:root {
    --bg: #f5f7fb;
    --panel: #ffffff;
    --text: #172033;
    --muted: #667085;
    --line: #dce4ef;
    --brand: #0f8b8d;
    --brand-dark: #0a6567;
    --danger: #9b2f2a;
    --shadow: 0 18px 48px rgba(23, 32, 51, 0.14);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
}

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

.login-panel {
    width: min(420px, 100%);
    display: grid;
    gap: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.login-logo {
    width: min(220px, 82%);
    height: auto;
    justify-self: center;
    object-fit: contain;
}

.login-heading {
    text-align: center;
}

.login-heading p {
    margin: 0 0 8px;
    color: var(--brand-dark);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.login-heading h1 {
    margin: 0;
    font-size: 30px;
    line-height: 1.08;
    letter-spacing: 0;
}

.login-form {
    display: grid;
    gap: 14px;
}

.login-form label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
}

.login-form input {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px 12px;
    color: var(--text);
    font: inherit;
    font-size: 15px;
    background: #ffffff;
}

.login-form input:focus {
    border-color: var(--brand);
    outline: 3px solid rgba(15, 139, 141, 0.16);
}

.login-error {
    margin: 0;
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--danger);
    font-size: 13px;
    font-weight: 800;
    background: rgba(217, 85, 80, 0.13);
}

.login-button {
    min-height: 46px;
    border: 0;
    border-radius: 8px;
    color: #ffffff;
    font: inherit;
    font-size: 15px;
    font-weight: 900;
    background: var(--brand);
    cursor: pointer;
}

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

.login-button:disabled {
    opacity: 0.68;
    cursor: wait;
}

@media (max-width: 520px) {
    .login-shell {
        align-items: start;
        padding: 22px 16px;
    }

    .login-panel {
        margin-top: 8vh;
        padding: 22px;
    }

    .login-logo {
        width: min(190px, 82%);
    }
}