:root{--bg-primary: #0b0d14;--bg-secondary: #121520;--bg-card: #171b28;--bg-card-hover: #1c2135;--border: rgba(255, 255, 255, .06);--border-accent: rgba(99, 132, 255, .2);--text-primary: #eef0f6;--text-secondary: #8a8fa8;--text-muted: #565b73;--accent: #6384ff;--accent-glow: rgba(99, 132, 255, .15);--success: #3dd68c;--success-glow: rgba(61, 214, 140, .15);--warning: #ffb647;--warning-glow: rgba(255, 182, 71, .15);--danger: #ff6b6b;--danger-glow: rgba(255, 107, 107, .15);--purple: #a78bfa;--purple-glow: rgba(167, 139, 250, .15);--radius: 12px;--radius-sm: 8px;--radius-xs: 6px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:dark}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg-primary);color:var(--text-primary)}.app-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);padding:28px 20px;display:flex;flex-direction:column;gap:32px;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:10px}.orbit-icon{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--purple));display:grid;place-items:center;position:relative}.orbit-icon:before{content:"";width:20px;height:20px;border-radius:50%;border:2px solid rgba(255,255,255,.3);position:absolute}.orbit-icon:after{content:"";width:6px;height:6px;border-radius:50%;background:#fff;position:absolute;top:4px;right:6px}.brand-text h1{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.brand-text span{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.nav-section-title{font-size:.65rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);padding:0 10px;margin-bottom:4px}.nav-list{list-style:none;display:flex;flex-direction:column;gap:2px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--radius-sm);font-size:.85rem;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.nav-item:hover{background:#ffffff0a;color:var(--text-primary)}.nav-item.active{background:var(--accent-glow);color:var(--accent);font-weight:500}.nav-item .nav-icon{width:18px;height:18px;display:grid;place-items:center;font-size:1rem;flex-shrink:0}.nav-item .badge{margin-left:auto;background:var(--danger);color:#fff;font-size:.65rem;font-weight:600;padding:1px 7px;border-radius:10px;line-height:1.5}.sidebar-user{margin-top:auto;display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff05}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#6384ff,#a78bfa);display:grid;place-items:center;font-size:.75rem;font-weight:700;color:#fff;flex-shrink:0}.user-info{display:flex;flex-direction:column;min-width:0}.user-info .name{font-size:.8rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-info .role{font-size:.65rem;color:var(--text-muted)}.main-content{padding:28px 32px;overflow-y:auto}.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.top-bar h2{font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.top-bar-sub{font-size:.85rem;color:var(--text-secondary);margin-top:2px;font-weight:400}.top-bar-actions{display:flex;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:500;border:none;cursor:pointer;transition:all .15s ease;font-family:inherit}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:#5270e6;box-shadow:0 0 20px var(--accent-glow)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover{background:#ffffff0a;color:var(--text-primary)}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:all .2s ease}.stat-card:hover{border-color:var(--border-accent);background:var(--bg-card-hover)}.stat-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.stat-icon{width:36px;height:36px;border-radius:var(--radius-sm);display:grid;place-items:center;font-size:1.1rem}.stat-icon.accent{background:var(--accent-glow)}.stat-icon.success{background:var(--success-glow)}.stat-icon.warning{background:var(--warning-glow)}.stat-icon.purple{background:var(--purple-glow)}.stat-label{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}.stat-value{font-size:1.8rem;font-weight:700;letter-spacing:-.03em;line-height:1.1}.stat-change{font-size:.72rem;margin-top:4px;display:flex;align-items:center;gap:3px}.stat-change.up{color:var(--success)}.stat-change.down{color:var(--danger)}.dashboard-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:border-color .2s ease}.card:hover{border-color:#ffffff17}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.card-title{font-size:.95rem;font-weight:600;display:flex;align-items:center;gap:8px}.card-title .count{font-size:.65rem;background:#ffffff14;color:var(--text-secondary);padding:2px 8px;border-radius:10px;font-weight:500}.card-link{font-size:.75rem;color:var(--accent);cursor:pointer;background:none;border:none;font-family:inherit}.card-link:hover{text-decoration:underline}.assignment-list{display:flex;flex-direction:column;gap:10px}.assignment-item{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff04;transition:all .15s ease;cursor:pointer}.assignment-item:hover{background:#ffffff09;border-color:#ffffff1a}.assignment-priority{width:4px;height:36px;border-radius:2px;flex-shrink:0}.assignment-priority.high{background:var(--danger)}.assignment-priority.medium{background:var(--warning)}.assignment-priority.low{background:var(--success)}.assignment-body{flex:1;min-width:0}.assignment-name{font-size:.85rem;font-weight:500;margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.assignment-meta{font-size:.72rem;color:var(--text-muted);display:flex;align-items:center;gap:10px}.assignment-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-muted)}.assignment-status{font-size:.68rem;font-weight:600;padding:4px 