:root {
    color-scheme: light;
    --page-bg: #fafafa;
    --card-bg: #ffffff;
    --card-border: rgb(9 9 11 / 0.05);
    --text: #09090b;
    --input-bg: #ffffff;
    --input-border: rgb(9 9 11 / 0.1);
    --focus: #fe9a00;
    --danger: #e7000b;
    --button-bg: #ffb900;
    --button-bg-hover: #ffd230;
    --button-text: #7b3306;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --page-bg: #09090b;
        --card-bg: #18181b;
        --card-border: rgb(255 255 255 / 0.1);
        --text: #ffffff;
        --input-bg: rgb(255 255 255 / 0.05);
        --input-border: rgb(255 255 255 / 0.2);
        --danger: #ff6467;
        --button-bg: #e17100;
        --button-bg-hover: #fe9a00;
        --button-text: #461901;
    }
}

* {
    box-sizing: border-box;
}

/* layout */

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    background: var(--page-bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    font-size: 0.875rem;
    line-height: 1.5;
}

.auth-card {
    width: 100%;
    max-width: 32rem;
    padding: 3rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.05);
}

@media (min-width: 640px) {
    .auth-card {
        padding: 3rem;
    }
}

.auth-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.auth-brand {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.25;
}

.auth-heading {
    margin: 1rem 0 0;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.33;
    letter-spacing: -0.025em;
}

/* form */

.form {
    display: grid;
    gap: 1.5rem;
}

.field {
    display: grid;
    gap: 0.5rem;
}

.field label {
    font-weight: 500;
}

.field label sup {
    color: var(--danger);
    font-weight: 500;
}

.field input {
    width: 100%;
    padding: 0.375rem 0.75rem;
    background: var(--input-bg);
    color: inherit;
    border: 1px solid var(--input-border);
    border-radius: 0.5rem;
    font: inherit;
    font-size: 1rem;
    line-height: 1.5rem;
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.05);
}

.field input:focus {
    outline: none;
    border-color: var(--focus);
    box-shadow: 0 0 0 1px var(--focus);
}

.field input[aria-invalid="true"] {
    border-color: var(--danger);
    box-shadow: 0 0 0 1px var(--danger);
}

.field .error {
    margin: 0;
    color: var(--danger);
}

.button {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--button-bg);
    color: var(--button-text);
    border: 0;
    border-radius: 0.5rem;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.05);
}

.button:hover {
    background: var(--button-bg-hover);
}

.button:focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
}