:root {
    color-scheme: dark;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0d1117;
    color: #e6edf3;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #0d1117;
    color: #e6edf3;
}

.page-shell {
    width: min(100% - 2rem, 48rem);
    margin: 0 auto;
    padding: 2rem 0;
}

h1 {
    margin-top: 0;
}

.panel,
.auth-card {
    padding: 1.25rem;
    border: 1px solid #30363d;
    border-radius: 0.75rem;
    background: #161b22;
}

.auth-card {
    max-width: 28rem;
    margin: 2rem auto;
}

form {
    display: grid;
    gap: 0.75rem;
}

input,
button {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid #484f58;
    border-radius: 0.4rem;
    font: inherit;
}

input {
    background: #0d1117;
    color: #e6edf3;
}

button {
    margin-top: 0.5rem;
    border-color: #238636;
    background: #238636;
    color: #ffffff;
    cursor: pointer;
}

.error {
    color: #ff7b72;
}