:calc(100% + 6px);left:0;overflow-y:auto}.week-list-item{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;white-space:nowrap;background:0 0;border:none;border-radius:7px;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;font-size:13px;transition:background .15s;display:flex}.week-list-item:hover{background:var(--accent-primary-light);color:var(--accent-primary)}.week-list-item.selected{background:var(--accent-primary-light);color:var(--accent-primary);font-weight:600}.week-list-item.current-week{font-weight:500}.week-list-badge{background:var(--accent-primary);color:#fff;border-radius:20px;flex-shrink:0;padding:1px 7px;font-size:11px;font-weight:600}.timetable-scroll-wrapper{background:var(--bg-primary);flex:1;overflow:auto}.timetable-table{border-collapse:separate;border-spacing:0;table-layout:fixed;width:100%;min-width:900px}.timetable-table thead th{z-index:20;text-align:center;color:var(--text-secondary);background:var(--bg-secondary);border-bottom:2px solid var(--border-color);border-right:1px solid var(--border-color);padding:14px 8px;font-size:13px;font-weight:600;position:sticky;top:0}.th-session-corner{width:80px;min-width:80px;left:0;z-index:30!important;position:sticky!important}.th-day{font-weight:600}.th-day.today{color:var(--accent-primary);border-bottom-color:var(--accent-primary);background:var(--accent-primary-light)!important}.day-name{margin-bottom:2px;font-size:14px;font-weight:700}.day-date{color:var(--text-tertiary);font-size:11px;font-weight:400}.session-separator-row{background:var(--bg-surface);border-bottom:1px solid var(--border-color)}.separator-cell{text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);border-bottom:2px solid var(--border-color);border-top:2px solid var(--border-color);text-align:center;background:#f8fafc;padding:10px 14px;font-size:13px;font-weight:700}.session-morning-label{color:var(--accent-warning)}.session-afternoon-label{color:var(--accent-secondary)}.session-evening-label{color:#8b5cf6}.td-period-time{z-index:10;background:var(--bg-secondary);border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);text-align:center;vertical-align:middle;width:80px;min-width:80px;padding:8px 4px;position:sticky;left:0}.period-name{color:var(--text-primary);margin-bottom:4px;font-size:13px;font-weight:700}.period-time{color:var(--text-tertiary);font-size:9.5px;font-weight:500}.td-day-cell{border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);vertical-align:top;background:var(--bg-primary);height:60px;padding:4px;transition:background .2s}.td-subject-cell{padding:4px}.stacked-subjects{flex-direction:column;gap:4px;height:100%;display:flex}.td-day-cell:hover{background:#f1f5f9}.td-day-cell.today{background:#4f46e508}.subject-card{border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-card);border:1px solid #0000;flex-grow:1;padding:11px 13px;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.subject-card:hover{box-shadow:var(--shadow-lg);z-index:5;transform:translateY(-2px)scale(1.01)}.subject-card>*{z-index:1;position:relative}.subject-name{word-break:break-word;margin-bottom:3px;font-size:12.5px;font-weight:700;line-height:1.35}.subject-code{opacity:.6;margin-bottom:7px;font-size:10.5px;font-weight:500}.subject-meta{flex-direction:column;gap:4px;display:flex}.subject-meta-item{color:var(--text-secondary);align-items:center;gap:5px;font-size:10.5px;display:flex}.subject-meta-item .icon{flex-shrink:0;font-size:12px}.subject-badge{text-transform:uppercase;letter-spacing:.5px;border-radius:5px;align-items:center;padding:2px 7px;font-size:9px;font-weight:700;display:inline-flex}.badge-lt{color:var(--accent-primary);background:#4f46e51a}.badge-th{color:var(--accent-success);background:#0596691a}.badge-tl{color:var(--accent-secondary);background:#0891b21a}.subject-color-0{background:#eef2ff;border-color:#c7d2fe}.subject-color-0 .subject-name{color:#4338ca}.subject-color-0 .subject-code{color:#6366f1}.subject-color-1{background:#ecfeff;border-color:#a5f3fc}.subject-color-1 .subject-name{color:#0e7490}.subject-color-1 .subject-code{color:#0891b2}.subject-color-2{background:#fdf2f8;border-color:#fbcfe8}.subject-color-2 .subject-name{color:#be185d}.subject-color-2 .subject-code{color:#db2777}.subject-color-3{background:#ecfdf5;border-color:#a7f3d0}.subject-color-3 .subject-name{color:#047857}.subject-color-3 .subject-code{color:#059669}.subject-color-4{background:#fffbeb;border-color:#fde68a}.subject-color-4 .subject-name{color:#b45309}.subject-color-4 .subject-code{color:#d97706}.subject-color-5{background:#fff7ed;border-color:#fed7aa}.subject-color-5 .subject-name{color:#c2410c}.subject-color-5 .subject-code{color:#ea580c}.subject-color-6{background:#f5f3ff;border-color:#ddd6fe}.subject-color-6 .subject-name{color:#6d28d9}.subject-color-6 .subject-code{color:#7c3aed}.subject-color-7{background:#fef2f2;border-color:#fecaca}.subject-color-7 .subject-name{color:#b91c1c}.subject-color-7 .subject-code{color:#dc2626}.stats-bar{background:var(--bg-secondary);border-top:1px solid var(--border-color);flex-shrink:0;align-items:center;gap:24px;padding:11px 28px;display:flex;box-shadow:0 -1px 3px #00000008}.stat-item{color:var(--text-secondary);align-items:center;gap:6px;font-size:12.5px;display:flex}.stat-value{color:var(--accent-primary);font-weight:700}.stat-dot{border-radius:50%;width:8px;height:8px}.loading-container{flex-direction:column;justify-content:center;align-items:center;gap:16px;height:100%;display:flex}.loading-spinner{border:3px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--text-secondary);font-size:14px;font-weight:500}.error-container{flex-direction:column;justify-content:center;align-items:center;gap:12px;height:100%;display:flex}.error-icon{font-size:48px}.error-text{color:var(--text-secondary);text-align:center;max-width:400px;font-size:14px}.empty-state{color:var(--text-tertiary);flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:40px;display:flex}.empty-state .icon{margin-bottom:8px;font-size:40px}.empty-state .title{color:var(--text-secondary);font-size:16px;font-weight:600}.empty-state .subtitle{font-size:13px}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0f172a66;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:90%;max-width:500px;box-shadow:var(--shadow-lg),0 0 40px #4f46e514;padding:28px;animation:.3s cubic-bezier(.4,0,.2,1) slideUp}.modal-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;display:flex}.modal-title{color:var(--text-primary);word-break:break-word;flex:1;padding-right:12px;font-size:18px;font-weight:700;line-height:1.4}.modal-close{border:1px solid var(--border-color);background:var(--bg-surface);width:34px;height:34px;color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;justify-content:center;align-items:center;font-size:16px;transition:all .2s;display:flex}.modal-close:hover{color:var(--accent-danger);background:#fee2e2;border-color:#fecaca}.modal-body{flex-direction:column;gap:14px;display:flex}.modal-row{align-items:flex-start;gap:12px;display:flex}.modal-row-label{color:var(--text-tertiary);min-width:100px;padding-top:2px;font-size:12.5px;font-weight:500}.modal-row-value{color:var(--text-primary);flex:1;font-size:13.5px;font-weight:600}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.legend-container{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.legend-item{color:var(--text-secondary);background:var(--bg-surface);border-radius:var(--radius-sm);border:1px solid