:root {
    color-scheme: light;
    font-family: Arial, Helvetica, sans-serif;
    color: #172b38;
    background: #eef2f4;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background: #eef2f4;
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-panel {
    width: min(100%, 420px);
    padding: 36px;
    border: 1px solid #d5dee3;
    border-radius: 6px;
    background: #ffffff;
    box-shadow: 0 12px 32px rgba(23, 43, 56, 0.12);
}

.login-logo {
    display: block;
    width: min(100%, 280px);
    height: auto;
    margin: 0 auto 28px;
}

h1 {
    margin: 0 0 28px;
    font-size: 24px;
    font-weight: 600;
    line-height: 1.25;
    text-align: center;
}

.field-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
}

input {
    width: 100%;
    height: 46px;
    padding: 10px 12px;
    border: 1px solid #aab9c2;
    border-radius: 4px;
    color: #172b38;
    background: #ffffff;
    font: inherit;
}

input:focus {
    border-color: #177b82;
    outline: 3px solid rgba(23, 123, 130, 0.18);
}

button {
    width: 100%;
    min-height: 46px;
    border: 0;
    border-radius: 4px;
    color: #ffffff;
    background: #177b82;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

button:hover {
    background: #11636a;
}

button:focus-visible {
    outline: 3px solid rgba(23, 123, 130, 0.28);
    outline-offset: 2px;
}

.login-error {
    margin-bottom: 20px;
    padding: 12px;
    border-left: 4px solid #b42318;
    color: #7a271a;
    background: #fef3f2;
    font-size: 14px;
    line-height: 1.4;
}

@media (max-width: 480px) {
    .login-shell {
        padding: 16px;
    }

    .login-panel {
        padding: 28px 20px;
    }
}