:root{--ink:#172033;--muted:#748096;--line:#e7ebf1;--canvas:#f5f7fb;--blue:#315be8;--nav:#17223b}*{box-sizing:border-box}body{background:var(--canvas);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:14px}.app-nav{background:var(--nav);min-height:68px;box-shadow:0 2px 12px #14203a18}.navbar-brand{letter-spacing:-.3px}.brand-mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:#fff;color:var(--nav);margin-right:8px;font-weight:800}.nav-link{color:#c9d1e2!important}.nav-link:hover{color:#fff!important}.page-wrap{min-height:calc(100vh - 120px)}.eyebrow{font-size:10px;letter-spacing:1.6px;font-weight:800;color:var(--blue);margin-bottom:8px}.page-title{font-size:clamp(25px,3vw,34px);letter-spacing:-1.1px;font-weight:750;margin:0 0 8px}.btn{border-radius:9px;font-weight:600;padding:.58rem .95rem}.btn-primary{background:var(--blue);border-color:var(--blue)}.btn-primary:hover{background:#254bd1;border-color:#254bd1}.stat-card,.panel{background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:0 3px 12px #18274605}.stat-card{padding:22px 24px;position:relative;overflow:hidden;min-height:142px}.stat-label{font-size:13px;color:var(--muted);font-weight:600}.stat-number{font-size:35px;letter-spacing:-1.3px;font-weight:750;line-height:1.35;margin-top:7px}.stat-foot{font-size:12px;color:#9aa3b3;margin-top:4px}.stat-icon{position:absolute;right:22px;top:24px;width:39px;height:39px;border-radius:12px;display:grid;place-items:center;background:#eaf0ff;color:var(--blue);font-size:21px}.stat-icon.orange{background:#fff2e5;color:#db8123}.stat-icon.green{background:#e7f8ef;color:#168b55}.panel{overflow:hidden}.panel-head{padding:20px 23px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.section-title{font-size:15px;font-weight:750;margin:0}.table{--bs-table-bg:transparent}.table thead th{font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:#8c96a8;background:#fafbfd;border-bottom:1px solid var(--line);padding:13px 20px;white-space:nowrap}.table tbody td{padding:15px 20px;border-color:#f0f2f6;font-size:13px}.table tbody tr:last-child td{border-bottom:0}.ticket-link{font-weight:700;text-decoration:none;color:var(--blue);white-space:nowrap}.ticket-link:hover{text-decoration:underline}.status-pill{display:inline-block;border-radius:100px;padding:5px 10px;font-size:11px;font-weight:700;background:#edf1f7;color:#536077;white-space:nowrap}.status-large{padding:8px 13px;font-size:12px}.empty-state{text-align:center;padding:58px 20px}.empty-symbol{margin:0 auto 14px;display:grid;place-items:center;width:54px;height:54px;border-radius:16px;background:#edf1ff;color:var(--blue);font-size:25px}.empty-state h3,.empty-state h1{font-size:19px;font-weight:750}.empty-state p{color:var(--muted);margin-bottom:20px}.filter-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.filter-bar .input-group{flex:1 1 330px;max-width:600px}.filter-bar .form-select{max-width:210px}.input-group-text,.form-control,.form-select{border-color:#dfe4ed;border-radius:9px}.input-group .input-group-text{border-radius:9px 0 0 9px;background:#fff;color:#8994a6}.input-group .form-control{border-radius:0 9px 9px 0}.form-control:focus,.form-select:focus{border-color:#9bb0ff;box-shadow:0 0 0 .2rem #315be81a}.form-panel{padding:27px}.form-label{font-weight:650;font-size:12px;color:#3b465a}.form-text{color:#929bad}.back-link{color:#647089;text-decoration:none;font-weight:600}.back-link:hover{color:var(--blue)}.ticket-description{padding:23px;white-space:pre-wrap;line-height:1.7;color:#465167}.ticket-meta{display:flex;flex-wrap:wrap;gap:15px;padding:14px 23px;border-top:1px solid var(--line);background:#fbfcfe;color:#68748a;font-size:12px}.ticket-meta b{color:#354057;margin-right:5px}.activity-compose{padding:20px 23px;border-bottom:1px solid var(--line)}.timeline{padding:6px 23px 18px}.timeline-item{display:flex;gap:14px;padding:17px 0;position:relative}.timeline-item:not(:last-child):after{content:"";position:absolute;left:5px;top:29px;bottom:-10px;width:1px;background:#dfe5f1}.timeline-dot{width:11px;height:11px;flex:0 0 11px;border-radius:50%;background:var(--blue);border:3px solid #e7edff;margin-top:3px;z-index:1}.timeline-content{flex:1;min-width:0;line-height:1.55;white-space:pre-wrap}.empty-inline{padding:22px;color:#8a95a8;text-align:center;font-size:13px}.upload-row{display:flex;gap:10px;padding:18px 23px;border-bottom:1px solid var(--line)}.upload-row input{min-width:0}.file-list{padding:0 23px}.file-row{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid #eff1f5}.file-row:last-child{border-bottom:0}.file-row a:not(.btn){color:#27344c;text-decoration:none}.file-row a:not(.btn):hover{color:var(--blue)}.file-icon{width:37px;height:37px;display:grid;place-items:center;background:#eef2ff;color:var(--blue);border-radius:10px;font-size:20px}.assignment-history{padding:0 18px 16px}.flash-stack{max-width:900px;margin-left:auto}.alert{border-radius:10px}.navbar-toggler{border-color:#647089}.navbar-toggler:focus{box-shadow:none}@media(max-width:575px){.stat-card{padding:18px}.panel-head{padding:17px}.table thead th,.table tbody td{padding:12px}.form-panel{padding:19px}.upload-row{flex-direction:column}.filter-bar .form-select{max-width:none;flex:1 1 100%}}