:root {
    --login-bg: #0f172a;
    --login-card: #1e293b;
    --login-border: #475569;
    --login-border-soft: #334155;
    --login-text: #e2e8f0;
    --login-heading: #f1f5f9;
    --login-muted: #94a3b8;
    --login-label: #cbd5e1;
    --login-accent: #3b82f6;
    --login-accent-hover: #2563eb;
    --login-error: #fca5a5;
    color-scheme: dark;
}

@media (prefers-color-scheme: light) {
    :root {
        --login-bg: #f1f5f9;
        --login-card: #ffffff;
        --login-border: #94a3b8;
        --login-border-soft: #cbd5e1;
        --login-text: #1e293b;
        --login-heading: #0f172a;
        --login-muted: #64748b;
        --login-label: #334155;
        --login-accent: #2563eb;
        --login-accent-hover: #1d4ed8;
        --login-error: #b91c1c;
        color-scheme: light;
    }
}

* {
    box-sizing: border-box;
}

.login-page {
    align-items: center;
    background: var(--login-bg);
    display: flex;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    justify-content: center;
    margin: 0;
    min-height: 100vh;
}

.login-box {
    background: var(--login-card);
    border: 1px solid var(--login-border-soft);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    padding: 40px;
    text-align: center;
    width: 320px;
}

.login-logo {
    border-radius: 12px;
    margin-bottom: 12px;
    width: 64px;
}

.login-box h1 {
    color: var(--login-heading);
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.login-box input {
    background: var(--login-bg);
    border: 1px solid var(--login-border);
    border-radius: 6px;
    color: var(--login-text);
    font-size: 1rem;
    margin-bottom: 16px;
    padding: 12px;
    width: 100%;
}

.login-box input:focus-visible {
    border-color: var(--login-accent);
    outline: 3px solid color-mix(in srgb, var(--login-accent) 35%, transparent);
    outline-offset: 1px;
}

.login-box button {
    background: var(--login-accent);
    border: none;
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    font-size: 1rem;
    padding: 12px;
    width: 100%;
}

.login-box button:hover {
    background: var(--login-accent-hover);
}

.login-box button:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--login-accent) 55%, transparent);
    outline-offset: 3px;
}

.error {
    color: var(--login-error);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.step-label {
    color: var(--login-muted);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.login-field-label {
    color: var(--login-label);
    display: block;
    font-size: 0.78rem;
    margin: 0 0 6px;
    text-align: left;
}

@media (forced-colors: active) {
    .login-box input:focus-visible,
    .login-box button:focus-visible {
        outline: 2px solid CanvasText;
    }
}