:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --ink: #18232f;
    --muted: #637083;
    --line: #d9e1ea;
    --brand: #1f8a70;
    --brand-dark: #146354;
    --accent: #2957d8;
    --danger-bg: #ffe8e8;
    --danger: #a43535;
}

* {
    box-sizing: border-box;
}

body {
    align-items: center;
    background: var(--bg);
    color: var(--ink);
    display: flex;
    font-family: Arial, Helvetica, sans-serif;
    justify-content: center;
    margin: 0;
    min-height: 100vh;
    padding: 20px;
}

body,
button,
input {
    font-size: 16px;
    letter-spacing: 0;
}

.login-container {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 14px 36px rgba(24, 35, 47, 0.12);
    max-width: 420px;
    padding: 28px;
    width: 100%;
}

.login-brand {
    align-items: center;
    display: flex;
    justify-content: center;
    margin-bottom: 28px;
}

.login-brand-logo {
    display: block;
    height: auto;
    max-width: 100%;
    object-fit: contain;
    width: 220px;
}

.error {
    background: var(--danger-bg);
    border: 1px solid #ffb8b8;
    border-radius: 6px;
    color: var(--danger);
    font-weight: 700;
    margin-bottom: 16px;
    padding: 10px 12px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    color: #334155;
    display: block;
    font-weight: 700;
    margin-bottom: 7px;
}

.form-group input {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink);
    min-height: 46px;
    padding: 10px 12px;
    width: 100%;
}

.form-group input:focus {
    border-color: var(--accent);
    outline: 3px solid rgba(41, 87, 216, 0.16);
}

.login-button {
    background: var(--brand);
    border: 0;
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
    font-weight: 700;
    min-height: 46px;
    padding: 11px 14px;
    width: 100%;
}

.login-button:hover,
.login-button:focus-visible {
    background: var(--brand-dark);
}

@media (max-width: 480px) {
    body {
        align-items: stretch;
        padding: 12px;
    }

    .login-container {
        align-self: center;
        padding: 22px 18px;
    }

    .login-brand-logo {
        width: 190px;
    }
}