.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.auth-bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 60% at 20% 20%, rgba(99,102,241,.4), transparent),
        radial-gradient(ellipse 50% 50% at 80% 80%, rgba(118,75,162,.35), transparent),
        linear-gradient(145deg, #1e1b4b 0%, #312e81 45%, #1e293b 100%);
    z-index: -1;
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: 1rem;
}

.auth-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 25px 60px rgba(0,0,0,.3);
}

.auth-logo i {
    font-size: 3rem;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo h2 {
    font-weight: 800;
    margin: .5rem 0 0;
    color: #1e293b;
}

.auth-logo .text-muted { color: #64748b !important; }

/* Forçar tema claro nos campos — corrige conflito com data-bs-theme dark */
.auth-card .form-label {
    color: #334155;
    font-weight: 600;
    font-size: .875rem;
    margin-bottom: .4rem;
}

.auth-card .form-control {
    border-radius: 12px;
    padding: .75rem 1rem;
    border: 1.5px solid #e2e8f0;
    background: #ffffff;
    color: #1e293b;
    font-size: .95rem;
}

.auth-card .form-control::placeholder { color: #94a3b8; }

.auth-card .form-control:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99,102,241,.12);
    background: #ffffff;
    color: #1e293b;
}

.auth-card .input-group-text {
    background: #f8fafc;
    border: 1.5px solid #e2e8f0;
    border-right: none;
    border-radius: 12px 0 0 12px;
    color: #64748b;
    padding: .75rem 1rem;
}

.auth-card .input-group .form-control {
    border-left: none;
    border-radius: 0 12px 12px 0;
}

.auth-card .input-group:focus-within .input-group-text {
    border-color: #6366f1;
    color: #6366f1;
}

.auth-card .form-check-label { color: #475569; font-size: .875rem; }

.auth-card .form-check-input {
    border-color: #cbd5e1;
    background-color: #fff;
}

.auth-card .form-check-input:checked {
    background-color: #6366f1;
    border-color: #6366f1;
}

.auth-card a { color: #6366f1; }

.auth-card .btn-primary {
    background: linear-gradient(135deg, #6366f1, #7c3aed);
    border: none;
    border-radius: 12px;
    padding: .85rem;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(99,102,241,.35);
    transition: transform .15s, box-shadow .15s;
}

.auth-card .btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5, #6d28d9);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,.4);
}

.auth-card .alert { border-radius: 12px; font-size: .9rem; }

.auth-card small.text-muted { color: #94a3b8 !important; }