.larena-auth {
    margin: 0;
    color: var(--sf-on-surface, #1f2937);
    background: var(--sf-surface-1, #f3f4f6);
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.larena-auth,
.larena-auth *,
.larena-auth *::before,
.larena-auth *::after {
    box-sizing: border-box;
}

.theme-light { color-scheme: light; }
.theme-dark { color-scheme: dark; }

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

.larena-auth__panel {
    width: min(100%, 420px);
    padding: 28px;
    background: var(--sf-surface-0, #ffffff);
    border: 1px solid var(--sf-outline-variant, #d1d5db);
    border-radius: 8px;
    box-shadow: var(--sf-ui-shadow-3, 0 12px 28px rgb(15 23 42 / 12%));
}

.larena-auth__eyebrow {
    margin: 0 0 8px;
    color: var(--sf-on-surface-muted, #6b7280);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
}

.larena-auth__title {
    margin: 0;
    font-size: 28px;
    line-height: 1.2;
}

.larena-auth__note {
    margin: 10px 0 24px;
    color: var(--sf-on-surface-muted, #6b7280);
    line-height: 1.5;
}

.larena-auth__alert {
    margin-bottom: 16px;
    padding: 12px;
    color: var(--sf-on-error-container, #7f1d1d);
    background: var(--sf-error-container, #fee2e2);
    border: 1px solid var(--sf-outline-error, #ef4444);
    border-radius: 6px;
}

.larena-auth__errors {
    margin: 0;
    padding-inline-start: 20px;
}

.larena-auth__form {
    display: grid;
    gap: 12px;
}

.larena-auth__field {
    display: grid;
    gap: 6px;
}

.larena-auth__label {
    color: var(--sf-on-surface, #1f2937);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
}

.larena-auth__input {
    box-sizing: border-box;
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--sf-on-surface, #1f2937);
    background: var(--sf-surface-0, #ffffff);
    border: 1px solid var(--sf-outline, #9ca3af);
    border-radius: var(--sf-radius-default, 6px);
    font: inherit;
}

.larena-auth__input:focus-visible {
    border-color: var(--sf-primary, #2563eb);
    outline: 3px solid var(--sf-primary, #2563eb);
    outline: 3px solid color-mix(in srgb, var(--sf-primary, #2563eb) 28%, transparent);
    outline-offset: 1px;
}

.larena-auth__submit {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 16px;
    color: var(--sf-on-primary, #ffffff);
    background: var(--sf-primary, #2563eb);
    border: 1px solid transparent;
    border-radius: var(--sf-radius-default, 6px);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.larena-auth__submit:hover {
    background: var(--sf-primary-hover, #1d4ed8);
}

.larena-auth__submit:focus-visible {
    outline: 3px solid var(--sf-primary, #2563eb);
    outline: 3px solid color-mix(in srgb, var(--sf-primary, #2563eb) 32%, transparent);
    outline-offset: 2px;
}

.larena-auth__hint {
    margin: -4px 0 2px;
    color: var(--sf-on-surface-muted, #6b7280);
    font-size: 13px;
    line-height: 1.4;
}