:root{--navy:#022f50;--blue:#0757c9;--ink:#101828;--muted:#667085;--line:#dfe7f1;--surface:#fff;--bg:#f5f8fc;--danger:#b42318;--success:#087a55;color:var(--ink);background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button,a{transition:all .18s}a{color:inherit}.skip-link{color:var(--navy);z-index:100;background:#fff;border-radius:8px;padding:10px 14px;position:fixed;top:-60px;left:12px}.skip-link:focus{top:12px}.brand{align-items:center;gap:10px;font-weight:800;text-decoration:none;display:flex}.brand-mark{background:var(--blue);color:#fff;border-radius:9px;place-items:center;width:38px;height:38px;display:grid}.public-header{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;height:72px;padding:0 max(20px,5vw);display:flex}.public-header small{color:var(--muted)}.auth-page,.setup-page,.status-page{place-items:center;min-height:calc(100vh - 72px);padding:30px;display:grid}.auth-card,.setup-card,.status-card{border:1px solid var(--line);background:#fff;border-radius:16px;width:min(450px,100%);padding:32px;box-shadow:0 18px 45px #022f5014}.auth-card h1,.setup-card h1{margin:0 0 8px;font-size:27px}.auth-card>p,.setup-card>p{color:var(--muted);font-size:14px;line-height:1.55}.form-field{flex-direction:column;gap:7px;margin-top:16px;font-size:12px;font-weight:700;display:flex}.form-field input{border:1px solid #cad7e5;border-radius:9px;outline:none;height:46px;padding:0 12px}.form-field input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #e5f0ff}.primary-button{background:var(--blue);color:#fff;border:0;border-radius:9px;width:100%;height:46px;margin-top:22px;font-weight:800}.primary-button:hover{background:#0648a6}.primary-button:focus-visible,.nav-button:focus-visible,a:focus-visible{outline-offset:2px;outline:3px solid #8bc0ff}.form-error{color:var(--danger);background:#fff0ef;border-radius:8px;margin-top:14px;padding:10px;font-size:12px}.form-note{color:var(--muted);text-align:center;margin-top:16px;font-size:11px}.setup-list{color:#405366;padding-left:20px;font-size:13px;line-height:1.8}.app-layout{grid-template-columns:230px 1fr;min-height:100vh;display:grid}.app-nav{background:var(--navy);color:#fff;flex-direction:column;padding:24px 17px;display:flex}.app-nav .brand{margin-bottom:28px}.app-nav .brand-mark{background:#ffffff1f}.nav-context{border-top:1px solid #25536f;border-bottom:1px solid #25536f;margin:0 -17px 18px;padding:16px 20px}.nav-context span,.nav-context strong{display:block}.nav-context span{color:#a8c1d3;letter-spacing:.08em;font-size:9px}.nav-context strong{margin-top:5px;font-size:12px}.nav-links{flex-direction:column;gap:4px;display:flex}.nav-links a{color:#d8e6f0;border-radius:8px;padding:10px 11px;font-size:12px;text-decoration:none}.nav-links a[aria-current=page],.nav-links a:hover{background:var(--blue);color:#fff}.nav-footer{margin-top:auto}.nav-button{color:#b8ccda;text-align:left;background:0 0;border:0;width:100%;padding:10px;font-size:11px}.app-main{min-width:0}.app-topbar{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;height:72px;padding:0 28px;display:flex}.app-topbar h1{margin:0;font-size:17px}.app-topbar p{color:var(--muted);margin:3px 0 0;font-size:10px}.role-badge{color:#0757c9;background:#eaf3ff;border-radius:99px;padding:6px 9px;font-size:10px;font-weight:800}.content{max-width:1250px;margin:auto;padding:30px}.page-heading{justify-content:space-between;align-items:end;margin-bottom:24px;display:flex}.page-heading h2{margin:0 0 5px;font-size:28px}.page-heading p{color:var(--muted);margin:0;font-size:13px}.empty-state{text-align:center;background:#fff;border:1px dashed #bfcddd;border-radius:14px;padding:55px 25px}.empty-state strong{margin-bottom:6px;font-size:18px;display:block}.empty-state p{color:var(--muted);max-width:500px;margin:0 auto;font-size:12px}.cards{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.data-card{border:1px solid var(--line);background:#fff;border-radius:11px;padding:18px}.data-card span,.data-card strong{display:block}.data-card span{color:var(--muted);font-size:10px}.data-card strong{margin-top:8px;font-size:21px}.privacy-note{color:#36536e;background:#f2f7fd;border:1px solid #cfe0f1;border-radius:10px;margin-top:20px;padding:12px;font-size:11px}@media (max-width:760px){.app-layout{display:block}.app-nav{display:none}.app-topbar{padding:0 18px}.content{padding:22px 16px}.cards{grid-template-columns:1fr}.page-heading{align-items:flex-start}.public-header small{display:none}}
.live-label{color:var(--success);background:#e9f8f2;border-radius:99px;padding:7px 10px;font-size:10px;font-weight:800}.metric-grid{grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:18px;display:grid}.metric-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:17px}.metric-card span,.metric-card strong,.metric-card small{display:block}.metric-card span{color:var(--muted);font-size:10px;font-weight:700}.metric-card strong{color:var(--navy);margin:7px 0 2px;font-size:27px}.metric-card small{color:var(--muted);font-size:9px}.metric-card.attention{border-top:3px solid #f79009}.table-card{border:1px solid var(--line);background:#fff;border-radius:13px;overflow:hidden}.table-header{border-bottom:1px solid var(--line);padding:18px 20px}.table-header h3{margin:0 0 3px;font-size:14px}.table-header 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small{color:var(--muted);text-transform:uppercase;margin-top:2px;font-size:7px;display:block}.student-table{min-width:760px}.student-actions{border:1px solid var(--line);background:#f8fafc;border-radius:8px;min-width:230px;margin-top:8px;padding:10px}.student-actions .danger-zone{margin-top:9px}@media (max-width:1100px){.admin-workspace{grid-template-columns:1fr}.admin-side-column{grid-template-columns:1fr 1fr;position:static}.admin-metrics{grid-template-columns:repeat(2,1fr)}}@media (max-width:900px){.teacher-management-grid{grid-template-columns:1fr}.group-card-header{align-items:flex-start;gap:14px}.group-summary{flex-wrap:wrap}}@media (max-width:760px){.admin-hero,.teacher-hero{align-items:flex-start;gap:18px}.security-state{display:none}.admin-metrics{grid-template-columns:1fr 1fr}.admin-side-column{grid-template-columns:1fr}.directory-toolbar{flex-direction:column;align-items:stretch}.user-filters{grid-template-columns:1fr;display:grid}.user-filters 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p{color:#405366;margin:0;font-size:10px}.archive-card small{color:var(--muted);margin-top:6px;font-size:9px;display:block}@media (max-width:1100px){.admin-metrics{grid-template-columns:repeat(3,1fr)}}@media (max-width:760px){.admin-metrics{grid-template-columns:1fr 1fr}.archive-grid{grid-template-columns:1fr}.group-operations,.archive-card{flex-direction:column;align-items:flex-start}}