10px;border-radius:20px;white-space:nowrap;text-transform:capitalize}.assignment-status.pending{background:var(--warning-glow);color:var(--warning)}.assignment-status.in-progress{background:var(--accent-glow);color:var(--accent)}.assignment-status.completed{background:var(--success-glow);color:var(--success)}.assignment-status.overdue{background:var(--danger-glow);color:var(--danger)}.schedule-grid{display:flex;flex-direction:column;gap:10px}.schedule-day{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff04;transition:all .15s ease}.schedule-day:hover{background:#ffffff09}.schedule-day.today{border-color:var(--border-accent);background:var(--accent-glow)}.day-label{width:44px;text-align:center;flex-shrink:0}.day-label .day-name{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.day-label .day-num{font-size:1.1rem;font-weight:700;line-height:1.2}.schedule-day.today .day-label .day-num{color:var(--accent)}.schedule-events{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.schedule-event{display:flex;align-items:center;gap:8px;font-size:.8rem}.schedule-event .time{color:var(--text-muted);font-size:.72rem;width:52px;flex-shrink:0}.schedule-event .event-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.event-dot{width:6px;height:6px;border-radius:50%;flex-shrink:0}.progress-section{display:flex;flex-direction:column;align-items:center;gap:20px;padding-top:8px}.progress-ring-wrap{position:relative;width:140px;height:140px}.progress-ring{transform:rotate(-90deg)}.progress-ring-bg{fill:none;stroke:#ffffff0f;stroke-width:10}.progress-ring-fill{fill:none;stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset 1s ease}.progress-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.progress-pct{font-size:1.8rem;font-weight:700;letter-spacing:-.03em}.progress-label{font-size:.7rem;color:var(--text-muted)}.progress-bars{width:100%;display:flex;flex-direction:column;gap:12px}.progress-bar-row{display:flex;flex-direction:column;gap:6px}.progress-bar-header{display:flex;justify-content:space-between;font-size:.75rem}.progress-bar-header .label{color:var(--text-secondary)}.progress-bar-header .value{color:var(--text-primary);font-weight:600}.progress-track{height:6px;border-radius:3px;background:#ffffff0f;overflow:hidden}.progress-fill{height:100%;border-radius:3px;transition:width 1s ease}.reminders-list{display:flex;flex-direction:column;gap:8px}.reminder-item{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff04;transition:all .15s ease}.reminder-item:hover{background:#ffffff09}.reminder-checkbox{width:18px;height:18px;border-radius:50%;border:2px solid var(--text-muted);flex-shrink:0;margin-top:1px;cursor:pointer;transition:all .15s ease;display:grid;place-items:center;background:none}.reminder-checkbox:hover{border-color:var(--accent)}.reminder-checkbox.checked{background:var(--accent);border-color:var(--accent)}.reminder-checkbox.checked:after{content:"";width:6px;height:6px;background:#fff;border-radius:50%}.reminder-text{flex:1;font-size:.82rem;line-height:1.4}.reminder-text.done{text-decoration:line-through;color:var(--text-muted)}.reminder-time{font-size:.68rem;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.quick-add{display:flex;gap:8px;margin-top:4px}.quick-add input{flex:1;background:#ffffff0a;border:1px solid var(--border);border-radius:var(--radius-xs);padding:8px 12px;font-size:.8rem;color:var(--text-primary);font-family:inherit;outline:none;transition:border-color .15s ease}.quick-add input::placeholder{color:var(--text-muted)}.quick-add input:focus{border-color:var(--accent)}.quick-add button{padding:8px 14px;border-radius:var(--radius-xs);background:var(--accent);color:#fff;border:none;font-size:.8rem;font-weight:500;cursor:pointer;font-family:inherit;transition:all .15s ease}.quick-add button:hover{background:#5270e6}.bottom-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.weekly-chart{display:flex;align-items:flex-end;gap:12px;height:130px;padding-top:10px}.chart-bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;height:100%}.chart-bar-track{flex:1;width:100%;background:#ffffff0a;border-radius:6px;display:flex;align-items:flex-end;overflow:hidden}.chart-bar{width:100%;border-radius:6px 6px 0 0;transition:height 1s ease}.chart-bar-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase}.deadline-list{display:flex;flex-direction:column;gap:10px}.deadline-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff04}.deadline-date{width:46px;height:46px;border-radius:var(--radius-sm);display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0}.deadline-date .month{font-size:.6rem;text-transform:uppercase;letter-spacing:.05em;font-weight:600}.deadline-date .day{font-size:1.1rem;font-weight:700;line-height:1.1}.deadline-date.urgent{background:var(--danger-glow);color:var(--danger)}.deadline-date.soon{background:var(--warning-glow);color:var(--warning)}.deadline-date.normal{background:var(--accent-glow);color:var(--accent)}.deadline-body{flex:1;min-width:0}.deadline-title{font-size:.82rem;font-weight:500}.deadline-course{font-size:.7rem;color:var(--text-muted)}.deadline-countdown{font-size:.7rem;font-weight:600;white-space:nowrap}.deadline-countdown.urgent{color:var(--danger)}.deadline-countdown.soon{color:var(--warning)}.deadline-countdown.normal{color:var(--text-secondary)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:480px;padding:24px;box-shadow:0 24px 48px #0006}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h3{font-size:1.1rem;font-weight:600}.modal-close{background:none;border:none;color:var(--text-muted);font-size:1.4rem;cursor:pointer;line-height:1;padding:4px}.modal-close:hover{color:var(--text-primary)}.modal-form{display:flex;flex-direction:column;gap:14px}.modal-form label{display:flex;flex-direction:column;gap:5px}.modal-form label span{font-size:.75rem;color:var(--text-secondary);font-weight:500}.modal-form input,.modal-form select{background:#ffffff0a;border:1px solid var(--border);border-radius:var(--radius-xs);padding:9px 12px;font-size:.85rem;color:var(--text-primary);font-family:inherit;outline:none;transition:border-color .15s ease}.modal-form input:focus,.modal-form select:focus{border-color:var(--accent)}.modal-form select{cursor:pointer}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.view-content{max-width:900px}.view-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.view-header h2{font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.filter-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:12px;flex-wrap:wrap}.filter-group{display:flex;gap:4px}.filter-btn{background:transparent;border:1px solid var(--border);color:var(--text-secondary);font-size:.78rem;font-family:inherit;padding:6px 14px;border-radius:20px;cursor:pointer;transition:all .15s ease;display:flex;align-items:center;gap:6px}.filter-btn:hover{background:#ffffff0a;color:var(--text-primary)}.filter-btn.active{background:var(--accent-glow);border-color:var(--border-accent);color:var(--accent)}.filter-count{font-size:.65rem;background:#ffffff14;padding:1px 6px;border-radius:10px}.course-filter{background:#ffffff0a;border:1px solid var(--border);border-radius:var(--radius-xs);padding:6px 12px;font-size:.78rem;color:var(--text-primary);font-family:inherit;outline:none;cursor:pointer}.assignment-status-select{font-size:.68rem;font-weight:600;padding:4px 8px;border-radius:20px;white-space:nowrap;border:none;cursor:pointer;font-family:inherit;outline:none;-moz-appearance:none;appearance:none;-webkit-appearance:none;text-align:center;text-align-last:center;transition:all .15s ease}.assignment-status-select.pending{background:var(--warning-glow);color:var(--warning)}.assignment-status-select.in-progress{background:var(--accent-glow);color:var(--accent)}.assignment-status-select.completed{background:var(--success-glow);color:var(--success)}.assignment-status-select.overdue{background:var(--danger-glow);color:var(--danger)}.icon-btn{width:30px;height:30px;border-radius:var(--radius-xs);border:1px solid var(--border);background:transparent;color:var(--text-secondary);font-size:.9rem;cursor:pointer;display:grid;place-items:center;transition:all .15s ease}.icon-btn:hover{background:#ffffff0f;color:var(--text-primary)}.icon-btn.danger:hover{background:var(--danger-glow);color:var(--danger);border-color:#ff6b6b4d}.icon-btn-sm{width:22px;height:22px;border-radius:50%;border:none;background:transparent;color:var(--text-muted);font-size:.85rem;cursor:pointer;display:grid;place-items:center;transition:all .15s ease;flex-shrink:0;line-height:1}.icon-btn-sm:hover{color:var(--text-primary)}.icon-btn-sm.danger:hover{color:var(--danger);background:var(--danger-glow)}.item-actions{display:flex;gap:4px;margin-left:8px}.assignment-list.full{gap:8px}.assignment-item.full{gap:12px;padding:16px}.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted);font-size:.85rem}.grades-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:20px}.grade-card{display:flex;gap:14px;padding:18px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#ffffff04}.grade-color{width:4px;border-radius:2px;flex-shrink:0}.grade-body{flex:1}.grade-course{font-size:.82rem;font-weight:500;margin-bottom:6px}.grade-value{font-size:1.6rem;font-weight:700;letter-spacing:-.02em}.grade-gpa{font-size:.7rem;color:var(--text-muted);margin-top:2px}.gpa-summary{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-radius:var(--radius-sm);border:1px solid var(--border-accent);background:var(--accent-glow);font-size:.9rem;font-weight:500}.gpa-value{font-size:1.8rem;font-weight:700;color:var(--accent)}.schedule-day.expanded{padding:16px 18px}.schedule-event.expanded{padding:4px 0}.no-events{font-size:.78rem;color:var(--text-muted);font-style:italic}.deadline-item.expanded{padding:16px}@media(max-width:1100px){.dashboard-grid,.bottom-grid{grid-template-columns:1fr}.stats-row{grid-template-columns:repeat(2,1fr)}.grades-grid{grid-template-columns:1fr}}@media(max-width:768px){.app-layout{grid-template-columns:1fr}.sidebar{display:none}.main-content{padding:20px 16px}.stats-row{grid-template-columns:1fr 1fr}.filter-bar{flex-direction:column;align-items:stretch}.filter-group{overflow-x:auto}.form-row{grid-template-columns:1fr}.assignment-item.full{flex-wrap:wrap}.item-actions{margin-left:auto}}