:root{--arc-navy-950:#0c174a;--arc-navy-800:#163a5f;--arc-ink:#18213d;--arc-muted:#687084;--arc-border:#e3e7ef;--arc-surface:#ffffff;--arc-soft:#f6f8fb;--arc-soft-blue:#eef2ff;--arc-success:#217655;--arc-warning:#7d6118;--arc-danger:#a23a3a;--arc-radius-sm:8px;--arc-radius-md:12px;--arc-radius-lg:16px;--arc-shadow:0 10px 28px rgba(15,30,78,0.075);--arc-max-width:1180px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif;color:var(--arc-ink);background:var(--arc-soft)}a{color:inherit;text-decoration:none}button,input{font:inherit}.arc-header{height:72px;background:#fff;border-bottom:1px solid var(--arc-border);display:flex;align-items:center;justify-content:space-between;padding:0 4vw}.arc-brand{color:var(--arc-navy-950);font-weight:950;font-size:26px;letter-spacing:.05em}.arc-brand small{display:block;font-size:9px;letter-spacing:.12em;margin-top:-4px}.arc-banner{background:var(--arc-navy-950);color:#fff;padding:44px 4vw}.arc-banner h1{margin:0 0 8px;font-size:36px}.arc-banner p{color:#d8ddef;max-width:760px;line-height:1.55;margin:0}.arc-wrap{max-width:var(--arc-max-width);margin:auto;padding:28px 4vw 70px}.arc-card{background:#fff;border:1px solid var(--arc-border);border-radius:var(--arc-radius-lg);box-shadow:var(--arc-shadow);padding:24px}.arc-btn{border:0;border-radius:var(--arc-radius-sm);background:var(--arc-navy-950);color:#fff;padding:11px 15px;font-weight:750;cursor:pointer}.arc-btn.secondary{background:#fff;color:var(--arc-navy-950);border:1px solid var(--arc-navy-950)}.arc-field{display:grid;grid-gap:6px;gap:6px;margin-top:14px}.arc-field label{font-size:12px;font-weight:750}.arc-field input{width:100%;border:1px solid #d9dee8;border-radius:9px;padding:11px 12px;outline:none}.arc-field input:focus{border-color:#7180c7;box-shadow:0 0 0 3px rgba(91,105,193,.1)}.arc-error{color:var(--arc-danger);font-size:12px;margin-top:10px}.arc-muted{color:var(--arc-muted);font-size:13px;line-height:1.55}.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 72px)}.admin-sidebar{background:var(--arc-navy-950);color:white;padding:22px 16px}.admin-sidebar div{padding:10px 12px;border-radius:8px;margin:3px 0;color:#dfe5ff;font-size:13px}.admin-sidebar div:first-child{background:#23336d}@media (max-width:800px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{display:none}}