/* 
   Auth UI - Estilo Zen e Mágico
*/

.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #1a1a2e 0%, #0f0f1a 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.auth-overlay.visible {
    opacity: 1;
}

/* Efeitos de partículas mágicas no fundo (opcional, via pseudo-elementos ou imagens) */
.auth-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='50' cy='50' r='1' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
    animation: drift 60s linear infinite;
}

@keyframes drift {
    from { background-position: 0 0; }
    to { background-position: 1000px 1000px; }
}

.auth-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 40px;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: translateY(20px);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-overlay.visible .auth-card {
    transform: translateY(0);
}

.auth-logo {
    font-size: 48px;
    margin-bottom: 10px;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
}

.auth-title {
    font-family: 'Inter', sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.auth-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
    line-height: 1.5;
}

/* Botão do Google */
.auth-google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    background: #ffffff;
    color: #1f2937;
    border: none;
    border-radius: 12px;
    padding: 14px 24px;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.auth-google-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    background: #f8fafc;
}

.auth-google-btn:active {
    transform: translateY(0);
}

.auth-google-icon {
    width: 20px;
    height: 20px;
}

.auth-footer {
    margin-top: 24px;
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

.auth-footer a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
}

.auth-footer a:hover {
    color: #ffffff;
}

/* Spinner de Loading */
.auth-loading {
    display: none;
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.8);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
}

.auth-loading.active {
    display: block;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}