:root{--blue:#1565c0;--navy:#0f2e59;--gold:#ffc83d;--ink:#17263e;--muted:#65758b;--canvas:#f4f7fc;--soft:#eaf2fd;--line:#dde5f0;--green:#158463;--red:#cd4548;--radius:14px;--shadow:0 4px 18px rgba(20,50,90,.025)}
*{box-sizing:border-box}html{font-size:14px;scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:var(--blue)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #ffc83d;outline-offset:3px}.loading-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted)}.spinner{height:35px;width:35px;border:3px solid var(--line);border-top-color:var(--blue);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
h1,h2,h3,p{margin-top:0}h1{font-size:34px;line-height:1.18;letter-spacing:-.03em;color:var(--navy);margin-bottom:8px}h2{font-size:20px;line-height:1.3;color:var(--navy);margin:0}h3{font-size:16px;color:var(--navy);margin:0}p{line-height:1.5}.overline{font-size:11px;font-weight:800;letter-spacing:.105em;color:var(--blue);text-transform:uppercase;margin:0 0 9px}.muted{color:var(--muted)}.small{font-size:12px}.tiny{font-size:11px}.strong{font-weight:750}.money{font-variant-numeric:tabular-nums}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 19px;border:1px solid transparent;border-radius:9px;min-height:43px;background:var(--blue);font-weight:700;color:#fff;text-decoration:none;transition:.15s ease}.btn:hover{filter:brightness(.95);transform:translateY(-1px)}.btn-secondary{background:var(--soft);color:var(--blue)}.btn-outline{background:#fff;color:var(--blue);border-color:#bfd5ef}.btn-danger{background:#c74847}.btn-small{padding:8px 12px;min-height:34px;font-size:12px}.btn-block{width:100%}.link-btn{border:0;background:none;padding:0;color:var(--blue);font-weight:700;text-decoration:none}.link-btn:hover{text-decoration:underline}.form-label{display:block;text-transform:uppercase;font-weight:750;color:var(--muted);font-size:11px;letter-spacing:.04em;margin-bottom:8px}.field{width:100%;min-height:44px;border-radius:9px;border:1px solid var(--line);padding:11px 13px;color:var(--ink);background:#fff;outline:none;transition:border .15s}.field:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(21,101,192,.1)}.field::placeholder{color:#97a4b3}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}.form-group{margin-bottom:17px}.notice{background:#eef5ff;border:1px solid #cee3ff;color:#285781;border-radius:9px;padding:12px 14px;line-height:1.45;font-size:13px}.notice.error{color:#a83238;border-color:#f0d0ce;background:#fff1f1}.notice.success{color:var(--green);border-color:#b6e9c9;background:#eafaf1}.divider{height:1px;background:var(--line);margin:20px 0}.empty{border:1px dashed var(--line);background:#fafdff;border-radius:12px;text-align:center;padding:40px 20px;color:var(--muted)}.empty-icon{font-size:31px;margin-bottom:12px;color:#9db3cf}
/* Sign-in layout: 754px blue / 686px white, faithfully based on 1440px desktop Figma frame. */
.auth-layout{display:grid;grid-template-columns:minmax(450px,1.1fr) minmax(400px,1fr);min-height:100vh;background:#fff}.auth-hero{background:var(--blue);display:flex;flex-direction:column;justify-content:center;padding:clamp(42px,5vw,90px);color:white;min-height:760px}.auth-logo{display:flex;align-items:center;gap:14px}.auth-logo img{width:56px;height:56px}.auth-logo strong{display:block;font-size:23px;line-height:1.25}.auth-logo span{display:block;color:#d9e9ff;font-size:13px;margin-top:4px}.auth-gold-line{width:76px;height:5px;background:var(--gold);border-radius:3px;margin:32px 0}.auth-hero h1{font-size:clamp(36px,3.5vw,47px);color:white;max-width:650px;margin:0 0 20px;letter-spacing:-.035em;line-height:1.16}.auth-hero>.auth-intro{font-size:17px;color:#e7f0ff;max-width:580px;line-height:1.6}.auth-feature{margin-top:30px}.auth-feature p{margin:0 0 22px;color:#fff}.auth-feature b{display:block;color:var(--gold);font-size:12px;letter-spacing:.08em;margin-bottom:7px}.auth-footnote{margin-top:30px;font-weight:650;color:#d4e5fb;font-size:11px;letter-spacing:.09em}.auth-panel{display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,75px);max-width:740px}.auth-panel h1{font-size:32px}.auth-panel .auth-subtitle{color:var(--muted);margin:0 0 26px}.login-card{background:var(--canvas);border:1px solid var(--line);border-radius:15px;padding:25px}.login-help{margin-top:24px;color:var(--muted);font-size:13px}.login-links{display:flex;gap:16px;margin-top:10px;font-weight:650;font-size:13px}.mobile-logo{display:none}
