:root{--brand:#849682;--brand-dark:#637461;--ink:#243028;--muted:#66736b;--line:#dfe6e1;--surface:#fff;--background:#f4f7f5;--danger:#a43f3f}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--background)}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sidebar{background:#1f2a23;color:#fff;padding:28px 20px;display:flex;flex-direction:column;gap:28px}.brand{font-size:28px;font-weight:800;letter-spacing:-.5px}.brand small{display:block;font-size:11px;font-weight:500;opacity:.7;margin-top:4px}.nav{display:grid;grid-gap:8px;gap:8px}.nav a{padding:11px 12px;border-radius:10px;opacity:.82}.nav a.active,.nav a:hover{background:hsla(0,0%,100%,.11);opacity:1}.sidebar-footer{margin-top:auto}.main{padding:34px}.header{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:28px}.header h1{margin:0;font-size:30px}.header p{margin:7px 0 0;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 6px 20px rgba(31,42,35,.04)}.card h2,.card h3{margin-top:0}.card.feature{grid-column:span 2}.progress{height:10px;background:#e5ebe7;border-radius:999px;overflow:hidden;margin:18px 0 8px}.progress span{display:block;height:100%;width:0}.button,.progress span{background:var(--brand)}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:11px 16px;color:#fff;font-weight:700;cursor:pointer}.button:hover{background:var(--brand-dark)}.button.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:100%;max-width:430px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px}.auth-card h1{margin:0 0 8px;font-size:32px}.auth-card p{color:var(--muted)}.form{display:grid;grid-gap:14px;gap:14px;margin-top:24px}.field{display:grid;grid-gap:7px;gap:7px}.field label{font-size:14px;font-weight:700}.field input{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:10px;outline:none}.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px hsla(114,9%,55%,.16)}.error{color:var(--danger);background:#fff1f1;border:1px solid #f1caca;border-radius:10px;padding:10px 12px;font-size:14px}.helper{font-size:13px;color:var(--muted);margin-top:16px}@media (max-width:900px){.shell{grid-template-columns:1fr}.sidebar{padding:18px;flex-direction:row;align-items:center;overflow-x:auto}.nav{display:flex}.sidebar-footer{margin:0 0 0 auto}.main{padding:22px}.grid{grid-template-columns:1fr}.card.feature{grid-column:span 1}}