.signin-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#f7f9fc}.signin-container{width:100%;max-width:400px;padding:2rem;background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #0000001a}h1{margin-bottom:2rem;font-size:1.5rem;text-align:center;color:#333}.form-group{margin-bottom:1.5rem}label{display:block;margin-bottom:.5rem;font-weight:500;color:#555}input{width:100%;padding:.75rem;font-size:1rem;border:1px solid #ddd;border-radius:4px;transition:border-color .2s}input:focus{border-color:#4299e1;outline:none}button{width:100%;padding:.75rem;font-size:1rem;color:#fff;background-color:#4299e1;border:none;border-radius:4px;cursor:pointer;transition:background-color .2s}button:hover{background-color:#3182ce}button:disabled{background-color:#a0aec0;cursor:not-allowed}.error-message{margin-bottom:1rem;padding:.75rem;color:#c53030;background-color:#fff5f5;border:1px solid #feb2b2;border-radius:4px}.success-message{margin-bottom:1rem;padding:.75rem;color:#2f855a;background-color:#f0fff4;border:1px solid #9ae6b4;border-radius:4px}.app{min-height:100vh;display:flex;flex-direction:column}.app-nav{background-color:#2b6cb0;padding:1rem;box-shadow:0 2px 4px #0000001a}.app-nav ul{display:flex;list-style:none;margin:0;padding:0}.app-nav li{margin-right:1.5rem}.app-nav a{color:#fff;text-decoration:none;font-weight:500;transition:opacity .2s}.app-nav a:hover{opacity:.8}.app-main{flex:1;display:flex;flex-direction:column}.home{padding:2rem;max-width:800px;margin:0 auto}.home h1{margin-bottom:1rem}.home p{margin-bottom:1rem;line-height:1.5}.home a{color:#3182ce;text-decoration:none;font-weight:500}.home a:hover{text-decoration:underline}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;background-color:#f7f9fc;line-height:1.5}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}