:root {
    color-scheme: dark;
    --background: #07090d;
    --foreground: #eef1f5;
    --foreground-soft: rgba(238, 241, 245, 0.78);
    --muted: #9aa3b2;
    --border: #2b333f;
    --surface: rgba(17, 21, 28, 0.97);
    --surface-soft: rgba(13, 16, 22, 0.96);
    --primary: #82aaff;
    --primary-strong: #5f8fea;
    --danger: #ff8a98;
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
    --radius-sm: 3px;
    --radius: 4px;
    --space-3: 6px;
    --space-4: 8px;
    --space-5: 10px;
    --space-6: 12px;
    --space-7: 16px;
    --font-ui: system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html,
body {
    margin: 0;
    min-height: 100%;
    background: var(--background);
    color: var(--foreground);
    font-family: var(--font-ui);
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
}

body.auth-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: var(--space-7);
}

.auth-window {
    width: min(360px, calc(100vw - 32px));
}

.auth-card,
.identity-card {
    width: min(420px, calc(100vw - 32px));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    padding: var(--space-7);
    display: grid;
    gap: var(--space-5);
}

.identity-card {
    width: 100%;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    padding: 0;
}

.auth-stack {
    display: grid;
    gap: var(--space-5);
}

.auth-kicker {
    color: var(--muted);
    font-size: 0.6875rem;
    letter-spacing: 0;
}

.auth-title {
    margin: 0;
    color: var(--foreground);
    font-size: 1.5rem;
    line-height: 1.2;
    letter-spacing: 0;
}

.auth-copy {
    color: var(--muted);
    font-size: 0.75rem;
    line-height: 1.55;
}

.form-grid,
.mini-grid {
    display: grid;
    gap: var(--space-4);
}

.bare-login {
    gap: var(--space-5);
}

.split-two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.hidden-input {
    display: none;
}

label {
    color: var(--muted);
    font-size: 0.75rem;
}

input,
textarea,
select,
button {
    font: inherit;
}

input,
textarea,
select {
    width: 100%;
    min-width: 0;
    font-size: 1rem;
    padding: 7px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #090d14;
    color: var(--foreground);
    outline: 0;
}

input:focus,
textarea:focus,
select:focus {
    border-color: rgba(130, 170, 255, 0.55);
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--foreground);
    caret-color: var(--foreground);
    box-shadow: 0 0 0 1000px #090d14 inset;
    transition: background-color 9999s ease-in-out 0s;
}

button,
.auth-link {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #0d121b;
    color: var(--foreground-soft);
    padding: 7px 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    text-decoration: none;
    cursor: pointer;
}

button:hover,
button:focus-visible {
    border-color: rgba(130, 170, 255, 0.45);
    background: #111827;
    color: var(--foreground);
}

.auth-link.is-ghost {
    background: transparent;
    color: var(--foreground-soft);
}

.auth-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.auth-error {
    color: var(--danger);
    font-size: 0.8125rem;
    line-height: 1.5;
}

@media (max-width: 720px) {
    body.auth-screen {
        padding: var(--space-7);
    }

    .auth-card,
    .identity-card {
        width: calc(100vw - 32px);
        padding: var(--space-7);
        gap: var(--space-5);
    }

    .auth-window {
        width: min(360px, calc(100vw - 32px));
    }

    .identity-card {
        padding: 0;
    }

    .split-two {
        grid-template-columns: 1fr;
    }

    .auth-title {
        font-size: 1.25rem;
    }

    .auth-copy,
    .auth-error {
        font-size: 0.75rem;
    }

    .auth-actions {
        width: 100%;
    }

    .auth-actions > * {
        flex: 1 1 0;
    }
}