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fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.main-stage{animation:.8s ease-out fadeIn}.breadcrumb{background:var(--bg-cream);color:var(--primary-slate);border-radius:10px;margin-left:30px;padding:5px 15px;font-size:.9rem;font-weight:600}.student-list{gap:8px;margin-left:20px;display:flex}.student-input{background:#fdfdfd;border:1px solid #eee;border-radius:8px;width:80px;height:32px;padding:0 10px;font-size:.8rem}.bell-dropdown{z-index:100;background:#fff;border-radius:20px;flex-direction:column;gap:8px;min-width:280px;padding:15px;animation:.3s ease-out fadeIn;display:flex;position:absolute;top:70px;right:40px;box-shadow:0 15px 50px #0000001a}.bell-item{cursor:pointer;color:var(--primary-slate);transition:var(--transition);text-align:left;background:#f8f9fa;border:none;border-radius:12px;padding:12px 18px;font-size:.9rem}.bell-item:hover{background:var(--bg-cream);color:#333;transform:translate(5px)}.bell-modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:9999;background:#00000080;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}.bell-modal{background:#fff;border-radius:30px;width:90%;max-width:500px;padding:40px;animation:.4s cubic-bezier(.175,.885,.32,1.275) modalSlideUp;box-shadow:0 30px 60px #0000004d}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(50px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-header{justify-content:space-between;align-items:center;margin-bottom:25px;display:flex}.modal-header h3{color:var(--primary-slate);font-size:1.6rem;font-weight:700}.close-btn{cursor:pointer;color:#ddd;transition:var(--transition);background:0 0;border:none;font-size:2.5rem;line-height:1}.close-btn:hover{color:#333;transform:rotate(90deg)}.modal-hint{color:#999;margin-bottom:25px;font-size:1rem}.bell-grid{flex-direction:column;gap:12px;display:flex}.app-footer{text-align:center;color:#bdc3c7;letter-spacing:2px;z-index:10;pointer-events:none;width:100%;font-size:.8rem;position:absolute;bottom:20px}#app{background-color:var(--bg-cream);height:100vh;overflow:hidden}.layout-container{flex-direction:column;width:100%;height:100vh;display:flex;overflow:hidden}.navbar{background:#fff;justify-content:space-between;align-items:center;height:70px;padding:0 40px;display:flex;box-shadow:0 2px 15px #00000008}.class-title{color:var(--primary-slate);letter-spacing:-.5px;font-size:1.4rem;font-weight:800}.brand-subtitle{letter-spacing:2px;color:var(--text-muted);text-transform:uppercase;font-size:.7rem}.viewport{flex:1;position:relative;overflow:hidden}.content-wrapper{width:100%;height:100%}.app-footer{text-align:center;color:#bdc3c7;letter-spacing:1px;background:#fff;border-top:1px solid #f0f0f0;padding:15px;font-size:.75rem}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}