:root {
    --berry-paper: #ffffff;
    --berry-bg: #eef2f6;
    --berry-primary-light: #e3f2fd;
    --berry-primary-main: #2196f3;
    --berry-primary-dark: #1e88e5;
    --berry-secondary-light: #ede7f6;
    --berry-secondary-main: #673ab7;
    --berry-secondary-dark: #5e35b1;
    --berry-grey-100: #f5f5f5;
    --berry-grey-300: #e0e0e0;
    --berry-grey-500: #9e9e9e;
    --berry-grey-700: #616161;
    --berry-grey-900: #212121;
    --berry-shadow: 0 24px 48px rgba(33, 33, 33, 0.12);
    --berry-radius: 22px;
}

.berry-auth-body {
    margin: 0;
    min-height: 100vh;
    font-family: "Roboto", "Segoe UI", sans-serif;
    color: var(--berry-grey-900);
    background:
        radial-gradient(circle at top left, rgba(33, 150, 243, 0.16), transparent 30%),
        radial-gradient(circle at bottom right, rgba(103, 58, 183, 0.16), transparent 34%),
        linear-gradient(180deg, #f9fbfd 0%, var(--berry-bg) 100%);
}

.berry-auth-shell {
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
    padding: 24px 10px;
}

.berry-auth-brand {
    text-align: center;
    margin-bottom: 18px;
}

.berry-auth-brand .sub {
    color: var(--berry-grey-700);
    font-size: 0.82rem;
    margin-top: 4px;
}

.berry-auth-card {
    border-radius: var(--berry-radius);
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    box-shadow: var(--berry-shadow);
}

.berry-auth-card .card-body {
    padding: 24px;
}

.berry-auth-form .form-label {
    font-weight: 700;
    color: var(--berry-grey-900);
    margin-bottom: 6px;
}

.berry-auth-form .form-control {
    min-height: 46px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 12px;
}

.berry-auth-form .form-control:focus {
    border-color: var(--berry-primary-main);
    box-shadow: 0 0 0 0.2rem rgba(33, 150, 243, 0.16);
}

.berry-auth-form .btn,
.berry-auth-card .btn {
    border-radius: 12px;
    font-weight: 700;
}

.berry-auth-primary {
    background: linear-gradient(135deg, var(--berry-primary-main), var(--berry-secondary-main));
    border: 0;
    color: #fff;
}

.berry-auth-primary:hover {
    color: #fff;
    background: linear-gradient(135deg, var(--berry-primary-dark), var(--berry-secondary-dark));
}

.berry-auth-google {
    border: 1px solid var(--berry-grey-300);
    background: #fff;
    color: var(--berry-grey-900);
}

.berry-auth-google:hover {
    background: var(--berry-grey-100);
    color: var(--berry-grey-900);
}

.berry-auth-muted {
    color: var(--berry-grey-700);
    font-size: 0.82rem;
}

.berry-auth-footer {
    text-align: center;
    margin-top: 12px;
    color: var(--berry-grey-700);
    font-size: 0.78rem;
}

@media (max-width: 575.98px) {
    .berry-auth-shell {
        padding: 14px 6px;
    }

    .berry-auth-card .card-body {
        padding: 16px;
    }
}