/* Layout */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, #1e293b, #020617);
    padding: 1rem;
}

/* Card */
.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(18px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    color: #fff;
}

/* Typography */
.auth-title {
    font-weight: 700;
    text-align: center;
}

.auth-subtitle {
    text-align: center;
    font-size: 0.9rem;
    color: #cbd5f5;
    margin-bottom: 2rem;
}

/* Inputs */
.form-control {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.18);
    border-color: #6366f1;
    box-shadow: none;
    color: #fff;
}

.form-floating label {
    color: #cbd5f5;
}

/* Button */
.auth-btn {
    padding: 0.75rem;
    font-weight: 600;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

/* Links */
a {
    color: #a5b4fc;
    text-decoration: none;
}

a:hover {
    color: #c7d2fe;
}

/* Errors */
.invalid-feedback {
    color: #fca5a5;
}