:root{color:#17202a;background:#f6f8fb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.app-shell{min-height:100vh;display:grid;place-items:center;padding:32px 16px;background:linear-gradient(135deg,rgba(33,150,136,.12),transparent 38%),linear-gradient(315deg,rgba(255,193,7,.12),transparent 34%),#f6f8fb}.signin-panel{width:min(100%,440px);padding:32px;border:1px solid #d9e1ea;border-radius:8px;background:#fff;box-shadow:0 18px 45px #17202a1f}.eyebrow{margin:0 0 8px;color:#006a60;font-size:.78rem;font-weight:700;letter-spacing:0;text-transform:uppercase}h1{margin:0;font-size:2rem;line-height:1.15}.intro{margin:12px 0 24px;color:#5d6d7e;line-height:1.5}.signin-form{display:grid;gap:16px}.field{display:grid;gap:6px}.field span{color:#34495e;font-weight:650}.field input{min-height:44px;width:100%;border:1px solid #bcc8d5;border-radius:6px;padding:10px 12px;color:#17202a;background:#fff}.field input:focus{border-color:#008578;outline:3px solid rgba(0,133,120,.18)}.error-banner{min-height:44px;display:flex;align-items:center;border:1px solid #f0b8b8;border-radius:6px;padding:10px 12px;color:#8a1f1f;background:#fff1f1}.success-banner{min-height:44px;display:flex;align-items:center;border:1px solid #a5d6c8;border-radius:6px;padding:10px 12px;color:#075f4f;background:#effaf6}.submit-button{min-height:44px;border:0;border-radius:6px;color:#fff;background:#006a60;font-weight:700;cursor:pointer}.submit-button:disabled{cursor:wait;opacity:.7}