/* ==========================================================================
   ESTILOS PREMIUM DE INICIO DE SESIÓN / REGISTRO (LOGIN & SIGNUP)
   ========================================================================== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1rem;
    background: radial-gradient(circle at center, rgba(var(--accent-rgb), 0.08) 0%, rgba(9, 9, 13, 0) 70%), var(--bg-color);
}

.login-card {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2.5rem;
    width: 100%;
    max-width: 460px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.login-card:hover {
    border-color: rgba(var(--accent-rgb), 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7), 0 0 20px rgba(var(--accent-rgb), 0.04);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    margin-top: 0.5rem;
    background: linear-gradient(135deg, #fff 40%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

.login-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    background: var(--bg-color);
    padding: 0.3rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 1.8rem;
}

.login-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.7rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
    text-align: center;
}

.login-tab:hover {
    color: var(--text);
}

.login-tab.active {
    background: var(--card-bg);
    color: var(--accent);
    box-shadow: var(--shadow-inset);
}


/* Estilos Google Login */
.oauth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.oauth-divider::before, .oauth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border);
}
.oauth-divider span {
    padding: 0 10px;
}
.btn-google {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0.8rem;
    background: #fff;
    color: #3c4043;
    border: 1px solid #dadce0;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
}
.btn-google:hover {
    background: #f8f9fa;
    box-shadow: 0 1px 3px rgba(60,64,67,0.3);
}