:root {
    --auth-ink: #1e2139;
    --auth-bg: #f1f2f9;
    --auth-surface: #ffffff;
    --auth-border: #edeef6;
    --auth-muted: #92929d;
    --auth-accent: #6c5dd3;
    --auth-accent-strong: #5646b8;
    --auth-accent-ink: #ffffff;
    --auth-danger: #ff6a55;
    --auth-danger-tint: #ffe8e3;
    --auth-success: #2ecc71;
    --auth-success-tint: #e0f8e9;
    --auth-radius: 20px;
    --auth-radius-sm: 10px;
    --auth-font: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --bs-body-font-family: var(--auth-font);
    --bs-body-color: var(--auth-ink);
    --bs-border-color: var(--auth-border);
    --bs-border-radius: var(--auth-radius-sm);
    --bs-primary: var(--auth-accent);
    --bs-primary-rgb: 108, 93, 211;
    --bs-danger: var(--auth-danger);
    --bs-danger-rgb: 255, 106, 85;
    --bs-danger-bg-subtle: var(--auth-danger-tint);
    --bs-success: var(--auth-success);
    --bs-success-rgb: 46, 204, 113;
    --bs-success-bg-subtle: var(--auth-success-tint);
    --bs-link-color: var(--auth-accent);
    --bs-link-hover-color: var(--auth-accent-strong);
    --bs-focus-ring-color: rgba(108, 93, 211, 0.25);
}

body.auth-body {
    background-color: var(--auth-bg);
    background-image:
        radial-gradient(circle at 15% 20%, rgba(108, 93, 211, 0.09), transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(77, 138, 240, 0.08), transparent 45%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: var(--auth-ink);
}

.auth-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.auth-box {
    background-color: var(--auth-surface);
    border: 1px solid var(--auth-border);
    border-radius: var(--auth-radius);
    padding: 2.25rem 2rem;
    box-shadow: 0 24px 56px rgba(31, 32, 65, 0.14);
}

.auth-brand {
    text-align: center;
    margin-bottom: 1.8rem;
}

.auth-brand-name {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.01em;
    color: var(--auth-ink);
}

.auth-brand-name::before {
    content: "";
    display: block;
    width: 40px;
    height: 4px;
    background-color: var(--auth-accent);
    margin: 0 auto 1rem;
    border-radius: 999px;
}

.auth-brand-logo {
    max-height: 48px;
    max-width: 100%;
}

.auth-box .form-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: #4b4b5f;
    margin-bottom: 0.35rem;
}

.auth-box .form-control {
    border-radius: var(--auth-radius-sm);
    font-size: 0.85rem;
    border-color: var(--auth-border);
    background-color: #f4f5fb;
    padding: 0.65rem 0.9rem;
}

.auth-box .form-control:focus {
    border-color: var(--auth-accent);
    background-color: var(--auth-surface);
    box-shadow: 0 0 0 3px var(--bs-focus-ring-color);
}

.auth-box .btn {
    border-radius: var(--auth-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.7rem 0.85rem;
}

.auth-box .btn-primary {
    box-shadow: 0 10px 24px rgba(108, 93, 211, 0.32);
}

.auth-box .btn-primary:hover,
.auth-box .btn-primary:focus {
    background-color: var(--auth-accent-strong);
    border-color: var(--auth-accent-strong);
}

.auth-box a {
    color: var(--auth-accent);
    font-size: 0.83rem;
}

.auth-box a:hover {
    color: var(--auth-accent-strong);
}

.auth-box .alert {
    border-radius: var(--auth-radius-sm);
    font-size: 0.82rem;
    border: 1px solid transparent;
}

.auth-box .alert-danger {
    color: var(--auth-danger);
    background-color: var(--auth-danger-tint);
    border-color: #ffd2c7;
}

.auth-box .alert-success {
    color: var(--auth-success);
    background-color: var(--auth-success-tint);
    border-color: #bdeed0;
}