var(--border-color);align-items:center;gap:6px;padding:4px 10px;font-size:11px;font-weight:500;display:flex}.legend-dot{border-radius:3px;width:8px;height:8px}.view-tabs{background:var(--bg-surface);border-radius:var(--radius-sm);border:1px solid var(--border-color);display:flex;overflow:hidden}.view-tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:7px 16px;font-family:Inter,sans-serif;font-size:12px;font-weight:500;transition:all .2s}.view-tab:hover{color:var(--text-primary);background:var(--bg-card-hover)}.view-tab.active{color:#fff;background:var(--accent-primary)}@media (max-width:1024px){.custom-select{max-width:300px}.legend-container{display:none}}@media (max-width:768px){.app-header{flex-direction:column;align-items:stretch;gap:8px;padding:10px 12px}.header-left{justify-content:center}.logo-text{font-size:16px}.logo-icon{width:32px;height:32px;font-size:15px}.header-right{flex-direction:row;gap:8px;width:100%}.mssv-group{flex:none}.mssv-label{display:none}.mssv-input{width:90px;padding:7px 8px;font-size:12px}.mssv-btn{width:30px;height:30px;font-size:12px}.select-wrapper{flex:1;min-width:0}.custom-select{width:100%;max-width:100%;padding:7px 28px 7px 10px;font-size:11px}.control-bar{gap:6px;padding:8px 12px}.control-left{flex-wrap:wrap;justify-content:flex-start;gap:4px 6px;width:100%}.week-info{text-align:center;order:10;width:100%;font-size:11px}.btn{border-radius:6px;padding:6px 10px;font-size:12px}.btn-icon{min-width:30px;padding:6px 8px;font-size:14px}.week-list-dropdown{max-height:240px;left:auto;right:0}.timetable-scroll-wrapper{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}.timetable-table{min-width:700px}.th-session-corner{width:50px;min-width:50px;font-size:12px}.th-day .day-name{font-size:12px}.th-day .day-date{font-size:10px}.timetable-table thead th{padding:10px 4px}.td-session-label{width:50px;min-width:50px}.session-label-text{letter-spacing:2px;font-size:11px}.session-time{font-size:9px}.td-period-time{width:60px;min-width:60px;padding:6px 2px}.period-name{font-size:11px}.period-time{font-size:8px}.td-day-cell{height:50px;padding:2px}.subject-card{border-radius:8px;margin-bottom:4px;padding:8px}.subject-name{margin-bottom:2px;font-size:11px}.subject-code{margin-bottom:4px;font-size:9px}.subject-meta{gap:2px}.subject-meta-item{gap:3px;font-size:9px}.subject-meta-item .icon{font-size:10px}.subject-badge{padding:1px 4px;font-size:8px}.stats-bar{flex-wrap:wrap;gap:12px;padding:8px 12px}.stat-item{font-size:11px}.legend-container{display:none}.modal-content{border-radius:12px;width:95%;max-width:none;max-height:85vh;padding:20px 16px;overflow-y:auto}.modal-title{font-size:16px}.modal-row{flex-direction:column;gap:2px}.modal-row-label{min-width:unset;font-size:11px}.modal-row-value{font-size:13px}.modal-body{gap:10px}.welcome-container{padding:24px 16px}.welcome-icon{font-size:40px}.welcome-title{font-size:18px}.welcome-text,.loading-text{font-size:13px}.error-icon{font-size:36px}.error-text{padding:0 16px;font-size:13px}}@media (max-width:400px){.app-header{padding:8px}.header-right{flex-direction:column;gap:6px}.mssv-group{width:100%}.mssv-input{flex:1;width:100%}.mssv-input-wrapper{flex:1}.timetable-table{min-width:600px}.th-session-corner{width:40px;min-width:40px}.td-period-time{width:46px;min-width:46px;padding:4px 1px}.period-name{font-size:10px}.period-time{white-space:nowrap;font-size:8.5px;transform:scale(.9)}.td-day-cell{height:44px;padding:2px}.subject-card{padding:6px}.subject-name{font-size:10px}.subject-meta-item{font-size:8px}.subject-meta-item .icon{display:none}.control-left{gap:4px}.btn{padding:5px 8px;font-size:11px}.week-info{font-size:10px}.stats-bar{gap:8px;padding:6px 8px}.stat-item{font-size:10px}}