/* Main app layout */
.portal{display:flex;min-height:100vh}.sidebar{width:245px;flex:none;background:#fff;border-right:1px solid var(--line);min-height:100vh;padding:27px 20px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;margin-bottom:42px}.brand img{width:38px;height:38px}.brand h2{font-size:22px;margin:0}.brand small{display:block;font-size:9px;letter-spacing:.09em;font-weight:750;color:var(--blue);margin-top:3px}.nav-label{color:#9aa8b9;font-size:10px;font-weight:800;letter-spacing:.13em;margin-bottom:17px}.nav-list{display:grid;gap:16px}.nav-link{display:flex;align-items:center;gap:13px;color:#58718f;text-decoration:none;padding:15px 16px;font-weight:700;border-radius:11px;min-height:52px;transition:.15s}.nav-link svg{flex:none}.nav-link:hover{background:#f5f9ff}.nav-link.active{color:var(--blue);background:var(--soft)}.sidebar-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}.mini-profile{display:flex;gap:9px;align-items:center}.avatar-sm,.avatar-lg{display:flex;align-items:center;justify-content:center;background:#dcebfb;color:var(--blue);border-radius:50%;font-weight:800;overflow:hidden;flex:none}.avatar-sm{width:39px;height:39px}.avatar-sm img,.avatar-lg img{width:100%;height:100%;object-fit:cover}.mini-profile b{font-size:12px}.mini-profile small{display:block;font-size:10px;color:var(--muted);max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.signout{display:flex;align-items:center;gap:8px;border:0;background:none;color:var(--muted);font-weight:700;padding:20px 0}.signout:hover{color:var(--red)}.portal-body{flex:1;min-width:0}.topbar{background:#fff;min-height:85px;border-bottom:1px solid var(--line);padding:22px 25px;display:flex;justify-content:space-between;align-items:center;gap:15px}.topbar .crumb{font-size:10px;font-weight:700;letter-spacing:.07em;color:var(--muted)}.topbar h2{font-size:21px;margin-top:3px}.term-pill{border-radius:30px;border:1px solid var(--line);color:var(--muted);padding:10px 13px;font-size:12px;white-space:nowrap;background:#fff}.page{max-width:1260px;margin:0 auto;padding:32px;min-height:calc(100vh - 85px)}.page-header{margin-bottom:23px}.page-header h1{margin-bottom:6px}.page-header p:last-child{color:var(--muted);font-size:13px;max-width:900px;margin:0}.card{border:1px solid var(--line);border-radius:14px;background:#fff;padding:25px;box-shadow:var(--shadow)}.card+.card{margin-top:22px}.card-header{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:19px}.identity{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px;border-radius:14px;background:linear-gradient(105deg,#e5f0fe,#f4f8ff);border:1px solid #d4e6fb;margin-bottom:22px}.identity-main{display:flex;gap:20px;align-items:center}.avatar-lg{width:72px;height:72px;font-size:25px}.identity h2{font-size:24px;letter-spacing:-.02em;margin-bottom:6px}.identity p{margin:0 0 4px;font-size:13px;color:var(--muted)}.identity .student-code{font-size:12px;font-weight:700;color:var(--blue)}.detail-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 12px}.detail-item{border:1px solid var(--line);border-radius:9px;background:#fbfdff;padding:15px;min-height:65px}.detail-item.span-2{grid-column:span 2}.detail-item.span-4{grid-column:span 4}.detail-item label{display:block;color:var(--muted);font-weight:800;font-size:10px;letter-spacing:.04em;margin-bottom:7px}.detail-item strong{display:block;font-size:13px;overflow-wrap:anywhere;line-height:1.4}.home-actions{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:22px 0}.home-actions .card{margin:0}.home-actions .card>p{color:var(--muted);font-size:13px;margin:10px 0 20px}.upload-zone{display:block;border:1px dashed #b6cce7;border-radius:9px;background:#f8fbff;padding:18px;color:var(--blue);cursor:pointer;margin-bottom:15px}.upload-zone input{max-width:100%;font-size:12px}.upload-zone span{display:block;font-size:12px;color:var(--muted);margin-top:7px}.quick-links{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.quick-card{border:1px solid var(--line);border-radius:13px;background:#fff;text-align:left;padding:20px;min-height:130px;color:var(--navy);text-decoration:none;transition:.15s}.quick-card:hover{border-color:#b5d4f6;transform:translateY(-2px)}.quick-card .arrow{color:var(--blue);font-size:24px;display:block;margin-bottom:12px}.quick-card strong{display:block;font-size:16px;margin-bottom:8px}.quick-card span:last-child{color:var(--muted);font-size:12px}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-bottom:22px}.metric{min-height:147px}.metric label{font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.04em}.metric strong{display:block;font-size:34px;letter-spacing:-.03em;color:var(--navy);margin:12px 0 4px}.metric small{font-size:12px;color:var(--muted)}.table-wrap{max-width:100%;overflow-x:auto}.data-table{width:100%;border-collapse:collapse;text-align:left;font-size:12px;min-width:700px}.data-table th{color:var(--muted);background:#f4f7fc;font-size:10px;letter-spacing:.055em;padding:14px 12px;text-transform:uppercase;white-space:nowrap}.data-table td{padding:16px 12px;border-bottom:1px solid #edf1f6;vertical-align:middle}.data-table tr:last-child td{border-bottom:0}.data-table b{color:var(--navy)}.total-bar{display:flex;justify-content:flex-end;color:var(--navy);font-weight:800;border-top:1px solid var(--line);padding-top:20px;margin-top:8px}.select-term{min-height:38px;min-width:180px;max-width:270px;border:1px solid var(--line);padding:7px 11px;border-radius:9px;background:#fff;color:var(--navy);font-weight:700;font-size:12px}.schedule-mobile{display:none}.badge-grade{display:inline-flex;min-width:60px;justify-content:center;border-radius:30px;padding:8px 12px;background:#e7f7ee;color:var(--green);font-weight:800;font-size:12px}.badge-grade.inc{background:#fff3d5;color:#b56b1c}.badge-grade.fail{background:#fff0ee;color:var(--red)}.history-item{margin-top:12px;border:1px solid var(--line);border-radius:10px;overflow:hidden}.history-item summary{padding:15px 17px;background:#f9fbfe;font-weight:750;color:var(--navy);cursor:pointer;display:flex;align-items:center;justify-content:space-between}.history-item summary::-webkit-details-marker{display:none}.history-item summary:after{content:'⌄';font-size:21px;color:var(--blue)}.history-item[open] summary:after{content:'⌃'}.history-item .table-wrap{padding:10px}.grade-toggle{display:flex;gap:13px;align-items:center;font-size:13px;color:var(--muted);font-weight:700;cursor:pointer}.grade-toggle input{appearance:none;width:42px;height:24px;border-radius:20px;background:#a1b0c2;position:relative;cursor:pointer;transition:.15s}.grade-toggle input:before{content:'';position:absolute;background:#fff;width:18px;height:18px;border-radius:50%;top:3px;left:3px;transition:.15s}.grade-toggle input:checked{background:var(--blue)}.grade-toggle input:checked:before{left:21px}.grade-ref{width:100%;border-collapse:collapse;font-size:12px}.grade-ref th{background:#f4f7fc;color:var(--muted);padding:12px;text-align:left}.grade-ref td{padding:10px 12px;border-bottom:1px solid var(--line)}.assessment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.assessment-item{background:#f7faff;border:1px solid var(--line);border-radius:10px;padding:16px}.assessment-item span{display:block;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.06em;margin-bottom:9px}.assessment-item strong{font-size:19px;color:var(--navy)}.mobile-nav{display:none}.mobile-topbar{display:none}
/* Dialog and toast */
