:root{--brew-ink:#1f2937;--brew-coffee:#6f4e37;--brew-accent:#2563eb;--brew-bg:#f5f6f8;--brew-surface:#fff;--brew-border:#e3e6ea;--brew-muted:#6b7280;--c-corrections:#16a34a;--c-corrections-bg:#e8f8ee;--c-current:#eab308;--c-current-bg:#fef9e7;--c-upcoming:#9ca3af;--c-upcoming-bg:#f8fafc;--c-weak:#dc2626;--c-weak-bg:#fdecec;--c-improving:#ea580c;--c-improving-bg:#fff1e6;--c-grey:#6b7280;--c-grey-bg:#f1f3f5;color:var(--brew-ink);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--brew-bg)}a{color:var(--brew-accent);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;border:1px solid var(--brew-border);background:var(--brew-surface);border-radius:8px;padding:8px 14px;transition:background .12s,border-color .12s}button:hover{background:#f0f2f5}button.primary{background:var(--brew-accent);color:#fff;border-color:var(--brew-accent)}button.primary:hover{background:#1d4ed8}button.ghost{background:0 0;border-color:#0000}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font:inherit;border:1px solid var(--brew-border);background:#fff;border-radius:8px;width:100%;padding:8px 10px}label{color:var(--brew-muted);margin-bottom:4px;font-size:13px;display:block}.shell{min-height:100vh;display:flex}.sidebar{color:#d7dee6;background:#11202e;flex-direction:column;flex-shrink:0;width:230px;padding:18px 12px;display:flex}.sidebar .brand{color:#fff;letter-spacing:.3px;padding:6px 10px 18px;font-size:20px;font-weight:700}.sidebar .brand span{color:#f5b301}.nav-link{color:#b9c4ce;border-radius:8px;align-items:center;gap:10px;margin-bottom:2px;padding:10px 12px;font-size:14px;display:flex}.nav-link:hover{color:#fff;background:#1b3041;text-decoration:none}.nav-link.active{background:var(--brew-accent);color:#fff}.nav-section{text-transform:uppercase;letter-spacing:.08em;color:#64788c;margin:16px 10px 6px;font-size:11px}.sidebar .spacer{flex:1}.sidebar .me{color:#9fb0bf;border-top:1px solid #20364a;padding:10px 12px;font-size:13px}.main{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{background:var(--brew-surface);border-bottom:1px solid var(--brew-border);align-items:center;gap:16px;height:58px;padding:0 24px;display:flex}.topbar h1{margin:0;font-size:17px;font-weight:650}.content{flex:1;padding:24px}.card{background:var(--brew-surface);border:1px solid var(--brew-border);border-radius:12px;margin-bottom:18px;padding:18px}.card h2{margin:0 0 12px;font-size:15px}.row{flex-wrap:wrap;gap:12px;display:flex}.grid{gap:12px;display:grid}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--brew-border);padding:10px 12px}th{text-transform:uppercase;letter-spacing:.04em;color:var(--brew-muted);font-size:12px}tbody tr:hover{background:#fafbfc}.badge{background:var(--c-grey-bg);color:var(--c-grey);border-radius:999px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.badge.emath{color:#2563eb;background:#e6efff}.badge.amath{color:#7c3aed;background:#efe6ff}.pill{border-radius:6px;padding:2px 8px;font-size:12px;font-weight:600}.sec-corrections{background:var(--c-corrections-bg);border-left:4px solid var(--c-corrections)}.sec-current{background:var(--c-current-bg);border-left:4px solid var(--c-current)}.sec-upcoming{background:var(--c-upcoming-bg);border-left:4px solid var(--c-upcoming)}.sec-title{padding:8px 12px;font-size:13px;font-weight:700}.muted{color:var(--brew-muted)}.small{font-size:13px}.flex-between{justify-content:space-between;align-items:center;display:flex}.center-screen{place-items:center;min-height:100vh;display:grid}.login-card{width:360px;max-width:90vw}.login-card .brand{text-align:center;margin-bottom:4px;font-size:28px;font-weight:800}.login-card .brand span{color:#f5b301}.err{color:var(--c-weak);margin-top:8px;font-size:13px}.stack>*+*{margin-top:12px}