:root{--bg:#f5f6f8;--surface:#fff;--text:#17191c;--muted:#747981;--line:#e5e7eb;--accent:#1457ff;--danger:#b42318;--radius:18px;--shadow:0 10px 35px rgba(15,23,42,.06);font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;color:var(--text)}*{box-sizing:border-box}body{margin:0;background:var(--bg)}a{color:inherit;text-decoration:none}.page{min-height:100vh}.container{width:min(1160px,calc(100% - 40px));margin-inline:auto}.content{padding:72px 0}.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-weight:750;letter-spacing:-.03em}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.12em;color:var(--accent)}.heading-xl{margin:8px 0 12px;font-size:clamp(34px,5vw,58px);line-height:1.04;letter-spacing:-.045em}.heading-md{margin:18px 0 8px;font-size:22px;letter-spacing:-.025em}.text-muted{color:var(--muted);line-height:1.55}.lead{max-width:650px;color:var(--muted);font-size:19px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.module-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:42px}.module-card{min-height:250px;padding:28px;transition:transform .2s,border-color .2s}.module-card:hover{transform:translateY(-3px);border-color:#bdcaff}.module-number,.nav-number{font-size:12px;color:var(--muted)}.module-link{display:block;margin-top:30px;color:var(--accent);font-weight:650}.button{border:0;border-radius:10px;padding:11px 18px;font:inherit;font-weight:650;cursor:pointer}.button-primary{background:var(--accent);color:#fff}.button-ghost{background:transparent;color:var(--muted)}.button-full{width:100%}.auth-layout{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(430px,100%);padding:42px}.brand-mark{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--accent);color:#fff;font-weight:800;margin-bottom:28px}.form-stack{display:grid;gap:18px;margin-top:30px}.field{display:grid;gap:7px}.field-label{font-size:13px;font-weight:650}.input{width:100%;border:1px solid var(--line);border-radius:10px;padding:13px 14px;font:inherit;background:#fff}.input:focus{outline:3px solid #dce5ff;border-color:var(--accent)}.alert{padding:12px 14px;border-radius:10px;margin-top:20px}.alert-error{background:#fff0ee;color:var(--danger)}.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:#111318;color:#fff;padding:22px 14px;display:flex;flex-direction:column;transition:width .2s}.sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:4px 10px 28px}.icon-button{border:0;background:#252832;color:#fff;border-radius:8px;padding:8px;cursor:pointer}.nav-list{display:grid;gap:5px}.nav-item{display:flex;gap:13px;align-items:center;padding:13px 12px;border-radius:10px;color:#aeb2bc}.nav-item:hover,.nav-item.is-active{background:#252832;color:#fff}.sidebar-foot{margin-top:auto}.module-content{padding:72px clamp(30px,7vw,100px)}.empty-state{margin-top:48px;padding:44px;text-align:center}.empty-icon{margin:auto;width:48px;height:48px;display:grid;place-items:center;border-radius:50%;background:#edf2ff;color:var(--accent);font-size:25px}.sidebar.is-collapsed{width:78px}.sidebar.is-collapsed .nav-label,.sidebar.is-collapsed .sidebar-foot{display:none}.sidebar.is-collapsed+.module-content{margin-left:-202px}@media(max-width:760px){.module-grid{grid-template-columns:1fr}.app-shell{grid-template-columns:78px 1fr}.sidebar{width:78px}.nav-label,.sidebar-foot{display:none}.module-content{padding:44px 24px}.sidebar.is-collapsed+.module-content{margin-left:0}.auth-card{padding:28px}}