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.2s}.sign-out-button:hover{background:#d32f2f}.loading-container,.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;text-align:center;padding:2rem}.loading-spinner{width:50px;height:50px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container h2{color:#f44336;margin-bottom:1rem}.error-container p{color:#666;font-size:1.1rem}.main-content{display:flex;flex-direction:column;gap:2rem;margin-top:2rem}.content-panels{display:flex;gap:2rem;align-items:flex-start}.left-panel{flex:1;min-width:0}.middle-panel{flex:0 0 400px;display:flex;flex-direction:column;gap:2rem}.rightmost-panel{flex:0 0 350px;display:flex;flex-direction:column}.term-timeline{text-align:left;max-width:700px;margin:0 auto}.term-timeline-container{display:flex;flex-direction:row;overflow-x:auto;padding:1rem 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0;padding:0;font-weight:400;text-align:center;line-height:1.2}.term-content{display:flex;flex-direction:column;gap:1rem}.term-section{margin-bottom:.5rem}.term-section-any{border-top:1px dashed #ccc;padding-top:1rem;margin-top:.5rem}.term-section-title{font-size:.9rem;font-weight:600;color:#666;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.5px}.term-course-list{list-style:none;padding:0;margin:0}.term-course-item{padding:.5rem 0;border-bottom:1px solid #f0f0f0;cursor:pointer;transition:background-color .2s}.term-course-item:hover{background-color:#f5f5f5}.term-course-item:last-child{border-bottom:none}.term-course-item.term-course-any{padding-left:1rem;position:relative}.course-link{text-decoration:none;color:#333;display:flex;gap:.5rem;align-items:flex-start;transition:color .2s;pointer-events:none}.course-code{font-weight:600;color:#4a90e2;min-width:70px}.course-title{flex:1;font-size:.9rem;color:#666}.course-toggle-btn:disabled{opacity:.5;cursor:not-allowed;background-color:#ccc;color:#666}.course-toggle-btn:disabled:hover{background-color:#ccc;color:#666}.course-toggle-btn{margin-top:.5rem;padding:.25rem .75rem;font-size:.85rem;background:#4a90e2;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background .2s}.course-toggle-btn:hover{background:#357abd}.term-course-item.course-selected{background:#e8f5e9;border-left:3px solid #4caf50;padding-left:.5rem}.term-course-item .selected-indicator{color:#4caf50;font-weight:700;margin-left:auto}.requirement-boxes{text-align:left}.requirement-boxes h2{margin-bottom:1.5rem;color:#333}.requirement-boxes-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}.requirement-box{background:#fff;border:2px solid #e0e0e0;border-radius:12px;padding:1.5rem;box-shadow:0 2px 8px #0000001a;transition:all 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0;padding-left:1.5rem;color:#333}.course-detail li{margin:.25rem 0;color:#333}.course-detail strong{color:#333;font-weight:600}.course-detail a{color:#06c;text-decoration:none}.course-detail a:hover{text-decoration:underline}@media (max-width: 1200px){.main-content{flex-direction:column}.middle-panel,.rightmost-panel{flex:1;width:100%}.course-detail{position:static}}@media (max-width: 768px){.term-timeline-container{flex-direction:column}.term-connector{width:3px;height:2rem;margin-right:0;margin-bottom:1rem}.term-connector:after{right:-4px;top:auto;bottom:-6px;border-left:6px solid transparent;border-right:6px solid transparent;border-top:8px solid #6bb3ff;border-bottom:none}}.sign-in-container{display:flex;justify-content:center;align-items:center;min-height:60vh;width:100%;padding:2rem}.sign-in-card{background:#fff;border-radius:8px;padding:2.5rem;box-shadow:0 2px 8px #0000001a;color:#333;max-width:500px;width:100%;text-align:center}.sign-in-card h2{margin:0 0 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