.modal-layer{position:fixed;inset:0;background:rgba(8,27,53,.54);z-index:100;display:flex;justify-content:center;align-items:center;padding:20px}.modal{width:min(100%,584px);max-height:min(90vh,720px);overflow-y:auto;background:#fff;border-radius:15px;box-shadow:0 25px 80px rgba(0,0,0,.18);padding:27px}.modal h2{font-size:22px;margin-bottom:18px}.modal-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.modal-actions>*{min-width:130px}#toast{position:fixed;right:22px;bottom:22px;z-index:200;max-width:390px}#toast .notice{box-shadow:0 14px 50px rgba(20,47,85,.15);background:white;border-width:2px}.action-status{margin-bottom:15px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.admin-grid .card{margin:0}.admin-grid .card h2{margin-bottom:16px}.admin-grid .card .form-group:last-child{margin-bottom:0}.admin-grid .full{grid-column:1/-1}.admin-list{width:100%;overflow-x:auto}.hint{color:var(--muted);font-size:12px;margin-top:8px}.readonly-note{font-size:11px;color:#a36b00;background:#fff6d9;border:1px solid #ffe6a1;border-radius:8px;padding:9px 11px;margin-top:12px}
@media(max-width:1100px){.auth-layout{grid-template-columns:1fr 1fr}.auth-hero{padding:38px;min-height:700px}.auth-panel{padding:38px}.page{padding:24px}.metrics{gap:14px}.home-actions,.quick-links{gap:14px}.card{padding:20px}.detail-grid{grid-template-columns:repeat(2,1fr)}.detail-item.span-4{grid-column:span 2}.identity{padding:20px}.identity h2{font-size:21px}}
@media(max-width:850px){.sidebar{width:210px;padding:25px 12px}.nav-link{padding:13px}.brand{padding-left:6px}.page{padding:22px}.home-actions{grid-template-columns:1fr}.detail-grid{grid-template-columns:repeat(2,1fr)}.identity{gap:10px}.identity-main{gap:12px}.auth-hero{padding:28px}.auth-panel{padding:28px}.auth-hero h1{font-size:34px}.auth-feature p{font-size:13px}.admin-grid{grid-template-columns:1fr}}
@media(max-width:650px){body{background:var(--canvas)}h1{font-size:26px}.auth-layout{display:block;min-height:100vh}.auth-hero{display:none}.mobile-logo{display:flex;align-items:center;gap:10px;background:var(--blue);color:white;margin:-24px -20px 33px;padding:21px 20px}.mobile-logo img{width:35px;height:35px}.mobile-logo strong{font-size:17px}.auth-panel{min-height:100vh;max-width:none;padding:24px 20px;display:block}.auth-panel h1{font-size:27px}.login-card{padding:22px}.portal{display:block}.sidebar{display:none}.topbar{display:none}.mobile-topbar{display:flex;justify-content:space-between;align-items:center;min-height:71px;background:#fff;padding:17px 19px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.mobile-topbar img{width:34px;height:34px}.mobile-topbar strong{font-size:17px;color:var(--navy)}.mobile-topbar .right{font-size:12px;color:var(--blue);font-weight:750}.page{padding:24px 17px 115px;min-height:calc(100vh - 149px)}.page-header h1{font-size:25px}.card{padding:18px;margin-bottom:16px}.card+.card{margin-top:16px}.card-header{align-items:flex-start;flex-wrap:wrap}.identity{padding:18px;display:block}.identity-main{align-items:flex-start}.avatar-lg{width:60px;height:60px;font-size:22px}.identity h2{font-size:18px}.identity .btn{margin-top:16px;width:100%}.detail-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.detail-item{padding:12px;min-height:64px}.detail-item.span-2,.detail-item.span-4{grid-column:span 2}.detail-item strong{font-size:12px}.home-actions{display:block;margin:0 0 15px}.home-actions .card{margin:0 0 16px}.form-row{grid-template-columns:1fr}.quick-links{grid-template-columns:1fr;gap:10px}.quick-card{min-height:auto;padding:16px}.quick-card .arrow{display:none}.quick-card strong{margin-bottom:3px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:17px}.metrics .metric:last-child{grid-column:1/-1}.metric{min-height:105px}.metric strong{font-size:27px;margin:10px 0 3px}.metric label{font-size:10px}.metric small{font-size:11px}.schedule-desktop{display:none}.schedule-mobile{display:block}.course-mobile{border:1px solid var(--line);border-radius:12px;padding:17px;margin-top:12px;background:#fff}.course-mobile h3{margin-bottom:6px}.course-mobile .code{font-size:11px;font-weight:800;color:var(--blue);margin-bottom:7px}.course-meta{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:12px}.course-meta label{display:block;font-size:10px;color:var(--muted);font-weight:800;margin-bottom:4px}.course-meta strong{font-size:12px}.schedule-mobile{margin-bottom:22px}.table-wrap .data-table{min-width:650px}.grades-list-mobile .course-mobile{margin-bottom:12px}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;min-height:78px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);z-index:25;box-shadow:0 -5px 14px rgba(10,44,82,.05)}.mobile-nav a{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;text-decoration:none;color:#788ba4;font-size:10px;font-weight:700}.mobile-nav a.active{color:var(--blue)}.mobile-nav svg{width:21px;height:21px}.term-pill{display:none}.select-term{max-width:100%;width:100%}.grade-toggle{font-size:12px}.assessment-grid{grid-template-columns:1fr}.assessment-item strong{font-size:20px}.modal{padding:22px}.modal-actions>*{min-width:0;flex:1}#toast{left:15px;right:15px;bottom:95px}.admin-grid{display:block}.admin-grid .card{margin:0 0 15px}.admin-grid .full{grid-column:auto}}
@media(max-width:380px){.page{padding:20px 12px 115px}.identity-main{gap:8px}.identity h2{font-size:16px}.card{padding:15px}.detail-grid{gap:8px}}

/* Visually integrated, still-accessible profile file picker. */
.upload-zone{position:relative;overflow:hidden;padding:23px 18px;text-align:center;font-weight:700}.upload-zone input[type=file]{position:absolute;inset:0;width:100%;height:100%;cursor:pointer;opacity:0}.upload-zone:focus-within,.upload-zone.drag-over{outline:2px solid var(--blue);outline-offset:2px;background:#eaf2fd}.upload-zone span{font-weight:500}.admin-mobile-nav{grid-template-columns:1fr;min-height:68px}
.form-group{display:block}

/* Static demo additions: preserve original portal blue/navy/gold visual language. */
.login-demo-row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:1px 0 18px;color:var(--muted);font-size:11px;font-weight:600}
.login-demo-tag{display:inline-flex;align-items:center;border-radius:6px;background:#e5f0fc;color:var(--blue);padding:6px 9px;font-weight:800;letter-spacing:.08em;font-size:10px}
.demo-notice{display:flex;align-items:center;gap:13px;border:1px solid #cbdaf0;background:#f0f6ff;padding:12px 16px;border-radius:10px;margin:-3px 0 22px;font-size:12px;line-height:1.5;color:#527298}
.demo-notice strong{color:var(--navy);white-space:nowrap}
.grades-tools{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;background:#f8fbff;border:1px solid var(--line);padding:12px 14px;border-radius:10px;margin-bottom:17px}
.grades-table-desktop{display:block}.grades-list-mobile{display:none}.grades-list-mobile .course-mobile{margin-bottom:12px}
.grade-table-footer{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:18px 4px 0;border-top:1px solid var(--line);margin-top:10px;font-size:12px;color:var(--muted)}
.grade-table-footer strong{color:var(--navy)}
.history-count{margin-left:auto;margin-right:15px;white-space:nowrap}
.grade-instructor{min-width:0}.grade-course-card .grade-instructor strong{overflow-wrap:anywhere}
.auth-panel .login-card .btn svg{flex:none}
@media(max-width:650px){
 .demo-notice{align-items:flex-start;flex-direction:column;gap:4px;font-size:11px;padding:12px}
 .grades-tools{align-items:stretch;gap:13px}
 .grades-tools .btn{width:100%}
 .grades-table-desktop{display:none}
 .grades-list-mobile{display:block}
 .grade-course-card .course-meta{grid-template-columns:repeat(2,minmax(0,1fr))}
 .history-item>.grades-list-mobile{padding:10px}
 .history-item summary{gap:7px;padding:15px 12px;font-size:12px}
 .history-count{margin-right:4px;font-size:10px}
 .grade-table-footer{padding-top:14px}
 .auth-panel .mobile-logo{margin-bottom:38px}
}
@media print{
 body{background:white !important;color:#111}
 .sidebar,.mobile-nav,.mobile-topbar,.topbar,.demo-notice,.grades-tools,.signout,#toast,.grade-ref,.grade-main-card+.card+.card{display:none !important}
 .portal-body,.portal{display:block !important;min-height:0}
 .page{padding:12px;max-width:none}
 .card{break-inside:avoid;box-shadow:none;border-color:#ccc}
 .grades-table-desktop{display:block !important}.grades-list-mobile{display:none !important}
 .history-item{break-inside:avoid}
}
@media(max-width:650px){.grade-ref{min-width:540px}}